Link Belt Service Manual 5v3s36
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Service Manual
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Wire Location in Circuit
1
2 3
Category
Color 6
Circuit Designation Example: Wire number 243---A BLU indicates: Category 2, circuit 43, conductor A, blue wire. Figure 1 Wire Number Explanation
Electrical System Wire Identification Code In order to simplify electrical troubleshooting techniques, the electrical system of this crane uses a “Wire Identification Code”. The following information outlines the “Code” used to identify the wires in a crane’s electrical system.
Wire Harness Each wire, in any given wire harness within the electrical system, has a colored insulating coating. This coating is labeled with a wire number. The color and wire number, when fully understood, will allow the positive identification of a wire and its specific use in the circuit. Each wire has four basic identifying elements. Refer to Figure 1.
Category The first character of each wire number corresponds to a general category. Seven basic categories exist and are described as follows: 1. Category 1: Primary Power (Red or Orange) 100 series numbers are used to identify wires which are used to provide the originating source of power to all circuits within the electrical system.
1. 2. 3.
5
Circuit Breaker Thermal Switch Wire Connector
4 4. 5. 6.
Indicator Light Buzzer Ground Bolt
Figure 2 Wire Number Suffix Sequence 2. Category 2: Engine and Transmission Control (Blue) 200 Series numbers are used to identify wires in circuits used in the operation and control of the engine and transmission. 3. Category 3: Monitoring Group (Yellow) 300 series numbers are used to identify wires in circuits used in monitoring crane operation. Circuits that contain gauges or instrumentation are included in this category. (See Category 8 also.) 4. Category 4: Lighting and Horns (Green) 400 Series numbers are used to identify wires in the interior and exterior lighting circuits of the crane, as well as the horn and back up alarm circuits. 5. Category 5: Equipment Control (Brown) 500 Series numbers are used to identify wires in circuits concerned with the operation and control of functions that are unique to the crane. (See Category 7 also.) 6. Category 6: Accessories (Violet) 600 series numbers are used to identify wires in circuits concerned with the operation and control of operator accessory equipment such as heaters, defrosters, windshield wipers, etc. 7. Category 7: Equipment Control (Brown) 700 series numbers are simply an extension of Category 5. (See Category 5 also.) 8. Category 8: Monitoring Group (Yellow) 800 series numbers are simply an extension of Category 3. (See Category 3 also.)
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Wire Location In Circuit The fourth character of the wire number is a letter suffix which is used to relate a particular wire’s location relative to the rest of the circuit. The letter suffix, which is assigned sequentially, generally starts from the circuits power source, changes at each of the circuits working components, and ends once a wire reaches ground potential. Refer to Figure 2. Note: The letter suffix does not change when two wires are ed by a wire connector.
Color The color of the wire, like the wire number, has a very specific meaning. It can be used to identify, as well as, describe the function of the wire in a given circuit. All wires are colored according to the category that defines their corresponding circuit, with the following exceptions: 1. Wires which are directly connected to the system power source, and are at constant battery potential, are colored RED. These wires remain “HOT” at all times. 2. Wires that are at battery potential only when the ignition switch is in the “ON” position are colored ORANGE.
Category 1 Primary Power Circuits Wire Number Description 000
Spare Collector Ring Connection
101
Battery Charge
102---110
Battery Distribution
111---119
Distribution Controlled By Main Switch
120---121
Main Switch Solenoid
122---123
Chassis Ground
124
Wheel Anti-Lock Power Supply
125
Remote Control Power Supply
126---127
Distribution Controlled By Main Switch
128---129
Ground
130
Battery Distribution
131
Distribution Controlled By Upper Switch
132
Controller Power
133---137
Ground
138
24 Volt Power
139---140
Ground
141---143
Distribution Controlled By Transmission
144
Trailer ABS Power Supply
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Service Manual 3. Wires that are at constant ground potential are colored BLACK.
Circuit Designation The second and third characters of each wire number specifically identify the circuit within any given category. See the category listings found later in this document for specific wire number designations. Note: All wire numbers listed in category listings are typical and may not necessarily apply to one given crane.
Jumper Wires A jumper wire is defined as any wire not included in a wire harness. These wires are not labeled with a wire number. They are labeled however, with the actual wire part number which can be used to order a replacement wire. All jumper wires will be colored white with the same exceptions, red, orange and black as described for the wire harness.
