Specac Hydraulic Press 15011 25011 Manual

7/27/2019 Specac Hydraulic Press 15011 25011 Manual

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SPECACMANUALLY OPERATEDHYDRAULIC PRESSESP/N, 15.O11 and 25.O11Instructions For Use

SPECACSpecac Limited, River House, Lagoon Road, St. Mary Cray, Orpington, Kent, BR5 3QX

England. Tel: 0689 873134 Fax: 0689 878527 Telex: 898188 SPECACA Cambridge Electronic Industries Company (~pl


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C O N TEN TSSection 1.

2.3 .4 .5 .6.7.8.9.

Packaging and InstallationOperation of PressMaintenance and Fault FindingDismantling and AssemblyPreparing Press for UseSpecificationsTools for MaintenanceParts List and DiagramsTest Certificate


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PACKAGING AND INSTALLATIONThese p resses leave the factory in a specially designed waterproof bo ard case w hich is sealedwith vinyl tape.To unpack, cut the tape, remove the top packings, (note that the top is indicated by arrow onthe side of the box), and the right hand side packing w hich is adjacent to the pum p block. Thepress can now be lifted clear from the case, USE A PIECE OF NYLON ROPE, PASSEDTHROUGH HOLES FOR THE VACUUM TUBING, AS A SLING - DO NOT LIFT BYH A N D LE.The press is supplied filled with hydraulic oil and ready for use. The only preparation req uiredis to remove the nyon vent screw 38 from the pump plate 37 of the pump unit. (Please referto diagram 3 at back of Manual).In certain circumstances it may be necessary to attach the press permanently to a laboratorybench, to enable this to be achieved two holes 0.4" diameter have been provided in the basecasting. It is recommended that 0.375" diameter bolts be used for this purpose and that thebench top sho uld be at least 1" thick.

2. OPERATION OF PRESSSee diagrams 2 and 32.1 Raise safety visor, place the work on the lower bolster 5, ensure that it is positionedin the centre of the bolster, lower safety visor.

Screw top bolster 23 onto work by means of handle 20.2.2 Rotate Release handle 30 clockw ise and tighten firmly.2.3 Pum p by mea ns of handle 32 until required load is indicated on Gaug e 3 1.2.4 WARNING

ENSURE THAT SAFETY VISOR IS DOWN BEFORE PUMPING.Do NOT pump beyond 15 ton mark on the 15.011 and 25 ton mark on the 25.011.When Red Ring around piston shows, STOP PUMPING.FAILURE to observe either of these warnings will result in damage to the pressmechanism.

2.5 To release load on work rotate release handle 30 anti-clockwise, about one turn.Lowe r bolster will then return to its original position.

2.6 PRES SUR E REL IEF VALVE, P/N 15.011, P/N 25.011Operating InstructionsThe pressure relief valve is situated immediately below the load indicating gauge,see diagram 2.The valve may be set so that any load between 0-15 tons or 0-25 tons is the maxi-mum load that can be obtained with that setting. To increase the force, rotate milledhead clockwise until the desired load is obtained.W hen the required maxim um load setting is obtained , the press is used in the normalway as described on the instruction panel fitted to the pum p block. Wh en the set loadis obtained, the relief valve will blow off so that further pumping will not increasethe load applied to the ram.To reduce pressure, rotate the milled head anti-clockwise and then open and closepressure relief handle then pump again until the reduced load is obtained.

1


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MAINTENANCE AND FAULT FINDINGWhenever there is a complete failure of the press operation it is recommended to contactSpecac immediately. Nevertheless it is appreciated that this may not always be possible ordesirable and in this event the following information is provided to enable a skilled mechanicto carry out the necessary repairs and adjustments.

FAULT3.1 LOSS OF PRESSURE

CAUSE1 Oil seals have failed and this will beevident by the excessive oil leakagearound piston, cylinder block orpump block.2 Non return Valve Leakin g

3 Release Valve Leaking

REMEDYIt may only be necessary to re-tightencylinder and pump securing screws 3 and29. If oil leak continues it will be neces-sary to renew seals 8, 9, 11, 28 ,4 4 or 45.The ball, 5 1, is not seating correctly duemost likely to foreign m atter adhering tothe seal or ball. By pumping the presswithout the pressure release screw tight-ened, foreign matter may be removedfrom the seating by oil washing throughthe system. Pump the press about tentimes if this does not work, then gaugeconnector 40 should be loosened and thegauge carefully removed. The connect-ing piece, 40 should then be removedfrom the pum p block taking care that thevalve spring, 50, is retained. Removespring, 50, and ball, 51 , examin e ball andif damaged replace with a new one, cleanball and seating and reassemble valveand gauge. If non return valve is stillleaking it will be necessary to reseat theball, this may be achieved by lightly tap-ping ball into its seating.As w ith the non return valve the ball, 59,may need cleaning or reseating, the pro-cedure for non return valve should berepeated.

