Whisper Disc M

MANUAL PART NO. 878010419ISSUED 05-95

_______________________________________________

_______________________________________________

_______________________________________________

_______________________________________________

MODEL _____________ SERIAL NO. ______________

OWNER _______________________________________

Altec Industries, Inc."Utility Equipment and Bodies Since 1929"

Altec Industries Inc. reserves the right to improve models and change specifications without prior notice

WhisperDisc ®

Chipper

OPERATORS, MAINTENANCE,AND PARTS MANUAL

DANGER - This ChipperManual contains importantproduct safety information.Failure to read this manual inits entirety, before operation,service or ordering parts canresult in equipment damage,serious personal injury ordeath.

i

INTRODUCTIONWhisperDisc ® PAGEINTRODUCTION ................................................................................................................................. iiWARRANTY ....................................................................................................................... ................ iiiSECTION I EQUIPMENT DESCRIPTION

DESCRIPTION ........................................................................................................................... 1-1NOMENCLATURE ...................................................................................................................... 1-2SPECIFICATIONS ...................................................................................................................... 1-3REFERENCE SPECIFICATIONS ............................................................................................... 1-6OUTLINE DIMENSIONS............................................................................................................. 1-7

SAFE OPERATIONSAFE OPERATlON..................................................................................................................... 2-1CONTROLS IDENTlFlCATION ................................................................................................... 2-2CLOTHING AND PERSONAL PROTECTIVE EQUIPMENT ...................................................... 2-3BRUSH PREPARATlON ............................................................................................................. 2-3SET UP OF EQUIPMENT ........................................................................................................... 2-4START UP AND SHUT DOWN OF CHIPPER ............................................................................ 2-5FEEDING BRUSH TO CHIPPER................................................................................................ 2-6

SAFETY AND OPERATING DECALS ........................................................................................ 2-8SECTION III LUBRICATIONSECTlON IV MAINTENANC E

DAILY INSPECTION................................................................................................................... 4-1INSPECTlON OF FASTENERS .................................................................................................. 4-1KNIVES AND ANVIL ................................................................................................................... 4-2Inspection of Knives and Anvil .................................................................................................... 4-2Change of Knives and Anvil ........................................................................................................ 4-3Sharpening of Knives and Anvil ................................................................................................. . 4-4Adjustment of Knife and Anvil Gap ............................................................................................. 4-5DRIVE BELT ADJUSTMENT ...................................................................................................... 4-6ADJUSTMENT OF "V" BELTS.................................................................................................... 4-7ENGINE RPM ............................................................................................................................. 4-8RECOMMENDED TORQUE FOR BOLTS ................................................................................. 4-8TROUBLE SHOOTING CHART.................................................................................................. 4-9MAINTENANCE INTERVALS .....................................................................................................4-12LIGHTING AND BRAKES ELECTRICAL DIAGRAM ..................................................................4-13HYDRAULIC SCHEMATICS .......................................................................................................4-14

SECTION V OPTIONAL EQUIPMENTSECTION Vl CATALOG

ORDERING INFORMATlON ....................................................................................................... 6-1ILLUSTRATED PARTS LISTSInfeed .......................................................................................................................................... 6-2Chipper and Power Train ........................................................................................................ .... 6-4Trailer .......................................................................................................................................... 6-7Hydraulic System ........................................................................................................................ 6-9Engine Installation (Ford) ............................................................................................................6-11Engine Installation (Caterpillar) ................................................................................................... 6-13Optional Engine Equipment ........................................................................................................ 6-17Electrical .....................................................................................................................................6-18Miscellaneous Options ................................................................................................................6-20Operation and Safety Decals ......................................................................................................6-22Optional Flow Control Valve .......................................................................................................6-24Articulating Drawbar....................................................................................................................6-25Hydraulic Tool Couplers ..............................................................................................................6-28Hydraulic Feedwheel Lift ............................................................................................................. 6-30Folding Feed Table .....................................................................................................................6-33Surge Brakes ..............................................................................................................................6-34

SECTION Vll VENDOR LITERATURE

ii

INTRODUCTIONWhisperDisc ®

The purpose of this manual is to provide the user with specifications and procedures for operation, maintenance,and repair of the Whisper Disc Chipper. The hazards inherent in operating chipping equipment, dictate the needto emphasize safety throughout this manual. In order to highlight this consideration, the material whichaddresses safety is preceded by the following signal words:

Likelihood of occurrenceDegree of Potential Injury or Damage

DANGER

WARNING

CAUTION

Will occur if warning is ignored .

Can occur if warning is ignored.

Will or can occur if warning is ignored.

Severe

Severe

Minor

The chipper was designed and manufactured in accordance with industry standards and has been providedwith construction features designed to provide safeguards against injury. Construction features alone do notensure complete safety. In addition, the warnings outlined in the operation, maintenance, and repair sectionsof this manual must be observed.

The scope of this manual is limited to Operation, Maintenance and Parts. Discussion of repair is limited tominor repair which may be required in the field. For more extensive repair requirements contact the AltecService Department who will either provide guidance or arrange for repair at an Authorized Repair Center. Thetopics of safety discussed are those situations which occur within the scope of the material covered. Everycircumstance or combination of circumstances which could be a hazardous situation may not be discussed.But, knowledge of the material covered and training in safe operation should provide the operator with a basisfor good judgment in all situations.

It is the responsibility of the owner or employer using this chipper to ensure that the operator is qualified andobtains training in the safe operation of the chipper. It is also the owner's responsibility to provide for regularlyscheduled preventative maintenance and repair of the chipper, using only factory-approved parts. Modificationof any part of the chipper can create a new safety hazard. If the chipper is modified or rebuilt it must be doneunder control of Altec Industries, Creedmoor Division.

It is a further responsibility of the owner or employer to indoctrinate the operating personnel in all the specificrequirements, government regulations, precautions, and work hazards which exist in a work situation andensure that all involved take the necessary precautions and safety measures.

iii

INTRODUCTIONWhisperDisc ®

LIMITED WARRANTYAltec Industries, Inc. warrants new machinery manufactured and sold by it to be freefrom defects in material and workmanship subject to the following provisions:

During the first year, after date of delivery of the product to the initial user, a new orrepaired part whichever ALTEC elects, will be provided in place of any parts which arefound, upon ALTEC's inspection, to be defective in material or workmanship. Thereis no charge for labor during the warranty year. There is no charge for travel time orexpenses to the user's location during the first 90 days of the warranty year.

This warranty is valid only if the machine has been properly operated and maintainedin accordance with the Altec Operators and Maintenance Manuals.

No warranty is made with respect to items made by others which may be supplied byAltec on special order. For engine warranty see Appendix Section of this manual orcontact the engine manufacturer. This warranty does not include any cost fortransporting the product to an Altec service location.

THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY OTHER WARRANTIES,EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITYOR FITNESS FOR A PARTICULAR PURPOSE. REMEDIES UNDER THISWARRANTY ARE EXPRESSLY LIMITED TO THE PROVISION AND INSTALLATIONOF PARTS, AS SPECIFIED ABOVE, AND ANY CLAIMS FOR OTHER LOSS ORDAMAGES OF ANY TYPE (INCLUDING, WITHOUT LIMITATION, LOSS FROMFAILURE OF THE PRODUCT TO OPERATE FOR ANY PERIOD OF TIME; OTHERECONOMIC OR MORAL LOSS; OR DIRECT, IMMEDIATE, SPECIAL, INDIRECTOR CONSEQUENTIAL DAMAGE) ARE EXPRESSLY EXCLUDED.

In order to process claims under the foregoing warranty, it is necessary thatall such claims be reported promptly to us or to the authorized dealer from whomthe equipment was purchased, who will be authorized to furnish or arrange forrepairs or replacement within the terms of the foregoing warranty.Any such claim must include the following: 1. Dealer from whom purchased 2. Date of delivery 3. Serial No. of unit (trailer, skid, etc.) 4. Basic Unit Serial No. 5. Engine make and Serial No. 6. Length of time in use 7. Date of failure 8. Nature of failure

1-1

SECTION IEQUIPMENT DESCRIPTIONWhisperDisc ®

GENERAL DESCRIPTION

The Whisper Disc Chipper is a trailer-mounted machine designed to cut brush and tree limbs into wood chips.The unit is capable of handling limbs up to 12" in diameter by any length. It may be powered by a selectionof gasoline or diesel engines. Power is transmitted to the chipping mechanism through a clutch and V-beltdrive. Due to the number of variations in the Whisper Disc Chipper engines and the volume of material, VendorEngine manuals are supplied separate of this manual. For your reference, a list of appropriate manuals forthe various engines supplied is in the Vendor Literature Section of this manual.

The chipping section of the unit consists of a 2" thick - 40" diameter machined and balanced revolving steeldisc. It contains two full knife pockets and two (2) replaceable knives in each pocket. The disc revolves atapproximately 1200 RPM in two (2) spherical roller bearings. The disc revolution chips the wood and by useof six (6) reinforced fan blades attached to the back, throws the chips out of a 360° swiveling directional chute.The system is enclosed in a steel housing. At the infeed opening of the chipper are two (2) horizontallymounted hydraulic powered feed rollers to ensure steady and controlled feeding of the wood.

The self contained hydraulic system to power the feed rollers includes a reservoir tank, pump, directional valveand two (2) motors. This simple system allows low maintenance and a high powered feed to the chipper.

The trailer is an all-welded steel unit with leaf spring suspension and is equipped with all devices required bythe National Highway Traffic Safety Administration for towing, both day and night.

The Whisper Disc Chipper has been engineered to operate at reduced noise levels. Sound Levels of less than80 db(A) at a distance of 50 feet are typical for full throttle operation without brush being chipped. Noise levelis higher when chipping and is dependent on the type of brush being chipped.