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Category 2 Engine And Transmission Control Circuits Wire Number Description 201---203
Starter Solenoid
204---205
Starter Motor
206---207
Engine Stop
208---209
Emergency Engine Stop
210
Throttle Lock
211
Throttle Control
212
Engine Torque Limit
213
Fuel Cooler
214
EMP Air Pump
215
Idle Validation
216---229
Other Engine Controls
230
Check/Stop Engine Power
231---240
Transmission Shift Select
241---242
Master Clutch Control
243
Ether Control
244
Outrigger Throttle Control
245
High Idle Solenoid
246---254
Torque Convertor Control
255---256
Speed Limiting
257
Fuel Heater
258---267
Other Transmission Controls
268
Throttle Actuator
269
Other Control
270
Throttle Supply
271
Intake Air Heater
272
Other Control
273---276
Transmission Supply
277
Transmission Cooler Fan
278
J1939 CAN High
279
J1939 CAN Low
280
J1939 CAN Shield
281
RPM Limiting
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Category 3 Monitoring Circuits (Also See Category 8) Wire Number Description 301---302
Instrument Supply
303---304
Fuel Level
305---306
Engine Oil Pressure
307---308
Engine Coolant Temperature
309
Fuel Pressure
310
Voltmeter
311---312
Tachometer/Engine Speed Indicator
313
Hourmeter
314
Transmission Oil Temperature
315---316
Engine Oil Temperature
317---318
Torque Convertor Oil Pressure
319
Speedometer
320---321
Hydraulic Oil Temperature
322---326
Hydraulic Filter Indicator
327
Low Hydraulic Charge Pressure
328---329
Master Clutch Indicator Light
330
Gear Case Lube Indicator
331---334
Drum Rotation Indicator
335
Swing Lock Indicator
336---338
Low Air Pressure Indicator
339
Auxiliary Steer Indicator
340
Emergency Brake Indicator
341
Skid-Trol Power & Fault Indicator
342
Boom Length Indicator
343
Hoist Brake Alarm
344
Cab Control Shutdown Indicator
345
Dual Function Instrument Supply
346
Load Moment Indicator - Power Supply
347
Load Moment Indicator - Logic Control
348
Load Moment Indicator - Swing Rotation Indicator
349
Load Moment Indicator --- Function Interlock & Alarm
350
Wheel Anti-Lock System Fault Indicator
351
Remote Control Brake Pressure Monitoring
352
Bumper Outrigger Overload Alarm
353---356
Drum Rotation Indicator
357
Power “ON” Indicator
358
Anti-Two Block
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Category 3 --- Continued Monitoring Circuits (Also See Category 8) Wire Number Description 359---360
Drum Limit Light
361
Engine Overheat Alarm
362---363
Air Pressure
364
Free-Fall System Indicator
365
Oil Level Alarm
366
Ladder Rung Alignment Indicator
367
Open Door Indicator
368
Controller Power Indicator - Base
369
Controller Power Indicator - Platform
370
Outrigger Interlock Indicator - Left Side
371
Outrigger Interlock Indicator - Right Side
372
Over Front Indicator And Warning Buzzer
373
Oil Pressure Alarm
374
Load Moment Indicator - Swing Rotation Indicator
375---376
Low Air Pressure Indicator
377---378
Free-Fall System
379
Engine Monitor - Upper
380
Light Test
381
Position Indicator
382---383
Engine Monitor - Carrier
384---388
Swing Potentiometer Indicator
389
Emergency Brake Boost Flow Indicator
390
Counterweight Removed/Attached Indicator
391
Auxiliary Steer Indicator
392
Suspension Lockout Indicator
393---395
Rear Axle Steer Lock Pin Indicator
396
Park Brake Indicator
397---398
Axle Differential Lock Indicator
399
Steer Indicator Gauge Monitoring Circuits Continued As Category 8
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Category 4 Lighting And Horn Circuits Wire Number Description 401
Distribution Controlled By Light Switch
402---403
Headlights
404---405
Clearance Lights
406
Tail And Clearance Lights - Carrier Left Side
407
Tail And Clearance Lights - Carrier Right Side
408
Backup Lights And Alarm
409
Backup Solenoid
410
Brake Light Switch(es)
411---412
Interior Cab Lights
413
Emergency And Turn Flasher
414
Front Turn Light - Carrier Right Side
415
Rear Turn And Stop - Carrier Right Side
416
Front Turn Light - Carrier Left Side
417
Rear Turn And Stop - Carrier Left Side
418---422
Exterior Lights
423
Tower Obstruction Light
424
Interior House Lights
425---426
Horn
427
Instrument Lights
428
Light Solenoid
429---430
Travel Alarm
431
Boom Telescope Override
432
Lift And Tilt Alarm
433
Instrument Lights
434
Rotating Beacon
435
Swing Alarm
436
Backup Light
437
Backup Alarm
438
Brake Light Switch
439
Emergency And Turn Signal Flasher
440
Tail And Clearance Lights - Upper
441
Front Turn Light - Upper Right Side
442
Rear Turn And Stop - Upper Right Side
443
