DRAWBAR WILL NOT LOWER. (Cont) -725550531

TM 9-2330-385-14

If air lines are disconnected while under 90 to 125 psi (621-862 kPa), they can whip around and

cause injury or death to personnel. Air system should be drained and air bag control valve set in

center position before air bag air lines are disconnected.

Drawbar weighs 425 lbs (193 kg), (850 lbs (386 kg) with drawbar extension, if equipped). Drawbar

may raise quickly or fall suddenly to the ground when released from coupler. Do not allow feet or

body to get under or above drawbar. Serious injury to personnel may result.

VISUAL INSPECTION

Inspect air lines 2224, 2226, 2225, 2231,

2232 and fittings for crimps or blockage.

(1) If air hose(s) and fitting(s) are

crimped or blocked, clean, repair or

replace air hose(s) (see schematic

(2) If air lines and fittings are OK,

go to Step (3) of this Fault.

AIR BAG CONTROL VALVE

OPERATION TEST

(1) Move air bag control lever in the

down position.

(2) Disconnect air hose 2231 from check

valve.

(3) Raise air bag control lever to

up position.

(4) While assistant lowers air bag control

lever to down position, listen to air

hose 2231.

(a) If air does not escape from air

hose 2231, perform Steps (5)

and (6) below and replace control

(b) If air escapes from air hose

2231, perform Steps (5) and (6)

below and replace relief valve

(5) Raise air bag control lever to center

position.

(6) Connect air hose 2231 to relief valve.

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