1-2


HINGED HOOD

TRAILER

DRAWBAR

DEFLECTOR

DISCHARGE CHUTEFENDERCLEARANCE LIGHTS (RED)

INFEEDHOPPER

DISCHARGE CHUTE

ENGINE

TRAILER

DROPSTAND

ENGINE CONTROLS

DISC HOUSING

HINGED HOOD

I.D. LIGHTS

INFEEDHOPPER

REAR JACKSTAND(OPTIONAL)

TIRES CLUTCH LEVER SAFETY CHAINS

NOMENCLATURE

CLEARANCELIGHTS(AMBER)

TOWINGEYE

FEEDWHEELCONTROLBAR

DEFLECTOR

TOWINGEYE

FEEDWHEELCONTROL BAR

FENDERENGINE

STOP, TAIL & TURN DROPSTAND

BREAKAWAYSWITCH

DRAWBAR

1-3


GENERAL SPECIFICATIONS

CHIPPER CAPACITY - is material 12" in diameter.

CHIPPING SPEED - Up to 120 fpm

DISC SIZE - 40 in. diameter, 2 in. thickness

DISC DRIVE - clutch and V-belt

DISC RPM - 1200 RPM

IN-FEED - two horizontally mounted hydraulicallypowered feed rollers

IN-FEED HOPPER - Width x height 35 1¦2 x 29 in.,height above ground 21 in., distance to feed wheels36 in.

IN-FEED OPENING - 14 x 17 in.

ENGINE STANDARD - Ford CSG649, 6 cylindergasoline engine

FUEL TANK CAPACITY - 22 gallons

TONGUE WEIGHT - is approx. 200 to 300 Ibs.

SOUND LEVEL - is 80 decibels at 50 ft. 360° aroundthe unit, without brush being chipped. Noise level ishigher when chipping and is dependent on the type ofbrush being chipped.

WEIGHT - is approximately 4580 lbs.

DIMENSIONS - length = 178 in.width = 85 in.height = 105 in.

FASTENERS - are SAE No. 8

TRAILER AND ACCESSORIE S

TRAILER FRAME ASSEMBLY - is 6 in. structuralsteel channel, 8.2 lbs./ft., unitized construction withsupport gussets.

SAFETY CHAINS - one (1) 3¦8 in. 11 feet long withforged steel slip hooks on each end; steel loops arewelded on trailer to ensure proper chain routing andto avoid side stresses.

AXLE - is two-wheeled, 3 in. diameter x 74 in. track,6000 Ib. capacity minimum.

AXLE SPRINGS - One set each side of the axle,each consisting of 6-leaves measuring 7/16" thick (27-3¦8" long), Total spring capacity is 6000 Ib.

TIRES - are two (2) each, tubeless 8 ply radialblackwall 7.50 x 16 - 2780 lb. capacity at 65 psi.Wheels are 16" x 6" and have a 3040 Ib. capacity.

DROP STAND - is an adjustable, screw-type, with atop wind handle. It comes with a disc foot asstandard equipment. A caster wheel can be suppliedas an option. The drop stand folds and locks fortowing. Lift capacity is 2000 Ib. minimum (1000 lb. forthe optional caster wheel).

DRAWBAR - is 3 1¦2" square steel welded mechani-cal tubing. Towing eye is 3 in. I.D. minimum withvertical load capacity of 2000 Ibs. and gross trailerweight capacity of 10,000 Ibs. Eye is bolted ontodrawbar. The drawbar is vertically adjustable in twopositions above the ground to allow for variable trailerhitch heights on the truck. An optional adjustingdrawbar is available that allows fore and aft adjust-ment of the drawbar in 2 increments of 12 incheseach.

LIGHTING/ELECTRICAL SYSTEM - is 12 volt andincludes two (2) combination tail, stop and directionlights in a molded recess polycarbonate mount withgrommet , seven (7) red reflective clearance orrunning lights, (2) two yellow reflective clearance orrunning lights, one (1) license plate light. All wiring isfitted in a guarded wiring harness with 6-prongmating connector extending 31 in. from the center ofthe towing eye. Wiring meets SAE J 895 APR 86.

BRAKES - Electric trailer brakes are furnished asstandard. Brakes are drum and shoe type with 12 x2 inch shoes. With all the brake components con-nected into the system, the brake will operate asfollows: When the electrical current is fed into thesystem by the controller, it flows through the electro-magnets in the brakes. The high capacity electro-magnets are energized and are attracted to therotating armature surface of the drums which movesthe actuating levers in the direction that the drumsare turning.

1-4


BRAKES (Cont'd) - The resulting force causes theactuating cam block at the shoe end of the lever topush the primary shoe out against the inside surfaceof the brake drum. The force generated by theprimary shoe acting through the adjuster link thenmoves the secondary shoe out into contact with thebrake drum.

BREAKAWAY SWITCH - Mounted on the tongueof the chipper with a lanyard for attachment to thetowing vehicle. If the chipper disengages from thetowing vehicle the lanyard pulls a pin out of thebreakaway switch which then activates the electricbrakes. The breakaway switch is installed so thebrakes activate before the safety chains tighten.

ENGINE AND ACCESSORIES

ENGINE SPECIFICATIONS (Gas)

FORD CSG649 six (6) - cylinder gasoline engine,complete with standard Venturi carburetor,mechanical governor, spin-on oil filter, dry type airfilter, 12-volt, 37-amp capacity alternator and starter,centrifugal vacuum advance distributor, fuel pumpwith fuel filter. Instrument panel with throttle andchoke controls, oil pressure and water temperaturegages, ammeter, tachometer, hourmeter and low oilpressure, high temperature of engine water shutdown system. BATTERY is a 12-volt, 330 crankingperformance amp, mounted inside a battery box,with a removable cover and a lockable pin. Plywooddividers are supplied to protect the battery. ENGINEACCESS SIDE PANEL is provided. CLUTCH is aheavy duty spring-loaded truck-type. MUFFLER is a5 in. O.D. x 17 in. long, spark-arresting type, mountedbelow engine when the exhaust is routed under theengine.

THROTTLE - is Vernier push-button type.

OPTIONAL ENGINES

John Deere 4039 Naturally aspirated diesel engine.John Deere 4039T turbocharged diesel engine.Cummins 4B39T turbocharged diesel engine.Caterpillar 3054 DINA diesel engine.Caterpillar 3054 DIT turbocharged diesel engine.

FUEL TANK - is a heavy-duty, welded certified typeand meets FHWA standards for highway vehicles.Capacity is 22 gallons, minimum. The fuel line isbraided rubber tubing and feeds from the top of thetank.

CHIPPING SYSTEM

CHIPPER CUTTING DISC - is 40" in diameter x 2"thick disc with two (2) full knife pockets, 180 degreesapart. The entire face and rim of the cutting discismachined to exact tolerances. Heavy-duty chipperhood has 3¦16" sides and 1¦4" top. Chipper hood is

connected with 1" diameter locking pin. Stationarysection of chipper hood is supported by 1¦4" x 2" x 2"angle iron. Cutting disc center hub is 1-1¦8" x 15" x 16"weldment for adequate support. Knife fastener nutsare recessed into the chipper disc for wear protec-tion.

CHIPPER CUTTING DISC SHAFT AND BEARINGDisc is supported by a shaft that is 4" in diameter atthe hub. Shaft is supported by two bearings, one oneash side of the disc. Bearings are 2 7¦16" flange typewith removable mounts for easy replacement.

CHIPPER KNIVES - are four (4) double-edged highcarbon, high chrome steel mounted in two full knifepockets—180° apart. Knifes are fixed and non-ad-justable. Each knife is 4" wide x 3¦8" thick x 7 1¦4" long.Blade hardness is 57-59 RC on the Rockwell hard-ness scale.

ANVIL - Is a 13 3/4" long by 5 1/4" wide piece of HRSwith a 90° bend. It is mounted on the transition andprovides a stationary cutiing surface for the rotatingknives.

DISC DRIVE SYSYTEM - The disc is driven by aStein power take off. The PTO is attached directly tothe engine output shaft and is engaged/disengagedby an external lever. Power is transferred from thePTO to the disc shaft by three (3) V-belts operatingon multi-groove sheaves installed on the PTO outputshaft and disc shaft. Removable belts guards arefurnished to completely enclose all power systems.

HYDRAULIC FEED SYSTEM - includes two (2)heavy-duty hydraulically powered feed wheels, 17"long minimum by 7 1¦2 " in diameter, each equippedwith eight (8) 1" wide sharpened bars. Both wheelsare supported by bearings located at the extremeend of each wheel. Top feed wheel has two (2) 15'’adjustable springs for ample down pressure locatedone (1) each side of top feed wheel.The feed wheel

1-5


HYDRAULIC SYSTEM

GENERAL - Basic Hydraulic System is an opencenter type, 8 gpm system operating at 2,000 psi,consisting of a reservoir, gear pump and main controlvalve. The complete hydraulic feed system operateswith a maximum pressure of 2,500 psi.

HYDRAULIC PUMP - A fixed displacement, beltdriven pump is utilized to supply hydraulic oil flow.

HYDRAULIC TANK- Rectangular thirteen (13) gal-lon capacity minimum with internal cooling baffles.The tank provides filler cap with dipstick for oil filllevel, return filter, and strainer. The suction line isequipped with an internal wire mesh strainer and areturn line, replaceable 10 micron cartridge-typefilter is provided.

FITTINGS - Are SAE O-ring or 37° JIC flare type andare plated.

OPTIONAL EQUIPMENTOptional Ball Coupler Drawbar (for 2 5/16 in. ball)Optional 2 1/2" Lunette EyeTool BoxTool KitFront mounted cone holderRear mounted cone holderHub CapsArticulating DrawbarFolding FeedtableSurge Brakes

NOTICE: Engineering specifications are subject tochange without prior notice.

motors are powered by a 3000 PSI hydraulic pump.The complete feed system operates at 2000 PSI witha maximum pressure of 2500 PSI. Hydraulic flow tothe feed wheels is divided so that the feed wheels arepowered equaly. The feed wheels direction is con-trolled by a control bar located at the top and sides ofthe in-feed opening. In the control bar "OUT" positionthe feed wheels feed limbs/brush into the cuttingdisc. With the control bar pushed in slightly, the feedwheels go into neutral. With the control bar in the "IN"position, the feed wheels reverse and force limbs/brush back out the in-feed opening. An optionalmanual flow control is available that allows the op-erator to control the in-feed speed from 0 fpm to themaximum of 120 fpm.

