TM 5-2350-262-20-3
HYDRAULIC PRESSURE AT PORT 13L CHECK
NOTE
Have suitable container ready to catch oil.
Stop engine; relieve hydraulic pressure. Remove all test equipment and connect
HYDR FLTR-IN-13R hose (1) to high-pressure filter inlet port 13R..
Connect tee (2) and pressure measuring device (3) between high-pressure inlet port 13L
and HYDR FLTR-IN-13L hose (4).
Have assistant start engine, move SPRUNG/UNSPRUNG lever to SPRUNG, and
hold EJECTOR CONTROL lever in BACK. Read pressure measuring device (3). If
hydraulic pressure is not within limits, continue with the following step.
While still holding EJECTOR CONTROL lever in BACK, have assistant move left-hand
SUSPENSION CONTROL lever to RAISE. Read pressure measuring device (3). If
pressure is not within limits, main relief valve 13L requires adjustment.
Release EJECTOR and SUSPENSION CONTROL levers.
MAIN RELIEF VALVE 13L ADJUSTMENT
Loosen jamnut (5). Read pressure measuring device as assistant moves left-hand
SUSPENSION CONTROL lever to RAISE and EJECTOR CONTROL lever to BACK.
Rotate valve (6) clockwise to increase pressure; counterclockwise to decrease
pressure.
When pressure is 3,950-4,050 psi (27,235-27,925 kPa), tighten jamnut (5).
Verify pressure is now within limits by having assistant move left-hand SUSPENSION
CONTROL lever to RAISE and hold EJECTOR CONTROL lever in BACK. Read
pressure measuring device (3).
Stop engine; relieve hydraulic pressure.
Refer to TM 5-2350-262-20-2.
