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Lull 944E-42 Manuals
Manuals and User Guides for Lull 944E-42. We have
2
Lull 944E-42 manuals available for free PDF download: Service Manual
Lull 944E-42 Service Manual (844 pages)
Brand:
Lull
| Category:
Forklifts
| Size: 63 MB
Table of Contents
Section Contents
3
Table of Contents
3
Subject
4
Safety Practices
8
Introduction
8
Owners/Operators Manual
8
Training Mechanics as Operators
9
Safety Information
9
Safety Alert Symbol
9
Accident Prevention Tag Usage
10
Hazard Statements
10
Safety Instructions
11
Personal Hazards
11
Equipment Hazards
11
Operational Hazards
12
Emergency Exit Rear Window
12
General Hazards
12
Hazard/Emergency Information Signs
13
General Information, Specifications and Maintenance
16
42 / 944E-42 Component Terminology
17
Introduction
18
Torques
19
Metric Conversion Factors
21
Specifications
24
Axles (Differential Housings)
37
Fluids, Lubricants and Capacities
37
Wheel Ends
37
Engine
38
Lubrication Points (Grease Fittings)
38
Transfer Case
39
Transmission
39
Drive Shaft Splines
40
General Anti-Corrosion
40
Cleaning
41
Paint
41
Thread Locking Compound
41
Hose and Tube Inspection
42
Hose and Tube Installation
42
Hoses and Tubes
42
Replacement
42
Bearing Cleaning
43
Bearing Removal
43
Bearings
43
Pressure Testing and Adjustment
43
After Brake System Service
44
After Electrical/Electronic Component Service
44
After Fuel System Service
44
After Hydraulic Component Service
44
After Service Startup
44
After Service Startup and Checks
44
After Axle Service
45
After Boom Service
45
After Engine Service
45
After Tire and Wheel Service
45
After Transmission Service or Replacement
45
Section 3 Boom
47
Boom System Component Terminology
48
Boom Assembly Maintenance
49
Boom System
49
Boom System Description
49
Boom System Operation
49
Inner Boom Replacement
50
Intermediate Boom Replacement
64
Outer Boom Replacement
68
Boom Chain Inspection
74
Boom Chains
74
Boom Chain Tension Check
81
Chain Lubrication
81
Boom Chain Tension Adjustment
82
Boom Extend and Retract Chains Removal and Replacement
85
Boom Wear Pad Replacement
90
Boom Wear Pads
90
Boom Wear Pad Lubrication
92
Connecting to an Attachment
93
Disconnecting from an Attachment
93
Quick Attach Assembly
93
Quick Attach Disassembly
94
Quick Attach Installation
95
Attachment Tilt Cylinder Removal
96
Troubleshooting
97
Section 4 Cab and Covers
103
Operator's Cab and Covers Component Terminology
104
Operator's Cab
105
Operator's Cab Description
105
Serial Number Decal
105
Open Cab Components
106
Seat and Seat Belt
106
Select Lever
107
Steering Column and Valve Replacement
109
Steer Select Valve
111
Brake Valve and Service Brake Pedal
114
Throttle Pedal Replacement
117
Throttle Position Sensor Replacement (944E-42 Only)
118
Front, Rear and Frame Sway Joystick Assembly Replacement
120
Single Joystick Assembly Replacement (Optional)
122
Electrical Components
123
Enclosed Cab Components
125
Enclosed Cab (Optional) Components
126
Front Windshield Wiper Motor
126
Front Windshield Wiper Switch
126
Heater/Defroster System
126
Rear Wiper Switch/Motor
126
Skylight Wiper Motor
126
Skylight Wiper Washer & Rear Window Washer Switch
126
Windshield Washer Control
126
Windshield/Skylight/Rear Wiper Washer Reservoir W/Pump
126
Cab Removal
130
Cab Installation
133
Valve Plate
136
Valve Plate Removal
136
Valve Plate Installation
137
Access Panel and Cover Replacement
138
Access Panels and Covers
138
Engine Hood
140
Section 5 Axles, Drive Shafts, Wheels, Tires and Brakes
145
Axle, Drive Shaft and Wheel Component Terminology
146
Axles, Drive Shafts, Wheels, Tires and Brakes
146
Axle Assemblies
147
Axle Assembly Description
147
Axle Assembly Operation
147
General Information
147
Axle Maintenance
148
Axle Serial Number Plate
148
Axle Specifications
148
Axle Replacement
149
Axle Assembly and Drive Shaft Troubleshooting
156
Axle Service and Troubleshooting
156
Axle Internal Component Troubleshooting
159
Drive Shaft Inspection and Service
160
Drive Shaft Maintenance
160
Drive Shaft Removal
160
Drive Shafts
160
Drive Shaft Installation
161