CHIP TRANSFER SYSTEM

MANUAL/AUTOMATIC LOWER FEED WHEELCLEANOUT- A 17 1¦2 x 9 3¦4 spring loaded doorlocated under the bottom feed roller automaticallyopens to remove debris from the roller. Manualopening of the cleanout door can be performed afterthe unit has been shut down and the feed wheel is nolonger turning.

BLOWER - is six (6) reinforced paddles welded oncutting disc for complete discharge and eliminationof chute plugging. Paddle dimensions are 3" x 5"plate, with support, x 3¦8" thick.

INFEED HOPPER - is 35-1¦2" wide x 29" high andsupported by a 3¦4" pipe welded completely aroundthe opening. Hopper length is 36" from nip point atfeed wheels to end of hopper. The hopper is con-structed of 10 gauge steel. Top feed wheel yokeincludes two (2) 3¦4 " x 1 x 6 wear strips to ensuresmooth operation. A shut-off bar is located on three(3) sides of the infeed chute allowing actuation of thefeed wheels forward/off/reverse.

DISCHARGE TRANSITION - The dischare transi-tion from the chipper housing to the discharge chuteis from 9" square to 8" round x 3¦16” thick steelweldment.

DISCHARGE CHUTE - is a 6 1¦2 x 8 3¦4 rectangularenclosure 90" long, it is of sheet metal constructionwith 360 continuous swivel and easily adjustablechip deflector.

1-6


REFERENCE SPECIFICATIONS:

1. American National Standard Safety Requirementsfor Tree Care Operations - Pruning, Trimming,Repairing, Maintaining, and Removing Trees, andCutting Brush, ANSI Z133.1 - 1988

2. American National Standard Specifications forSafety Color Codes, ANSI Z535.1 - 1991.

3. American National Standard Criteria for SafetySymbols, ANSI Z535.3 - 1991.

4. American National Standard Specifications forProduct Safety Signs and Labels, ANSI Z535.4 -1991.

5. American National Standard for Accident Preven-tion Tags for Temporary Hazards, ANSI Z535.5 -1991.

6. Federal Register - Occupational Safety and HealthAdministration, Department of Labor, Part 1910.Occupational Safety and Health Standard PactPart 1926. Safety and Health Regulation for Con-struction.

7. American Welding Society Structural WeldingCode, ANSI/AWS D1.1 - 1990.

8. US. Department of Transportation Federal High-way Administration. Federal Motor Carrier SafetyRegulations - February, 1992.

1-7


OUTLINE DIMENSIONS

84 15/16

35 1/2

42 1/2

78

29

21 1/8

178 1/8

111 5/16

24

105

22 1/2

SECTION IIOPERATION

2-1

WhisperDisc ®

SAFE OPERATION

Operational personnel must be familiar with the contents of this manual and trained in theoperation of the chipper before attempting operation. Serious injury, or even death, can resultfrom the improper or careless use of this equipment.

Operation must be limited to:

1. Designated, competent, and experienced persons.

2. Trainees or untrained persons under the direct supervision of qualified persons.

3. Maintenance and test personnel, only in so far as it necessary for the performance of their duties.

Operators and trainees shall meet the following qualifications:

1. Have good vision in both eyes

2. Hearing, with or without hearing aid, must be adequate for the specific operation.

3. A history of mental stability and not subject to epileptic seizures, dizziness, or any other disability which may cause injury to himself or other persons on the job site.

4. If an operator becomes physically or mentally unfit he shall disqualify himself.

In addition to the above listed requirements, the operator shall:

1. Demonstrate the ability to comprehend and interpret all placards, operator's manuals, safety codes, appropriate governmental regulations, and other information pertinent to safe chipper operation.

2. Possess knowledge of emergency procedures and implementation of the same.

3. Demonstrate to the employer the ability to operate the specific type of equipment or provide satisfactory evidence of qualifications and experience to do the same.

4. Recognize any potential problem and alert the owner of any maintenance required by the chipper.

5. Fully comprehend the operating procedures as outlined in this manual.

6. Not operate this machine while under the influence of drugs or alcohol.

! WARNING

SECTION IIOPERATION

2-2

WhisperDisc ®

FIGURE 2-1

CONTROLS IDENTIFICATION

TACHOMETER

CLUTCH LEVERSHOWN IN ENGAGEDPOSITION

OIL PRESSURE

AMMETER

ENGINE TEMP

1. Clutch Lever - In horizontal position the clutch isdisengaged, when in the vertical position the clutchis engaged. The lever is spring loaded to remain ineither position.

2. Ignition - Key/ Starter Switch - Insertion of the keyand rotation clockwise turn on the ignition. Addi-tional rotation of the key energizes the starter.

3. Starter Button - Depression of the starter buttonenergizes the starter motor.

4. Choke - (Gasoline engines only) A push/pull knob,when extended, enriches the fuel mixture for coldstarting conditions.

5. Throttle - A rubber capped button in the center of thethrottle knob releases the throttle knob for push/pulloperation. Pull increases the engine speed. Knobrotation counterclockwise provides fine adjustmentof increase in speed.

6. Ammeter - Provides an indication of current flow;positive indication is current flow charging the bat-tery, negative flow indicates the battery is discharg-ing.

7. Oil Pressure - Indicates engine lubrication oil pressure.

8. Engine Temperature - Indicates engine tempera-ture in °F.

9. Tachometer - Indicates engine R.P.M.

10. Override Button - This button must be depressed,while starting the engine, to override the low oilpressure, high temperature of engine water shutdown system.

THROTTLE

CHOKE

IGNITION

OVERRIDE BUTTON

STARTER BUTTON

CLUTCH LEVERSHOWN IN DISENGAGED POSITION

SECTION IIOPERATION

2-3

WhisperDisc ®

CLOTHING AND PERSONAL EQUIPMENT

WARNING -Persons working close to the chipper shall wear appropriate clothing and personalprotective equipment to guard against possible injury caused by whipping branches, flying debris andexcessive noise levels. Failure to wear the proper clothing as outlined below can result in injury fromclothing becoming entangled in moving brush. Furthermore, an operator whose clothing becomesentangled can be pulled into the chipper causing serious personal injury or death. Failure to wear theproper protective equipment can result in injury from flying debris, moving brush, whipping branches,or excessive noise levels.

1. CLOTHING: shall be free of all decorations and loose parts which could become entangled in the brushbefore being fed. Clothing should be close fitting, but not so tight as to hamper movement. Gauntlet type gloves,loose scarves, neckties, and jackets with straps at the wrists or shoulders should not be used. Hooded sweat shirtsmay be worn if the hoods are pulled tightly around the face and the drawstrings are carefully tucked inside the collar.If it becomes desirable to remove the hood, it should be tucked into the back of the collar to prevent entanglementin whipping brush.

2. PROTECTIVE EQUIPMENT: Hard hats, safety goggles and ear protectors are a must when operatinga chipper. Hard hats should be worn without any under-chin strapping. Eye protectors should be the wraparoundgoggle type. Hard hat mounted shields offer a greater area of facial protection. Avoid the use of glasses whichhook over the ears. Plug type ear protectors are preferable to muff types. The plug type cannot be entangled bywhipping branches.

Stones trapped in crotches, cans caught in leaves,nails driven into branches and wire wrapped limbsare all examples of foreign materials that can causedamage to the chipper. Such materials will not onlydamage the cutting edges, they may also cause thecutting blades to shatter, with resultant fragmentsbeing discharged. Fragment ejection can causepersonal injury or damage to nearby property.

Pre-trim the brush to a size and shape that will allow itto feed easily through the feed housing to the cuttingedges. The size and growth direction of most brancheswill allow the self-feeding action of the chipper's feedwheels to bend them toward the main stem, permittingpassage through the feed opening. Many evergreens,however, have side branches that grow toward the butt

WARNING

end of the main stem rather than toward the tip. Whenbrush of this shape is pulled into the cutting mechanism,the side branches will spread apart,rather than beingpushed inward toward the main stem, and the branchwill not pass through the opening. A similar "no feed"situation can develop if the branch has crotches whichare too wide or too stiff to be bent by the chipper's feedmechanism. Where side branches grow toward thebutt end, or where crotches are too wide or too stiff topermit easy passage through the feed opening, thebrush should be pre-trimmed with an appropriate cuttingtool before it is fed to the chipper.

SAFETY CHECK

Before start up of the engine or chipper, perform thefollowing walk around safety check.1. Ensure the infeed hopper is free of all foreign

objects.2. Confirm the discharge chute is clear and directed

away from people.3. Look under the chipper for any evidence of a oil leak.4. Ensure all fasteners are in place and secure.5. Check the hood pin to establish it is in place and

secured with a hair pin clip.6. Place the infeed control bar in its neutral (mid)

position.

BRUSH PREPARATION

To minimize the dangers from flying debris and toextend the life of the chipper's cutting edges, all foreignmaterials should be removed from the brush before itis fed to the chipper. Properly de-limbing the brush willpermit easy passage through the feed opening,eliminating hangups in the feed housing.

SECTION IIOPERATION

2-4

WhisperDisc ®

SETUP OF EQUIPMENT

Work site preparation and organization is a majorfactor in the safety of chipper operation. Thefollowing guidelines should be observed byoperating personnel:

1. Select a work site out of the mainstream of highwaytraffic, but not too close to houses or other inhabit-able buildings.

2. Establish adequate warning and diversion systemsfor both automotive and pedestrian traffic. Signs,cones, and flagmen may be required, depending oncircumstances.

3. Do not set up the chipper directly beneath a treebeing trimmed.

4. Provide enough room on the curbside of the chipperto maneuver while feeding brush.

5. Clear the ground directly beneath and around thechipper of flammable materials. Hot sparks from thechipper's engine exhaust are capable of startingfires.

6. Confirm that no one is working overhead.

7. Lower the feed table and clear of all tools and foreignobjects.

8. Ensure that all persons who are working in the areaare wearing required personal protective equip-ment.

9. Exclude all personnel not feeding the chipper fromthe feed and discharge area of the chipper.

10. Position the exhaust deflector assembly in thedesired direction for chip discharge.

11. If the chipper is unhitched from the towing vehiclefor operation, always chock the wheels and lowerthe front jackstand. If the chipper is equipped withan optional rear jackstand it to must be lower whenthe chipper is unhitched.

