133113925 GMK Schematic Handbook

GMK ISchematic Symbol Handbook

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GMKGMK Schematic Symbol Handbook

Grove Training InstituteSecond Edition

7 1 8 2 9

3 4 10

0 1

WW

300 bar

X56 2X2 6

P

+ -L

G WK

2K20 B1 A1

A2

85

86 87 87 b

30

K10

123

4

2

bl

W5 bar

S62

br

sw

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Introduction

The GMK schematic symbol handbook has been developed to equip a novice GMKtechnician with navigational skills necessary to use system schematics. The contentof the handbook is intended to increase a technicians general knowledge level ofGMK schematics. Schematic symbols emphasize the function and describe theoperation of components and their respective circuits. An overall system schematicwill show the entire machines circuitry on one, or in some cases, multiple pages. Atechnician armed with the ability to read schematics has the advantage of viewingthe machines complete hydraulic, electrical, or pneumatic circuits. When presentedwith a machine fault, he can systemically eliminate possible causes, thus arriving ata solution much quicker. It is important for a technician to have a fundamentalunderstanding of schematic symbols in order to be an effective troubleshooter .

This handbook was developed based on information from ISO 1219-1 InternationalStandard and system schematics from the GMK 5130 mobile hydraulic crane.

Questions about this handbook or related material may be directed to the GroveTraining Institute at:

Grove Worldwide HeadquartersGrove Training Institute1565 Buchanan Trail EastShady Grove, PA 17256

1-717-593-5316If you wish to contact us via Email, our address [email protected]

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GMK Schematic Symbol Handbook

Table of Contents

Introduction

Section 1 Hydraulic SymbolsPages 1-1 through 1-10

Section 2 Electrical SymbolsPages 2-1 through 2-13

Section 3 Pneumatic SymbolsPages 3-1 through 3-6

Section 4 Elan electrical schematicPages 4-1 through 4-15

Index

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Section 1Section 1

Hydraulic Symbols

This section contains a basic introduction to GMK hydraulic schematicsymbols. The information contained herein will provide a good foundation fora technician new to the GMK product line, or as a refresher for a veterantechnician. Each page is laid out with the symbol on the right side of the pageand the supporting text on the left side of the page. The supporting text willprovide a description of the symbol and in some cases theory of operation.

Note:This document is not intended to cover every symbol that a technicianmay encounter, however, it is intended to provide a starting point fromwhich to work.

GMK Hydraulic Symbols

DescriptionDescription SymbolSymbol

Dashed line- Pilot Control, internal orexternal

Continuous line - Pilot supply line,return line, or function supply

Chain line -Enclosure of two or more functions contained in one unit .

Double line - Mechanical connection, ( shaft, lever, piston rod) etc.

Flexible line - Hose, usually connecting moving parts

Line size - Identification for line sizechanges. Used to help locateconnection points on the machine.The figures provided represent theoutside diameter and the insidecross sectional area. The small lineabove the tie point represents a linesize change.

16X2

12

X1

.5

1-1

line size changeoutside diameter

Wall thickness



Gate valve - Return manifolds, reservoirs, etc.

Test port - Quick disconnect style testing point

M3

M3

Shuttle valve - The inlet port connected to the higher pressure is automatically connected to the outlet port, while the other port is closed. Used to direct maximumpressure to logic valves, or piston pump control, depending on the application.

W

3 bar1S21

Hydraulic pressure switch - Senseshydraulic pressure for the purpose ofenergizing electrical components, forexample relay coils, indicator lights etc.

Quick disconnect - Used in the circuits offrequently removed components, i.e. auxiliary hoist circuit lines.

1-2



Relief Valves - Limits maximumhydraulic pressure that can be applied toa specific circuit. Form 1 represents anormally closed valve which is shifted tothe open position with pilot pressurebeing applied from the valve inlet. Thepilot pressure acts against an adjustablespring which is represented by the springsymbol with the arrow through it. Whenthe pilot pressure reaches 40 bar, thevalve cartridge shifts and aligns thevalve inlet and outlet thus routing theexcess flow back to the reservoir.

Form 2 operates the same way however,it contains an additional pilot line whichis a drain for the spring area adjustmentpoint. In this case the maximumpressure is 300 bar. When the inletpressure reaches the maximum limit, thevalve spool is shifted via pilot pressureagainst the opposing adjustable springforce. This action will connect the inletand outlet of the valve spool thuspermitting the excessive oil flow to berouted to tank.

W

40 bar

W

60 bar

Pressure reducing valve - Reduces maximum hydraulic pressure that can be applied to a circuit or component. Thisvalve symbol is slightly different than the previous example. In this case the pilot line which shifts the valve is connected tothe outlet port. Additionally the valve symbol is shown in the normally open position. As a result, the valve will not shift to the closed position until the output reaches, 60bar. As the pilot line reaches the maximum limit, it shifts the spool against the adjustable spring force, shutting off the oil supply to thefunction.

1-3

Form 1

W

300 bar

Form 2



W

Electric solenoid - Electrically controlled hydraulic valve, used in the normally open or normally closed configuration. This example represents a normally open valve.The small rectangle with the diagonal linethrough it, represents a solenoid coil.When the coil is energized, it will shift the spool blocking oil flow through the valve.

W

Lock Valve - Pneumatically controlledhydraulic valve normally used in carrier suspension circuits. This symbol shows apilot line connected to a small rectangle thatcontains an arrow. Notice that the center ofthe arrow is not black, this is typically howpneumatically actuated components areshown.

X

Velocity fuse - Shifts to the closed positionwhen a pressure drop is sensed on the output side of the valve. This component is used to prevent loss of hydraulic oil flow in the in the event of a hose rupture in the lift circuit transducer lines.

XW

Flow switch - Provides ground to electricalcircuit for carrier steering system. Shown inits normal position, it will illuminate an indicator light, which tells the operator the system has a fault. When operating properly,hydraulic oil flow will enter the valve and at the same time a pilot line will shift the valvespool thus opening the switch contacts and turning off the steering indicator light. Thistells the operator the steering system is working properly.

1-4



Pilot Operated control valve - Used in a variety of forms, primarily in hoist, lift, and telescope circuits. This symbol shows a check valve in its normal position.As pilot pressure is applied, the valve spoolwill shift to permit oil to flow across therestriction port, which is used to control the speed of the respective function.

Electric over hydraulic control valve - Port X is the pilot pressure input, port Yis the drain, port A is the working port, port P is the input from the hydraulicpump, and port T is connected to the tank.The component serves as the lift controlvalve.

WWWW

TP

YX A

WW

3-Way electrically operated valve -Used to control oil flow to the logicpoppets. Thearrows within the valve symbol representthe direction of oil flow in and out of thelogic poppets.

WW

3-Way electrically operated valve withmanual override - Used to control oilflow to the hoist brake, and or, the hoistmotor control valve. The thin rectanglewith the cap is representing the manualover-ride portion of this valve.