3.2 FAILURE TO ACHIEVE PRESSURECAUSE

1 Non return Valve, 53 , LeakingREMEDY

Adopt a similar procedure as describedfor Non Return Valve behind gauge.


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CAUSE2 Airlock in Pump Assembly

3 Filter, 56, Blocked

R E M E D YPump must be bled of air, first slackenbleed screw, 41, then gently pump han-dle, 3 3 , expelling air from system. K eeppumping until all air is expelled, that iswhen a full flow of air free oil issuesaround screw, 41 . With pum p handle for-ward firmly tighten screw, 4 1 .After bleeding pum p it may be necessaryto bleed also the piston and cylinderassembly. For details of this proceduresee Section 5.Remove pump block, 26, by first remov-ing screws , 29, and lifting p um p clear ofbase plate 1. Do not damage gasket, 2 7 .Rem ove circlip, 57 , from oil pipe, 55 fil-ter, 56, can then be removed and cleanedby rinsing in an organic solvent such asacetone, petroleum ether or carbontetra-chloride and blowing with a compressedair line or bellows to remove stubbornadhered material.Reassemble and test.

3.3 PISTON DOES NOT RETURNCAUSE REMEDY

1 Foreign m atter has become lodged To correct both of these it will be neces-between piston and cylinder sary to remo ve piston and clean orreplace damaged parts.

2 Piston has been pump ed beyond thered ring causing damage to returnmechanismDISMANTLING AND ASSEMBLY4.1 PUM P BLOCKRem ove pu mp , 26 , from base 1 by first removing screws, 29, taking care not to dam-age gasket, 27.1 To remo ve pump piston, 43 , turn crank, 6 1, so that pin, 64, is horizontal. Gently

tap pin through into hole provided in pump block. The shaft, 62, may now betapped through the pump block bearing, 63, and out of the crank, 61. The crankcan then be removed from the piston, 43, and then the piston extracted from itsseal.2 The piston seals, 44 and 45 , are retained by seal housing, 46, which is secured tothe pump block by 4 screws. Rem ove these screws and carefully extract the hous-ing from the pump block, taking care not to damage the seals, 44 and 45. Afterexamining and cleaning the seals they may be replaced if not damaged, but if theslightest damage is evident new seals should be used. When replacing the sealstake care not to dam age them , ensure that the seal cavity and housing are scrupu-

lously clean and that the housing g asket, 47 , is in place and the screw s, 4 8, firmly


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3 To replace pum p piston assembly it is first necessary to remove pin , 64 , fromcrank, 6 1. Clean p iston, 43 , and insert into seal hou sing, then locate piston big endover crank pin, 6 5, so that crank hole is in line with pum p shaft bearing , 63 . Insertshaft, 62, into pump block and through the crank until hole for pin, 64, is in linewith hole in crank . Lightly tap pin, 64 , into crank un til its end is flush w ith crankface as shown in diagram 3. Section A.A.4 To thoroughly overhaul pump all componen ts shown in diagram 3 should beremoved from pum p block and examined and thoroughly cleaned. To ensure thatall cavities and oil ways are clear of foreign matter the block should be soaked inan organic solvent and then the oilways blown clear and dry with a compressedair line or bellows.Reassemble as described in paragraph 3 .

4 .2 PISTON AND CYLINDER1 Rem ove screws, 14 and 3, taking care not to lose copper sealing washer, 13 . Thepiston, 4, and its assembly can now be pushed out of cylinder block, 2. The topscrew, 2 1, may be used for this purpose.

2 If piston return mechanism is damaged it may be necessary to replace spring, 19,Spring housing, 12, or retaining stud, 16. The whole assembly will now comeapart. Examine components and if damaged replace with new components.3 To reassemble return mech anism first ensure that stud, 16, is firmly secu red in pis-ton, 4. Holdin g piston upside dow n clam p in a vice with protective jaws , place thespring housin g, 12, over the stud, 16. Th en replace the spring spacer, 15, followedby the spring, 19, and the spring washer, 18. Replace nut, 17, and tighten downuntil the washer, 18, is firmly clam ping the spring spac er, 15, in this cond ition thespring has the required tension to return piston.4 Exam ine ' O ' rings, 9, and replace if damaged or worn. Ensure that groove is cleanand free of foreign matter.5 Piston and Cylind er assembly is now ready to be assem bled with cylinder block,

