Lull 944E-42 Service Manual Bedienungsanleitung Seite 68
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Cab and Covers
4-8
944E-42
4.4 ENCLOSED CAB (OPTIONAL)
COMPONENTS
4.4.1 Front Windshield Wiper Switch
Refer to Section 9.12.1, “Dash Switches.”
4.4.2 Front Windshield Wiper Motor
Refer to Section 9.9.1, “Windshield Wiper Motor.”
4.4.3 Windshield Washer Control
Refer to Section 9.12.1, “Dash Switches.”
4.4.4 Skylight Wiper Washer & Rear
Window Washer Switch
Refer to Section 9.12.1, “Dash Switches.”
4.4.5 Skylight Wiper Motor
Refer to Section 9.9.2, “Skylight Wiper Motor.”
4.4.6 Windshield/Skylight/Rear Wiper
Washer Reservoir w/Pump
Refer to Section 9.9.4, “Windshield Washer Reservoir
and Pump.”
4.4.7 Rear Wiper Switch/Motor
Refer to Section 9.9.3, “Rear Wiper Switch/Motor.”
4.4.8 Heater/Defroster System
a. Heater Assembly Removal
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom,
place the travel select lever in the (N) NEUTRAL
position, engage the park brake and shut the engine
OFF.
Note: For machines equipped with air conditioning,
before the heater assembly can be removed, the air
conditioning hoses and electrical connections must be
completed by an authorized air conditioning service
technician. A technician will also be needed to restore
the connections when the heater assembly is installed.
2. Place a Do Not Operate Tag on both the ignition key
switch and the steering wheel, stating that the
machine should not be operated.
3. Open the engine cover. Allow the system fluids to
cool.
4. Properly disconnect the batteries.
5. Place a suitable container beneath the radiator drain
plug or petcock. Slowly turn the radiator cap to the
first stop, and allow any pressure to escape. Remove
the radiator cap.
6. Place a funnel at the base of the radiator to channel
the drained coolant into the container. Loosen the
drain plug or petcock and allow the coolant to drain.
7. Transfer the coolant to a container with a cover, and
label as “Used Antifreeze.” Dispose of the used
coolant at an approved recycling facility.
8. Close the radiator drain plug or petcock.
9. Remove the seat, washer fluid reservoir and seat
mounting panel (6).
10. Remove the right side console access panel (7).
11. Disconnect the heater wire from the cab harness.
12. Label and remove all duct hoses at the heater
assembly.
MU5901
6
SU0061
7
- Service Manual 1
- EFFECTIVITY PAGE 3
- SECTION CONTENTS 5
- Section Subject Page 6
- Section 1 9
- Safety Practices 9
- 1.1 INTRODUCTION 10
- 1.2 DISCLAIMER 10
- 1.4 DO NOT OPERATE TAGS 10
- 1.5 SAFETY INFORMATION 10
- 1.6 SAFETY INSTRUCTIONS 11
- 1.7 SAFETY DECALS 12
- Section 2 13
- 2.1 REPLACEMENT PARTS AND 14
- WARRANTY INFORMATION 14
- 2.2 TORQUE CHARTS 15
- (Continued) 16
- SOCKET HEAD CAP SCREWS 17
- CLASS 8.8 METRIC BOLTS 19
- CLASS 8 METRIC NUTS 19
- Magni Coating* 21
- 2.3 SPECIFICATIONS 23
- 2.3.5 Tires 24
- 2.5 SERVICE AND MAINTENANCE 27
- SCHEDULES 27
- LB/FT (Nm) 28
- 2.6 LUBRICATION SCHEDULES 30
- Section 3 31
- 3.1 BOOM SYSTEM COMPONENT 32
- 3.2 BOOM SYSTEM 33
- BOOM EXTEND AND RETRACT 44
- 3.4.2 Inspection Guidelines 45
- 3.4.4 Chain Lubrication 47
- 3.5 BOOM WEAR PADS 52
- 3.6 QUICK ATTACH ASSEMBLY 53
- 3.7 FORKS 53
- 3.8 TROUBLESHOOTING 54
- 3.9 EMERGENCY BOOM LOWERING 57
- Section 4 61
