EJECTOR CONTROL VALVE
EJECTOR CONTROL VALVE LEAKAGE TEST
Have suitable container ready to catch oil
Connecting into the main accumulator is designed to maintain
a steady supply of oil to the ejector cylinder while performing the
Disconnect accumulator RELIEF VLV-9 TEE hose (1) from suspension relief valve tee (2),
and cap tee (2).
Disconnect CONT VLV-21 hose (3) from elbow (4) on port 21 of ejector control valve, and
plug hose (3), Connect RELIEF VLV-9 TEE hose (1), tee (5), and pressure measuring
device (6) to elbow (4).
Start engine and hold EJECTOR CONTROL lever in the FORWARD position until
pressure measuring device (6) indicates 1,950-2,050 psi (13,445-14,135 kPa). Release
EJECTOR CONTROL lever to the NEUTRAL position, allow hydraulic pressure to
stabilize for thirty seconds, then time-pressure loss for one minute. If pressure loss is
greater than 100 psi (690 kPa) per minute, oil is leaking excessively past the control valve
spool. Stop engine and relieve hydraulic pressure.
Refer to TM 5-2350-262-20-2.