WW

4-Way electrically operated valve - Used to direct oil flow within a variety of circuitson the carrier and superstructure. Similar tothe 3- way electrically operated valve,however it handles supply and return oilsimultaneously in each position.

1-5

W



WW

Y

WW

TP

X

A B

2-Way electric over hydraulicdirectional control valve - used tocontrol direction of oil flow. This 3-position, closed-center valve, is shiftedvia pilot pressure that is controlled by anelectric solenoid. The P port isconnected to the pump outlet, and the Tport is connected to reservoir. The Aand B ports are connected to anactuator. The X port is connected to apilot supply port and the Y port drains oilfrom the return spring area back to thereservoir.

Pilot operated directional control valve -Open-center, 3-position directional controlvalve used with circuits supplied by gearpumps. Example; swing.

XW

WW

P1 P2

A TStandby priority valve - Used toprovide back up steering system supplyin the event of a main hydraulic pumpfailure. This symbol contains two maincomponents, the priority valve, and aflow switch. Notice the chain, orenclosure lines, that surround the twoitems. The port identification is asfollows: P1 is connected to the primarypump outlet and P2 is connected to theback up or ground driven pump. The Aport is connected to the carrier steeringcircuit and the T port is connected to thereservoir.

WWWW

1-6



WWX

Single-acting cylinder - Used as the hoistbrake, this symbol also includes a pluggedport for pressure checking. As oil enters therod side of the brake cylinder, it retracts therod and compresses the spring. This actionallows the hoist to rotate. This action musttake place for hoist up, and hoist down.

WWSingle acting cylinder - Used as boomsection locking cylinder. Also equipped withmechanical release and air bleeder.

Filter Assemble - Used primarily in thehydraulic reservoir, in some cases will beused with a pressure switch and check valve.

Oil cooler assemble - Used primarily in returnlines of hydraulic system, may also be usedin conjunction with check valves to ensure cooler is kept full of oil.

1-7



Fixed displacement pump - Used to supply hydraulic oil in superstructure or carrier applications, the pump may have, two,three, or four sections. Mechanical connected as one unit.

T1

T2

LRCH

P2

Variable displacement piston pumps - Used to provide a proportional amount ofhydraulic oil supply. Their primary advantageover a gear pump is operating efficiency.They only produce oil when there is a requirement. Form 1 uses a DFR to controlthe output of the pump, this type pump control utilizes a load sense signal from the system to control the pumps output.

Form 2, also a piston pump, utilizes an LRCH to control the output of the pump. This type pump control uses proportionalpilot pressure from the joysticks in the operators cab to control the output of the pump. There are several other signals connected to the LRCH, which all play a part in the control of the pump, depending on theoperating configuration of the machine.

Bi-directional fixed displacement motor -Two directions of rotation. Hydraulic oil issupplied to either side to control the direction ofrotation, used in hoist and swing applications.The T1 and T2 ports are provide to permitcooling and lubricating oil to flow through themotor case.

1-8

DFR

TP3

Form 1

Form 2



Pump/motor unit - Fixed displacement, two directions of rotation. This component can act as a pump or a motor. It is normally used in swing circuits.

TP

a b c da e fJoystick control - Used by the operator tocontrol the amount of pilot pressure sent to various crane functions, joystick movement is directly proportional to the speed of thefunction. The a, b, e, and f ports are connectedto control valves and or actuators. The P portis connect to a regulated pilot supply.

Speed control - Used to regulate theamount of pilot pressure that is supplied tothe swing directional valve. The A and Bports are connected in parallel to the pilotlines that shift the directional control spoolfor the swing circuit. The relief valve symbolcontains an adjustable spring symbol whichrepresents an adjustment knob. Theoperator can regulate the amount of pilotpressure which is allowed to pass throughthe relief valve by increasing or decreasingthe amount of tension on the spring.

T

P

Swing brake control pedal - Used by theoperator to control the application of the swing brake.

1-9

5 - 30 bar

A B T

Connected toswing brake



Logic valve -Combines flow from pumps to increasefunction speed. This symbol is used onthe GMK 5130 to combine oil flow fromtwo different piston pump. This isaccomplished by controlling the pilot lineat the top of the symbol. The pilot line isconnected to the top surface of the logicvalve. The top portion of the logic valvehas twice the surface areaas ports A or B. The top pilot line isconnected to port A via a solenoid valve,which is not part of this symbol. Whenthe solenoid valve is de-energized, thelogic valve will remain closed thusseparating the flow in the A and B ports.When the solenoid valve is energizedthe pilot line will be connected to tankthus the logic valve will open and permitthe flow from ports A and B tocombined. Although the function speedwill increase, the amount of functionsthat can be operated at one time will beseverely limited.

1-10

W

A

B

Accumulator - used to store hydraulic energy. Typical application is the carrier suspension circuit. The accumulator absorbs pressures spikes in the suspension circuit to provide a smoother ride. Thesuperstructure swing circuits also incorporateaccumulators to ensure the swing brake remains released when in the trailing boom configuration.

1Section 2Section 2

Electric Symbols

This section contains a basic introduction to GMK electric schematic symbols.This information will provide a good foundation for a technician new to theGMK product line or a refresher for a veteran technician. The first three pagesexplain the description of location information found on the title page of theschematic. It also provides tips that will help a technician navigate from pageto page within a machine schematic. The remaining body of the this section islaid out with the electric symbol on the right side of the page and thesupporting text on the left side across from the symbol.

Note:This document is not intended to cover every symbol that a technicianmay encounter, however, it is intended to provide a starting point fromwhich to work.

GMK Electrical Symbols

SymbolSymbol

Description of Location+BE 540

+BE 550

.UM4 .UM5.UM3.UM2.UM1

.UL1 .UL5.UL2 .UL3 .UL4

.UR1 .UR5.UR4.UR3.UR2V5 V4.AK2

.AK1V3

V2

V1

V6V7

V8

V9

DescriptionDescription

Located on each electrical schematic is an illustration that provides information to aid inthe location of electrical components on the carrier. The following is a general descriptionof how to use this information.

The electrical schematic description of location provides the technician with a grid map ofthe carrier. The carrier is divided into two major areas: +BE550 which is the locator for thecab: and +BE540 is the locator for the carrier frame. The frame is broken down into threesections, each with five sub sections. The left side of the machine is designated as .UL1 -.UL5. The middle of the machine is designated as .UM1 - .UM5, and the right side isdesignated as .UR1 - .UR5. The outrigger control boxes are identified as .AK1 and .AK2.They are located on each side of the carrier. The terminal boxes are designated as. V1 -.V9, and are located in various areas throughout the machine.

2-1


SymbolSymbol

+BE 550

.A1 .A2 .A3 .A4 .A5 .A6

.A7

.A8

.A9

.A10

.LS .S1

.A11

Carrier Cab

?