Front Turn Light - Upper Left Side
444
Rear Turn And Stop - Upper Left Side
445
Daytime Running Lights
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Category 5 Equipment Control Circuits (Also See Category 7) Wire Number Description 501---502
Outrigger Power Supply
503---505
Outrigger Solenoid Control
506
Outrigger Control Circuit - Left Front Jack
507
Outrigger Control Circuit - Left Front Beam
508
Outrigger Control Circuit - Right Front Beam
509
Outrigger Control Circuit - Right Front Jack
510
Outrigger Control Circuit - Right Rear Jack
511
Outrigger Control Circuit - Right Rear Beam
512
Outrigger Control Circuit - Left Rear Beam
513
Outrigger Control Circuit - Left Rear Jack
514
Outrigger Control Circuit - Retract
515
Outrigger Control Circuit - Extend
516---518
Outrigger Directional/Flow Divider Valve Supply
519
Hydraulic Reservoir Pressure/Fine Metering
520
Two-Speed Hoist
521
Free-Fall Valve
522
Axle Oscillator Control
523
Combination Steering Control
524---525
Four-Wheel Drive Control
526
Reserve Air Control
527
Pump Disconnect
528
Oscillation Override
529
Remote Steering Control
530
Remote Steering Control (Rear Winch Up*)
531
Remote Steering Control (Rear Winch Down*)
532
Remote Steer Directional & Diverter Valve Supply (Front Winch Up*)
533
Remote Steer Directional & Diverter Valve Supply (Front Winch Down*)
534
Remote Steer Directional & Diverter Valve Supply (Swing Left*)
535
Telescope Override (Swing Right*)
536
Blocking Valve Control
537
Hydraulic Pin Puller Control (Boom Hoist Up*)
538
Hydraulic Pin Puller Control (Boom Hoist Down*)
539---540
Hydraulic Pin Puller Control
541---542
Hydraulic Pin Puller Power Supply
543
Two-Speed Swing
544
Two-Speed Travel
* Alternate description for some cranes with serial number prefixes J8 or R3 only.
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Category 5 --- Continued Equipment Control Circuits (Also See Category 7) Wire Number Description 545---548
Two-Speed Planetary
549
House Lock Disengage
550---551
Cab Motion
552
Boom Hoist Cutout
553
Drum Hoist Cutout
554
Boom Lowering Cutout
555
Travel/Third Drum Selector
556
House Lock Engage
557
Cab Motion
558
Drum Cutout Override
559
Boom Cutout Override
560---563
Axle Control
564
Tower Balance Arm Cutout By
565---566
Fairleader Control
567
Cab Pressure Control
568
Hoist Convertor Control
569
Boom Hoist Brake Dump
570
Boom Hoist Cutout
571
Travel/Third Drum Selector
572---573
Drum By
574
Automatic Brake
575
Park Brake
576
Drum Lowering Cutout
577
Two-Speed Hoist
578
Control Override
579
Remote Control
580
Accumulator Charge Pressure
581
Boom Hoist
582
Boom Telescope
583
Swing Lock
584---585
Boom Hoist Auxiliary
586
Swing Auxiliary
587---592
Outrigger Control
593---595
Blocking Valve
596---599
Free-Fall Equipment Control Circuits Continued As Category 7
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Category 6 Accessories Circuits Wire Number Description 601---602
Heater
603---604
Defroster
605---607
Windshield Wiper
608---610
Windshield Washer
611
Cab Vent Fan
612---613
Air Conditioner
614---615
Propane Engine Preheater
616
Air Dryer
617
Cigarette Lighter
618---621
Air Conditioner
622
12 Volt Accessory Outlet
623
Remote Control Mirror
624
Heater
625
Seat Control
626
AM/FM Radio
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Category 7 Equipment Control Circuits (Also See Category 5) Wire Number Description 701
Free-Fall
702
Tow Winch - Out
703
Tow Winch - In
704
Load Sensing
705
Oil Cooler Control
706
Pump Disconnect
707
Rear Axle Steer Lock - Upper Control
708
Rear Axle Steer Unlock - Upper Control
709
Axle Oscillation Control
710---712
Axle Differential Lock
713
Rear Axle Steer Lock - Carrier Control
714
Rear Axle Steer Unlock - Carrier Control
715
Winch Interference Control
716
Steer Reversing
717
Park Brake
718
Tow Winch - Auxiliary
719
Rear Axle Steer Locking
720
Boom Telescope Control Box (Offset Fly Control*)
721
Boom Telescope Control Box (Offset Fly*)
722---723
Boom Telescope Control Box
724
Front Winch Disengage
725
Rear Winch Disengage
726
Steer Lock
727
Boom Hoist Pump Control
728
Winch Pump Control
729
Boom Hoist Winch Disengage
730
Lower Jacking/Upper Pilot Control
731
Counterweight Removal
732
Axle Oscillation Control
733
Anti-Lock Brake System (ABS) Controller
734
J1939 CAN 1 - High
735
J1939 CAN 1 - Low
736
J1939 CAN 1 - Shield
737
Boom Latching Power Supply
738---744
Boom Latching Control
745---746
Axle Oscillation Control
* Alternate description for some cranes with serial number prefixes J8 or R3 only.
