TM-9-2320-279-20-2

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

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 2 OF 3

TM-9-2320-279-20-2 - Page 248 of 938

TM 9-2320-279-20-2

Brake and Air System Maintenance Instructions (Cont)

11-36. AIR GOVERNOR TESTING/ADJUSTMENT (CONT).

a. Testing.

(1) Start engine (TM 9-2320-279-10).

(2) Watch air pressure gage (1). Needle (2) should move up scale as system pressure builds up.

(3) After several minutes, gage needle (2) should stop at between 120 and 125 psi (827 and 862 kPa)

as governor (3) cuts out. When governor cuts out, released air from air dryer can be heard.

(4) If governor (3) does not cut out between 120 and 125 psi (827 and 862 kPa), adjust governor.

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