SteeringWheel

Dash Panel Enclosures

Drivers Seat Relay Box


The cab is broken down into 13 areas. Each area is designated with an identifier to aid thetechnician with the location of electrical components. The designation .A1 - .A13 is used toidentify all dash panel enclosures. All electrical components housed within a dash panelenclosure will be represented schematically within an enclosure line on the schematic. Forexample, if you are looking for the carrier ignition switch on the electrical schematic, from theillustration and your knowledge of the machine you can see the switch is housed in dashpanel enclosure .A4. To find the schematic representation of the ignition switch we must lookfor the enclosure identifier .A4 with the locator +BE550.

The . A4 enclosure will show all components that are housed within that dash panel. Thedesignation .S1 represents the fuse panel, all fuse banks are located within this compartment.The .LS designation represents all components that are within the steering wheel/columnarea.

2-2


SymbolSymbol

DescriptionDescription The superstructure is broken down into eight areas . A grid locator map isprovided to aid the technician with the location of electrical components. There are eight major areas identified on the grid map. +BE600.R is the locator for thesuperstructure right side. +BE600.M is the locator for the middle of the superstructure, and +BE 600.L is the locator for the left side. The engine compartment uses +BE 660 and the auxiliary hoist is identified with the +BE620designation. Valve Block assemblies are located at various areas on the machine,and use the VB1 - VB3 designation. Terminal boxes use the locator designation V, as does the carrier.

The operators cab locator is +BE630. Within the operators cab are several identifiers to aid the technician with locating specific areas in the cab. The operators seat uses .K to identify this area of cab. The left and right armrest use .KL and .KRrespectively. The identifiers .A1 - . A7 represent modules or dash panel enclosureswithin the cab.

+BE630

V3

V14

V13

+BE660

V2 V34

+BE600.R

+BE600.M

+BE600.L

.S2

.K

.A5

.A4

.KR

.KL

.A7

.A6

.A2

-A100

.A1

.A3

.S1

GMK 5130Superstructure

Grid Locator Map

VB2 VB3 VB1

X34

+BE

620

2-3



Title Block

1234etc.

Grid

#1

Grid

#2

Grid

#3

Grid

#4

etc.

Grid lines - Each page of a schematichas numbers across the top and bottomfrom right to left. These rows of numbers form zones which are known as grids.These grids are used to help with schematic navigation. The grids startwith #1 on the right side and continuethrough #24. This information is vital whentracing a circuit.

Circuit tracing - Information is provided on wire lines that will aid in schematicnavigation. In this example, theinformation tells a technician where thisparticular circuit continuation can be foundon the overall schematic. The first number represents the dash panel or module the circuit is continuing on to.The next number represents the plugor connector that this particular circuit can be found within on the .A9 module.The last number represents the pin number within the connector where thiscircuit will be found.

The bottom set of numbers also provideadditional information concerning thecontinuation of this circuit. Thecontinuation will be found on sheet # 4, within grid # 15. When moving to page # 4, a techncian must first look forthe .A9 module, then within grid # 15 heshould be able to find the X1 connector and pin # 13.

.A9 X1 13

4.15

Pin #

Connector

Module

Sheet # Grid #

2-4



Form 1

Form 2

Conductors - Conductors or wires that cross but do not intersect are representedin form 1. Conductors or wires that crossand intersect are represented in form 2.

Female socket - Female portion of a pinconnection found on a wiring harness plug or component.

Male plug - Male portion of a pin connection found an a wiring harnessplug or component.

Ground - Frame ground

Terminal connections - The numbersprovided at wire connections give the location of the connection point aswell as the plug numbers and the pin numbers.

X2 8 X26 6

+BE550 .S1

Connector Pin number within a connector

Locator

Identifier

2-5



X1 3

V6

Terminal strip connection - The numbersprovide the following information: V6indicates a terminal box located on the carrier. X1 represents the wiring harnessgoing to the V6 terminal box. The number 3 indicates the terminal stripnumber within the V6 terminal box.

1 2 3 4 5 6 7

Terminal strip connections - Terminal strips can also be drawn horizontallywith spaces in between the terminalconnections. This symbol may spreadover several grids on one sheet.

Fuse Bank - Made up of six 10-amp fuses. The -F5 designation indicates the fuse bank number with each fuse being numbered 1 through 6. The fuse bank is located in module or enclosure .S1 withinthe carrier cab. The fuse bank receivespower from module .A4 harness plug X1, pin number 5. The origin of the power supply is found on schematic sheet number 1, grid number 21.

-F5

. A4

X

1 5

1 . 2

1

.S1

A

1 2 3 4 5 6

B C D E F

10 A 10A 10 A 10 A 10 A 10 A

Sheet

Grid

2-6



Pressure switch - Used to monitor pressure within hydraulic and other fluid power systems. These switches are normally used to trigger an electricalrelay chain to energize a variety of solenoid valves and other electrical components.

P

T

Temperature switch - Used to monitor thetemperature of fluid within power unitsfor example, hydraulic oil, transmission fliud,and engine coolant etc...

Toggle switches - Used in a variety of applications, serves as a singlepole on-off switch.

Momentary toggle switches - Used ina variety of applications, serves as single pole on-off switch. It must beheld in the on position.

2-7



br bl

sw

Form 1 br bl

sw

Form 2

Proximity switch - These switches are used in a variety of applications, for examplethe boom, suspension, rear steer lock etc.Form 1 is the schematic representationof a normally closed proximity switch.

Form 2 represents a normally open switch. The br represents the supplyvoltage, the bl represents the ground, and sw represents the signal wire.

Single-pole switch - This style switch is also provided with an indicator light, all switches carry the S designation, as well as a number. The light will illuminate whenthe switch is activated.

0 1

1 9

5 10

7 1 8 2 9

3 4 10

0 1

Double-pole double-throw switch - Used in a variety of locations within both cabs. This particular example also provides alight which indicates when the switch is activated. Also notice the normally open and normally closed contacts. This typeswitch is used many different ways.In some cases the open contacts may notbe connected to any circuits and in other cases they may be used. It is vital that the technician pay close attention tothe particular circuit connections he isworking with.

2-8

S1

S5



Form 1 Form 2

Diode - Diodes will be represented in three different forms, form 1 is usedto illustrate a blocking diode, form 2 and form 3 are used to illustrate anL.E.D., or Light Emitting Diode, which are used as troubleshooting indicators.

Form 3

Swivel slip-ring - used to represent the connection of an electrical slip-ring within a swivel assembly. This symbolis often mistaken for a diode symbol, the difference between the two symbols is the width of the arrow . The slip-ring symbol is more narrow then the diode.

Solenoid valve - Solenoid valves willbe shown in two different forms, form1illustrates a valve without an arcsuppression diode.Form 2 represents a solenoid valve with an internal diode to prevent arcing of switch contacts.

Form 1 Form 2

M

3 2

Lubrication pump - used to representan automatic lubrication system pumpassembly.