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Category 7 --- Continued Equipment Control Circuits (Also See Category 5) Wire Number Description 747
Side Frame Control
748
J1939 CAN 2 - High
749
J1939 CAN 2 - Low
750
J1939 CAN 2 - Shield (Rear Winch Function Controller*)
751
J1939 CAN 3 - High (Swing Function Controller*)
752
J1939 CAN 3 - Low (Front Winch Function Controller*)
753
J1939 CAN 3 - Shield (Boom Hoist Function Controller*)
754
Auger
755
Boom Hoist Up
756
Boom Hoist Down
757
Swing Left
758
Swing Right
759
Front Winch Up
760
Front Winch Down
761
Rear Winch Up
762
Rear Winch Down
763
Horsepower Dissipation
764
Fly Extend
765
Fly Retract
766
Fan Pump Control
767
Front Winch Controller
768
Rear Winch Controller
769
Swing Controller
770
Steer Assist Circuit
771
Free Swing
772
Greaser
773
Winch, Boom Pressure Relief (Dump)
774
Fan Clutch Control
775
Hill Start Aid
790
IQAN Controller Ground
791
Right Forward Travel
792
Right Reverse Travel
793
Left Forward Travel
794
Left Reverse Travel
* Alternate description for some cranes with serial number prefixes J8 or R3 only.
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Category 8 Monitoring Circuits (Also See Category 3) Wire Number Description 801
Ammeter
802
Pyrometer Temperature
803---804
Instrument Power Supply
805
Throttle Indicator
806
Load Moment Indicator (LMI) External Light Bar - Red
807
Load Moment Indicator (LMI) External Light Bar - Amber
808
Load Moment Indicator (LMI) External Light Bar - Green
809---810
Load Moment Indicator (LMI) External Light Bar Power Supply
811
Load Moment Indicator (LMI) Display Data Signal - AA傆
812
Load Moment Indicator (LMI) Display Data Signal - AB傆
813
Load Moment Indicator (LMI) Display Reset Signal
814
Load Moment Indicator (LMI) Display Power Supply
815
Load Moment Indicator (LMI) Display Ground
816
Load Moment Indicator (LMI) Shield
817
Load Moment Indicator (LMI) Reeling Drum & Anti-Two Block (ATB)
818
Four-Wheel Drive Engaged Indicator
819
Load Moment Indicator (LMI) By
820
Load Moment Indicator (LMI) Counterweight Sensing
821
Suspension Height Indicator
822
Anemometer
823
Outrigger Length Reel - Left Front Beam
824
Outrigger Length Reel - Right Front Beam
825
Outrigger Length Reel - Left Rear Beam
826
Outrigger Length Reel - Right Rear Beam
827
Swing Sensor
828
Seat Belt Indicator
829
Primary Steer Indication - Front
830
Secondary Steer Pump Indication - Rear
831
Tilt Sensor
832---833
Display/Monitor Supply
834
USB Port
835
Ground Driven Steer Pump Indication
836
Camera System
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Electrical System Schematic Symbols Switches
Senders
Maintained Normally Open
Pressure Sensitive
Maintained Normally Closed Liquid Level
Momentary Mechanically Actuated
Thermal Sensitive
Pressure Sensitive Opens As Pressure Rises Speedometer
Pressure Sensitive Closes As Pressure Rises Momentary Normally Open Momentary Normally Closed
Relays
Heating Element
Coil s NO
Make Before Break
Diode Coil
Mechanically Linked
s NO
Variable Resistance With Off Position
s NC s Common
Closes With Increase In Flow
Circuit Protectors
Opens With Increase In Flow
Fuse Circuit Breaker
Audible Signals
Valve Solenoid
Ground Chassis
Gauge
Lights Manual Reset
Buzzer
Circuit Breaker
Flasher
Gauge Thermal Reset
Battery Horn, Backup Alarm
Motor
Head, Tail, Dome, Brake, Etc.
