Jlg G6-42A Service Manual Manuel d'utilisateur Page 52
- Page / 246
- Table des matières
- DEPANNAGE
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Boom
3-14
G6-42A, G9-43A, G10-43A
18. Install the previously removed strong back (16) with
the existing hardware. Torque as required.
19. Install the extend/retract cylinder pin (17) through the
strong back (16). Secure the pin with the retaining
rings.
20. Apply CAT Thread Lubricant to the extend chain
clevis rod threads (18).
21. Install the extend chain clevis rod (18) into the strong
back (16).
22. Install the belleville washers (19) as previously
removed (cupped washer facing strong back). Install
the adjustment nut and lock nut. Snug, but Do Not
tighten at this time.
23. Remove the caps and plugs from the extend/retract
cylinder fittings and the extend/retract tubes (20).
24. Install both extend/retract tubes (20) and torque as
required.
25. Uncap and reconnect the previously labeled
hydraulic hoses to the extend/retract cylinder.
26. Uncap and connect and remaining hydraulic fittings
to their appropriate locations.
27. Recheck wear pad gaps to ensure they meet the
minimum gap requirement. Shim if necessary.
28. Ensure that the boom chains are properly adjusted.
Refer to Section 3.8, “Boom Adjustments.”
29. Properly connect the battery.
30. Start the engine and operate all boom functions
several times. Check for leaks, and check the
hydraulic fluid level in the reservoir; add fluid if
required.
31. Clean up all debris, hydraulic fluid, etc., in, on, near
and around the machine.
32. Close and secure the engine cover.
33. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel.
3.6 EXTEND/RETRACT CHAIN
REMOVAL/INSTALLATION
3.6.1 Extend/Retract Chain Removal
The following section explains the removal of the extend/
retract chains without removing or disassembling the
boom assembly.
1. Park the machine on a hard, level surface, level the
machine, fully retract the boom, level 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.
3. Open the engine cover. Allow the system fluids to
cool.
4. Properly disconnect the battery.
5. Remove the cover from the rear of the first boom
section.
6. Remove the extend/retract cylinder hydraulic
tubes (4). Plug the tube ends and cap the fittings to
keep dirt & debris from entering the hydraulic
system.
7. Remove the extend/retract cylinder mounting pin (5)
from the strong back.
MAL2660
18
20
20
17
16
19
G6-42A
G9-43A
G10-43A
MY0580
5
4
6
- 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
- CLASS 10.9 METRIC BOLTS 20
- CLASS 10 METRIC NUTS 20
- M6 AND ABOVE* 21
- 2.3 SPECIFICATIONS 23
- 2.3.4 Electrical System 25
- 2.3.5 Tires 26
- 2.5 SERVICE AND MAINTENANCE 30
- SCHEDULE 30
- 2.6 LUBRICATION SCHEDULE 33
- 2.6.2 G9-43A / G10-43A 36
- Section 3 39
- 3.1 BOOM SYSTEM COMPONENT 41
- 3.2.1 Boom System Operation 42
- 3.4 COMPLETE BOOM REMOVAL/ 43
- INSTALLATION 43
- 3.5 BOOM SECTION REMOVAL/ 44
- Assembly 47
- Installation 50