WARNING

Do not attempt to hitch or unhitch the chipper froma towing vehicle without sufficient help. Ensuredropstand is lowered and both trailer wheels arechocked. The chipper is heavy and could roll outof control on a grade. Serious injury to personnelor property damage could result. The chippertongue weight is too heavy to be lifted safely byone man. Lower the dropstand to support thetongue weight. Serious muscle strains could oc-cur by lifting the tongue. Use the adjustable torquejack.

TOWING THE CHIPPER

Before the chipper is towed on a public road properly,attach the hitch, electrical connector, breakawayswitch and safety chains. The safety chains should becrossed under the tow bar.

Ensure the feed table is closed and latched.

If the chipper is equipped with the optional articulatingdrawbar ensure the frame is in the towing positionbefore movement.

Ensure the vehicle being used to pull the chipper isadequate for the job.

WARNING

SECTION IIOPERATION

2-5

WhisperDisc ®

START-UP AND SHUT DOWN OF CHIPPER

ENGINE START

1. Ensure that the infeed control bar is in its neutral(mid) position

2. Refer to figure 2-1. On gasoline engines pull thechoke knob out slightly.

3. Depress the button in the center of the throttle knoband pull the throttle rod out all the way, to establishits full length, then push it in about half way.

4. Ensure the clutch lever is in its disengaged, horizon-tal position.

5. Push the override button and turn the ignition key/starter switch fully clockwise to energize the starter.Pull the choke knob if the engine is hesitant aboutstarting. Release the override switch when the oilpressure needle breaks contact with it's rest and theengine starts.

6. When the engine starts, allow it to run for severalminutes at half throttle. Check the oil pressuregauge to confirm pressure is developed.See Engine Manual

CHIPPER START

1. When the engine is running smoothly at approxi-mately 1000 RPM, push the clutch lever toward itsvertical position to engage the clutch. Do not pushthe lever too fast or too slow as either extreme cancause excessive clutch wear. The disc should beginto rotate without causing the engine to lose speed orstall. If the engine begins to stall, it indicates theclutch is being engaged too quickly or the engine isrunning too slowly.

2. Listen to the sound of the engine and disc. Anystrange sounds should be investigated promptlybefore running at full throttle.

3. When the disc is running smoothly, pull the throttlecontrol knob out to its maximum position. Theengine should now be running at its factory setspeed.

ENGINE AND CHIPPER SHUTDOWN

1. To shutdown the chipper, place the infeed controlbar in its neutral (mid) position.

2. Throttle the engine speed to idle.

3. When the engine has slowed to idle speed, disen-gage the clutch.

4. Turn off the ignition switch, and remove the ignitionkey.

5. If the chipper is equipped with the optional foldingfeed table close and latch it before movement.

5. Do not leave the chipper unattended until the dischas stopped revolving.

Before starting the chipper check the infeed hous-ing to ensure it is clear of foreign objects such aswrenches etc. and the exhaust chute and dis-charge bonnet are directed away from personnel.Violent discharge through the exhaust chute canoccur, with resultant blade damage and/or injury topersonnel.

The chipper should not be operated when attachedto or in contact with an aerial lift which is beingutilized. An electrical shock hazard exists when thelift comes into contact with energized electricallines.

WARNING

SECTION IIOPERATION

2-6

WhisperDisc ®

FEEDING BRUSH TO THE CHIPPER

FIGURE 2-2

SECTION IIOPERATION

2-7

WhisperDisc ®

FEEDING BRUSH TO THE CHIPPER

Proper brush feeding technique involves placing thebrush in the feed housing, pushing it into the feedrollers, and moving quickly to the curb side of thechipper- all in one continuous motion (see Figure 2-2).The following procedures should be followed:

1. Ensure the brush has been properly prepared (SeeBrush Preparation).

2. Carry the brush butt-end first toward the infeedhousing, approaching the chipper on an angle to theline of cutting action from the curbside, to avoidtraffic hazards and whipping brush (see Figure 2-2)

3. Lay the brush in the infeed housing, butt end towardthe feed rollers. Push the brush until the feed rollersgrab the brush. Release the brush immediately andcontinue moving as shown by Figure 2-2. Whengrabbed by the feed rollers, the brush has a ten-dency to whip away from the curbside. Do not waitto see if the feed rollers have grabbed the brush.The sound of the chipper will confirm proper opera-tion. Even with ear protectors in place, the sound ofa chipper chipping in unmistakable.

Never feed brush from the roadside of the chipper.Brush will whip toward the road side. Whippingbrush can cause bodily injury or knock you offbalance. Brush can possibly drag you into the feedrollers. Injury can be serious or fatal.

4. If feeding a large diameter branch, feed a smallbranch first to open the feed rollers and then feedthe large branch, while the smaller branch is feed-ing. This avoids the need to push on large diameterbranches to have the feed roller grab the largebranch from a fully closed position. An optional feedwheel lift will raise the feed wheels hydraulically,enabling a large size branch to be fed without firstfeeding a smaller branch.

5. If feeding short pieces of brush, lay them on top ofa larger branch or if short pieces are laying in theinfeed housing, start a larger branch which will dragthe shorter pieces into the feed rollers.

Do not hand feed short pieces. If your hand iscaught by the feed rollers serious or fatal injurycan result.

WARNING

WARNING

FIGURE 2-3

6. If the engine slows down while chipping large diam-eter branches, stop the feed wheels by pushing thecontrol bar to neutral, until the engine recoversspeed. The discharge chute can become pluggedwith chips at low engine speed.

7. The extension springs on both sides of the infeedhousing set the tension between the upper andlower infeed rollers. If feed rollers are slipping, or notfeeding the branches, increase tension on thesetwo springs. As a general rule, small limbs requiregreater tension. When chipping all large branchesthis tension can be reduced. Do not tighten thesesprings more than is required to obtain satisfactoryfeeding.

8. The bottom of the infeed housing contains a hingeddoor for removal of chips which accumulate in theinfeed housing. This compartment should be emp-tied daily or more frequently if it becomes full duringoperation. For efficient automatic operation openthe door and place the pin back into it's retainingholes. This leaves the door approximately 3/8" openwhich facilities compartment clean out.

9. The following are some basic operating precautionsthat should be adhered to:

WARNING Do not use any tool with metal components, suchas a rake or pruning pole, to push the brush. Metalcomponents fed into the chipper damage knives.Violent discharge through the chute can result.

SECTION IIOPERATION

2-8

WhisperDisc ®

OPERATION AND SAFETY DECALS

WARNINGKeep the working area clear of limbs on the groundwhich could trip or entangle the operator. En-tangled operator could be dragged into the infeedhousing by brush being fed. Serious injury ordeath could result.

WARNINGDo not throw cleanup sweepings that containforeign materials, e.g., wires, stones, nails, etc.into the chipper. Knife damage and violent dis-charge can result.

WARNING Do not feed the brush by standing in one spot andthrowing it toward the infeed housing; operatormovement with the brush minimizes the impact ofmoving brush.

WARNINGKeep hands and arms out of the feed hopper. Lossof limb can result.

WARNINGDo not lean or permit others to lean or stand on theinfeed housing. Loss of balance can result in seri-ous injury or death.

MOVING PARTS WILL CAUSESERIOUS CRUSHING INJURIES.

KEEP HANDS CLEAR.

DANGER

870060608

• MOVING PARTS WILL CAUSE SERIOUS CUTTING OR CRUSHING INJURIES.

• DO NOT PERFORM ANY MAINTENANCE UNLESS THE ENGINE AND CUTTER WHEEL HAVE STOPPED, THE KEY HAS BEEN REMOVED AND THE DISC STOP PIN HAS BEEN INSERTED.

DANGER

870060607

MOVING PARTS WILL CAUSESERIOUS CUTTING INJURIES.

DO NOT OPEN OR CLOSE CHIPPERHOOD WHEN ENGINE OR CUTTERWHEEL IS OPERATING.

DANGER

870060611

ELECTROCUTION HAZARD

DEATH OR SERIOUS INJURY WILLRESULT FROM CONTACT WITH THISEQUIPMENT IF IT SHOULD BECOMEELECTRICALLY CHARGED.

CHIPPER MAY BECOME ENERGIZEDIF CONNECTED TO AERIAL LIFTTRUCK WITH BOOMS ELEVATEDNEAR ELECTRICAL LINES.

DANGER

870060610

SECTION IIOPERATION

2-9

WhisperDisc ®

E M E R G E N C Y

PUSH TO REVERSE

FEED ROLLERS 870060613

DANGERMOVING PARTS WILL CAUSESERIOUS CRUSHING ORCUTTING INJURIES.

KEEP HANDS AND FEET AWAYFROM THE HOPPER AND FEEDROLLERS WHEN ENGINE ANDCHIPPER IS OPERATING.

870060614

AN UNTRAINED OPERATOR SUBJECTSONESELF AND OTHERS TO

DEATH OR SERIOUS INJURYYOU MUST NOT OPERATE THIS

MACHINE UNLESS:

• YOU HAVE BEEN TRAINED IN THE SAFE OPERATION OF THIS MACHINE.

• YOU READ UNDERSTAND AND FOLLOW THE SAFETY AND OPERATING RECOMMENDATIONS ON THIS MACHINE AND IN THE MANUFACTURER'S MANUALS, YOUR EMPLOYER'S WORK RULES AND APPLICABLE GOVERNMENT REGULATIONS.

• YOU ARE SURE THIS MACHINE IS OPERATING PROPERLY AND HAS BEEN INSPECTED AND MAINTAINED IN ACCORDANCE WITH THE PRACTICES LISTED IN THE MANUFACTURER'S MANUAL.

• ALL SAFETY FEATURES AND GUARDS ARE IN PLACE AND FUNCTIONAL.

REFER TO THE OPERATOR'S MANUAL FOR COMPLETE INSTRUCTIONS. IF THE MANUAL IS MISSING, CONTACT THE MANUFACTURER FOR REPLACEMENT.