Figure 3 Electrical Symbols Legend 13 of 14
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Electrical System Schematic Symbols Node
Bus Bar (Fuse Block)
Shielded/Twisted Wire
Thermostat
Sensor PNP
NO
Figure 3 Electrical Symbols Legend -- Continued
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Wire Location in Circuit
1
2 3
Category
Color 6
Circuit Designation Example: Wire number 243---A BLU indicates: Category 2, circuit 43, conductor A, blue wire. Figure 1 Wire Number Explanation
Electrical System Wire Identification Code In order to simplify electrical troubleshooting techniques, the electrical system of this crane uses a “Wire Identification Code”. The following information outlines the “Code” used to identify the wires in a crane’s electrical system.
Wire Harness Each wire, in any given wire harness within the electrical system, has a colored insulating coating. This coating is labeled with a wire number. The color and wire number, when fully understood, will allow the positive identification of a wire and its specific use in the circuit. Each wire has four basic identifying elements. Refer to Figure 1.
Category The first character of each wire number corresponds to a general category. Seven basic categories exist and are described as follows: 1. Category 1: Primary Power (Red or Orange) 100 series numbers are used to identify wires which are used to provide the originating source of power to all circuits within the electrical system.
1. 2. 3.
5
Circuit Breaker Thermal Switch Wire Connector
4 4. 5. 6.
Indicator Light Buzzer Ground Bolt
Figure 2 Wire Number Suffix Sequence 2. Category 2: Engine and Transmission Control (Blue) 200 Series numbers are used to identify wires in circuits used in the operation and control of the engine and transmission. 3. Category 3: Monitoring Group (Yellow) 300 series numbers are used to identify wires in circuits used in monitoring crane operation. Circuits that contain gauges or instrumentation are included in this category. (See Category 8 also.) 4. Category 4: Lighting and Horns (Green) 400 Series numbers are used to identify wires in the interior and exterior lighting circuits of the crane, as well as the horn and back up alarm circuits. 5. Category 5: Equipment Control (Brown) 500 Series numbers are used to identify wires in circuits concerned with the operation and control of functions that are unique to the crane. (See Category 7 also.) 6. Category 6: Accessories (Violet) 600 series numbers are used to identify wires in circuits concerned with the operation and control of operator accessory equipment such as heaters, defrosters, windshield wipers, etc. 7. Category 7: Equipment Control (Brown) 700 series numbers are simply an extension of Category 5. (See Category 5 also.) 8. Category 8: Monitoring Group (Yellow) 800 series numbers are simply an extension of Category 3. (See Category 3 also.)
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Wire Location In Circuit The fourth character of the wire number is a letter suffix which is used to relate a particular wire’s location relative to the rest of the circuit. The letter suffix, which is assigned sequentially, generally starts from the circuits power source, changes at each of the circuits working components, and ends once a wire reaches ground potential. Refer to Figure 2. Note: The letter suffix does not change when two wires are ed by a wire connector.
Color The color of the wire, like the wire number, has a very specific meaning. It can be used to identify, as well as, describe the function of the wire in a given circuit. All wires are colored according to the category that defines their corresponding circuit, with the following exceptions: 1. Wires which are directly connected to the system power source, and are at constant battery potential, are colored RED. These wires remain “HOT” at all times. 2. Wires that are at battery potential only when the ignition switch is in the “ON” position are colored ORANGE.
Category 1 Primary Power Circuits Wire Number Description 000
Spare Collector Ring Connection
101
Battery Charge
102---110
Battery Distribution
111---119
Distribution Controlled By Main Switch
120---121
Main Switch Solenoid
122---123
Chassis Ground
124
Wheel Anti-Lock Power Supply
125
Remote Control Power Supply
126---127
Distribution Controlled By Main Switch
128---129
Ground
130
Battery Distribution
131
Distribution Controlled By Upper Switch
132
Controller Power
133---137
Ground
138
24 Volt Power
139---140
Ground
141---143
Distribution Controlled By Transmission
144
Trailer ABS Power Supply
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Service Manual 3. Wires that are at constant ground potential are colored BLACK.
Circuit Designation The second and third characters of each wire number specifically identify the circuit within any given category. See the category listings found later in this document for specific wire number designations. Note: All wire numbers listed in category listings are typical and may not necessarily apply to one given crane.
Jumper Wires A jumper wire is defined as any wire not included in a wire harness. These wires are not labeled with a wire number. They are labeled however, with the actual wire part number which can be used to order a replacement wire. All jumper wires will be colored white with the same exceptions, red, orange and black as described for the wire harness.
