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 237 of 985

TM 92320-279-20-1

Troubleshooting Malfunctions (Cont)

2-15. TROUBLESHOOTING INSTRUCTIONS (CONT).

Table 2-9. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

15.

AIR SYSTEM (CONT)

THROTTLE TREADLE ACCELERATES ENGINE BUT NO AIR PRESSURE IN REMAINDER OF

AIR SYSTEM.

Step 1.

Step

2.

Check for loose or damaged air lines from No. 1 air reservoir to all systems.

Tighten loose air line fittings and repair damaged air lines.

Remove output line from pressure protection valve at No. 1 air reservoir.

Start engine (TM 9-2320-279-10), wait until air dryer exhausts.

If air does not come out of pressure protection valve, replace pressure protection

valve (para 11-29).

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