DANGER

870060609

DANGERSUDDEN WHIPPING OF WOOD CANCAUSE OBJECTS TO BE THROWN FROMCHIPPER CAUSING SERIOUS INJURY.

DO NOT FEED CHIPPER FROMCENTER OF FEED TABLE. STANDTO RIGHT OF CENTER AND FOLLOWPATH SHOWN.

STAY CLEAR OF LEFT SIDE OFFEED TABLE.

870060612

DANGERZONE

DO NOT STANDIN THIS AREA

PATH TO FOLLOWWHEN FEEDING

SAFETYINSTRUCTIONS

870060606

• DO NOT OPERATE UNLESS ALL PERSONS ARECLEAR OF THE EXHAUST CHUTE.

• WEAR EYE AND HEARING PROTECTION WHENFEEDING OR WORKING NEAR CHIPPER.

• DO NOT WEAR GAUNTLET GLOVES OR LOOSECLOTHING WHEN FEEDING OR WORKING NEARCHIPPER.

• DO NOT FEED SHORT PIECES INTO ROLLERS BYHAND OR THROW SWEEPINGS OR FOREIGNMATERIALS INTO CHIPPER.

• DO NOT SIT, STAND, KNEEL OR LEAN ON FEEDTABLE WHEN CHIPPER IS RUNNING.

• DO NOT OPERATE UNLESS BELT GUARD OROTHER SAFETY FEATURES ARE IN PLACE ANDOPERATIONAL.

• DO NOT REACH INTO FEED CHUTE FOR ANYREASON WHEN CHIPPERIS RUNNING.

SECTION IIOPERATION

2-10

WhisperDisc ®

These decals are used when the articulating drawbar option is installed

DANGERFIRE HAZARD - DEATH OR SERIOUS INJURYCAN RESULT FROM A FIRE STARTING UNDERTHE CHIPPER FROM THE ENGINE EXHAUST.

CLEAR THE GROUND DIRECTLY BENEATH ANDAROUND THE CHIPPER OF FLAMMABLEMATERIALS.

HOT SPARKS FROM THE CHIPPER'S ENGINEEXHAUST ARE CAPABLE OF STARTING FIRES.

870060647

ALWAYS ENGAGE THE CLUTCH AT APPROX.1000 ENGINE RPM.

TO ENGAGE THE CLUTCH PUSH THE CLUTCHLEVER TOWARD THE ENGINE UNTIL THE LEVERLOCKS IN THE UPRIGHT POSITION.

TO DISENGAGE THE CLUTCH PULL THE CLUTCHLEVER AWAY FROM THE ENGINE.

CAUTION

870060648

NOTICEOPERATION OF ROTATING FRAME-ENGINE MUST BE RUNNING AND CLUTCH ENGAGED

1. REMOVE PIN AT FRONT DRAWBAR FRAME CONNECTION2. ROTATE FRAME AWAY FROM THE DRAWBAR. THE FRAME WILL STOP AT THE 45° POSITION.3. INSERT THE LOCKNUT PIN TO LOCK THE FRAME AND DRAWBAR TOGETHER.

ROTATING FRAME MUST BE RESET FOR TOWING.

EQUIPMENT AND PROPERTY DAMAGE WILL OCCUR IF CHIPPER IS TOWED INROTATED POSITION.

4. TO RESET THE CHIPPER FOR TOWING, REMOVE THE PIN. ROTATE THE FRAME UNTIL IT STOPS IN THE NORMAL POSITION, INSERT PIN AND SECURE FOR TRAVEL. 870060678

DANGERMOTION OF THE FRAME CAUSES A SHEARINGACTION WITH THE DRAWBAR WHICH WILL RESULTIN DEATH OR SERIOUS INJURY.

DO NOT STAND OR PLACE ANY BODY PART INSIDEOF THE FRAME WHEN ROTATING THE FRAME.

KEEP ALL PERSONNEL CLEAR WHEN ROTATINGFRAME.

DO NOT ATTEMPT TO FEED MATERIAL WHILE RO-TATING FRAME.

WARNING

DEATH OR SERIOUS INJURYCOULD RESULT FROM FALLINGWHEN VEHICLE IS IN MOTIONALL RIDERS MUST BE IN CABWITH SAFETY BELTS FASTENED

NO RIDER670-40294

WARNING

DEATH OR SERIOUS INJURYCOULD RESULT FROM SLIPS

AND FALLSDO NOT USE THIS AREA

AS A STEP

NO STEP670-01123

870060677

SECTION IIOPERATION

2-11

WhisperDisc ®

These decals are used when the powered feed wheel lift option is installed

THIS CHIPPER IS EQUIPPED WITH A POWERED FEED WHEEL LIFT FOR FEEDING LARGE DIAMETER MATERIAL.

FOREIGN MATERIAL KICKED BACK BY ROTATING DISC WHEN Feedwheel IS ELEVATED WILL CAUSE DEATH OR SERIOUS INJURY.

WHENEVER ENGINE IS RUNNING WITH CLUTCH ENGAGEDAND Feed wheel ELEVATED:

1. USE PRESCRIBED FEEDING PRACTICES.2. KEEP YOUR HANDS AND FEET OUT OF THE HOPPER.3. DO NOT ATTEMPT ANY ADJUSTMENTS TO THE CHIPPER.

870060679

DANGERNOTICETO OPERATE Feed wheel LIFT

1. USING THE Feed wheel CONTROL LEVERPUSH TO RAISE Feed wheel.

2. INSERT MATERIAL UNTIL IT ENGAGESTHE Feed wheels.

3. RELEASE OF THE CONTROL LEVER WILLALLOW Feed wheel TO RETURN TONORMAL OPERATING POSITION.

REFER TO MANUAL FOR PROPER LOCKOUT PROCEDURE WHEN DOINGMAINTENANCE. 870060680

SECTION IIILUBRICATION

3-1

WhisperDisc ®

LUBRICATION POINTS

WARNING - Before lubricating or inspecting any part of the chipper the engine must be shut down withthe ignition key removed and the chipper secured.

1. ENGINE.Follow original equipment manufacturers requirements for both changing oils and filters.

2. PTOFollow original equipment manufacturers requirements for both greasing and changing oils.(Grease fitting is partially concealed by the belt guard).

3. HYDRAULIC RESERVOIRCompletely change fluid and flush tank annuallyChange hydraulic fluid filter every 400 hours or 3 months.Check hydraulic fluid level in tank daily.Clean mesh screen in bottom of tank annually.

4. CHIPPER BEARINGS.Monthly, lubricate with EP-2 lithium-base grease.

5. FEED WHEEL BEARINGSWeekly, lubricate with one shot of EP-2 lithium-bas grease on each of the (4) bearings.DO NOT OVER GREASE !! Over greasing will rupture the seals and bearings may burn out.

6. TRAILERRepack the trailer wheel bearing annually with multi-purpose wheel bearing grease. Grease the spring shacklebushings with chassis lube, if the springs contain grease fittings.

7. UPPER FEED WHEEL HOUSINGWeekly lubricate with EP-2 lithium based grease. There are 4 Alemite grease fittings, 2 on each side.

8. UPPER FEED WHEEL SLIDE BEARINGSWeekly, Rub on EP-2 lithium grease

9. JACKSTANDMonthly, Rub on EP-2 lithium grease.

10. HINGED HOOD PIN. Monthly, Rub on EP-2 lithium grease.

11. HINGE OF HINGED HOOD Monthly, Rub on EP-2 lithium grease.

12. CONTROL BAR LINKAGE Monthly, Rub on EP-2 lithium grease.


3-2

WhisperDisc ®

5

6

12

11

LUBRICATION POINTS

5

3

10

7

8

6

9

1

26

4

5


3-3

WhisperDisc ®

APPROVED HYDRAULIC FLUID TYPES(anti-wear hydraulic fluids)

BRAND NAME SUMMER WINTERSun Sun Tac 202W Sun Tac 152 WR

Cities Service AW Hyd.30 AW HYD. 20Pacemaker XD-30 Pacemaker XD-20

Shell Tellus 68 (33) Tellus 46 (29)

Exxon Nuto H68 (54) Nuto H46 (48)

Ashland Valvoline AW-30 AW-20

Gulf Oil Security 54 AW HARMONY 46 AWHarmony 68 AW (54 AW) 48 AW

BP Oil Corp. Energol HLP-C68 Energol HLP-C46

Texaco Rando HD 68 Rando HD 46(HDC) (HDB)

Atlantic Richfield Duro AWS 315 Duron AWS 215

Mobil DTE 26 DTE 25

American Oil & Supply PO 150 VG 68 PO Lube C-103

SECTION IVMAINTENANCE

4-1

WhisperDisc ®

INSPECTION OF FASTENERS

Fasteners should be inspected weekly until thirty daysof operation and monthly thereafter. They must at alltimes be in place and secure. Torque values are givenwhere applicable. Otherwise see ”RecommendedTorque for Bolts.” If threaded fasteners are loose,apply Loctite Grade 242 to threads and tighten to therecommended torque.

Refer to the “Parts Catalog” page 6-2 “Infeed”. Thefasteners to check are:

1. The set screw, Item 15, and lock nut, Item 25 whichconnect the motor to the coupler. Shoulder bolt,Item 27, and locknut, Item 34, which secure thecoupler to the feed roller shaft.

2. The hex head cap screws, Item 14, which secure theflanged bearings.

3. The hex head cap screws, Item 28, which bolt thetorque plate to the hydraulic motor.

4. The set screws in each of the bearing collars.

5. The jam nuts, Item 20, which adjust the load on thefeed roller spring. The jam nuts must be tight tomaintain spring load. With the feed rollers in con-tact, spring should be extended until there is ap-proximately 1/32 inch space between coils.

6. The hydraulic hoses connected to the hydraulicmotors.

Refer to page 6-11 “Engine Installation”.

1. The engine mounting bolts, Items 3 and 15.

2. The engine adjustment bolts, Item 6, and jam nuts,Item 7.

3. The sheave bushing locking bolts, Item 17.

WARNING

Never work on the chipper unless the ignition isreliably disconnected. If the key is accidentally lefton, or the ignition switch is faulty and the clutch isengaged, rotation of the chipper disc can handcrank and start the engine. If maintenance needsto be performed any part of the disc disconnect thecoil wire.