Wheels and Tires
163
Removing Wheel and Tire Assembly from Vehicle
164
Wheel Cleaning
165
Wheel Inspection and Replacement
165
Installing Wheel and Tire Assembly Onto Vehicle
166
Tires
167
Brake Disc Inspection
170
Brakes
170
Section 6 Transmission: Zf 4Wg-92/98 Tsc & Transfer Case: Zf Tb92-I4
175
Transmission Assembly Component Terminology
176
Transmission Description
177
Transmission Operation
177
Transmission Serial Number
177
Maintenance Introduction
178
Transmission General Specifications
178
Transmission Lubrication
178
Transmission Maintenance
178
Transmission Performance Specifications
178
Transmission Specifications
178
Transmission-Related Fuse/Relay Ratings
178
Transmission Maintenance Schedule
179
Transmission Removal
180
Transmission Replacement
180
Transmission Inspection and Internal Repair
184
Transmission Installation
184
After Transmission Service or Replacement
188
Transmission Troubleshooting
189
Troubleshooting
189
Towing a Disabled Vehicle
192
Transfer Case Component Terminology
193
General Information
194
Serial Number Plate
194
Transfer Case
194
Transfer Case Description
194
Transfer Case Operation
194
Transfer Case Specifications
194
Further Information
195
Technical Data
195
Transfer Case Inspection and Service
195
Transfer Case Maintenance
195
Transfer Case Removal
196
Internal Transfer Case Repair
197
Transfer Case Installation
197
Transfer Case Troubleshooting
198
Troubleshooting
198
Transfer Case Internal Component Troubleshooting
200
Section 7 Engine: Cummins 4Bt 3.9, B4.5T and Qsb 4.5T
201
Disclaimer and Scope
203
Engine: Cummins 4BT 3.9, B4.5T and QSB 4.5T
203
Introduction
203
Component Terminology
204
Safety Information
205
Capscrews and Metric Parts
207
Cleanliness
207
Engine Serial Number
207
Gaskets and O-Rings
207
Left and Right Sides of the Engine
207
Specifications and Maintenance Information
207
Standard Practices
207
Engine Cooling System
208
Radiator Pressure Cap
208
Thermostat Replacement
208
Drain and Flush Radiator
212
Radiator, Transmission Oil Cooler and Hydraulic Oil Cooler Replacement
214
Engine Electrical System
223
Fuel System
223
Diesel Fuel
224
Fuel Tank
224
Fuel Level Sender and Gauge
225
Fuel Lift Pump Testing
226
Bleeding Air from the Fuel System
227
Fuel Filter Replacement
227
Fuel Injectors
228
After Fuel System Service
229
Engine Exhaust System
230
Exhaust System Removal
230
Exhaust System Installation
231
Engine Removal
232
Engine Replacement
232
Engine Disassembly, Inspection and Service
240
Engine Installation
241
Engine Storage
249
Troubleshooting
250
Section 8 Hydraulic System
251
Hydraulic Component Terminology
255
Hydraulic System
255
Safety Information
256
Hydraulic Fluid
257
Specifications
257
Hose, Tube, Line and Fitting Replacement
258
Hoses, Tube Lines, Fittings, Etc
258
Replacement Considerations
258
Snap Lock Fittings & Special Tools
258
Hydraulic Pressure Diagnosis
260
Pressure Checks and Adjustments
261
Hydraulic System Testing
262
Hydraulic Testing (SN 18460 and Before, Dual Joystick, 644E Only)
262
Hydraulic Testing (SN 18461 Thru 18927, Dual Joystick, 644E Only)
266
(SN 18928 Thru 20118, 0160002519 Thru 0160003087, Dual Joystick, 644E Only)
270
Hydraulic Testing
270
Hydraulic Testing (SN 0160003088 and After, Dual Joystick, 644E Only)
274
(SN 18928 Thru 20118, 0160002519 Thru 0160003087 Single Joystick, 644E Only)
278
Hydraulic Testing
278
Hydraulic Testing (SN 0160003088 and after Single Joystick, 644E Only)
282
Hydraulic Testing (SN 18927 and Before, Dual Joystick, 944E Only)
286
(SN 18928 Thru 20123, 0160002514 Thru 0160003085, Dual Joystick, 944E Only)
290
Hydraulic Testing
290
Hydraulic Testing (SN 0160003086 and After, Dual Joystick, 944E Only)
294
(SN 18928 Thru 20123, 0160002514 Thru 0160003085, Single Joystick, 944E Only)
298
Hydraulic Testing
298
Hydraulic Testing (SN 0160003086 and after Single Joystick, 944E Only)
302
Hydraulic Circuits and Troubleshooting
305
Pump & Cooling Circuit & Troubleshooting (Dual Joystick, SN 18460 and Before)
306
Pump & Cooling Circuit & Troubleshooting (Dual Joystick, SN 18461 and After)
308
