8. TROUBLE SHOOTING
LANTEC Product Support - Installation and Maintenance Manual
18
Install a pressure gauge in location
1, and apply a stall pull on the winch.
If the pressure is up to a maximum
and the bare drum line pull is less
than the specified line pull, the
trouble will be in the winch.
Disassemble winch according to
disassembly instructions and inspect.
Check that all gears turn freely for
"winching in" rotation. If gears are
found to be satisfactory, inspect the
hydraulic motor, according to the
service instructions for the hydraulic
motor.
5.After all the causes listed
above have been investigated
and it is found that the winch
will stall at maximum pressure
without developing the
maximum pull on the bare
drum, the trouble may be in the
winch.
Check oil level in the reservoir.
Check the suction line for damage
externally and internally. Replace
suction line if necessary.
4.The oil level in the reservoir
may be too low. The suction
line may be restricted or have
an air leak causing cavitation at
the inlet port. This will cause
the pump to make a whining
noise.
Check belts when pump is at full
pressure (stall pump on winch).
Tighten belts if they are found to be
slipping.
3.If the pump is belt driven, the
belts may be slipping.
Remove relief valve, disassemble
and clean parts thoroughly in a
suitable solvent. Reassemble and
install relief valve. Reset pressure
according to remedy under Trouble
8.1, Cause 1.
2.If this trouble occurs suddenly
after working at maximum pull,
a particle of dirt may be lodged
under the relief valve, holding it
partially open. If this is the
cause, a considerable loss in
line speed may be noticed as
the load on the cable
increases.
Location
Location 2
Haul In
Install a pressure gauge in location 1
and apply a stall pull on the winch. If
pressure is low, increase relief valve
setting until recommended pressure
is obtained.
1.Relief valve may be set too low.
REMEDYPROBABLE CAUSE
8.1. WINCH WILL NOT PULL LOAD
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