Main power circuit troubleshooting, Mast troubleshooting, Hydraulic leak troubleshooting – JLG DVSP Series Service Manual User Manual

Page 123: Base frame components troubleshooting, Drive system troubleshooting

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SECTION 6 - TROUBLESHOOTING

3121136

– JLG Lift –

6-9

Code 39 - Battery Voltage Low - Warning Level 3 - One (1) LED/LCDs lit . . . . . . . . . . . . . . . . 6-26

Code 40 - Obstruction Sensor System - No Communication with Ground Control Module . . 6-27

Codes 41 thru 46 - OSS - Sensor 1 through 6 - Fault Condition. . . . . . . . . . . . . . . . . . . . . . . . 6-28

Codes (100 - 199) Ground Control Module - Fault Condition . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29

Codes (200 - 299) Platform Control Console - Fault Condition. . . . . . . . . . . . . . . . . . . . . . . . . 6-30

Codes (300 - 399) Traction Control Module - Fault Condition. . . . . . . . . . . . . . . . . . . . . . . . . . 6-31

MAIN POWER CIRCUIT TROUBLESHOOTING

Machine Will Not Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32

MAST TROUBLESHOOTING

Platform Will Not Lower Manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33

Platform Lift Up And Down Jerky . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33

Mast Noisy When Lifting And Lowering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34

Platform (Mast) Won’t Stay Elevated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35

Platform (Mast) Descends Too Slowly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35

HYDRAULIC LEAK TROUBLESHOOTING

Miscellaneous Hydraulic Leak Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-36

BASE FRAME COMPONENTS TROUBLESHOOTING

Caster Wheels Not Operating Freely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-37

Pot Hole Protection (PHP) Bars will not Lower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-37

DRIVE SYSTEM TROUBLESHOOTING

Won’t Climb Grade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38

Machine Drives in Opposite Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39

Machine Won’t Drive Straight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40

Noise From Drive Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41

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