User Manual

TROUBLE SHOOTING YOUR HYDRAULIC SYSTEM

PROBLEM POSSIBLE CAUSES REMEDY

Excessive heating Relief valve set incorrectly Readjust valve to system

because of component specifications pressure;

conditions usually 100 -150 psi above

compensator setting

Internal oil leakage (pump) Repair or replace pump

Viscosity of oil too high Check recommendations to

start-up information

Leaking valves Repair or replace

Improper functioning of oil Inspect cooler and see that it

cooler (if installed) is working properly

Restricted lines If lines are crimped, replace; if

partially plugged for any

reason, remove obstruction

Scored or damaged rotor. Check case drain line for

valve plate, pistons and piston excessive drain flow; if

bores, or other internal moving possible filter drain flow and

parts check for metal (brass or

steel) filings or particles;

replace damaged parts