SUSPENSION RAISE/LOWER RELIEF VALVE TEST
This test is done at both the right-hand and left-hand suspension
raise/lower relief valves. For the right-hand valve, install test
equipment at port 3R and actuate the right-hand SUSPENSION
CONTROL lever. For the left-hand valve, install test equipment
at port 3L and actuate the left-hand SUSPENSION CONTROL
Have suitable container ready to catch oil.
Install tee (1) and pressure measuring device (2) between elbow (3) on port 3R or 3L and
port 3 hose (4).
Have assistant start engine and move SUSPENSION CONTROL lever to RAISE. Read
pressure measuring device (2).
SUSPENSION RAISE/LOWER RELIEF VALVE ADJUSTMENT
Loosen jamnut (5) on port 3R or 3L of suspension raise/lower relief valve.
With SUSPENSION CONTROL lever still in RAISE, turn adjusting screw (6) clockwise to
increase pressure; counterclockwise to decrease pressure.
Tighten jamnut (5). Stop engine; relieve hydraulic pressure.
Refer to TM 5-2350-262-20-2.