TM-9-2320-279-20-1

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 1 OF 3

TM-9-2320-279-20-1 - Page 204 of 985

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cont)

2-l5. TROUBLESHOOTING INSTRUCTIONS (CONT).

Table 2-9. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

Step 4.

Turn

engine start switch to ON position, turn PTO ENGAGE switch ON and OFF several

times while touching PTO solenoid to feel for vibration (listen for clicking).

If

PTO solenoid valve vibrates (clicks), refer to Step 6.

If solenoid does not click, go to Step 5.

Step 5.

Check solenoid wires for loose connections, damage, and continuity.

Tighten loose connections, repair damaged wires and replace wires with no

continuity.

If all wires and connections are okay, replace PTO solenoid (para 7-30).

Step 6.

If PTO still will not engage, refer to Hydraulic System Troubleshooting (page 2-153).

Step 7.

Deleted.

Step 8.

Deleted.

All data on page 2-119 deleted.

2-118

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