Pump & Cooling Circuit & Troubleshooting (Single Joystick)
310
Joystick Circuit & Troubleshooting (Front - Dual Joystick)
312
Joystick Circuit & Troubleshooting (Rear - Dual Joystick)
314
Joystick Circuit & Troubleshooting (Single Joystick)
316
Park Brake Circuit & Troubleshooting
318
Service Brake Circuit & Troubleshooting
320
Emergency Towing Park Brake Release Circuit & Troubleshooting
322
Boom Extend Circuit & Troubleshooting (Dual Joystick)
324
Boom Extend Circuit & Troubleshooting (Single Joystick)
326
Boom Retract Circuit & Troubleshooting (Dual Joystick)
328
Boom Retract Circuit & Troubleshooting (Single Joystick)
330
Boom Lift Circuit & Troubleshooting (Dual Joystick)
332
Boom Lift Circuit & Troubleshooting (Single Joystick)
334
Boom Lower Circuit & Troubleshooting (Dual Joystick)
336
Boom Lower Circuit & Troubleshooting (Single Joystick)
338
Frame Sway (Left), Stabilizer Circuit & Troubleshooting (SN 18460 and Before)
340
Frame Sway (Left), Stabilizer Circuit & Troubleshooting (SN 18461 and After)
342
Frame Sway (Right), Stabilizer Circuit & Troubleshooting ( SN 18460 and Before)
344
Frame Sway (Right), Stabilizer Circuit & Troubleshooting (SN 18461 and After)
346
Attachment Tilt (Down), Slave Cylinder Circuit & Troubleshooting (Dual Joystick)
348
Attachment Tilt (Down), Slave Cylinder Circuit & Troubleshooting (Single Joystick)
350
Attachment Tilt (Up), Slave Cylinder Circuit & Troubleshooting (Dual Joystick)
352
Attachment Tilt (Up), Slave Cylinder Circuit & Troubleshooting (Single Joystick)
354
Transfer Carriage Cylinder Extend (Carriage Back) Circuit & Troubleshooting (Dual Joystick)
356
Transfer Carriage Cylinder Extend (Carriage Back) Circuit & Troubleshooting (Single Joystick)
358
Transfer Carriage Cylinder Retract (Carriage Fwd) Circuit & Troubleshooting (Dual Joystick)
360
Transfer Carriage Cylinder Retract (Carriage Fwd) Circuit & Troubleshooting (Single Joystick)
362
Front-Wheel Steering Circuit (Left Turn) & Troubleshooting
364
Front-Wheel Steering Circuit (Right Turn) & Troubleshooting
366
Four-Wheel Steering Circuit (Left Turn) & Troubleshooting
368
Four-Wheel Steering Circuit (Right Turn) & Troubleshooting
370
Crab Steering Circuit (Left Turn) & Troubleshooting
372
Crab Steering Circuit (Right Turn) & Troubleshooting
374
Auxiliary Hydraulic Circuit & Troubleshooting (Male Coupler Pressurized - Dual Joystick) (644E-42, SN 20118 & Before, SN 0160002519 Thru 0160003108) (944E-42, SN 20123 & Before, SN 0160002514 Thru 0160003106)
376
Auxiliary Hydraulic Circuit & Troubleshooting (Male Coupler Pressurized - Dual Joystick) (644E-42, SN 0160003109 & After) (944E-42, SN 0160003107 & After)
378
Auxiliary Hydraulic Circuit & Troubleshooting (Male Coupler Pressurized - Single Joystick) (644E-42, SN 20118 & Before, SN 0160002519 Thru 0160003108) (944E-42, SN 20123 & Before, SN 0160002514 Thru 0160003106)
380
Auxiliary Hydraulic Circuit & Troubleshooting (Male Coupler Pressurized - Single Joystick) (644E-42, SN 0160003109 & After) (944E-42, SN 0160003107 & After)
382
Auxiliary Hydraulic Circuit & Troubleshooting (Female Coupler Pressurized - Dual Joystick) (644E-42, SN 20118 & Before, SN 0160002519 Thru 0160003108) (944E-42, SN 20123 & Before, SN 0160002514 Thru 0160003106)
384
Auxiliary Hydraulic Circuit & Troubleshooting (Female Coupler Pressurized - Dual Joystick) (644E-42, SN 0160003109 & After) (944E-42, SN 0160003107 & After)
386
Auxiliary Hydraulic Circuit & Troubleshooting (Female Coupler Pressurized - Single Joystick) (644E-42, SN 20118 & Before, SN 0160002519 Thru 0160003108) (944E-42, SN 20123 & Before, SN 0160002514 Thru 0160003106)
388
Auxiliary Hydraulic Circuit & Troubleshooting (Female Coupler Pressurized - Single Joystick) (644E-42, SN 0160003109 & After) (944E-42, SN 0160003107 & After)
390
Auxiliary Hydraulic Pressure Release Circuit & Troubleshooting (Dual Joystick) (644E-42, SN 20118 & Before, SN 0160002519 Thru 0160003108) (944E-42, SN 20123 & Before, SN 0160002514 Thru 0160003106)
392
Auxiliary Hydraulic Pressure Release Circuit & Troubleshooting (Single Joystick) (644E-42, SN 20118 & Before, SN 0160002519 Thru 0160003108) (944E-42, SN 20123 & Before, SN 0160002514 Thru 0160003106)
