Landoll 345F, Operator'S Manual

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TROUBLESHOOTING
5-7
SYSTEM OPERATES ERRATICALLY Air in the system Check suction side of system for leaks.
Repair leaks.
Cold oil Allow ample warm-up time. Use proper
weight oil for operating temperature
Dirty or damaged components Clean or repair as needed
Restriction in filters or lines Clean and/or replace filter or lines
Not enough oil in system Fill and check for leaks
SYSTEM OPERATES SLOWLY Oil viscosity too high, or “cold oil” Allow oil to warm up before operating.
Low pump drive speed Increase engine speed (check pump
owners manual for specifications).
Low oil level Check reservoir and add oil as
necessary.
Air in system Check suction side for leaks. Repair
leaks.
Badly worn pump, valves, cylinders, etc. Repair or replace faulty component(s)
as necessary.
Restrictions in lines or filter Clean and/or replace filter or lines.
Improper adjustments Check orifices, relief valves, etc. Adjust
as necessary.
Oil leaks Tighten fittings. Replace seals, gaskets
and damaged lines.
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.)
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, dirty oil Replace, clean, or add oil as needed
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
LEAKY PUMP Damaged or worn shaft seal Replace seal and check for
misalignment
Loose or broken parts Tighten or replace
PROBLEM PROBABLE CAUSE SOLUTION