2. Ensure that the piston is clean.6 Exam ine ' O ' rings, 8 and 11, and replace if damaged. Ensure that grooves andbore are clean.7 Push piston assembly into bore of cylinder block 2, taking care not to dam age ' O 'rings in the process, screw, 21, may be used for this purpose.8 Clean top of base 1 and secure spring housing , 12, to base by mea ns of screws,

14 , ensuring that the copper sealing wa shers, 13, are in good con dition, if notreplace with new ones, as a faulty washer may cause an oil leak. The screws, 14,must be tightened so as to distort the washer, 13, to form a pressure tight seal.9 Rotate cylinder block assem bly on piston until holes for screws, 3, are in line,replace screws and tighten securely using a socket wrench with a 15" lever.

4 .3 ASSEMBLY PUMP BLOCK TO BASE 11 Ens ure that base of pum p block, 26 , and the top of the base casting, 1, are thor-oughly clean. Pay special attention to the groove for ' O ' Ring, 28. Check that ' O 'Ring, 28, is in good condition and if damaged replace with a new one, and ensure

that the gasket, 27, is in place.


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2 Secure pu mp block to base casting, 1, by mean s of screws, 29, ensuring that thetwo com ponen ts are tightly secured so as to effect a pressure tight seal.

4.4 TOP BOLSTER ASSEMBLY1 If the top bolster, 23 , or the screw, 2 1 , becom e dam aged they may need to bereplaced. This is unlikely as these components are extremely robust.2 The top bolster, 23 , is held in the screw by an ' O ' Ring, 22, which allows it to bereplaced easily, such as when a heated top platen is used. The bolster just simplypulls free of the screw and the new o ne is pushed into its place.3 The screw, 21 , may b ecom e stiff to turn, this will either be due to the threadbecoming damaged or clogged with dirt. Remove the screw, clean and examine.If the thread is damaged it may be possible to remove the burrs by means of asmall file. If damage is extensive it will be best to replace w ith a new screw.4 W hen reassem bling screw, 21 , into top support ensure that threads are clean and

smeared w ith a light oil.5. PREPARING PRESS FOR USE

5.1 Rem ove pump plate, 37, and gasket, 39.5.2 Rem ove lower bolster, 5, and slacken bleed screws , 6 and 4 1 .5.3 The oil capacity of the press is about 1 pint (0.6 litre). Pour oil into 0.5 inch diame -ter hole in top of pump block until oil level can be seen about 2" below the top ofpump block.5.4 Prime pum p as described in Section 3 : 2-2 .5.5 Firmly tighten pressure release screw, 30 , and continue pum ping until oil begins toissue from b leed hole in top of piston. At first the oil will con tain air bubbles bu t con-tinue gently pumping until oil is free of air.5.6 Top up oil reservoir until oil level is again about 2" below top surface of pum p block.5.7 Pum p until piston rises to one inch above the cylinder block, at this height a red ringwill appear around piston.

DO NOT PUMP BEYOND THIS RED RING.5.8 Release valve, 30 , and piston will slowly return to its lowest position. After new 'O 'Rings ha ve been fitted the piston may b e a little sticky so it may be necessary to startthe piston return by m eans of the upper screw. Repeat this procedure a few times andit will be found that the piston w ill then return w ithout assistance.5.9 Re-bleed the who le system of air by repeating 5.4 and 5.5. Ensure that bleed screw s,6 and 41, are tight and secure.5.10 Replace pum p plate, 37 , and its gasket, 39 , if press is to be transported replace vent

screw, 38.


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6. SPECIFICATIONS

Maximum LoadStrokeScrew TravelMax. DaylightMin. DaylightLower Work-Face Dia.Upper Work-Face Dia.Distance between PlatesSide to SideFront to RearOil Capacity

P/N 15.01115 tons1 inch3.5 inches6 inches1.5 inches3.375 inches1.25 inches

5.300 inches5.563 inches1 pint

15.000 Kg2.54 cm89 mm152 mm38 mm86 mm32 mm

P/N 25.01125 tons1 inch3.5 inches6 inches1.5 inches3.375 inches1.25 inches

134.6 m m141.3 m m

25.000 Kg2.54 cm89 mm152 mm38 mm86 mm32 mm

6 litre Shell Type Tellus 37

7. TOOLS FOR MAINTENANCE1 Required1 Required1 Required1 Required2 Required1 Required1 Required1 Required1 Required

Socket WrenchSocket WrenchSocket WrenchSocket WrenchOpen End SpannerBox SpannerScrew DriverPin PunchHammer

0.375 A/F0.312 A/F0.187 A/F0.125 A/F0.718 A/F0.600 A/F0.218 dia.

9.5 mm7.9 mm4.8 mm3.2 mm18 mm15 m m5.5 mm

Specac supply a Press Tool Kit which contains all of the tools listed above except a hammer,the kit also contains 1 litre of Shell Type Tellus 37 hyd raulic oil. The hyd raulic oil can alsobe supplied as individual item from Specac.

