Lull 944E-42 Service Manual Bedienungsanleitung Seite 175
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944E-42
Electrical System
8. Install wiper arm assembly to the wiper motor shaft.
The blade should be parallel with the left side of the
windshield. Install the wiper washer hose onto the
hose adapter.
9. Turn the ignition key to the RUN position and turn
front wiper switch to the ON position. Ensure wiper
stays on the window through a full stroke. Turn the
front wiper switch to the OFF position
10. If previously removed, install hydraulic hoses under
the dash. (Refer to Section 4.3.1, “Steering Column
and Steering Valve.”)
11. Close and secure the engine cover.
9.9.2 Skylight Wiper Motor
a. Removal
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom,
place the transmission control lever in
(N) NEUTRAL, engage the park brake and shut the
engine OFF.
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. Remove the skylight wiper arm from the wiper motor
shaft.
6. Disconnect the washer hose from the top hose
fitting.
7. From inside the cab, remove the screw (12) and
acorn nut (13) from the plastic case of the wiper
motor.
8. From the top of the cab, remove the nut (14) from the
wiper motor shaft.
9. From inside the cab, pull the wiper motor down and
away from the roof.
10. Label and disconnect the cab harness connectors
from the wiper motor.
b. Disassembly
DO NOT disassemble the motor. The motor is not
serviceable. Replace motor if found to be defective.
c. Inspection and Replacement
Inspect the motor terminals for continuity. Replace motor
if continuity is not found.
d. Installation and Testing
Note: An assistant will be required for the installation of
the skylight wiper motor.
1. Reconnect the previously labeled electrical
connections (15).
2. Assemble the plastic case (16) onto the wiper motor.
MU6121
12
13
14
FRONT
MU6141
15
FRONT
16
16
- 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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