High Pressure Ball Valve and fittings
installed on a loader.
Lift Cylinder Rod End Hose.
Tee Fitting.
High Pressure Ball Valve.
Drain Hose.
21.2.4. Install a pressure gauge in the lift circuit base end.
21.2.5. With high pressure ball valve in off position, place a load in the bucket and raise loader to some height. The
load in the bucket and the lift height should be such that it induces a target reference pressure of 1500 psi in the
cylinders.
21.2.6. Disconnect rod end lift cylinder circuit from loader valve by disconnecting quick coupler. If quick coupler
does not exist install one in line before proceeding with this test.
21.2.7. Slowly open high pressure ball
valve directing drain hose to drain pan.
Note: If oil flows out of drain hose and
loader lowers, cylinders will need to be
repaired or replaced.
Note: If no flow is seen, no repair of lift
cylinder is required.
21.2.8. Reconnect rod end of lift cylinder
circuit by reconnecting quick coupler.
21.2.9. Lower loader to ground. Relieve
pressure and remove high pressure ball
valve and tee fitting. Re-connect loader
hose and fitting.
Base end
Of lift
cylinder.
Rod end
of lift
cylinder.
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