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HYDRAULIC SYSTEM (CONTINUED)
SYMPTOM
OVER HEATING OF
OIL IN SYSTEM
FOAMING OF OIL
NOISY PUMP
LEAKY PUMP
CYLINDERS MOVE WITH
CONTROL VALVE IN
NEUTRAL POSITION
CONTROL VALVE LEAKS
CYLINDER LEAKS
CYLINDERS DO NOT
FUNCTION, OR CREEP
WITH PTO DISENGAGED
5-6 HYDRAULIC POWER SUPPLY ENGINE PACKAGE
To troubleshoot the engine in the hydraulic engine package, please refer to the owners manual that
was provided with the engine package.
PROBLEM: REMEDY
Oil passing through relief valve for excessive time: return
control valve to neutral when not in use.
Incorrect, low, dirty oil: use recommended oil. 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.
Incorrect, low, dirty oil: replace, clean or add oil as needed.
Air leaks: check suction line and component seals for suction
leaks. Replace defective parts.
Low, incorrect, foamy oil: replace, clean, or add oil as
needed.
Suction line plugged: clean out obstruction or replace line.
Flush system, replace filter.
Damaged or worn shaft seal: Replace seal and check
for misalignment.
Loose or broken parts: Tighten or replace.
Leaking cylinder seals or fittings: Replace worn seals or fit-
tings.
Control valve not centering when released: Check
linkage for
binding and repair.
Valve damaged: Repair or replace.
Seals damaged or worn: Replace.
Seals worn or damaged: Replace.
Rod damaged: Replace.
Barrel damaged: Replace.
Leaking fittings or cylinder seals: Tighten loose fittings.
Replace worn seals or fittings.
Piloted check valve or O-ring leak: Replace defective compo-
nent.
5-7
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