2-9



P Q

Form 1 Form 2 Sending units - There are a variety of sending unit symbols used on GMK schematics, these two forms illustrate examples of what can be encountered. Form 1 represents a pressure sending unit with an indicator light. Form 2 represents a fuel quantity sending unit without an indicator light.

Gauges - These are examples of gauge symbols that are used on GMK schematics.Form 1 illustrates a gauge with a internalindicator warning light as well as an analogindication. This particular example alsohas a light for illumination of the gauge.Form 2 is similar but it does not havean internal warning light.

+ -L

G WK

+ -L

G

Form 1 Form 2

+ -24V

12V

S

SW BR

GE

DC to DC converter - This is an example of a converter which transforms 24 volts DCto 12 volts DC.

G

3

U

Dynamo/Alternator - This is the symbol used to illustrate a alternator or as it is referred to on the GMK schematics, a dynamo.

2-10



Relay Identification - The letter K is usedto designate a relay. The prefix numberidentifies which circuit the relay is usedin and the last number is used asidentification of a specific relay within a circuit.

Superstructure Relay Identification -Without any prefix - Safe loadindicator,hoist limit, and or engine controlWith prefix 0 = Pump ControlWith prefix 1 = Main hoistWith prefix 2 = Auxiliary hoistWith prefix 3 = Telescope/Derricking

2K5Circuit Prefix

Relay identification

number

Relay - In this example, the relay coilis shown as a separate symbol on theschematic. The contacts for the relayare drawn on the same page within thesame enclosure module, but they are not connected with a line. When tracing a circuit it is important to make sure youare looking at the correct set of relay contacts. A technician must alwayslook for the relay identification number.

Coil

85

86

K5

0

K5030

87 87 b

Contacts

K10

85

86 87 87 b

30

Relay - The same basic component canalso be represented schematically as shown in this example. The major difference is that a line connects the coil of the relay to the contacts of the relay. The theory of operation for thesetwo symbols is exactly the same.

2-11



Relay - Multiple contact relays are commonly used on GMK machines. Thisis an example of how a four contactrelay will be represented on an electrical schematic. The numbers providea great deal of information that is necessaryfor navigating through the various circuits.

The numbers on the left side of the contactsrepresent the location of the contacts on the schematic. A single number indicatesthe contacts are on the same page as therelay coil and can be found in grid 15. The next example shows two numberswith a period between them. Thefirst number represents the page number the contacts can be located on and the second number represents the grid on that page. When a period is found beside the contacts, this means the contacts are not used in this circuit.

The numbers on the contacts also provideinformation. The first number represents theorder the contacts are arranged on theschematic. The second number tells youif the contacts are normally open or arenormally closed. If you examine the othersets of contacts, you should be able to seethis pattern.

Contactsnot used

Second set of contacts

A1

A2

2K5

4.8

13 14

33 34

43 44

21 22

15

.10

Coil terminalsRelay Identification

Gridnumber

Page &Grid #

13 14

2221

Normally closed

Normally open

First set of contacts

2-12



A1

A2

2K4

13 14

23 24

33 34

43 44

53 54

63 64

73 74

83 84

12

12

10

8

4.17

4.20

4.15

4.16

Relay - This is the schematic representationof a relay with eight sets of contacts. This particular example is using all normally opencontacts. Notice the contact location information on the left side of the symbol. The first four sets of contacts are locatedon the same page and the last four sets ofcontacts will be found on page number fourin there respective grid areas.

2K20 B1 A1

A2

15 18

Time Delay Relay - Time delay relaysare used to keep a circuit energized fora short time after power has been removed from the control circuit. They are used in a variety of applications. Thefirst noticeable difference is the coil symbol. There are three wires connected to the coil unlike the previous examples. Also notice the coil symbol has a black boxon the left side of the symbol also unlike the previous examples.

2-13

1Section 3Section 3

Pneumatic Symbols

This section contains a basic introduction to GMK pneumatic schematicsymbols. Each page is laid out with the symbol on the right side of the pageand the supporting text on the left. The supporting text will provide adescription of the symbol, where the component is normally used, and insome cases a theory of operation.

This document is not intended to cover every symbol that a technician may encounter, however, it is intended to provide a starting point from which to work.

Note:

GMK Pneumatic Symbols


Working line - A solid line represents a working section of the circuit. The numbers shown above indicatethe outside line diameter and the cross section of the inner diameter.

Outside diameter Tubing wall thickness

12 X 1.5

Control line - Used to illustrate control pressure.

Ventilation line - Used to illustrate air exhaust from the system.

W5 bar

S62

Pressure switch - Used to close electric contacts when the air systemreaches a predetermined value. Each switch is assigned a number,which will aid in locating the switch on the electrical schematic.

40 l V1X

Manual drain valve

Test port

Air reservoir - Used to store supplyair volume. Also represented are amanual drain valve and test port.

3-1



3/4 NPTAir compressor - Generates air supplyfor the system. A control line is provided from the air dryer to control the output of the compressor.

Port identification - This list of numbersis used to represent the corresponding type port. A second digit is to be provided if there are several similar connections.For example: 21 - energy output to energystorage device ( air reservoir 1 ) and 22 - energy output storage device ( airreservoir 2 ). If one connection can fulfillseveral functions, it must be identified by two ( first ) digits. These are to be separated from each other by means ofa dashed line. For example: 1-2 energy input or energy output

0 - Intake connection1 - Energy input2 - Energy output ( not to atmosphere )3 - Connection to atmosphere4 - Control connection or pilot inlet on component5 - Not used6 - Not used7 - Antifreeze connection8 - Lubrication oil Connection on compressor9 - Coolant connection on compressor

W

1

2

6 bar

Pressure reducing valve - Limits system pressure to 6 bar is this case. Also notice the port identification. The 1 indicates energy input and the 2 indicates energyoutput, as listed above.

3-2



WWSingle-acting cylinder - Used to actuatevarious mechanical components via airpressure. i.e., inter axle diff locks, or cross axle diff locks.

1

23

4

2

Relay valve - used to control air volume to service brake chambers. Port identification is as followings: port #1 is the input supply directly from the air reservoir.Port #2 output air supply to brake chamberswhen relay is triggered. Port #3 releasesair to atmosphere when control pressure signal has been removed. Port #4 controlpressure from service brake pedal, and triggers actuation of relay valve.

1

41 42

22

3

Anti compounding valve - In the event the parking brake and the service brake areapplied at the same time, this valveprevents possible damage to the brakedrums by metering air into the maxibrake chambers thus compressing theparking brake spring tension. Port identification is as follows,Port #1 is the supply from air reservoir,Port #2 is the output supply to the maxibrake chambers, Port #41 is the controlpressure input signal from the servicebrake pedal, Port #42 is the control pressure signal from the parking brake hand valve.