394
Joystick Circuit Description (Dual Joystick)
396
Joystick Circuit Description (Single Joystick)
396
Pump and Cooling Circuit Description (Dual Joystick)
396
Pump and Cooling Circuit Description (Single Joystick)
396
Brake Circuit Description
397
Boom Extend/Retract Circuit Description (Dual Joystick)
398
Boom Extend/Retract Circuit Description (Single Joystick)
399
Boom Lift/Lower Circuit Description (Dual Joystick)
400
Boom Lift/Lower Circuit Description (Single Joystick)
401
Frame Sway Circuit Description
402
Attachment Tilt and Slave Circuit Description (Dual Joystick)
403
Attachment Tilt and Slave Circuit Description (Single Joystick)
404
Transfer Carriage Circuit Description (Dual Joystick)
405
Transfer Carriage Circuit Description (Single Joystick)
406
Steering Circuit Descriptions
408
Auxiliary Hydraulic Circuit Description (Dual Joystick)
411
Auxiliary Hydraulics Circuit Description (Single Joystick)
411
Auxiliary Hydraulic Pressure Release Valve
412
SN 0160002514 Thru 0160003106)
412
SN 0160002519 Thru 0160003108)
412
Four-Wheel Steer Indexing Procedure
413
Steer Indexing Procedures
413
Hydraulic Reservoir
414
Hydraulic Reservoir Replacement
415
Hydraulic System Pump
415
Pump Failure Analysis
416
Pump Replacement
416
Valve Plate Assembly
426
Valves and Manifolds
426
Main Control Valve
427
Joystick Valve (Dual Joystick)
435
Pilot Select Valve (Dual Joystick)
436
Joystick Valve (Single Joystick)
438
Single Joystick Pilot Select Valve
439
Frame Sway Joystick Valve
441
Auxiliary Hydraulic Pressure Release Valve (Early Production)
442
Auxiliary Hydraulic Pressure Release Valve (644E-42, Late Production Thru SN 20118, SN 0160002519 Thru 0160003108) (944E-42, Late Production Thru SN 20123, SN 0160002514 Thru 0160003106)
443
Service Brake Valve
448
Power Steering Valve
451
Steer Select Valve
452
Accumulator Charge/Secondary Function Valve
454
Accumulators
456
General Information
457
Pre-Charging Accumulator
458
Checking Pre-Charge
459
Accumulator Charge Troubleshooting
461
General Cylinder Assembly Instructions
462
General Cylinder Cleaning Instructions
462
General Cylinder Disassembly Instructions
462
Hydraulic Cylinders
462
Attachment Tilt Cylinder
463
Slave Cylinders
467
Extend/Retract Cylinder
471
Lift/Lower Cylinder
475
Frame Sway Cylinder
480
Stabilizer Cylinder
485
Steering Cylinders
489
Transfer Carriage Cylinder
490
Swing Carriage Cylinder (Optional)
494
Side Tilt Carriage Cylinder (Optional)
500
Section 9 Electrical System
509
Electrical Component Terminology
513
General Overview
513
General Overview (Open Cab Harness)
513
(644E-42, SN 20118 & Before, 0160002519 Thru 0160003689 - Vehicle Power Harness)
514
General Overview (644E-42, SN 0160003690 & after - Vehicle Power Harness)
515
General Overview (944E-42 ECM Vehicle Power & ECM Cab Harnesses)
516
General Overview (Vehicle Sensor Harness)
517
General Overview (Vehicle Control Harness)
518
General Overview (Vehicle Transmission Harness)
519
General Overview (Optional Single Joystick Harness)
520
General Overview (Optional Closed Cab Harness)
521
General Overview (Optional Roadlight Harness)
522
General Overview (Optional Worklight Harness)
523
General Overview (Vehicle Ground Strap Locations)
524
Battery
526
General
526
Service Warnings
526
Specifications
526
Effective Ground Connections
527
Grounding Straps
527
Wiring Harnesses
527
Disassembly
528
Inspection and Repair
528
Installation
528
Removal and Replacement
528
Wire Code and Color
528
Circuit Protection - Fuses
529
Fuses and Relays
529
Fuse and Relay Locations
530
Fuse and Relay Replacement
533
Electrical System Troubleshooting
535
Introduction
535
42, SN 20123 & Before, 0160002514 Thru 0160003881)
556
Main Electrical Schematic
556
Main Electrical Schematic (644E-42, SN 0160003878 & After, 944E-42, SN 0160003882 & After)
556
(SN 20118 & Before, 0160002519 Thru 0160003689)
560
42 Vehicle Power Harness Electrical Schematic
560
42 Vehicle Power Harness Electrical Schematic (SN 0160003690 & After)
561