NOTE: REF. ITEM 7 TOOLS FOR MAINTENA NCETHIS IS SUPPLIED AS PART OF 15.011 OR 25.011. IF REQUIRED PLEASE ORDER ASTOOL KIT FOR 15.011 OR 25.011IF OIL IS REQ UIRED PLEASE ORD ER A S P/N 15.101 (1 LITRE)


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PARTS LISTP/N 15.01115.011-1

234567891011121314

151617181915.011-202122232425262728293 031323334353 637383 915.011-404142

25.01125.011- 1234567891011121314151617181925 .011-202122232425262728293 031323334353 637383 925.011-404142

ItemBase C astingCylinder BlockCylinder Block ScrewPistonLower BolsterBleed ScrewBleed BallWiper Ring Piston' O ' Ring PistonUpright Bolt' O ' Ring Cylinder BlockSpring HousingCopper Sealing WasherSpring Housing ScrewSpring SpacerSpring StudSpring NutSpring WasherSpringScrew HandleScrew Top Bolster' O ' Ring Top BolsterTop BolsterOilway Plug SealOilway PlugPump BlockPump Block GasketPump Block 'O' RingPump Block ScrewPressure Release HandlePressure G augePump HandlePum p Handle GripUpright BoltUpright Bolt WasherUpright DowelPump PlatePump Vent ScrewPump Gasket UpperGauge ConnectorBleed Screw (15.006)Bleed Ball (15.007)


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ItemPump PistonPump Piston SealPump Piston 'O' RingPump Piston Sealing HousingPump Piston GasketPump Piston ScrewsGauge SealNon Return SpringNon Return Valve BallAs 50As 51Intake SealIntake PipeIntake FilterIntake CirclipRelease Screw 'O ' RingRelease BallCrank Pin CirclipCrankCrank ShaftCrank Shaft BushCrank Fixing PinCrank PinSafety VisorRelief Valve BodyRelief Valve SealRelief Valve PoppetRelief Valve Set KnobRelief Valve BallRelief Valve SpringRelief Valve Poppet 'O ' RingRelief Valve Seating

For those not wishing to strip down the Piston and Pum p Block A ssembly, Specac can supply thesetwo u nits, built and tested.

P / N 1 5 . 01 115.011-43

4445464748495051525354555657585960616263646566

15.011-6768697071727374

2 5 . 0 1 125.011-43

4445464748495051525354555657585960616263646566

25.011-6768697071727374

"DO NOT DISASSEMBLE RELIEF VALVE. IF THIS UNIT MALFUNCTIONS, RETURNCOMPLETE VALVE UNIT TO SPECAC FOR REPLACEMENT."15.10015.10125.100

SEAL KIT1 LITRE OF OILSEAL KIT

For 15.011

For 25.011


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3) 19 18(17 16 15 14 13 29 24

D I A G R A M 1


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P ura U RF RF I IFF VALVE ASFinEDTO 15011/25011

D I A G R A M 2


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D IA G R A M 3


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D E T A IL S O F P R E S S U R E R E L IE F V A L V E A S S Y .

7 2 6 7 7 4

D IA G R A M 4


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Specac Lim ited, River House, Lagoon Road,St. Mary Cray, Orpington, Kent, England. BR5 3QXTel: 0689 873134 Fax: 0689 878527 Telex: 898188 SPECAC

T E S T C E R T I F I C A T EHydraulic Press (Manual)

Product No.: 15.011 pT 25.011 Serial No.: /.&.~>/..Q.. Order No.:.

SPECAC

Item Check/Test Checked1. Visual inspe ction ofguard2. Visual inspection ofgauge nuts3 . Visual inspection ofHEX bolts4 . Condition ofpaint5. Correct function ofgauge6. Check foroil leaks7. Check piston release8. Press able toreach 15 tons/2ftfflw-9. Drop-back @ 15 tons /Sirtsn s= Less than 1ton in 15 minutes10. Pressure Relief Valve - se t to 10 tons - 15.011

1J4UIIJ " 2J.011

Tested by :FinalApprovalBy: ..C^//.f*( i^&Z?Z. Date

Original toFileCompleted TAG Label onPress

DRG . Nos .

Issue 1

3MZ130663MZ13067

Specac Hydraulic Press 15011 25011 Manual

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