3-3



W

W

WW 23

24

22

21

1

5.5 bar

5.5 bar

6 bar

6 bar

Circuit Protection valve - Used to isolateindividual circuits in the event of a system failure. This valve will prevent a complete loss of system air volumeif one of the circuit lines rupture.The port identification is as follows:Port #1 is the input supply from the airdryer, Port # 21 supplies, in this case brake circuit number one. Port #22supplies brake circuit number two. Port#23 supplies brake circuit number three, and Port #24 supplies brake circuit number four.

1-2

W

12

Tire inflator valve - Used to inflate tiresor provide an external air supply. Port identification is as follows: Port #1 isthe supply from the air compressor, Port #2 is the output supply to the quick disconnect and Port # 1-2 is the source for the external supply.

11

12

3

3

21

21

21

22

22

22

Service brake valve - used by the operator to meter air volume to the service brakes. Port identification is asfollows: Ports #11&12 are the supplyports from the number 1 & 2 brake circuits,respectively. The Ports numbered 21 & 22are output control lines to various relay valves, and the ports numbered 3 arerepresenting air exhaust to theatmosphere.

3-4



W

3

1

21

22

Parking brake hand valve - This valve is used to control brake release airvolume to the maxi brake chambers. Ithas three possible positions: as shown, thevalve would supply control air volume to release the maxi brakes. The next position would permit the operator to bleed off release air to slowly apply the maxi brakes. The last position would exhaust the release air volume completely, thus applying the parking brake. The port identifications would follow the samepattern as the previous symbols.

WWService Brake Chamber - Used primarilyon the front axle to apply brakes when airair volume is supplied to the inlet port.

WW WW

11 12Maxi brake chamber - Used fortwo primary purposes: applying air to Port# 12 will release the parking brakeand allow the machine to move. If air volume is applied to Port # 11, the servicebrakes will be applied, thus stopping orslowing the machine.

3-5



3-6

Air dryer - The air dryer is provided to remove moisture from the system. It also serves as a governing device to limit the maximum amount of air pressure the systemcan achieve. The port identification is as follows: Port #1 is the inlet supply from the air compressor, Port #21 is the output linewhich supplies air volume to the pressure protection valve. Port #22 is connected tothe regeneration tank, which purges thesystem when the maximum pressure is reached. The two-position valve at the topof the symbol is set at 8.1 bar. This device serves as the pressure limiting componentfor the system.

W

W

WW

W

8.1 bar

21

223

1

4

1Section 4Section 4

Elan Electrical Schematics

This section contains a basic introduction to GMK Elan schematic structure and symbols. The information contained herein will provide a good foundation for a technician new to the GMK product line, or as a refresher for a veteran technician. This section will began with a general description of Elan, followed by several pages laid out in two different manners. The first several page will have examples at the top of the page and the supporting text at the bottom. This will be followed by several pages with the schematic symbols on the right side of the page and the supporting text on the left. The supporting text will provide a description of the symbol and in some cases theory of operation.

Note:This document is not intended to cover every symbol that a technician may encounter, however, it is intended to provide a starting point from which to work.


SymbolSymbol


4-1

Section 01Title Page

Section 01Contents

Print 1Page 1-X


Section 02Contents

Print 1Page 1-X


Section 03Contents

Print 1Page 1-X

Location MapPage 2Upper

Location MapPage 1Carrier

Elan Schematic structure

The Elan schematic structure begins with several pages depicting graphic views ofmajor sections of the crane. All major sections are called assembly groups, which aregiven an identity or location code. For example: Carrier Chassis +BE 505, Carrier Cab + BE 550, Turntable + BE 600, Superstructure cab +BE 630, and Telescopic boom + BE700.

The major assembly groups are then divided into functions groups. The function groups are given an identity number. The function groups are made up of a title page, table of contents page, and finally the actual Elan schematic pages. For example: Carrier frame, 02 = Diesel Engine Chassis 41 = Drive unit Chassis, 47 = Steering Chassis, Superstructure 11 = Main hoist, 23 = slewing gear and,37 = safety equipment


D

SymbolSymbol

DescriptionDescriptionThis is an example of a function group location map. This map represents the carrier and

the drivers cab, the drivers cab is designated as +BE550 and the carrier frame is designated as +BE 506. The carrier frame is subdivided into specific location areas with individual identification /location codes. For example UR1, UM3, these designations will aid a technician with the location of electrical components much like the location maps provided on single sheet electrical schematics. Additional component identification /locations are also given to enclosures with abbreviated identification/location, and a listed description. The list of codes is located under each of the respective maps. This information will direct a technician to specific areas of the machine, thus aiding in component location when troubleshooting.

4-2

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17.03.98 pos

DatumNameGes.Plot

A 841070 0Zust. Anderungs-Nr. Anzahl Name

07.01.97 Plotdatum 04.05.98

SKSUrspr. Ers.f.

GMKErs.d.

Benennung

AnLagenkennzeichungOrtskennzeichen UW FHG 800 TK 4Abt.

Auftrags - N r. Kenwort

Zeic hnungs - N r. F3

8

1 2 3 4 5 6 7 8

Blatt 18 Bl.

F

E

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B

A

+BE 506

.UR1 .UR2 .UR3 .UR4 .UR5

.UL1 .UL2 .UL3

FUR SEPARATLENKUNGfor separate steering

.UL5

.UM1 .UM2 .UM3 .UM4 .UM5.SR

+BE550

.A6

FAHRERHAUSdriverscabin

FAHRGESTELL

carrier

+BE 506

FAHRERHAUS

driverscabine

+BE 550

.V1 - .V8

.UL1 - .UL5

.UM1 - .UM5

.UR1 - .UR5

.SR

.AK1

.AK2

.NK1

.NK2

.B1/.B2

terminalboxes

section carrier left

section carrier middle

section carrier right

sliprings

stabilizing unit left

carrier lights front/rear

stabilizing unit right

angle status display left

angle status display right

VERTEILERKASEN

SEKTIONEN KRANTRAGER LINKS

SEKTIONEN KRANTRAGER MITTE

SEKTIONEN KRANTRAGER RECHTS

SCHLEIFRINGKORPER

ABSTUTZEINHEIT LINKS

STObSTANGE VORNE/HINTEN

ABSTUTZEINHEIT RECHTS

NEIGUNGSAZEIGE LINKS

NEIGUNGSAZEIGE RECHTS

.A1 - .A4

.AL

.LS

.S1

panel modules

cabinelements

steeringcolumn

connections

MODULE

KABINENELEMENTE

LENKSAULE

SCHNITTSTELLE

FAHRERHAUSE

driverscabin

.A3.A2.A1 .S1

.A4

.LS

.V9 .V7 .V8

.AK2.V4

.NK2.V5

.V6.AK1

.V10

.NK1

.V2

.V3

.V1

+BE550UNTERWAGEN

carrier

.UL4

sm07951Rectangle


Developed byGrove Training Institute

SymbolSymbol

DescriptionDescriptionThis is an example of the superstructure locator map. As in the previous

example, it provides the technician with identification / location codes that will aid in determining the location of components on the machine. The superstructure is identified as +BE600 and the superstructure cab is designated as +BE630. Terminal boxes, counterweight cylinders , valves, and other components are identified in the lists located under the respective map.

