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 227 of 985

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cont)

2-15. TROUBLESHOOTING INSTRUCTIONS (CONT).

Table 2-9. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

AIR SYSTEM (CONT)

1. AIR PRESSURE BUILDUP SLOW (CONT).

Step 7. Drain air pressure. Remove air dryer discharge line No. 184. Start engine and build air

pressure. Check air flow from air dryer discharge port.

If little or no air comes from discharge port, service air dryer and check for

restricted air dryer outlet check valve (para 11-22, 11-23).

If a large amount of air comes from discharge port, go to Step 8.

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