OSS DISABLES FUNCTIONS (CONT). -726250793

TM 9-2320-364-34-1

Accumulator testing and charging can expose personnel to high pressure nitrogen. Use of proper safety

equipment is required to prevent serious injury or death.

NOTE

Accumulator can only be accurately charged

when there is 0 psi (0 kPa) present in all

crane hydraulic circuits.

Ensure that all crane control levers are

manually operated to the full up and down

positions. Failure to comply could result in

trapped hydraulic pressure, resulting in

incorrect accumulator charge readings.

PRESSURE TEST

(1) Manually operate all crane control

levers fully up and down.

(2) Remove two screws and guard.

(3) Remove valve stem cap from

accumulator fitting.

(4) Attach accumulator pressure test

hose to accumulator fitting.

(5) Read accumulator charge pressure.

(a) If there is not 190 to 210 psi

(1,310 to 1,448 kPa) present,

recharge accumulator

(Para 16-22).

(b) If there is 190 to 210 psi (1,310

to 1,448 kPa) present, perform

Steps (6) through (8) below, and

go to Step 2 of this Fault.

(6) Remove accumulator pressure test

hose from accumulator fitting.

(7) Install valve stem cap on accumulator

fitting.

(8) Install guard with two screws.