42 ECM Vehicle Power & ECM Cab Harnesses Electrical Schematic
562
Optional 644E-42 Cold Start Electrical Schematic Legend
563
Optional 644E-42 Cold Start Electrical Schematic (SN 20118 & Before, 0160002519 Thru 0160003689)
564
Optional 644E-42 Cold Start Electrical Schematic (SN 0160003690 & After)
565
Optional Single Joystick (Early Production) Electrical Schematic Legend
566
Optional Single Joystick (Early Production) Electrical Schematic
567
Optional Single Joystick (Late Production) Electrical Schematic Legend
568
Optional Single Joystick (Late Production) Electrical Schematic
569
Optional Closed Cab Electrical Schematic Legend
570
Optional Closed Cab Electrical Schematic
571
Optional Roadlight Electrical Schematic Legend
572
Optional Roadlight Electrical Schematic
574
Optional Worklight Electrical Schematic Legend
576
Optional Worklight Electrical Schematic
577
42 Engine Start Circuit & Troubleshooting
578
42 Electronic Throttle Circuit & Troubleshooting
590
Charging Circuit & Troubleshooting
592
Dual Joystick - Auxiliary Hydraulic Circuit & Troubleshooting
594
Single Joystick - Auxiliary Hydraulic Circuit & Troubleshooting (Option)
598
Single Joystick - Transfer Carriage Extend/Retract Circuit & Troubleshooting (Option)
602
Single Joystick - Boom Extend/Retract Circuit & Troubleshooting (Option)
604
Single Joystick - Boom Lift/Lower Circuit & Troubleshooting (Option)
606
Single Joystick - Attachment Tilt Circuit & Troubleshooting (Option)
608
42 Engine with Optional Cold Start Circuit & Troubleshooting
612
Cab Heater & Air Conditioning Blower Motor Circuit & Troubleshooting
618
Air Conditioning Circuit & Troubleshooting
620
Front Wiper/Washer Circuit & Troubleshooting
622
Skylight Wiper/Washer, Rear Washer Circuit & Troubleshooting
624
Rear Wiper Circuit & Troubleshooting
626
Light Power Relay Circuit & Troubleshooting (Option)
628
Roadlight High Beam Circuit & Troubleshooting (Option)
630
Roadlight Low Beam Lights Circuit & Troubleshooting (Option)
632
Roadlight Parking Lights Circuit & Troubleshooting (Option)
634
Roadlight Hazard Lights Circuit & Troubleshooting (Option)
636
Roadlight Turn Signals Circuit & Troubleshooting (Option)
638
Roadlight Brake Lights Circuit & Troubleshooting (Option)
640
Flash High Beam Circuit & Troubleshooting (Option)
642
Roadlight Worklight Circuit & Troubleshooting (Option)
644
Worklight (Without Roadlight) Circuit & Troubleshooting (Option)
646
Transmission Gear Selection Troubleshooting
648
Transmission, Forward - First Gear Circuit
649
Transmission, Forward - Second Gear Circuit
650
Transmission, Forward - Third Gear Circuit
651
Transmission, Forward - Fourth Gear Circuit
652
Transmission, Reverse - First Gear Circuit
653
Transmission, Reverse - Second Gear Circuit
654
Transmission, Reverse - Third Gear Circuit
655
Dash Panel Warning Indicator Troubleshooting
656
Engine Alternator Charging Warning Indicator Troubleshooting
657
Engine Coolant Temperature Gauge Troubleshooting
658
Engine Oil Pressure Warning Indicator Troubleshooting
659
Engine Air Filter Restriction Warning Indicator Troubleshooting
660
Engine Tachometer & Hourmeter Indicator Troubleshooting
661
Transmission Temperature Warning Indicator Troubleshooting
662
Dual Hydraulic Oil Temperature Warning Indicator Troubleshooting
663
Hydraulic Oil Filter Restriction Warning Indicator Troubleshooting
664
Park Brake Warning Indicator Troubleshooting
665
Low Brake Pressure Indicator Troubleshooting
666
Fuel Level Gauge Troubleshooting
667
Stabil-TRAK™ "Locked" Mode Indicator Troubleshooting
668
Stabil-TRAK™ "Slow Pivot" Mode Indicator Troubleshooting
669
Engine Air-Intake Heater Indicator Troubleshooting (644E-42 Option, 944E-42 Standard)
670
Engine Start Circuit
671
Starting Circuit
671
Starter
672
Charging Circuit
675
Alternator
677
Battery or Batteries
679
Electrical System Components
684
Warning Devices
684
Front Dash Panel
689
Throttle Position Sensor (944E-42 Only)
694
Front Windshield Wiper Switch
696
Front Windshield Wiper Motor
698
Windshield Washer Switch
702
Skylight Wiper/Washer & Rear Window Washer Switch
704
Skylight Wiper Motor
