Jlg 40H Service Manual User Manual Page 128
- Page / 152
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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SECTION 3 - TROUBLESHOOTING
3-16 – JLG Lift – 3120240
Table 3-6. Electrical Assembly Troubleshooting.
TROUBLE PROBABLE CAUSE REMEDY
PLATFORM CONTROLS.
No power to platform controls. Self-reset circuit breaker open.
Contact block in footswitch malfunctioning.
Faulty power circuit wiring.
Select switch in wrong position.
Check footswitch to ensure that both switches are
making contact when pedal is depressed. Repair or
replace footswitch as required.
Repair, replace or adjust contact block as required.
Check wiring continuity. Refer to proper wiring dia-
gram.
Place select switch to correct position.
ENGINE STARTER SYSTEM.
Starter will not crank. Discharged battery or loose battery terminals.
Starter relay faulty or faulty relay connections.
Malfunctioning starter solenoid or motor.
Malfunctioning ignition switch.
Faulty ignition and/or starter circuit wiring.
Faulty starter lockout system.
Faulty starter switch.
Check and charge battery or replace battery as nec-
essary. Clean and secure battery terminals.
Using a test meter, check relay coil terminals for
presence of electrical power and for energizing of
relay coil. Also check relay terminals for correct
switching of contacts. Replace relay as necessary.
Replace solenoid or motor in accordance with appli-
cable manufacturer’s manual.
Using a test meter, check ignition switch for correct
switching of contacts. Replace switch as necessary.
Check wiring continuity. See proper wiring diagram.
See correct wiring diagram.
Replace switch.
Engine continues to crank. Faulty ignition and/or starter circuit wiring.
Malfunctioning starter solenoid or motor.
Faulty starter switch.
Check wiring continuity. See proper wiring diagram.
Replace solenoid or motor in accordance with appli-
cable manufacturer’s manual.
Replace switch.
INSTRUMENTS AND INDICATORS.
Travel warning horn inoperative. Circuit breaker open.
Damaged wiring in horn circuit.
Damaged horn.
Determine and correct cause; reset circuit breaker.
Repair or replace wiring.
Replace horn.
- October 11, 2001 1
- PRECAUTIONS 3
- REVISON LOG 4
- TABLE OF CONTENTS 5
- (Continued) 6
- SECTION 3 - TROUBLESHOOTING 6
- LIST OF FIGURES 6
- FIGURE NO. TITLE PAGE NO 6
- (INTENTIONAL BLANK PAGE) 8
- SECTION 1. SPECIFICATIONS 9
- 1-2 – JLG Lift – 3120240 10
- 3120240 – JLG Lift – 1-3 11
- SECTION 1 - SPECIFICATIONS 12
- Deutz F3L912/F3L1011 Engine 12
- Wisconsin VG4D Engine 12
- 1-8 – JLG Lift – 3120240 16
- 3120240 – JLG Lift – 1-9 17
- SECTION 2. PROCEDURES 21
- 2-2 – JLG Lift – 3120240 22
- 3120240 – JLG Lift – 2-3 23
- 2-4 – JLG Lift – 3120240 24
- 3120240 – JLG Lift – 2-5 25
- 2-6 – JLG Lift – 3120240 26
- 3120240 – JLG Lift – 2-7 27
- 2.9 CYLINDER REPAIR 29
- Disassembly 29
- Cleaning and Inspection 30
- Assembly 30
- 2.10 CYLINDER REMOVAL AND 32
- INSTALLATION 32
- Telescope Cylinder Removal 32
- 2-14 – JLG Lift – 3120240 34
- Inspection 36
- 3120240 – JLG Lift – 2-19 39
- 2-20 – JLG Lift – 3120240 40
- 3120240 – JLG Lift – 2-21 41
- 2-22 – JLG Lift – 3120240 42
- Linkage 43
- Mounting-Controller 44
- Power Distribution 44
- Troubleshooting 48
- 2.17 THROTTLE CHECKS AND 49
- ADJUSTMENTS - DEUTZ F2L511 49
- ENGINE. (SEE FIGURE 2-8.) 49
- 3120240 – JLG Lift – 2-33 53
- 3120240 – JLG Lift – 2-35 55
- ADJUSTMENT 78
- 2.23 SWING BEARING 79
- Wear Tolerance 80
- Installation 81
- Swing Bearing Torque Values 82
- Repair 85
- 2.26 SWING DRIVE BRAKE, MICO 91
- (MACHINES BUILT PRIOR TO MAY 91
- 1992). (SEE FIGURE 2-39.) 91
- 2-72 – JLG Lift – 3120240 92
- Bleeding 94
- 3120240 – JLG Lift – 2-75 95
- 3120240 – JLG Lift – 2-77 97
- 3120240 – JLG Lift – 2-79 99
- SECTION 2 - PROCEDURES 100
- 3120240 – JLG Lift – 2-81 101
- 3120240 – JLG Lift – 2-83 103
- 3120240 – JLG Lift – 2-85 105
- 3120240 – JLG Lift – 2-87 107
- 3120240 – JLG Lift – 2-89 109
- INSPECTION SCHEDULE 110
- 2-92 – JLG Lift – 3120240 112
- SECTION 3. TROUBLESHOOTING 113
- SECTION 3 - TROUBLESHOOTING 114
- JLG Worldwide Locations 152
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