WARNING

Never depend on a disengaged clutch to prevent arotating engine from driving the chipper. Failure ofeither the pilot or throw-out bearings of the clutchcan cause seizure of the output shaft and theengine will drive the chipper.

DAILY INSPECTION

A preliminary check of the chipper should be made thefirst thing each morning before leaving the parking lot.The essential steps are:

1. Inspect the hitch connectiona. Hitch is properly connected to the towing vehicle.b. Safety chains are in place crossed to form an “X”

under the drawbar, and attached to the towingvehicle. Slack in safety chain should be sufficient topermit turning, but not drag on ground.

c. Tail lights are connected and operating.d. Ensure the Breakaway switch is connected.

2. Check the Enginea. Fuel in tank.b. Engine oil level.c. Radiator coolant/anti-freeze

3. Examine the trailer.a. Tire pressure.

4. Disc knife and anvil.a. Ensure knife and anvil bolts are in place.b. Examine knife and anvil for nicks and dull edges. See

Section “Knife Maintenance” if dull.

5. Hydraulic Systema. Check hydraulic oil level.b. Check for any leaks.


4-2

WhisperDisc ®

INSPECTION OF FASTENERS(CONT.)

Refer to page 6-4 “Chlpper and Power Train”.

1. The hex head cap screws, Item 33, which mount thefront bearing. (Torque to 127 Ft. Lbs.)

2. The hex head cap screw, Item 12, which fastens thefront bearing and disc shaft.

3. The hex head cap screws, Item 18, which securedisc and disc shaft. (Torque to 252 Ft. Lbs.)

4. The hex head cap screws, Item 33, which mount therear bearing. (Torque to 127 Ft. Lbs.)

5. The knife mounting bolts, Item 24. (Torque to 53 Ft.Lbs.)

6. The anvil adjustment bolts, Item 36, and jam nuts,Item 64.

7. The anvil mounting bolts, Item 37. (Torque to 79 Ft.Lbs.)

8. The hex head cap screws which lock the sheavebushing, Item 22, to the disc shaft.

9. The hex head cap screws which lock the sheavebushing, Item 57, to the hydraulic motor shaft.

10. The hex head cap screws, Item 47, which fastenthe hood to the disc housing .

11. The belt cover fasteners, Items 52 and 63.

Refer to page 6-7 “Trailer”.

1. The hex head cap screws which fasten the towingeye, Item 3 to the trailer.

2. The wheel lug bolts.

3. The spring shackle bolts.

4. The safety chain, Item 4 and slip hook, Item 5.

5. The chain and pin assembly, Item 2, of the jack stand

KNIVES AND ANVIL

A chipper with dull knives, a worn anvil or excessiveclearance between knives and anvil will not chip effi-ciently. The engine speed will be reduced excessivelywhen chipping and chips produced will be big andstringy. Condition of knives and anvil should be in-spected daily before operation. Under heavy use, 6 to8 hrs. per day, knives should retain a cutting edge forapproximately two to three weeks, depending on ma-terial chipped.

INSPECTION OF KNIVES AND ANVIL

1. Remove the ignition key, disconnect the coil wire ongasoline engines and on diesel engines removepositive battery cable, on both type engines disen-gage the clutch.

WARNING

Never work on the chipper unless the ignition isreliably disconnected. If the key is accidentally lefton, or the ignition switch is faulty and the clutch isengaged, rotation of the chipper disc can handcrank and start the engine.

WARNING

Never depend on a disengaged clutch to prevent arotating engine from driving the chipper. Failure ofeither the pilot or throw-out bearings of the clutchcan cause seizure of the output shaft and theengine will drive the chipper.

2. Remove the hair pin clip and hood pin. Open thehinged disc hood of the disc housing.

3. Rotate the disc to expose one set of knives at the topof the disc hood opening.

4. Insert the hood pin into the locking tube under thehinge of the hinged disc hood, See Figure 4-1.Insertion of the hood pin into the locking tube, limitsrotation of the disc to 60° by blocking the path of thefan blades attached to the disc.

5. Examine the knives for nicks, cracks, and dull edges.A disc with burnt wood fiber on its surface is anindication of dull blades. The cutting edge of theknife should look like a steak knife, an edge as dull


4-3

WhisperDisc ®

FIGURE 4-1

as a butter knife is too dull for disc chipper operation.Confirm fasteners are in place and tight.

6. Remove the hood pin from the locking tube, rotatethe disc to expose the second set of knives, replacethe hood pin in the locking tube and examine thesecond set of knives.

Condition of knives is an indication of anvil condition. Aclose examination of the anvil is not practical withoutremoval and resultant loss or increase of gap setting.View of the anvil in a dark area through the hinged dischood opening with the aid of a flashlight or other lightsource is adequate for visual inspection. The requiredgap of .032 to .062 in. can be checked visually orconfirmed with a shim equipped with a long extension.If knives require changing proceed as follows:

edge exposed. If both edges have been used re-place the blades with resharpened or new blades.New mounting hardware should be used with newblades. In order to achieve uniform chipping andbalanced operation, only blades which match eachother dimensionally, from the cutting edge to thecenterline of bolts, should be installed.

3. Replace blades with sharp edge exposed. Ensurethe hardened steel washer is under the self-lockingnut and tighten the flat head socket screws to 53 ft.Ibs. See Figure 4-2

4. When installing new blades, refer to “To Adjust Knife/Anvil Gap”.

WARNING

Failure to clean the knife and knife pocket thor-oughly can prevent proper seating of knife in thepocket. Gap setting will be difficult to obtain andknives can become loose in operation. A looseknife can result in violent discharge through thedischarge chute. Death, serious personnel injuryand/or equipment damage can result.

ANVIL REMOVAL

1. Remove the three (3) hex head cap screws, squarewasher and hardened washer which retain the anviland the two (2) square head bolts, with associatedwashers and hex nuts used to adjust knife/anvilgap. Remove the anvil and inspect for condition. Ifthe cutting edge is not square and straight or theanvil contains cracks, replace with a new or regroundanvil.

TO CHANGE KNIVES

1. With "Inspection of Knives” complete. Remove theexposed knives from the disc with a 5/16 in. hex anda 3/4 in. deep socket. Be careful when removing theknives, rotation on the cutter side can cut hand.

2. Thoroughly clean the knives, the knife pocket andthe counter bore for the nuts. If cleaning revealscracks in the blade, it should be scrapped. Knivesare double edged. If the blade is sharp on theunused side, reinstall the blades with the sharp

KNIFE

FLAT HEADSOCKET SCREW

FIGURE 4-2

DISC

SELF-LOCKINGNUT

HARDENED STEELWASHER

LOCKING TUBE


4-4

WhisperDisc ®

TO SHARPEN KNIVES

1. Knives may be resharpened repeatedly until thecenter line of the bolt to the knife edge is no less than1 3/4 in.

2. Knives which require sharpening are to be groundin sets. To ensure uniform knife to anvil gap andbalanced operation all four blades must be groundto the same dimensions. Blades are to be ground ona 40° or 32° angle, See Figure 4-3. The 40° anglewill give the blade a longer edge life. Although the32° will cause the blades to dull sooner it willproduce a more aggressive cutting action. Depend-ing on the material and chipping conditions the 32°angle may be more suitable. Whichever angle isused, all blades must be ground to the same de-gree.

FIGURE 4-3

CAUTIONDo not grind the knives in a direction which pro-duces a radius, or hollow grind, on the surface ofthe blade. Strength and life of the cutting edge isreduced.

RULER OR STRAIGHT EDGE

ANVIL

TOP OF ANVIL

90°

2 1/4" NEW

1 3/4" MINANVIL

ANVIL

90°

1 3/4" MIN

2 1/4" NEW

52°

Square Edge

Angled Edge

2. The anvil has to have a good working edge toperform efficiently. To measure the straightness ofthe anvil place a straight edge on it as shown below.If there are any gaps more than 1/16" between thestraight edge and the anvil the anvil needs to be re-ground or machined.

FIGURE 4-4

TO SHARPEN ANVIL

1. The anvil may be re-ground or machined , to producea straight edge and correct angle, repeatedly untilthe dimension from the cutting edge to the centerlineof the retaining bolts is 13/4 in. minimum. Thisdimension is 2 1/4 in. on a new anvil. The anvil onyour unit can have either a square or angled edged,See Figure 4-4.

1 3/4" MIN

2" NEW 2" NEW

1 3/4" MIN

40° or 32° 40° or 32°


4-5

WhisperDisc ®

OPERATION CHECK

1. Confirm all blade and anvil bolts are torqued.

2. Rotate the disc one full revolution by hand to confirmoperational clearance.

3. Close the hinged hood and replace the hood pin andhair pin clip.

4. Start up the chipper as described under “Start Upand Shut Down of Chipper”.

5. When the engine is up to full throttle feed brush andobserve performance. The unit should chip thematerial with ease and the chips should be a uni-form size, free of long stringy chips.

TO ADJUST KNIFE ANDANVIL GAP

1. The knife/anvil gap is adjusted by loosening thethree hex head cap screws which secure the anvilto the transition, then hold the square head adjust-ment screw stationary and jack the anvil in or outwith the hex nuts on either face of the anvil supportstructure. Gap is to be adjusted uniformly between,.032 in. to .062 in. over the full width of the knife andanvil. The knife passes the anvil like scissors blades,the disc must be rotated to measure knife/anvil gapover the full width of the knife and anvil. Refer toFigure below.

2. A long hack saw blade, or blade with an extension,held by an assistant between blade and anvil throughthe hinged disk hood opening makes a good shimfor gap adjustment.

3. Check the clearance on both knives. Set the knife/anvil gap to the knife closest to the anvil.

4. When a uniform gap is attained over the full width ofboth blades, ensure all adjustment bolt locknuts aretight and torque the three (3) hex head cap screws,which retain the anvil, to 79 ft lb.