- 3.6 EXTEND/RETRACT CHAIN 52
- REMOVAL/INSTALLATION 52
- CYLINDER REMOVAL/ 54
- Remove the strong back 55
- 3.8 BOOM ADJUSTMENTS 58
- G9-43A/G10-43A 60
- 3.9 QUICK SWITCH ASSEMBLY 63
- 3.11 BOOM WEAR PADS 64
- 3.12 BOOM EXTEND AND RETRACT 65
- 3.12.2 Inspection Guidelines 66
- 3.13 FORKS 68
- 3.14 EMERGENCY BOOM LOWERING 69
- PROCEDURE 69
- 3.15 TROUBLESHOOTING 71
- Section 4 75
- Cab and Covers 75
- 4.1 OPERATOR CAB AND COVERS 76
- 4.1.2 General Overview 77
- 4.2 OPERATOR CAB 79
- 4.3 CAB COMPONENTS 79
- 4.3.2 Service Brake Pedal 80
- 4.3.3 Throttle Pedal 81
- (If Equipped) 82
- (G10-43A) Joysticks 83
- (if equipped) 84
- 4.4 CAB REMOVAL 85
- 4.5 CAB INSTALLATION 86
- Section 5 89
- 5.2 GENERAL INFORMATION 91
- 5.3 AXLE ASSEMBLIES 91
- 5.3.5 Axle Removal 92
- 5.3.6 Axle Installation 93
- TRANSMISSION 98
- 5.5 WHEELS AND TIRES 99
- 5.6 BRAKES 100
- 5.7 TOWING A DISABLED MACHINE 100
- G6-42A, G9-43A, G10-43A 101
- Transmission 103
- Section 6 103
- 6.1 TRANSMISSION ASSEMBLY 104
- COMPONENT TERMINOLOGY 104
- DANA TRANSMISSION 106
- ZF TRANSMISSION 106
- Replacement 108
- 6.5 ENGINE DRIVE PLATE 109
- 6.7 TROUBLESHOOTING 112
- Problem Cause Remedy 112
- Section 7 117
- 7.1 INTRODUCTION - JOHN DEERE 118
- 7.1.4 Component Terminology 119
- 7.2 INTRODUCTION - PERKINS 120
- 7.2.4 Component Terminology 121
- 7.3 INTRODUCTION - CUMMINS 122
- 7.3.4 Component Terminology 123
- TYPICAL 124
- THERMOSTAT 124
- CUMMINS RADIATOR ASSSEMBLY 125
- 7.5 ENGINE ELECTRICAL SYSTEM 126
- 7.6 FUEL SYSTEM 126
- 7.6.2 Fuel Tank 127
- 7.7 ENGINE EXHAUST SYSTEM 128
- 7.8 AIR CLEANER ASSEMBLY 129
- 7.9 ENGINE REPLACEMENT 130
- 7.9.2 Engine Installation 131
- 7.10 TROUBLESHOOTING 133
- Section 8 135
- Hydraulic System 135
- 8.1 HYDRAULIC COMPONENT 136
- TERMINOLOGY 136
- 8.2 SAFETY INFORMATION 137
- 8.4 HYDRAULIC CIRCUITS 139
- 8.5 HYDRAULIC RESERVOIR 151
- 8.6 IMPLEMENT PUMP 152
- 8.7 CONTROL VALVES 153
- G9-43A & G10-43A 154
- 8.7.2 Service Brake Valve 156
- 8.7.3 Brake Test 156
- 8.7.4 Steering Orbitrol Valve 157
- 8.7.5 Steer Select Valve 157
- 8.8 HYDRAULIC CYLINDERS 159
- AXLE CENTER SECTION 161
- STEERING CYLINDER 161
- Section 9 165
- Electrical System 165
- TILT SPEED 167
- 9.4.3 Power Control Board 170
- 9.5.1 Before S/N 0160011059 174
- JOHN DEERE ENGINE 187
- PERKINS ENGINE 188
- DANA SHIFTER 189
- AIR CONDITIONING OPTION 195
- (JOHN DEERE ONLY) 195
- CUMMINS ENGINE 200
- 9.6 CIRCUIT BREAKDOWNS 202
- MY6360 B 203
- JOHN DEERE 204
- 9.6.3 Charging Circuit 207
- 9.7 ENGINE START CIRCUIT 209
- 9.8 CHARGING CIRCUIT 210
- 9.9 WINDOW WIPER/WASHER 211
- WINDSHIELD WIPER MOTOR 211
- 9.10 CAB HEATER AND FAN 212
- 9.11.7 Fuel Level Sender 218
- 9.12.1 Analog Gauges 219
- 9.13 DASH SWITCHES 220
- 9.13.2 Dash Switches 221
- 9.14.2 Diagnostics Menu 223
- 9.15 HAND HELD ANALYZER 224
- MAL0890A 225
- 9.16 JOYSTICK FAULT CODES 226
- DTC Event Comment Latched 226
- JLG Worldwide Locations 246
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