Within the Operators cab are several identifiers to help a technician locate specific items inside the cab. The seat is identified as K5, and the left and right armrest use KL. And KR. respectively. The identifiers .A1 -.A5 represent modules or dash panel enclosures within the cab.

4-3

1 2 3 4 5 6 7

1 9 .0 9 .9 4

p o sp o sp o s

D a tu mN a m eG e s.P lo t

A 3 4 48 4 3Z ust. A n d e ru n g s-N r. A n za h l N a m e

P O S IM A

p o stm a

Plo td a tum 1 9 .0 9 .9 4

SKSU rsp r. Ers.f.

GMKErs.d .

B en en nu ng

AnLagenkennzeichnungOrtskennzeichen OW F H G 800 TK 4Ab t.

A uf trag s - N r . K en w o r t

Z e ic h nu ng s - N r. F3

B la tt 22 B l.

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HIFLSHUBTRAGERAUXILIARYHOIST+BE 620

-A103

+BE600

.V7 .V2 .VB2 .VB1 .V1 -M1 -V3 .GZR

-A102

.VB3 .V6

-101

-X101,102 .V5 .GZL.V4 -X203

+BE620

.V8

-A114 -A111 -A104

+BE630

.AL

.A1 .A3.A2

.A4

.KR

.A5

.KL .K5

-X201,202

DREHTISCHTURNTABLE+BE 600

KRANKABINECRANEDRIVERSCABIN+BE 630

TELESKOPAUSLEGERBOOMS+BE 700

.A1 - .A8

.KR

.KL

.KS

.AL

MODULE

KRANSITZ

RECHTS

KRANSITZ

LINKS

KRANSITZ

KABINENELEMENTE

PANELMODULES

CRANEDRIVERSEAT

RIGHT

CRANEDRIVERSEAT

LEFT

CRANEDRIVERSEAT

CABINELEMENTS

-A102

-A103

-A104

-A111

-A114

-X201,202

DRUCKAUFNEHMER

DRUCKAUFNEHMER

WINKLE / LANGE

KABELTROMMEL

TELE 1

KABELTROMMEL

TELE 2 - 4

STECKVERBERBINGUNG

PRESSURESENSER

PRESSURESENSER

ANGLE / LENGHT

CABLEDRUM

TELE 1

CABLEDRUM

TELE 2 - 4

CONNECTORS

.V1 - .V8

.GZR

.GZL

.VB1 - .VB3

-A101

X101, 200 - 300

-M1

VERTEILERKASTEN

GEGNGEWICHTSZYL.

RECHTS

GEGNGEWICHTSZYL.

LINKS

VENTILBLOCKE

MESSWERTSENDER

STECKVERBINDUNG

OLKUHLER

TERMINALBOXES

COUNTERWEIGHTCYL.

RIGHT

COUNTERWEIGHTCYL.

LEFT

VALVES

PLUGS

OILRADIATOR

A A A

sm07951Rectangle



SymbolSymbol


This is an example of a title page for a function group. Each function group begins with the same basic cover sheet.

4-4

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07.01.97 Plotdatum

STRUrspr. Ers.f. Ers.d.

Benennung

PLAN, E-SCHALT-DIESEL-MASCHINEN-ANLAGE UW FHG 800 TK 4Abt.



8

1 2 3 4 5 6 7 8

Blatt 117 Bl.

F

E

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B

A

=02GROVE

CRANE

=02 Diesel-MaschinenAnlage UW

diesel engineinstallation chassis

sm07951Rectangle



SymbolSymbol


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DatumNameGes.Plot


05.01.98 Plotdatum 04.05.98

SKSUrspr. Ers.f. Ers.d.

Benennung

AnLagenkennzeichungOrtskennzeichen UW + OW FHG 800 TK 4Abt.



8

1 2 3 4 5 6 7 8

Blatt 88 Bl.

F

E

D

C

B

A

GROVECRANE

The example above illustrates a table of contents page that outlines each page or(Blatt) within a function group. The remarks section on the right side of the page gives a brief explanation of what portion of the electrical circuit is covered on the respective page.

sm07951Rectangle



SymbolSymbol


4-6

Once you have a good understanding of the Elan structure, it is important to learn how to navigate for page to page and from function group to function group. Circuits that continue to other pages are given identification of the continuation by group/page and grid line as required; there may be a signal number with a +BE code and a destinationterminal reference. The signal number is for continuation identification only; it is not a wire number. On later GMK models the Elan schematics have less signal numbers.They give the wire termination with module/insert/terminal box identification, and the function group, page & grid reference numbers. The next several examples will illustrate how to move within the Elan schematic document.

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A 841078 0Zust. Anderungs-Nr. Anz ahl Name

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Urspr. Ers.f. Ers.d.

B enennung

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F

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GROVECRANE STR PLAN, E-SCHALT-

DIESEL-MASCHINEN-ANLAGE UW

Postma=02+BE550.S1

1

2

3

4

5

6

7

8

9

10

Batterie 2 X 12V

Battery 2 X 12V

Batteriehaupt-schlater

battery master switch

Anlasser

starter

Lichtsmachine

alternator

Fogeschaden-schultz

high voltageprotection

No.< >

157

/15.

1+B

E50

6.U

M2

-A1

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D-

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- M1+BE506.UM2

5030

6 2

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1

2+BE506.UL2

-G1+BE506.UL2

-53+BE506.UL2

-G2+BE506.UL2

+

+

_

_

< 4 >< 3 >< 1 >

< 2 >

< 5 >

-X5 1

=-F7

50A

1

2+BE506.UL2

=-F6

50A

1

2+BE506.UL2

/10.

6-F

6/6

6

31 B-

70 2

2,5

2

4 8/5

.7+-

K5 3

0

/6.1

-F1/

1.1

S1/R

30 /5.1

6 2

2,5

2

6 2

6 2

-X2 12

21/1

6.4

-A1

11/

3

3/5

.4-K

5 8

6

1=4

4/4.

1

PLUS 1 MINUS 1

Kundenwunnschcustomers request

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1 2 3 4 5 6 7

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DatumNameGes.Plot

A 841078 0Zust. Anderungs-Nr. Anz ahl Name

05.01.98 Plotdatum

STRUrspr. Ers.f. Er s.d.

Ben ennung

FHG 800 TK 4Abt.

Auftrag s - N r. Kenwort

Zeic hnu ngs - N r. F3

8

1 2 3 4 5 6 7 8

Blatt 517 Bl.

