5-8 F-1005-1018
TROUBLESHOOTING GUIDE
TABLE OF CONTENTS
Hydraulic Power Supply
Engine Package
To troubleshoot the engine in the hydraulic engine
package, please refer to the owner’s manual that was
provided with the engine package.
SYSTEM OPERATES TOO FAST Wrong size or incorrectly adjusted
restrictor
Replace or adjust as necessary.
Engine running too fast Reduce engine speed.
OVER HEATING OF OIL IN SYSTEM Oil passing through relief valve for
excessive time
Return control valve to neutral when not
in use.
Incorrect, low, dirty oil Use recommended oil (See Table 4-1
on page 4-3). Fill reservoir with
clean oil. Replace filter.
Engine running too fast Reduce engine speed.
Excessive component internal leakage Repair or replace component as
necessary.
Restriction in filters or lines Clean and/or replace filter or lines.
Insufficient heat radiation Clean dirt and mud from reservoir and
components.
Malfunctioning component Repair or replace
Excess oil going to dock level circuit Adjust flow divider for 2.5 to 3.1 GPM
flow.
FOAMING OF OIL Incorrect, low, or dirty oil Replace, clean or add oil as needed.
Water in oil Replace oil.
Air leaks Check suction line and component seals
for suction leaks. Replace defective
parts.
NOISY PUMP Low, incorrect, foamy oil Replace, clean, or add oil as needed.
Suction line plugged Clean out obstruction or replace line.
Flush system, replace filter.
Pump damaged Repair or place.
LEAKY PUMP Damaged or worn shaft seal Replace seal and/or shaft and check for
misalignment.
Loose or broken parts Tighten or replace.
CYLINDERS MOVE WITH CONTROL
VALVE IN NEUTRAL POSITION
Leaking cylinder seals or fittings Replace worn seals or fittings.
Control valve not centering when
released
Check linkage for binding and repair.
Valve damaged Repair or replace.
CONTROL VALVE LEAKS Seals damaged or worn Replace.
CYLINDER LEAKS Seals worn or damaged Replace.
Rod damaged Replace.
Barrel damaged Replace.
CYLINDERS DO NOT FUNCTION, OR
CREEP WITH PTO DISENGAGED
Leaking fittings or cylinder seals Tighten loose fittings.
Replace worn seals or fittings.
Piloted check valve or O-ring leak Replace defective component.
PROBLEM PROBABLE CAUSE SOLUTION
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