706
Windshield/Skylight/Rear Wiper Washer Reservoir W/Pump
708
Rear Wiper Switch/Motor
710
Cab Heater/Air Conditioning Controls
714
Ignition Switch
717
Switches and Solenoids
717
Fuel Shutoff Solenoid (644E-42, SN 20118 & Before, 0160002519 Thru 0160003689)
720
Hydraulic Oil Filter Pressure Switch
722
Dual Hydraulic Oil Temperature Switch
724
Parking Brake Switch
728
Transmission Disconnect Switch
730
Transmission Shift Control Switch
732
Transmission Solenoid Valves
732
Dual Joystick
735
Optional Single Joystick
737
Boom Sensor (Proximity Switch)
741
Engine Low Oil Pressure Switch
743
Engine Coolant Temperature Sender
745
Transmission Temperature Switch
747
Engine Block Heater
749
Fuel Level Gauge and Fuel Level Sender
750
Hourmeter
752
Stabilizer Brake Switch
752
Section 10 Stabil-Trak™ System
757
Stabil-TRAK™ System Component Terminology
760
Stabil-TRAK™ Description
761
Stabil-TRAK™ Operation
762
Understanding the Stabil-TRAK™ System
762
Relay Testing
764
Stabil-TRAK™ Solenoid Valves
764
Stabil-TRAK™ Electrical Circuit Operation and Troubleshooting (644E-42, SN 20118 & Before, SN 0160002519 Thru 0160003877) (944E-42, SN 20123 & Before, SN 0160002514 Thru 0160003881)
766
SN 0160002519 Thru 0160003877)
773
Stabil-TRAK System Test Procedures
774
Stabil-TRAK™ Electrical Circuit Operation and Troubleshooting (644E-42, 0160003878 & After) (944E-42, 0160003882 & After)
776
Stabil-TRAK™ System Test (644E-42, 0160003878 & After) (944E-42, 0160003882 & After)
782
Stabil-TRAK™ System Test Instructions (644E-42, 0160003878 & After) (944E-42, 0160003882 & After)
782
Stabil-TRAK™ System Test Procedures (644E-42, 0160003878 & After) (944E-42, 0160003882 & After)
782
Stabil-TRAK™ Hydraulic Circuit Operation and Troubleshooting
786
Troubleshooting Symptom Chart
786
Stabilizer Cylinder Oil Flow
787
Hydraulic Circuit Operation - Free Pivot Mode, Rod Oil out
788
Hydraulic Troubleshooting - Free Pivot Mode, Rod Oil out
789
Hydraulic Circuit Operation - Free Pivot Mode, Base Oil out
790
Hydraulic Troubleshooting - Free Pivot Mode, Base Oil out
791
Hydraulic Circuit Operation - Slow Pivot Mode, Rod Oil out
792
Hydraulic Troubleshooting - Slow Pivot Mode, Rod Oil out
793
Hydraulic Circuit Operation - Slow Pivot Mode, Base Oil out
794
Hydraulic Troubleshooting - Slow Pivot Mode, Base Oil out
795
Hydraulic Circuit Operation - Locked Mode
796
Hydraulic Circuit Operation - Locked Mode, Frame Sway Right
796
Hydraulic Troubleshooting - Locked Mode, will Not Frame Sway Right
797
Hydraulic Circuit Operation - Locked Mode, Frame Sway Left
798
Hydraulic Troubleshooting - Locked Mode, will Not Frame Sway Left
799
Section 11 Transfer Carriage
801
Transfer Carriage Component Terminology
802
Transfer Carriage
803
Transfer Carriage Description
803
Transfer Carriage Maintenance
803
Transfer Carriage Operation
803
Transfer Carriage Installation
804
Transfer Carriage Removal
804
Rear Wear Pad Check
813
Rear Wear Pad Shimming
813
Front Upstop Wear Pad Check
814
Front Upstop Wear Pad Gap Check
814
Rear Wear Pad Replacement
814
Front Upstop Wear Pad Shimming
815
Front Upstop Wear Pad Replacement
816
Rear Roller Gap Check
816
Rear Roller Shimming
817
Front Roller Gap Check
819
Front Roller Shimming
820
Front Scraper Plate Replacement
821
Front Roller and Bushing Replacement
822
Rear Roller and Bushing Replacement
823
Boom Pivot Bushing Replacement
825
Slave Cylinder Pivot Bushing Replacement
826
Transfer Cylinder Replacement
827
Transfer Carriage Troubleshooting
830
Troubleshooting
830
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Lull 944E-42 Service Manual (266 pages)
Brand:
Lull
| Category:
Forklifts
| Size: 19 MB
Table of Contents
Section
5
Table of Contents
5
Safety Practices
10
Introduction
10
Disclaimer
10
Operation & Safety Manual
10
Do Not Operate Tags
10
Safety Information
10
Safety Alert System and Signal Words
10
Safety Instructions
11
Equipment Hazards
11
General Hazards
11
Personal Hazards
11
Safety Decals
12
Operational Hazards
12
Section 2 General Information and Specifications
13
Replacement Parts and Warranty Information
14
Torque Charts
15
