Quantcast HYDRAULIC SUSPENSION LOCKOUT WILL NOT ENGAGE (HMMH) (REG. NO. UC053E THRU UC053K) cont'd -680640372

 

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HYDRAULIC SUSPENSION LOCKOUT WILL NOT ENGAGE (HMMH) (REG. NO. UC053E THRU UC053K) cont'd -680640371
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TM-5-2420-224-20-1 Tractor Wheeled 4x4 DED Small Emplacement Excavator (SEE) and High Mobility Material Handler (HMMH) Manual
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HYDRAULIC SUSPENSION LOCKOUT WILL NOT ENGAGE (HMMH) (REG. NO. UC053E THRU UC053K) cont'd -680640373
TM 5-2420-224-20-1
Table 3-5. Troubleshooting (Cont)
Malfunction
Test or Inspection
Corrective Action
ELECTRICAL SYSTEM (CONT)
Step 15. Check wire (19) at indicator light (18) for continuity to ground.
If short to ground, replace lamp (20) by removing nut and lens
assembly (21 ) and lamp.
if open to ground, go to step 16.
Step 16. Check wire (19) at motor relay (22) for continuity to ground.
If open to ground, go to step 48.
If short to ground, repair wiring (19) between motor relay and
indicator light.
Step 17. Check for +24 VDC between wire (23) and ground at connector AB (24).
If +24 VDC is not present, repair wiring (23) between indicator
light and connector AB.
If +24 VDC is present, go to step 18.
Step 18. Check for +24 VDC between wire (23) and ground at pin 10 of cab floor
separation point (25).
If +24 VDC is not present, repair wiring (23) between
connector AB and cab floor separation point.
If +24 VDC is present, go to step 19.
3-242

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