MAIN RELIEF VALVE PRESSURE TEST
Before performing any hydraulic troubleshooting in bowl, move
ejector forward and disable it by disconnecting ejector cylinder
from hydraulic system. Failure to comply may result in severe
injury or death to personnel.
Have suitable container ready to catch oil.
Have assistant start engine and move ejector forward, stop engine and relieve hydraulic
Disable ejector by disconnecting CONT VLV-21 hose (1) from elbow (2) at port 21 and
CONT VLV-22 hose (3) from elbow (4) at port 22 on ejector control valve. Cap and plug
hoses and fittings.
Connect tee (5) and pressure measuring device (6) between HYDR FLTR-IN-13R hose
(7) and high pressure inlet port 13R.
Have assistant start engine, move SPRUNG/UNSPRUNG lever to SPRUNG and move
EJECTOR CONTROL lever to BACK. Read pressure measuring device (6).
While simultaneously holding EJECTOR CONTROL lever in BACK, have assistant move
right-hand SUSPENSION CONTROL lever to RAISE. Read pressure measuring device