Honda FL5540K1 Operator's Manual page 44

TROUBLE SHOOTING
FOAMING OF OIL IN SYSTEM
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Low oil level Fill reservoir. Look for leaks.
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Water in oil Drain and replace oil.
Wrong kind of oil being used
specifications on proper oil.
Tighten or replace suction line.
Kink in oil suction line
contamination.
PUMP MAKES NOISE
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Fill reSefVOir. Check System
for leaks.
Oil viscosity too high
on proper oil.
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Cold oil Allow oil to warm up by operating
controls slowly under light load.
replace line between reservoir and pump.
Reservoir air vent plugged
plug, flush, and clean air vent.
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Air in oil Tighten or replace suction line.
Check system for leaks. Check pump shaft
seal.
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Replace pump.
PUMP LEAKS OIL
Replace seal.
42
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See
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Replace oil line.
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See specifications
P inched
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Remove vent
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LOAD DROPS WITH CONTROL VALVE IN
NEUTRAL POSITION
Leaking or broken oil lines from control
valves to cylinder
Oil leaking past cylinder packing or
-
Replace WOl n pads. I f Wear is
caused by contamination, clean hydraulic
system and determine source of dirt.
Oil leaking past control valve
Wear may be caused by
source of dirt.
CONTROL VALVE STICKS
Replace valve.
CONTROL VALVE LEAKS OIL
Worn or damaged
rings. If contamination has caused
Broken valve parts
CYLINDER LEAKS OIL
Damaged cylinder bowl
cylinder. Correct cause
-
Rod seal leaking
contamination caused seal to wear. look for
source. Wear may be caused by external as
well as internal contaminants. Check piston
rod for scratches or misalignment.
Loose parts -Tighten parts.
Piston rod damaged
or scratches that could cause seal damage or
allow oil leakage. Replace defective cylinder.
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Check for leaks.
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Clean or
OR WORKS HARD
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rings Replace
rings
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Replace parts or
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Replace
of
damage.
Replace seal. I f
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Check rod for nicks