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 230 of 985

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cont)

Table 2-9. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

6.

AIR SYSTEM (CONT)

AIR PRESSURE DROPS RAPIDLY AFTER ENGINE SHUTDOWN.

Step 1. Check connections, lines, and components for leaks.

If connections or lines are leaking, tighten connections and repair leaking lines

(para 11-35).

If components are leaking, replace leaking components (go to Alphabetical Index

to find component replacement procedures).

Step 2. Check for leaking air reservoirs.

If air reservoirs are leaking, replace leaking reservoir (paras 11-29 through 11-33).

7.

COMPRESSOR LEAKS OIL OR COOLANT.

Step 1. Check for damaged or loose oil lines and fittings, and damaged or loose coolant line fittings.

Tighten or replace oil lines or coolant plugs and fittings as necessary.

Step 2. Check for damaged compressor.

Replace damaged compressor (para 11-38).

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