TM 5-3805-291-23-2
PILOT OIL ACCUMULATOR MAINTENANCE - CONTINUED
0150 00
TEST AND CHARGE - CONTINUED
Test - Continued
2.
Start engine and run at high idle (TM 5-3805-291-10). Pressure on dial gage should read 510 50 psi (3,515 345 kPa).
3.
Stop engine (TM 5-3805-291-10).
4.
Turn engine start switch to ON position but do not start engine (TM 5-3805-291-10).
5.
Move implement levers through full range of travel to relieve any pressure in system (TM 5-3805-291-10).
6.
Turn engine start switch to OFF position (TM 5-3805-291-10).
7.
Move joystick to lower boom. Pressure on dial gage should decrease steadily.
8.
When pressure is approximately 290 15 psi (2,000 100 kPa), pressure will suddenly drop to zero. Last reading
before pressure drop is correct pressure of accumulator charge.
Discharging Pilot Oil Accumulator
N OT E
Do not attach hose assembly to T when you are discharging the accumulator.
1.
Remove cap (4) from pilot oil accumulator (2) to locate nitrogen charging valve (5).
2.
Remove protective cap (6) from nitrogen charging valve (5).
3.
Attach hose assembly (7) to nitrogen charging chuck.
4.
Turn T handle (8) on nitrogen charging chuck fully counterclockwise.
5.
Attach hose assembly (7) with nitrogen charging chuck to nitrogen charging valve (5).
WAR N I N G
Point open end of hose assembly away from work area and personnel. Failure to follow this warning may
result in injury to personnel.
6.
Turn T handle (8) fully clockwise to open nitrogen charging valve (5) and remove pilot oil accumulator (2) from
machine.
427-C1142
427-C1141
0150 00-5