DISC

ADJUSTMENTSCREW

HEX NUTS

ANVIL

KNIFEGAP


4-6

WhisperDisc ®

DRIVE BELT ADJUSTMENT

The drive belt system consist of four “V” belts whichtransmit power from the engine to the chipper disc anda single "V” belt from the chipper disc to drive thehydraulic pump. A slipping belt generates heat andnoise and causes abnormal belt and sheave wear.When worn, belts should be replaced. If belts are overtightened, excessive side loads can damage the en-gine power take off, overload the disc shaft bearings,and/or damage the hydraulic pump bearings.

INSPECTION OF "V" BELTS

1. Shut down the engine

2. Remove the belt guard.

3. Examine the belts for wear, fraying and cracks. A “V"belt drives on the tapered sides of the belt. If thebelts are riding on the bottom of the sheave groove,they must be replaced. See Figure 4-5.

4. Apply a 20 to 25 Ib. Ioad on the belt midway betweenthe sheaves and measure the belt defection at thecenter, using the adjacent belt as a reference point.For the single belt pump drive, place a straight edgeor tight string on the top of the belt as a referencepoint. Belt deflection should be 1/2 inch, for theengine drive belts and 1/4 inch for the hydraulic pumpbelt.

BELTSSPACE BELTS REDUCED

SPACE

BELTS

FIGURE 4-5

WORN BELTGOOD BELT

WORN SHEAVE


4-7

WhisperDisc ®

WARNING

Excessive belt tension will damage PTO, hydraulicpump and disc shaft bearings. If belts do not drivewhen adjusted to recommended tension, replacethe belts.

5. Replace the belt guard.

6. If installing new “V” belts, recheck belt tension after2 hours of operation.

WARNING

Do not operate the chipper without the belt guardinstalled. Exposed moving belts can pinch fingers,clothing etc. between belt and sheave. Severepersonal injury can result.

ADJUSTMENT OF “V” BELTS

1. To adjust the engine drive belt tension refer to”Engine Installation” of the Parts Catalog. Loosenthe four (4) engine mounting bolts. Adjust the en-gine mount adjustment screws, both rear and frontof engine, equal amounts until proper belt tension isachieved. Pushing on the engine tightens the belts.When adjusting belt tension, ensure axial alignmentof sheaves is maintained. Misalignment will accel-erate wear of belts.

2. Retighten the jam nuts on all mount adjustmentscrews.

3. Torque the four (4) engine mounting bolts to 80 ft.Ibs.

4. To adjust the hydraulic pump belt, refer to ”Chipperand Power Train” of the Parts Catalog. Loosen thepump bracket mounting screws and slide the pumpbracket while tightening the mounting screws. Ad-just position until proper belt tension is obtained. Donot misalign sheaves when adjusting belt tension.


4-8

WhisperDisc ®

ENGINE RPM

The following are the proper operating speeds forvarious engines installed on the Whisper Disc Chipper.It is important to maintain engine rpm at the factorysetting. At low rpm, the torque developed by the

engine is to low. The engine may stall or the dischargechute may plug. Higher rpm can damage the engineand chipper.

ENGINE DESCRIPTION FULL THROTTLEOPERATING SPEED (RPM)

Ford 4.9 Litre (300 CID) Gasoline 6 CYL. 2800

John Deere JD4039T Diesel 4 CYL. 2500

Cummings 4B3.9T Diesel 4 CYL. 2500

Caterpillar 3054T Diesel 4 Cyl 2500

RECOMMENDED TORQUE FOR BOLTS Recommended torque for installation of hex headand socket head cap screws supplied by Altec forChippers is listed in the following table. SAE Grade 2hex head cap screws have a zinc oxide coating, SAEGrade 5 and Grade 8 hex head cap screws and sockethead cap screws are cadmium plated. The installationtorque shown is for conditions using bolts with thecoatings specified.

Torque specified for lubricated conditions isapplicable when threads and bearing surfaces arelubricated with a high stress lubricant such as Never-Seez Compound. Torque values recommended

produce 75 % of the torque required to reach the yieldstrength of the bolt. The values shown are to be usedfor installation unless specifications for installation arespecified.

In order to use the following chart, fasteners mustbe correctly identified by type or grade, size, andwhether plated or not. Failure to correctly identifya fastener can result in improper torquing leadingto bolt failure. When replacing fasteners it is veryimportant to use exact replacement of the fastenerbeing removed.

WARNING

SOCKET HEADCAP SCREWS

HEAD MARK

SIZE1/4-205/16-183/8-167/16-141/2-139/16-125/8-113/4-107/8-91-8

Lubricated LubricatedDry LubricatedDryDry

5101930456690160240360

71526426492127226364545

71323385683113200300450

36121827405597146219

5.5101930466791161244365

919335380116159282455682

1020365890123175313508758

81629467298140251406606

LubricatedDry

NoneThreeradial lines

Sixradial lines

RECOMMENDED TORQUE IN FOOT POUNDS

TYPE HEX HEAD CAP SCREWSSAE GRADE 2 5 8


4-9

WhisperDisc ®

TROUBLESHOOTING CHART

PROBLEM PROBABLE CAUSES AND SOLUTIONS

Chipper will not feedproperly 1. Chipper feed wheels are not turning properly. Check hydraulic pump and

motors.

2. Feed teeth are worn. Sharpen or replace.

3. Obstruction in infeed spout. If material lodges in the chipper, Remove the ignition Key and coil wire (on gasoline units), Disengage the Clutch (if applicable), and install the Disc Locking Pin. Raise the pivot arm to the fully opened position and block with a piece of wood. Next, wrap a safety chain around the pivot arm and discharge pipe. Carefully pull the material from the infeed. Release chain and pull out block. Resume operation.

Chipper will not 1. Replace dull knives.cut properly

2. Knives ground at incorrect angle. Grind knives at 40° (refer to Maintenance Section).

3. Knife/Anvil excessive gap. Adjust gap.

Chipper bearing 1. Lubricate or replace bearings.running too hot

2. Engine R.P.M. too high. See “Engine R.P.M”.

Feed wheels will not 1. Lubricate or replace bearings.turn or turn slowly

2. Hydraulic motor loose. Reposition motor shaft and retighten set screws and locknuts .

3. Hydraulic oil low. Refill.

4. Hydraulic pump worn. Repair or replace.

5. Control valve worn. Repair or replace.

6. Relief valve will not close. Clean and readjust relief valve.

7. Hydraulic hose or tubing pinched. Replace.

8. Hydraulic pump belts slipping or broken. Tighten or replace.

9. Hydraulic motor worn. Repair or replace.

10. Flow divider not functioning. Clean.

11. Both suction and return filters need cleaning or changing.

Top feed wheel 1. Wear pads dry or worn. Grease or replace.will not moveup and down 2. Brush in mechanism. Clean.

Feed wheel lacks 1. Adjust spring tension by adjusting bolt.down pressure


4-10

WhisperDisc ®

TROUBLESHOOTING CHART (cont.)

PROBLEM PROBABLE CAUSES AND SOLUTIONS

Hydraulic oil over- 1. Hydraulic oil low. Refill.heating causingsystem to slow down 2. Dirty hydraulic oil. Replace oil and change filters.

3. Improper oil viscosity.

4. Pinched hydraulic tubing or hose. Replace.

5. Feed wheel bearings are damaged. Replace.

6. Relief valve sticky or worn. Clean or replace.

7. Hydraulic pump worn. Repair or replace.

Only one feed wheel 1. The engine throttle is not wide open. The slower the hydraulic pump turns the lessturns gallons per minute it pumps. Therefore, the hydraulic oil goes through one section

of the flow divider instead of both of them. Open the engine throttle wide open.

2. Flow divider dirty. Clean or replace.

3. Hose or tubing pinched. Repair or replace.

4. Inoperative hydraulic motor. Repair or replace.

5. Internal leaking in the control valve allowing hydraulic oil to return to the tank. Replace valve.

6. Feed wheel bearings damaged. Replace bearings.

7. Feed wheel obstructed with brush. Clean.

Discharge chute 1. Obstruction in discharge chute. Remove obstruction. Patches welded on chute mayplugged cause obstruction. If so, replace chute.

2. Engine R.P.M. too low. Do not run engine below recommended R.P.M.

3. Intake vents plugged. Clear debris from vent.

Chipper disc wobbles 1. Draw ring loose. Torque to 250 ft. Ibs.

2. Front bearing flange bolts loose. Tighten flange bolts.

3. Chipper bearings worn. Replace.

Chipper disc 1. Check for obstruction in chipper housing.will not turn

2. Check for seized chipper bearings. Lubricate or replace.


4-11

WhisperDisc ®

TROUBLESHOOTING CHART (cont.)PROBLEM PROBABLE CAUSES AND SOLUTIONS

No Brakes 1. Open Circuits Find and Correct2. Severe Underadjustment Adjust Brakes as instructed in the Axle Manufacturer's

owners' manual3. Faulty Controller Test and Correct4. Short Circuits Find and Correct5. Broken Wire Find and Correct

Weak Brakes 1. Grease or Oil on Magnets or Linings Clean or Replace2. Corroded Connections Replace3. Worn Linings or Magnets Replace4. Scored or Grooved Brake Drums Machine or Replace5. Improper Synchronization Correct6. Underadjustment Adjust Brakes7. Glazed Linings Reburnish or Replace8. Overload Trailer Correct

Locking Brakes 1. Underadjustment Adjust2. Improper Sychronization Correct3. Faulty Controller Test and Correct4. Loose, Bent or Broken Brake Components Replace Components5. Out-of-Round Drums Machine or Replace6. Insufficient Wheel Load Adjust System Resistor and Synchronize

Intermittent Brakes 1. Faulty Controller Test and Correct2. Broken Wires Repair or Replace3. Loose Connections Find and Repair

Brakes Pull to one Side 1. Incorrect Adjustment Adjust2. Grease or Oil on Linings Clean or Replace3. Broken Wires Find and Repair4. Bad Connections Find and Repair

Harsh Brakes 1. Underadjustment Adjust2. Improper Synchronization Correct3. Improper Controller Change4. Faulty Controller Test and Correct

Noisy Brakes 1. Underadjustment Adjust2. Lack of Lubrication Lubricate3. Broken Brake Components Replace Components4. Incorrect Brake Components Correct