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Category 2 Engine And Transmission Control Circuits Wire Number Description 201---203
Starter Solenoid
204---205
Starter Motor
206---207
Engine Stop
208---209
Emergency Engine Stop
210
Throttle Lock
211
Throttle Control
212
Engine Torque Limit
213
Fuel Cooler
214
EMP Air Pump
215
Idle Validation
216---229
Other Engine Controls
230
Check/Stop Engine Power
231---240
Transmission Shift Select
241---242
Master Clutch Control
243
Ether Control
244
Outrigger Throttle Control
245
High Idle Solenoid
246---254
Torque Convertor Control
255---256
Speed Limiting
257
Fuel Heater
258---267
Other Transmission Controls
268
Throttle Actuator
269
Other Control
270
Throttle Supply
271
Intake Air Heater
272
Other Control
273---276
Transmission Supply
277
Transmission Cooler Fan
278
J1939 CAN High
279
J1939 CAN Low
280
J1939 CAN Shield
281
RPM Limiting
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Category 3 Monitoring Circuits (Also See Category 8) Wire Number Description 301---302
Instrument Supply
303---304
Fuel Level
305---306
Engine Oil Pressure
307---308
Engine Coolant Temperature
309
Fuel Pressure
310
Voltmeter
311---312
Tachometer/Engine Speed Indicator
313
Hourmeter
314
Transmission Oil Temperature
315---316
Engine Oil Temperature
317---318
Torque Convertor Oil Pressure
319
Speedometer
320---321
Hydraulic Oil Temperature
322---326
Hydraulic Filter Indicator
327
Low Hydraulic Charge Pressure
328---329
Master Clutch Indicator Light
330
Gear Case Lube Indicator
331---334
Drum Rotation Indicator
335
Swing Lock Indicator
336---338
Low Air Pressure Indicator
339
Auxiliary Steer Indicator
340
Emergency Brake Indicator
341
Skid-Trol Power & Fault Indicator
342
Boom Length Indicator
343
Hoist Brake Alarm
344
Cab Control Shutdown Indicator
345
Dual Function Instrument Supply
346
Load Moment Indicator - Power Supply
347
Load Moment Indicator - Logic Control
348
Load Moment Indicator - Swing Rotation Indicator
349
Load Moment Indicator --- Function Interlock & Alarm
350
Wheel Anti-Lock System Fault Indicator
351
Remote Control Brake Pressure Monitoring
352
Bumper Outrigger Overload Alarm
353---356
Drum Rotation Indicator
357
Power “ON” Indicator
358
Anti-Two Block
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Category 3 --- Continued Monitoring Circuits (Also See Category 8) Wire Number Description 359---360
Drum Limit Light
361
Engine Overheat Alarm
362---363
Air Pressure
364
Free-Fall System Indicator
365
Oil Level Alarm
366
Ladder Rung Alignment Indicator
367
Open Door Indicator
368
Controller Power Indicator - Base
369
Controller Power Indicator - Platform
370
Outrigger Interlock Indicator - Left Side
371
Outrigger Interlock Indicator - Right Side
372
Over Front Indicator And Warning Buzzer
373
Oil Pressure Alarm
374
Load Moment Indicator - Swing Rotation Indicator
375---376
Low Air Pressure Indicator
377---378
Free-Fall System
379
Engine Monitor - Upper
380
Light Test
381
Position Indicator
382---383
Engine Monitor - Carrier
384---388
Swing Potentiometer Indicator
389
Emergency Brake Boost Flow Indicator
390
Counterweight Removed/Attached Indicator
391
Auxiliary Steer Indicator
392
Suspension Lockout Indicator
393---395
Rear Axle Steer Lock Pin Indicator
396
Park Brake Indicator
397---398
Axle Differential Lock Indicator
399
Steer Indicator Gauge Monitoring Circuits Continued As Category 8
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Category 4 Lighting And Horn Circuits Wire Number Description 401
Distribution Controlled By Light Switch
402---403
Headlights
404---405
Clearance Lights
406
Tail And Clearance Lights - Carrier Left Side
407
Tail And Clearance Lights - Carrier Right Side
408
Backup Lights And Alarm
409
Backup Solenoid
410
Brake Light Switch(es)
411---412
Interior Cab Lights
413
Emergency And Turn Flasher
414
Front Turn Light - Carrier Right Side
415
Rear Turn And Stop - Carrier Right Side
416
Front Turn Light - Carrier Left Side
417
Rear Turn And Stop - Carrier Left Side
418---422
Exterior Lights
423
Tower Obstruction Light
424
Interior House Lights
425---426
Horn
427
Instrument Lights
428
Light Solenoid
429---430
Travel Alarm
431
Boom Telescope Override
432
Lift And Tilt Alarm
433
Instrument Lights
434
Rotating Beacon
435
Swing Alarm
436
Backup Light
437
Backup Alarm
438
Brake Light Switch
439
Emergency And Turn Signal Flasher
440
Tail And Clearance Lights - Upper
441
Front Turn Light - Upper Right Side
442
Rear Turn And Stop - Upper Right Side
443
Front Turn Light - Upper Left Side
444
