TM-9-2320-273-20

TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE

NOVEMBER 1980

TM-9-2320-273-20 - Page 1023 of 1500

TM 9-2320-273-20

BRAKE SYSTEM.

9-27, DOUBLE-CHECK VALVE MAINTENANCE (Continued).

LOCATION/lTEM

ACTION

REMARKS

Do not remove double-check valve until pressure

is fully exhausted from all reservoirs.

NOTE

For location, refer to locator illustration (para

9-5 e. thru 9-5 j,). Double-check valves are attached

to the rear of the secondary air reservoir and to the

engine side of the brake pedal valve on all models.

There is a double-check valve on the driver’s side of

the brake pedal valve on all models except the M918

and M919. All models use a double check valve with

stoplamp switch attached to the engine side of the

firewaIl near the brake pedal valve. The procedure

below is general and may be used to service any of

these double-check valves.

9-103