F

E

D

C

B

A

GROVECRANE

Pos tma

ihnen

PLAN, E-SCHALT-DIESEL-MASCHINEN-ANLAGE UW

=02+BE550.A3

1 Zuendschalter

ignition switch

2

3

4

5

6

7

8

9

10

AnLasssperre

starter interuption

No.< >

R15 15+BE550.LS

50 P30

R30

-X94 P30+BE550.LS

-X941 5+BE550.LS

-X94 15+BE550.LS

-X941 8+BE550.LS

S1/15/7.1

-X94 50+BE550.LS

-X941 7+BE550.LS

/15.1+BE550.S1 -X1 8

-X43 4+

-X43 3+

/16.5+BE550.S1 -A1 11/5

-X43

5+

-K3 30875

=

2

22

-K124

3

=415

+BE550.S1=41/7.6

-X94 R15+BE550.LS

-X941 3+BE550.LS

/9.1S1/R15

-S1

-X941 6

-X94 30+BE550.LS

-X941 4

-X94 R30+BE550.LS

30

+BE550.LS+BE550.LS

/3.2S1/R30

/3.2S1/30

2,5

2

6 2

2,5 2

6 2

-X43

2

+

-X43

3

-K5

87 30

85

+BE550.S1 86

OHNE DIODEwithout diode

-K3 86

+BE550.S1 85

OHNE DIODEwithout diode -H1

1

GE

2RT

87a7

1

87 30

87a2

/3.5+BE550.S1 -X2 12

S1

27/1

2.1

-P6

+

/4.7

F3: 1/2/8.2

-K5 30875

=

+BE550.S1

8/3

.310

/10.

1+B

E550

.S1

-F6/

1 1

6 2

6 2

Ladekontrolle

charge control

< 3 >< 1 >

< 2 >

Navigating Elan Schematics

Function Group= 02/3.2=Sheet, Grid

Section =02/5.1=Sheet, Grid

sm07951Rectangle




Grid lines - Each page of an Elan Schematic has numbers across the top and bottom from left to right. These rows of numbers form zoneswhich are known as grids.These grids are used to help with schematic navigation. The grids startwith #1 on the left side and continuethrough #8. This information is vital whentracing a circuit. The schematic drawingextends from grid 1-7. Grid 8 is reserved for component description and has vertical numerical reference 1-10.Component functions that require adescription are contained within numberedbrackets < > on the schematic. The brackets number is then referred to in the description column for its particularfunction.

4-7

Page identification The component Identification /location area code is shownon the bottom right corner of the page,directly beneath the function group. Should a component have another location the Identification/location codes are listed Beside the component item on the Schematic drawing; these codes can be used to locate the components on the crane relative to the assembly locator map.

=02+BE550.S1

Blatt 320 Bl

Page 3of 20

Function group: =Diesel Engine Install

Location: + Carrier cab Connection .S1

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1 2 3 4 5 6 7

17.04.98 pos

DatumNameGes.Plot


07.01.97 Plotdatum 04.05.98


Ben ennu ng

F HG 800 TK 4Abt.

Auftrags - N r. Kenwo rt

Zeichn un gs - N r. F3

8

1 2 3 4 5 6 7 8

Blatt 317 Bl.

F

E

D

C

B

A



Postma=02+BE550.S1

1

2

3

4

5

6

7

8

9

10

Batterie 2 X 12V

Battery 2 X 12V



Anlasser

starter

Lichtsmachine

alternator

Fogeschaden-schultz


No.< >

157

/15.

1+B

E50

6.U

M2

-A1

50S1

/30

/5.1

6 2

95 2

2,5

2

16 2

95 2

47/17.6+BE506.UL4 -A2 :

95 2

2,5

2

MG

3U

16 2

D-

D+

- F11+BE503.UM2

D+B+W- G3+BE506.UM2

- M1+BE506.UM2

5030

6 2

95 2

-X2 13+

=-F9

20A

1

2+BE506.UL2

-G1+BE506.UL2

-53+BE506.UL2

-G2+BE506.UL2

+

+

_

_

< 4 >< 3 >< 1 >

< 2 >

< 5 >

-X5 1

=-F7

50A

1

2+BE506.UL2

=-F6

50A

1

2+BE506.UL2

/10.

6-F

6/6

6

31 B-

70 2

2,5

2

4 8/5

.7+-

K5 3

0

/6.1

-F1/

1.1

S1/

R30 /5.1

6 2

2,5

2

6 2

6 2

-X2 12

21/1

6.4

-A1

11/

3

3/5

.4-K

5 8

6

1=4

4/4.

1

PLUS 1 MINUS 1


X)

6 2

95 2

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

Grid 8 - Description area

The bottom of the schematic is were the bracketed numbers will belocated

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Circuit continuation Form 2The numbers provided at the top of the line determine the function group number, the page, and gridnumber for this particular circuit.Located on the underside of the wire is the location identifier with the module number. Followed by theconnector number and the pin numberfor the respective circuit. The signal lineis used to help guide the user to the correct area of the schematic on theFollowing page.

4-8

Circuit continuation Form 1Information will be provided at theend of each line. When no functiongroup is provided the circuit continuation is within the same function group, in this example, page 12Grid 1.The number 20 represents a signal wire # that can be used to help ensureyou are following the correct line on the following page.The information at the bottom of the line provides the location on the craneas well as the module, plug, andpin number.

Signal line

/12.1

+BE550 .A2 X40 320

No function group information prior to the page number indicates that the continuation is within the samefunction group; in this example, page 12grid 1.

Location = Carrier cabModule = .A2 Connected toPlug/terminal X40 pin3

Form 1

= 01/3.2

+BE600 A5 X22 94

Function group number,Page and Grid Number

Location and module numberConnector number 22 and Pin 9 within that connector

Signalline

Form 2

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Special prefix symbols There arebasic symbols that are used within Elanto illustrate information application.The( =) symbol is used to represent a function group. The (+) symbol is used to represent the location of a particularcomponent. The () symbolis used to illustrate a component.

Prefix letters There are various abbreviations and prefixes used withinElan schematics, the list on the rightoutlines a few examples. .

4-9

Function Group (=)Example: =03 is lighting on the carrier

Location of component (+)Example: +BE550 .S1 is carrier cab

connections.

Component (- )Example: - K1 is a relay

B = SensorsE = White lightsG = Battery/GeneratorH = Warning lightsK = RelayM = MotorR = ResistorS = SwitchX = Terminal/Plug followed by a pin #Y = SolenoidF = FuseJ = JoystickV = DiodeP = Pressure switchW = Electric swivel slip ring

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Component prefix On later model GMKmachines, the switch, relay, and solenoid valve prefix numbers are the same as thefunction group number, for example; in form 1, solenoid valve Y2130 is shown, The letter Y represents a solenoid and the next two numbers 21, representfunction group 21 or the telescope circuit.The last numbers are the identification number of the solenoid valve. In form 2, a switch is illustrated, the identification number of the switch is S2304The letter S represents a switch, and the first two numbers 23 , represent the slewing gear or swing circuit. The last two numbers are the identification number for this particular switch within the swing circuit.

