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 497 of 985

TM 9-2320-279-20-1

Fuel System Maintenance Instructions (Cont)

Section VIl.

THROTTLE CONTROLS

4-13. THROTTLE TREADLE VALVE TESTING.

This task covers:

a. Testing

b. Follow-on Maintenance

lNITIAL SETUP

Models

References

All

None

Test Equipment

Equipment Condition

None

TM or Para

Condition Description

Special Tools

TM 9-2320-279-10 Air system pressurized to

None

90 psi (621 kPa) minimum.

Supplies

TM 9-2320-279-10 Shut off engine.

None

Special Environmental Conditions

None

Personnel Required

MOS

63S,

Heavy wheel vehicle mechanic

General Safety Instructions

None

a. Testing.

(1)

(2)

Press throttle treadle valve (1) by hand. Throttle treadle valve action should be smooth without

binding.

Release throttle treadle valve (1). Throttle treadle valve should return at once without sticking.

4-47