Hydraulic Suspension LOCKOUT WILL NOT ENGAGE (HMMH). cont'd -680640361

TM 5-2420-224-20-1

Table 3-5. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

ELECTRICAL SYSTEM (CONT)

Step 38. Check for +24 VDC between wire 7 and wire 14 (48) and ground at motor

relay (43).

If +24 VDC is not present, go to step 42.

If +24 VDC is present, go to step 39.

Step 39. Check for +24 VDC between wire 7 and wire 14 (48) and ground at

connector AA (46) and connector AB (24).

If +24 VDC is not present, repair wiring 7 and wiring 14

between motor relay and connector AA and connector AB.

If +24 VDC is present, go to step 40.

Step 40. Check for +24 VDC between wire 7 and wire 14 (48) and ground at cab

floor separation point (25).

If +24 VDC is not present, repair wiring 7 and wiring 14

between connector AA and connector AB and cab floor

separation point.

If +24 VDC is present, go to step 41.

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