SAE Fastener Torque Chart
17
Specifications
23
Travel Speeds
23
Electrical System
23
Hydraulic Cylinder Performance
23
Engine Performance Specifications
24
Tires
24
Fluid and Lubricant Capacities
25
Service and Maintenance Schedules
27
50 Hour
27
1St 100, 250 & 1St 500 Hour
28
500, 1000 & 2000 Hour
29
Lubrication Schedules
30
Section 3 Boom
31
Boom System Component Terminology
32
Boom System
33
Boom Assembly Maintenance
33
Third Boom Section Removal
33
Second Boom Section Removal
37
First Boom Section Installation
40
Second Boom Section Installation
41
Third Boom Section Installation
41
Boom Extend and Retract Chains
44
Boom Chain Inspection
44
Inspection Guidelines
45
Boom Chain Tension Check
47
Chain Lubrication
47
Expose Chains for Inspection
47
Boom Chain Tension Adjustment
48
Extend Chains Removal and Replacement
50
Boom Wear Pads
52
Wear Pad Inspection
52
Wear Pad Installation and Lubrication
52
Quick Attach Assembly
53
Forks
53
Quick Attach Removal
53
Quick Attach Installation
53
Troubleshooting
54
Emergency Boom Lowering
57
Loss of Engine Power or Hydraulic Pump Failure
57
Hydraulic Line Failure
57
Hydraulic Hose Replacement - Step 1
58
Hydraulic Hose Replacement - Step 2
59
Section 4 Cab and Covers
61
Operator's Cab and Covers Component Terminology
62
Cab Components
63
Cab Safety
63
Serial Number Decal
63
Steering Column and Steering Valve
63
Service Brake Valve and Pedal
64
Throttle Pedal
65
Throttle Position Sensor Replacement
66
Joystick Assemblies
67
Operator's Cab
63
Enclosed Cab (Optional) Components
68
Front Windshield Wiper Switch
68
Front Windshield Wiper Motor
68
Heater/Defroster System
68
Rear Wiper Switch/Motor
68
Skylight Wiper Motor
68
Skylight Wiper Washer & Rear Window Washer Switch
68
Windshield Washer Control
68
Windshield/Skylight/Rear Wiper Washer Reservoir W/Pump
68
Cab Removal
69
Cab Installation
71
Valve Plate
72
Valve Plate Removal
72
Section 5 Axles, Drive Shafts, Wheels and Tires
73
Axle, Drive Shaft and Wheel Component Terminology
74
Axles, Drive Shafts, Wheels and Tires
74
General Information
75
Axle Assemblies
75
Axle Serial Number Plate
75
Axle Internal Service
75
Axle Maintenance
75
Axle Specifications
75
Axle Replacement
76
Axle Installation
77
Axle Assembly and Drive Shaft Troubleshooting
79
Drive Shafts
82
Drive Shaft Inspection and Service
82
Drive Shaft Cleaning and Drying
82
Drive Shaft Installation
82
Drive Shaft Maintenance
82
Drive Shaft Removal
82
Wheels and Tires
83
Removing Wheel and Tire Assembly from Machine
83
Brakes
84
Installing Wheel and Tire Assembly Onto Machine
84
Brake Disc Inspection
84
Towing a Disabled Machine
85
Section 6 Transmission
87
Transmission Assembly Component Terminology
88
Transmission Replacement
89
Transmission Removal
89
Transmission Installation
91
Transmission Serial Number
89
Transmission Specifications and Maintenance Information
89
Troubleshooting
93
Transmission Troubleshooting
93
Transfer Case Component Terminology
97
Transfer Case
98
Transfer Case Maintenance
98
Transfer Case Replacement
98
Transfer Case Description
98
Transfer Case Installation
98
Transfer Case Removal
98
Transfer Case Serial Number
98
Troubleshooting
100
Transfer Case Troubleshooting
100
Section 7 Engine
103
Introduction - Cummins QSB 4.5
104
Introduction - Cummins QSB
104
Disclaimer and Scope
104
Component Terminology
105
Specifications and Maintenance Information
106
Engine Serial Number
106
Engine Cooling System
106
Radiator Pressure Cap
106
Radiator/Oil Cooler and Replacement
106
Engine Electrical System
107
Fuel System
107
Diesel Fuel
107
Fuel Tank
107
Engine Exhaust System
109
After Fuel System Service
109
Exhaust System Installation
109
Exhaust System Removal
109
Air Cleaner Assembly
110
Air Cleaner Assembly Removal
110
Air Cleaner Assembly Installation
110
Engine Replacement
111
Engine Removal
111
Engine Installation
113
Troubleshooting
115
Section 8 Hydraulic System
117
Hydraulic Component Terminology
118
Safety Information
119
Hydraulic Pressure Diagnosis
120
Hydraulic Circuits
121
Hydraulic Pressures
121
Hydraulic Schematic, 944E
128
Hydraulic Reservoir