- Cab and Covers 61
- 4.2 OPERATOR’S CAB 63
- 4.3 CAB COMPONENTS 63
- 4.3.2 Steer Select Valve 64
- 4.3.4 Throttle Pedal 65
- 4.3.6 Joystick Assemblies 67
- 4.4 ENCLOSED CAB (OPTIONAL) 68
- COMPONENTS 68
- 4.5 CAB REMOVAL 69
- 4.6 CAB INSTALLATION 71
- 4.7 VALVE PLATE 72
- Section 5 73
- 5.2 GENERAL INFORMATION 75
- 5.3 AXLE ASSEMBLIES 75
- 5.3.5 Axle Replacement 76
- 5.3.6 Axle Installation 77
- To Transmission 82
- 5.5 WHEELS AND TIRES 83
- Tread “arrows” must point 84
- Install tires onto wheels to 84
- 5.7 TOWING A DISABLED MACHINE 85
- Section 6 87
- 6.1 TRANSMISSION ASSEMBLY 88
- AND MAINTENANCE INFORMATION 89
- 6.4 TRANSMISSION REPLACEMENT 89
- 6.5 TROUBLESHOOTING 93
- 6.6 TRANSFER CASE COMPONENT 97
- 6.7 TRANSFER CASE 98
- 6.9 TRANSFER CASE MAINTENANCE 98
- 6.10.1 Transfer Case Removal 99
- 6.11 TROUBLESHOOTING 100
- Problem Cause Remedy 100
- Transmission 102
- Section 7 103
- 7.1.1 Disclaimer and Scope 104
- 7.1.2 Component Terminology 105
- 7.2 ENGINE SERIAL NUMBER 106
- 7.3 SPECIFICATIONS AND 106
- MAINTENANCE INFORMATION 106
- 7.4 ENGINE COOLING SYSTEM 106
- 7.5 ENGINE ELECTRICAL SYSTEM 107
- 7.6 FUEL SYSTEM 107
- 7.7 ENGINE EXHAUST SYSTEM 109
- 7.8 AIR CLEANER ASSEMBLY 110
- 7.9 ENGINE REPLACEMENT 111
- 7.9.2 Engine Installation 113
- 7.10 TROUBLESHOOTING 115
- Section 8 117
- Hydraulic System 117
- 8.1 HYDRAULIC COMPONENT 118
- TERMINOLOGY 118
- 8.2 SAFETY INFORMATION 119
- 8.4 HYDRAULIC CIRCUITS 121
- Hydraulic Pump Flow Test 123
- DUAL JOYSTICK CONFIGURATION 128
- 8.5 HYDRAULIC RESERVOIR 129
- 8.6 HYDRAULIC SYSTEM PUMP 132
- 8.7 VALVES AND MANIFOLDS 133
- 8.7.2 Main Control Valve 134
- 8.7.9 Service Brake Valve 144
- 8.7.10 Brake Test 145
- 8.7.11 Power Steering Valve 145
- 8.7.12 Steer Select Valve 146
- Function Valve 148
- 8.7.14 Accumulators 149
- 8.7.15 General Information 150
- 8.7.16 Checking Pre-Charge 152
- 8.8 HYDRAULIC CYLINDERS 154
- AFTER the head gland 155
- AXLE CENTER SECTION 156
- STEERING CYLINDER 156
- Section 9 159
- Electrical System 159
- 9.1 ELECTRICAL COMPONENT 161
- 9.2 SPECIFICATIONS 162
- 9.3 SAFETY INFORMATION 162
- 9.4 FUSES AND RELAYS 162
- 9.5 ELECTRICAL SCHEMATICS 164
- CHASSIS CIRCUIT 170
- AUXILIARY HYDRAULICS 170
- ENCLOSED CAB OPTION 170
- 9.7 ENGINE START CIRCUIT 172
- 9.8 CHARGING CIRCUIT 173
- 9.9 WINDOW WIPER/WASHER 174
- WINDSHIELD WIPER MOTOR 174
- 9.9.2 Skylight Wiper Motor 175
- 9.9.3 Rear Wiper Switch/Motor 176
- 9.10 CAB HEATER AND FAN 178
- 9.11 SWITCHES AND SOLENOIDS 179
- PARK BRAKE INDICATOR 181
- 9.11.9 Dual Joystick 185
- 9.11.11 Boom Angle Sensor 188
- 9.11.15 Hourmeter 191
- 9.12 DASH SWITCHES 194
- 9.13 TROUBLESHOOTING 195
- Multimeter (DMM) 208
- Section 10 213
- Stabil-TRAK™ System 213
- 10.1 STABIL-TRAK™ SYSTEM 214
- COMPONENT TERMINOLOGY 214
- 10.2 STABIL-TRAK™ DESCRIPTION 215
- 10.4 STABIL-TRAK™ SYSTEM TEST 222
- Locked Mode, Frame Sway Right 235
- Section 11 241
- Transfer Carriage 241
- 11.2 TRANSFER CARRIAGE 243
- 11.3 TRANSFER CARRIAGE 243
- MAINTENANCE 243
- 11.3.3 Rear Wear Pad Check 249
- 11.3.4 Rear Wear Pad Shimming 250
- 11.3.10 Rear Roller Gap Check 252
- 11.3.11 Rear Roller Shimming 253
- 11.3.13 Front Roller Shimming 255
- Replacement 256
- 11.4 TROUBLESHOOTING 262
- 31200355 266
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