Rear Turn And Stop - Upper Left Side
445
Daytime Running Lights
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Service Manual
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Category 5 Equipment Control Circuits (Also See Category 7) Wire Number Description 501---502
Outrigger Power Supply
503---505
Outrigger Solenoid Control
506
Outrigger Control Circuit - Left Front Jack
507
Outrigger Control Circuit - Left Front Beam
508
Outrigger Control Circuit - Right Front Beam
509
Outrigger Control Circuit - Right Front Jack
510
Outrigger Control Circuit - Right Rear Jack
511
Outrigger Control Circuit - Right Rear Beam
512
Outrigger Control Circuit - Left Rear Beam
513
Outrigger Control Circuit - Left Rear Jack
514
Outrigger Control Circuit - Retract
515
Outrigger Control Circuit - Extend
516---518
Outrigger Directional/Flow Divider Valve Supply
519
Hydraulic Reservoir Pressure/Fine Metering
520
Two-Speed Hoist
521
Free-Fall Valve
522
Axle Oscillator Control
523
Combination Steering Control
524---525
Four-Wheel Drive Control
526
Reserve Air Control
527
Pump Disconnect
528
Oscillation Override
529
Remote Steering Control
530
Remote Steering Control (Rear Winch Up*)
531
Remote Steering Control (Rear Winch Down*)
532
Remote Steer Directional & Diverter Valve Supply (Front Winch Up*)
533
Remote Steer Directional & Diverter Valve Supply (Front Winch Down*)
534
Remote Steer Directional & Diverter Valve Supply (Swing Left*)
535
Telescope Override (Swing Right*)
536
Blocking Valve Control
537
Hydraulic Pin Puller Control (Boom Hoist Up*)
538
Hydraulic Pin Puller Control (Boom Hoist Down*)
539---540
Hydraulic Pin Puller Control
541---542
Hydraulic Pin Puller Power Supply
543
Two-Speed Swing
544
Two-Speed Travel
* Alternate description for some cranes with serial number prefixes J8 or R3 only.
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Service Manual
Category 5 --- Continued Equipment Control Circuits (Also See Category 7) Wire Number Description 545---548
Two-Speed Planetary
549
House Lock Disengage
550---551
Cab Motion
552
Boom Hoist Cutout
553
Drum Hoist Cutout
554
Boom Lowering Cutout
555
Travel/Third Drum Selector
556
House Lock Engage
557
Cab Motion
558
Drum Cutout Override
559
Boom Cutout Override
560---563
Axle Control
564
Tower Balance Arm Cutout By
565---566
Fairleader Control
567
Cab Pressure Control
568
Hoist Convertor Control
569
Boom Hoist Brake Dump
570
Boom Hoist Cutout
571
Travel/Third Drum Selector
572---573
Drum By
574
Automatic Brake
575
Park Brake
576
Drum Lowering Cutout
577
Two-Speed Hoist
578
Control Override
579
Remote Control
580
Accumulator Charge Pressure
581
Boom Hoist
582
Boom Telescope
583
Swing Lock
584---585
Boom Hoist Auxiliary
586
Swing Auxiliary
587---592
Outrigger Control
593---595
Blocking Valve
596---599
Free-Fall Equipment Control Circuits Continued As Category 7
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Category 6 Accessories Circuits Wire Number Description 601---602
Heater
603---604
Defroster
605---607
Windshield Wiper
608---610
Windshield Washer
611
Cab Vent Fan
612---613
Air Conditioner
614---615
Propane Engine Preheater
616
Air Dryer
617
Cigarette Lighter
618---621
Air Conditioner
622
12 Volt Accessory Outlet
623
Remote Control Mirror
624
Heater
625
Seat Control
626
AM/FM Radio
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Category 7 Equipment Control Circuits (Also See Category 5) Wire Number Description 701
Free-Fall
702
Tow Winch - Out
703
Tow Winch - In
704
Load Sensing
705
Oil Cooler Control
706
Pump Disconnect
707
Rear Axle Steer Lock - Upper Control
708
Rear Axle Steer Unlock - Upper Control
709
Axle Oscillation Control
710---712
Axle Differential Lock
713
Rear Axle Steer Lock - Carrier Control
714
Rear Axle Steer Unlock - Carrier Control
715
Winch Interference Control
716
Steer Reversing
717
Park Brake
718
Tow Winch - Auxiliary
719
Rear Axle Steer Locking
720
Boom Telescope Control Box (Offset Fly Control*)
721
Boom Telescope Control Box (Offset Fly*)
722---723
Boom Telescope Control Box
724
Front Winch Disengage
725
Rear Winch Disengage
726
Steer Lock
727
Boom Hoist Pump Control
728
Winch Pump Control
729
Boom Hoist Winch Disengage
730
Lower Jacking/Upper Pilot Control
731
Counterweight Removal
732
Axle Oscillation Control
733
Anti-Lock Brake System (ABS) Controller
734
J1939 CAN 1 - High
735
J1939 CAN 1 - Low
736
J1939 CAN 1 - Shield
737
Boom Latching Power Supply
738---744
Boom Latching Control
745---746
Axle Oscillation Control
* Alternate description for some cranes with serial number prefixes J8 or R3 only.