Surging Brakes 1. Grease or oil on Linings Clean or Replace2. Out-of-Round or Cracked Brake Drums Machine or Replace3. Faulty Controller Test and Correct

Dragging Brakes 1. Bent Spindle Replace Axle2. Loose Wheel Bearing Adjustment Adjust3. Faulty Breakaway Switch Repair or Replace4. Overadjustment Adjust


4-12

WhisperDisc ®

MAINTENANCE INTERVALSOPERATION DAILY WEEKLY MONTHLY BIMONTHLY YEARLY

Visual ExaminationDisc knives and anvil ...................... šTrailer hitch safety chain ................ šDraw bar for damage, cracks,wear, etc. ........................................................................................... šAll fasteners are tight ......................................................................... šDisc knives and anvilbolts tight ........................................ šFuel, oil and coolant leaks .............. šEngine oil level ............................... šRadiator coolant level ..................... šDrive belt tension...................................................... š

LubricationEngine .......................................... See .................... š ...................... š

EngineManual

Check engine oil level .................... šChange oil and filter .................................................................................................... šGrease pilot bearings .................................................................................................. šTrailer wheel bearings ........................................................................................................................... šGrease jackstand ........................................................................................................ šGrease spring shackle bushings(if unit is so equipped) ................................................................................................. šClutch ........................................... See

ClutchManual

MaintenanceTighten all fasteners .............................................................................................................................. šKnife and anvil .................................................. As requiredSharpen cutting edges ..................................... As requiredEngine .......................................... See

EngineManual

Radiator coolant/antifreeze ................................................................................................................... šTune engine .......................................................................................................................................... šReplace fuel filter ................................................................................................................................... šAir cleaner ................................................................ šCrankcase breather .................................................. šGovernor oil level ..................................................... šEngine oil and filter ............................................................................ šBattery water level .................................................... šDrive belts ......................................................................................... šTire pressure ..................................................................................... šTorque of wheel lug bolts .................................................................. š(90-95 ft. lbs.)Brake adjustment ..................................................... *Brake inspection/servicing ..................................................................................................................... š

WARNING - Shut down the engine and remove the ignition key before performing any maintenance. Except for engine check out,after tune-up, there is no need to incur the risk of working close to operating equipment, while performing maintenance operati ons.

*Brakes should be adjusted at the first 2,000 miles of operation then at 3,000 mile intervals.


4-13

WhisperDisc ®

LIGHTING AND BRAKES ELECTRICAL DIAGRAM

R

B

B

TM - BLACKB

BreakawaySwitch

Connect toTrailer Battery

+

_

ClearanceLight (Yellow)

L. Brake

R

W

WY

WW

Red Reflective /Clearance Lights

Left (Road) Side TailLight and Turn Signal

License Plate Light

Clearance Lights

Right (Curb) Side TailLight and Turn Signal

Red Reflective /Clearance Lights

BB

B BW

G

R

WR. Brake

BW

ClearanceLight (Yellow)

B W

G Y

R

BROWN

WHIT

EGREEN

YELLOW

(ORG)

RED

S - Not UsedRT - GreenG

GD - WhiteW

LT - YellowY

W

A - REDR


4-14

WhisperDisc ®

MAIN HYDRAULIC SCHEMATIC

TOP ROLLER

BOTTOM ROLLER

FLOW DIVIDER

MANUAL CONTROL VALVESTRAINER

FILTER

TANK

INTERNAL RELIEFVALVE

PUMP

HYDRAULIC FEEDWHEEL LIFT

2500 PSI

50/50 FLOW REGULATOR

1.25GPM

B A

P T

3 2

AB

P T

1000 PSI

AA

B B1250 PSI


4-15

WhisperDisc ®

TOOL COUPLER INSTALLATION

HYDRAULIC ARTICULATING DRAWBAR

EXISTING HYDRAULICSYSTEM

B A

PT

B A

PT

1250PSI50/50

FLOW REGULATOR

2500 PSI

P T

B A

B A

TP

AA

BB

SECTION VOPTIONAL EQUIPMENT

5-1

WhisperDisc ®

BALL COUPLER TOWBARThe coupler provides coupling to a 2 5/16 inch ball on the towing vehicle. Replacing the 3 in. I.D. eyehitch supplied as standard.

FLASHING WARNING LIGHTSFlashing warning lights are normally wired through the chipper engine ignition switch. When theignition switch is turned on the lights will operate. The key cannot be moved from the ignition switchwhen in the on position, which ensures the lights are flashing when the engine is running. Unlessotherwise requested two (7) seven inch diameter, amber lights are provided mounted one on eachside of the feed hopper.

REMOTE ENGINE CUT-OFF SWITCHA toggle switch in series with engine ignition switch, is mounted curbside on the chipper feedhopper and provides the operator with a quickly accessible switch for chipper shut-down.

TOOL BOXA minimum of 5 in. x 9 in. x 21 in. steel, welded to a trailer frame with a hinged cover, hasp, andeye for lock. A separator is supplied for storage of tools and extra blades.

HUB CAPSTwo (2) each, with chrome finish. (Part number 972-1200-01).

FUEL GAUGEA mechanical, direct-reading fuel gauge can be supplied.

FLAG HOLDERSCan be welded to the curbside & roadside fenders.

HYDRAULIC FEEDLIFT INSTALLATIONA hydraulic cylinder lifts the feedwheel slide for easy access to the transition for removal ofblockages and the feeding of large diameter branches into the chipper. The cylinder is controlledby a 20 gpm hydraulic valve mounted on top of the hopper.

HYDRAULIC TOOL CONNECTIONSTwo (2) tool connectors (1 male, 1 female) can be mounted at the rear of the chipper. A mono-block type hydraulic valve with power beyond ensures the feed wheels are not turning when a toolis in use.

FOLDING FEED TABLEA welded, 12 gauge, sheet metal folding feed table is available. The feed table will fold and latchfor transport.

SURGE BRAKESThe "surge" or "push" of the trailer toward the tow vehicle automatically synchronizes the trailerbrakes with the tow vehicle brake. As the trailer pushes against the tow vehicle the actuatortelescopes together and applies the force to the master cylinder, supplying hydraulic pressure tothe brakes.

SECTION VOPTIONAL EQUIPMENT

5-2

WhisperDisc ®

ARTICULATING DRAWBAR

This hydraulically driven option enables the operator to move the chipper a maximum of 45° without using thetowing vehicle. The articulating drawbar can be used to maneuver the feed table end of the chipper away fromthe road to minimize safety risks associated with passing traffic.

OPERATIONThe drawbar is activated by use of an hydraulic cylinder, (See the parts section) attached to the trailer and thedrawbar itself. Before operation pull the hitch pin (Item 2) that couples the drawbar to the trailer frame. Next, theoperator should position himself at the hydraulic control valve (item 3). To start articulation push the control handletoward the chipper. The chipper will start to move. There is one propositioned angle location at 45°. Move thechipper to the desired angle. Once the pin holding tubes are aligned insert the drawbar lockout pin (item 4).

DANGER - Failure to place the drawbar lockout pin into the pin holding tubes before operation canresult in movement of the chipper during operation causing equipment damage and/or personnel injury.

To replace the chipper to it's towing position:1. Remove the drawbar lockout pin.2. Pull the control handle of the hydraulic valve toward you.3. Replace the hitch pin.

MAINTENANCECheck all hydraulic components monthly for leaks and overall serviceability. If the chipper is to be used in a severeconditions (i.e. logging trails, powerlines) the components should be checked daily.

HYDRAULIC FEEDWHEEL LIFT

A hydraulic cylinder lifts the feedwheel slide for easy access to the transition for removal of blockages and thefeeding of large diameter branches into the chipper. The cylinder is controlled by a 20 gpm hydraulic valvemounted on top of the hopper.

OPERATIONUsing the feedwheel control lever, push to raise the feedwheel. Insert material until it engages the feed wheels.Release of the control lever will allow feedwheel to return to normal operating position.

MAINTENANCECheck all hydraulic components monthly for leaks and overall serviceability. If the chipper is to be used in a severeconditions (i.e. logging trails, powerlines) the components should be checked daily.

SECTION VIVENDOR LITERATURE

7-1

WhisperDisc ®

VENDOR LITERATURE

The following is a list of vendor supplied manuals for the Whisper Disc Chipper. Due to the number of variationsand the volume of the material, Engine manuals are supplied separate of this manual.

EQUIPMENT LITERATURE

ALTEC PART NUMBER COMPONENT DESCRIPTION

1. 879750642 Ford 4.9 Litre (300 CID) Ford - Parts & ServiceEngine Distributor Directory

Ford - Maintenance & Operator'sManual, I-6 Gasoline EnginesCSG-649

Ford - Parts List, CSG-649300 CID Gasoline Engine

Ford - Governors No. 194-205

2. 879750006 Ford 2.3 Litre (140 CID) Ford - Maintenance & Operator'sEngine Manual LSG-423 2.3 Litre

(140 CID) Pub. No. IEO 194-219

Ford - Parts List LSG-423 140 CIDGasoline Engine Pub. No.PPO-194-220A

3. Continental Diesel Power Parts Catalog and AssemblyUnit TMD-27 Manual Pub No. TT P10128(1-800-932-2858) Repair Manual & Operator Guide

Pub No. TT10099

4. Cummins Diesel Power Operators and MaintenanceUnit 4B3.9 Manual B Series Power Unit Bulletin(1-800-343-7357) No. 3810435

5. 879750633 (JD 4039T) John Deere 4039D Parts Catalog for 4039 & 4045 OEM 879750635 (JD 4039) (1-800-544-2722) Engines Pub. No. PC 2305

Operators Manual for 4039, 6059,4045 and 6068 Engines.Pub. No. OMRG 18293 Issue 1

6. 878170107 (98 FPM) Parker Hannifin Corp. Catalog No. 2600-300-1/NA 878170110 (122 FPM) H-Series Hydraulic Pump

(616)-694-9411

7. 879750634 Stien Pto Manufacturing(402) 463-8453

Whisper Disc M

Documents

Transcript of Whisper Disc M