129
Hydraulic Oil Reservoir Draining
129
Hydraulic Oil Reservoir Filling
129
Hydraulic Oil Reservoir Replacement
129
Hydraulic System Pump
132
Pump Description
132
Pump Failure Analysis
132
Pump Replacement
132
Valves and Manifolds
133
Valve Plate Assembly
133
Joystick Valve (Dual Joystick)
138
Pilot Select Valve (Dual Joystick)
139
Joystick Valve (Single Joystick)
140
Single Joystick Pilot Select Valve
141
Frame Sway Joystick Valve
142
Service Brake Valve
144
Brake Test
145
Power Steering Valve
145
Steer Select Valve
146
Accumulator Charge Troubleshooting
153
Accumulator Charge/Secondary Function Valve
153
Accumulators
153
Checking Pre-Charge
153
Hydraulic Cylinders
154
Cylinder Pressure Checking
156
Steering Cylinders
156
Cylinder Torque Specifications
157
Section 9 Electrical System
159
Electrical System
161
Electrical Component Terminology
161
General Overview
161
Fuses and Relays
162
Engine Compartment
162
Cab
162
Starter
162
Electrical Schematics
164
Circuit Breakdowns
170
Engine Start Circuit
172
Charging Circuit
173
Window Wiper/Washer Windshield Wiper Motor
174
Cab Heater and Fan
178
Specifications
162
Safety Information
162
Switches and Solenoids
179
Ignition Key Switch
179
Hydraulic Oil Filter Pressure Switch
179
Dual Hydraulic Oil Temperature Switch
180
Auxiliary Hydraulic Pressure Release Switch
181
Parking Brake Switch
181
Transmission Disconnect Switch
182
Transmission Shift Control Switch
183
Transmission Solenoid Valves
183
Dual Joystick
185
Optional Single Joystick
186
Boom Angle Sensor
188
Coolant Temperature Switch
189
Fuel Level Gauge and Fuel Level Sender
190
Transmission Temperature Switch
190
Hourmeter
191
Stabilizer Brake Switch
192
Dash Switches
194
Troubleshooting
195
Engine Fault Codes Retrieval
195
Engine Fault Codes Chart
195
Probing Electrical Connectors
208
Troubleshooting with a Digital Multimeter (DMM)
208
Section 10 Stabil-Trak™ System
213
Stabil-TRAK™ System Component Terminology
214
Stabil-TRAK™ System
214
Stabil-TRAK™ Description
215
Stabil-TRAK™ Solenoid Valves
215
Stabil-TRAK™ Electrical Circuit Operation and Troubleshooting
216
Stabil-TRAK™ System Test
222
Stabil-TRAK™ System Test Instructions
222
Stabil-TRAK™ System Test Procedures
222
Stabil-TRAK™ Hydraulic Circuit Operation and Troubleshooting
225
Troubleshooting Symptom Chart
225
Stabil-TRAK™ Hydraulic Circuit
226
Stabilizer Cylinder Oil Flow
226
Hydraulic Circuit Operation - Free Pivot Mode, Rod Oil out
227
Hydraulic Troubleshooting - Free Pivot Mode, Rod Oil out
228
Hydraulic Circuit Operation - Free Pivot Mode, Base Oil out
229
Hydraulic Troubleshooting - Free Pivot Mode, Base Oil out
230
Hydraulic Circuit Operation - Slow Pivot Mode, Rod Oil out
231
Hydraulic Troubleshooting - Slow Pivot Mode, Rod Oil out
232
Hydraulic Circuit Operation - Slow Pivot Mode, Base Oil out
233
Hydraulic Troubleshooting - Slow Pivot Mode, Base Oil out
234
Hydraulic Circuit Operation - Locked Mode
235
Hydraulic Circuit Operation - Locked Mode, Frame Sway Right
235
Hydraulic Troubleshooting - Locked Mode, will Not Frame Sway Right
237
Hydraulic Circuit Operation - Locked Mode, Frame Sway Left
238
Hydraulic Troubleshooting - Locked Mode, will Not Frame Sway Left
239
Section 11 Transfer Carriage
241
Transfer Carriage
242
Transfer Carriage Component Terminology
242
Transfer Carriage Maintenance
243
Transfer Carriage Description
243
Transfer Carriage Operation
243
Transfer Carriage Installation
247
Rear Wear Pad Check
249
Rear Wear Pad Shimming
250
Rear Wear Pad Replacement
250
Front Upstop Wear Pad Check
251
Front Upstop Wear Pad Gap Check
251
Front Upstop Wear Pad Shimming
251
Front Upstop Wear Pad Replacement
252
Rear Roller Gap Check
252
Rear Roller Shimming
253
Front Roller Gap Check
254
Front Roller Shimming
255
Front Scraper Plate Replacement
255
Front Roller and Bushing Replacement
256
Rear Roller and Bushing Replacement
257
Boom Pivot Bushing Replacement
257
Slave Cylinder Pivot Bushing Replacement
258
Transfer Cylinder Replacement
259
Troubleshooting
262
Transfer Carriage Troubleshooting
263
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