4-10

Form 1Y2130

7 1 8 2 9

5 6 10

01

Form 2S2304

Elan layout The schematic is drawn in principle with the power supply path beginning at the top of the page and theground path at the bottom. Later Elanschematics have dedicated pages for both power supply and ground terminations.Terminal boxes prefix (V) and PVC multi-core cables are now used instead of atraditional wiring harness. Cables of2, 3, 5, 7, 12, 15, 25, & 55 core areused. The cables have wire numbers andall cables other than two core, have one brown wire that is used as ground.

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Power supply

Ground Path

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Relays Relays from Bosch, Siemens& Telemecanique are used. Telemecanique has been used to replace Siemens in later models because it is power rated at 28 volts, socket mounted,and has better utilization & increasedcapacity. Bosch relays only have a single leg contact configuration drawing, onlythe application used will be drawn in the Identification for Bosch.

Form 1 is a typical Bosch relay. Terminal86 depicts the power input and 85 represents the ground side of the coil.Terminal 30 is the common with 87a asthe normally closed and 87 as the normally open terminal. The number 2 to the left of the contacts, representsthe grid line in which the contacts will be shown in the schematic.

Form 2 is a typical example of a BoschMicro Relay. Terminals A1 & A2 are thePower and ground terminals respectively.In this case terminal 3 is common with4 being normally closed and 5 beingnormally open.

4-11

4

35

A1

A2

Form 2

85

86Form 1

87a

3087

2

The contact configuration is drawn atthe bottom of the page. This formationwill denote that the actual contact canbe found in grid line 2 of the same page.

mlsease2

mlsease

mlseaseThe contact configuration is drawn atthe bottom of the page. This formationwill denote that the actual contact canbe found in grid line 2 of the same page.

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Relay Siemens relays have only one function per contact leg, eitherN/O or N/C. The contact configuration may vary depending on requirements,and can be 4 or 8 contact sets per relay.As the relays have multiple contactsit is not possible to draw the schematic and keep the complete set of contactsassociated with the actuating coil together.Subsequently, you will see the drawingof the actuating coil with the completecontact configuration drawn at the bottomof the page, beneath or adjacent to theactuating coil. The contact configuration contains location information that will allow you to find the actual contacts that are now drawn as single items withinthe schematic. The system isbi-directional and against any set of contacts there will be location informationto locate the actuating coil.

A1

A2

13 14

33 34

43 44

21 22

4-12

The first digit of the contact number only indicates the numerical referenceof the relay contactleg. For example,

1,2,3 &4

The second digitof the contactnumber indicatesthe contact statusFor example;

3 & 4 = N/O1 & 2 = N/C

13 14

33 34

43 44

21 22

2

3

=33/3.4

/4.1

The informationpreceding thecontacts is thelocation guidefor the contactsin the schematic.

For example;2 = Grid 2 on the same page33/3.4 = Group 33, page 3, grid 4

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A1

A2

K1102Relay Telemecanique relays areused in a 4 contact configuration withthe availability of dual functions per contact leg; both N/O & N/C. The logic for locating the contacts is thesame as the Siemens examples on the previous page. Schematically,the major difference between thetwo types of relays is that the Telemecanique relay has threeterminals per contact set, and the Siemens relay, only has two, which are N/O or N/C.

4-13

12

11

21

31

41

14222432

3442

44

12

11

21

31

41

14222432

3442

44

5

/5.2

/6.6

=47/4.3

The information preceding thecontacts is thelocationguide for thecontacts in theschematic

The first digit of the contact number only indicates the numerical referenceof the contact legs

The second digitOf the contact Number indicatesThe contact status;

1 & 2 = N/C1 & 4 = N/O

For example;5 = Grid 5 on the same page

=47/4.3 = Function Group 47, page 4, grid 3

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Time Delay Relay - Time delay relaysare used to keep a circuit energized fora short time after power has been removed from the control circuit. They are used in a variety of applications. Thefirst noticeable difference is the coil symbol. There are three wires connected to the coil unlike the previous examples. Also notice the coil symbol has a black boxon the left side of the symbol also unlike the previous examples. The B2 terminalservers as the trigger for the timer, theB1 terminal is a constant 24 volt supply.with the A2 terminal serving as the ground.Another difference is the arc locatedabove each contact set. This symbol represents special contacts, and in the case, the special is referring to thetime delay feature of this relay.

4-14

- K1103 B2 B1

A2t = 1 sec

12

11

21

31

41

14

22

24

32

34

42

44

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IndexIndex

A

Accumulator 1-10Air compressor 3-2Air dryer 3-6Air reservoir 3-1Anti compounding valve 3-3

B

Bi-directional fixed displacement motor

C

Chain line 1-1Circuit protection valve 3-4Circuit Tracing 2-4Conductors 2-5Continuous line 1-1Control line 3-1

D

Dash panel enclosure 2-2Dashed line 1-1DC to DC converter 2-10Description of location 2-1Diode 2-9Double-pole double-throw switch 2-8Double line 1-1Dynamo/ Alternator 2-10

E

Electic over hydraulic control valve 1-5Electric solenoid 1-4

F

Female socket 2-5Filter assemble 1-7Fixed displacement 1-8Flexible line 1-1Flow switch 1-4Fuse bank 2-6

GGate valve 1-2Gauges 2-10Grid lines 2-4Grid map locator 2-3Ground 2-5

H

Hydraulic pressure switch 1-2

J

Joystick 1-9

L

M

P

O

Line size 1-1Lock valve 1-4Logic valve 1-10Lubrication pump 2-9

Male plug 2-5Maxi brake chamber 3-5Momentary toggle switch 2-7

Oil cooler assemble 1-7

Parking brake valve 3-5Pilot operated control valve 1-5Pilot operated dieectional contro valve 1-6Port identification 3-2Pressure reducing valve 1-3, 3-2Pressure switch 2-7, 3-1Proximity switch 2-8Pump/motor unit 1-9l

R

Q

Quick disconnect 1-2

Relay 2-11, 2-12, 2-13relay identification 2-11Relay valve 1-3, 3-3

S

Sending units 2-10Service brake chamber 3-5Service brake valve 3-4Single-pole switch 2-8Single-acting cylinder 1-7, 3-3Solenoid valve 2-9Speed control 1-9Standby valve 1-6Swing brake control pedal 1-9Swivel slip-ring 2-9

TTemperature switch 2-7Terminal connections 2-5Terminal strip connections 2-6Test port 1-1Time delay relay 2-13Tire inflator valve 3-4Toggle switch 2-7

V

Variable displacement piston pump 1-8Velocity fuse 1-4Ventilation line 3-1

W

2-Way electric over hydraulic directional control valve 1-63-Way electrically operated valve 1-53-Way electrically operated valve with manual override 1-54-Way electrically operated valveWorking line 3-1

IntroductionTable of ContentsSection 1 Hydraulic SymbolsSection 2 Electric SymbolsSection 3 Pneumatic SymbolsSection 4 Elan Electrical Schematics

Index

133113925 GMK Schematic Handbook

Documents

Transcript of 133113925 GMK Schematic Handbook