Disassembly - (cont.) - TM-5-4930-233-140276

TM 5-4930-233-14

TM 4930-14/1

SKID SUB ASSEMBLY

5-5. TRANSFER PUMP - REPAIR/ADJUST (Cont.)

b. Disassembly - (cont.)

WARNING

Do not remove cylinder completely with a wrench. If cylinder cannot be easily unscrewed by hand

after it has been loosened, pressure is probably trapped inside. Venting pressure before removal

is necessary because a pressurized cylinder can fly off with damaging force that can cause

personal injury.

(6) Loosen cylinder (17).

(7) After cylinder is loosened, remove it by hand. Do not force.

WARNING

Protective goggles must be worn when drilling cylinder to prevent personnel injury caused by

metal shavings flying out under pressure.

(8) If cylinder (17) does not easily unscrew, relieve pressure by drilling a small hole in the center to vent-

pressure.

(9) Remove cylinder (17) and preformed packing (18). Discard cylinder if it was drilled.

(10) Withdraw piston assembly (15).

(11) Remove rubber seal (19), backup washer (20), metal gasket (25), adapter (21) and preformed packing (22).

(12) Remove bushing (23) and teflon packing set (24) from pump casting (12).

5-16