Refer to TM 5-2350-262-20-2
SUSPENSION RELIEF VALVE PRESSURE TEST
Before performing any hydraulic troubleshooting in bowl, move
ejector forward and engage the ejector lock. Failure to comply may
result in severe injury or death to personnel.
Have suitable container ready to catch oil.
Start engine, move ejector forward, engage ejector lock, stop engine, and relieve
Disconnect RELIEF VLV-9 hose (1) and loosen jamnut (2) on suspension relief valve tee
(3). Plug hose (1).
Disconnect RELIEF VLV-9 tube (4) from suspension relief valve tee (3) and rear left-hand
main manifold tee (5). Cap tee (5).
Rotate suspension relief valve tee (3) 90 toward front of vehicle. Tighten jamnut (2).
Disconnect LH MAIN MANF TOP-17R hose (6) from port 17R on left-hand main
manifold (7) and connect it to suspension relief valve tee (3). Cap port 17R.
Connect pressure measuring device (8) to suspension relief valve tee (3).
Have assistant start engine, move SPRUNG/UNSPRUNG lever to SPRUNG and
SUSPENSION CONTROL lever to LOWER. Read pressure measuring device (8).
SUSPENSION RELIEF VALVE ADJUSTMENT
Adjust the pressure as follows: remove cap (9) from suspension relief valve adjusting
shaft (10) and loosen jamnut (11).
Turn adjusting shaft (1) clockwise to increase pressure; counterclockwise to decrease
pressure. Read pressure measuring device (8). Tighten jamnut (11) and replace cap (9).
Refer to TM 5-2350-262-20-2.