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Category 7 --- Continued Equipment Control Circuits (Also See Category 5) Wire Number Description 747
Side Frame Control
748
J1939 CAN 2 - High
749
J1939 CAN 2 - Low
750
J1939 CAN 2 - Shield (Rear Winch Function Controller*)
751
J1939 CAN 3 - High (Swing Function Controller*)
752
J1939 CAN 3 - Low (Front Winch Function Controller*)
753
J1939 CAN 3 - Shield (Boom Hoist Function Controller*)
754
Auger
755
Boom Hoist Up
756
Boom Hoist Down
757
Swing Left
758
Swing Right
759
Front Winch Up
760
Front Winch Down
761
Rear Winch Up
762
Rear Winch Down
763
Horsepower Dissipation
764
Fly Extend
765
Fly Retract
766
Fan Pump Control
767
Front Winch Controller
768
Rear Winch Controller
769
Swing Controller
770
Steer Assist Circuit
771
Free Swing
772
Greaser
773
Winch, Boom Pressure Relief (Dump)
774
Fan Clutch Control
775
Hill Start Aid
790
IQAN Controller Ground
791
Right Forward Travel
792
Right Reverse Travel
793
Left Forward Travel
794
Left Reverse Travel
* Alternate description for some cranes with serial number prefixes J8 or R3 only.
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Service Manual
Category 8 Monitoring Circuits (Also See Category 3) Wire Number Description 801
Ammeter
802
Pyrometer Temperature
803---804
Instrument Power Supply
805
Throttle Indicator
806
Load Moment Indicator (LMI) External Light Bar - Red
807
Load Moment Indicator (LMI) External Light Bar - Amber
808
Load Moment Indicator (LMI) External Light Bar - Green
809---810
Load Moment Indicator (LMI) External Light Bar Power Supply
811
Load Moment Indicator (LMI) Display Data Signal - AA傆
812
Load Moment Indicator (LMI) Display Data Signal - AB傆
813
Load Moment Indicator (LMI) Display Reset Signal
814
Load Moment Indicator (LMI) Display Power Supply
815
Load Moment Indicator (LMI) Display Ground
816
Load Moment Indicator (LMI) Shield
817
Load Moment Indicator (LMI) Reeling Drum & Anti-Two Block (ATB)
818
Four-Wheel Drive Engaged Indicator
819
Load Moment Indicator (LMI) By
820
Load Moment Indicator (LMI) Counterweight Sensing
821
Suspension Height Indicator
822
Anemometer
823
Outrigger Length Reel - Left Front Beam
824
Outrigger Length Reel - Right Front Beam
825
Outrigger Length Reel - Left Rear Beam
826
Outrigger Length Reel - Right Rear Beam
827
Swing Sensor
828
Seat Belt Indicator
829
Primary Steer Indication - Front
830
Secondary Steer Pump Indication - Rear
831
Tilt Sensor
832---833
Display/Monitor Supply
834
USB Port
835
Ground Driven Steer Pump Indication
836
Camera System
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Electrical System Schematic Symbols Switches
Senders
Maintained Normally Open
Pressure Sensitive
Maintained Normally Closed Liquid Level
Momentary Mechanically Actuated
Thermal Sensitive
Pressure Sensitive Opens As Pressure Rises Speedometer
Pressure Sensitive Closes As Pressure Rises Momentary Normally Open Momentary Normally Closed
Relays
Heating Element
Coil s NO
Make Before Break
Diode Coil
Mechanically Linked
s NO
Variable Resistance With Off Position
s NC s Common
Closes With Increase In Flow
Circuit Protectors
Opens With Increase In Flow
Fuse Circuit Breaker
Audible Signals
Valve Solenoid
Ground Chassis
Gauge
Lights Manual Reset
Buzzer
Circuit Breaker
Flasher
Gauge Thermal Reset
Battery Horn, Backup Alarm
Motor
Head, Tail, Dome, Brake, Etc.
Figure 3 Electrical Symbols Legend 13 of 14
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Service Manual
Electrical System Schematic Symbols Node
Bus Bar (Fuse Block)
Shielded/Twisted Wire
Thermostat
Sensor PNP
NO
Figure 3 Electrical Symbols Legend -- Continued
14 of 14
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