Dover TWG LANTEC 200 - 8.2. CONSIDERABLE REDUCTION IN LINE SPEED; 8.3. REVERSE SPEED IS SLOWER THAN FORWARD SPEED

TROUBLE SHOOTING (cont’d)
LANTEC Product Support - Installation and Maintenance Manual
19
Remove and inspect pump. If
satisfactory, consult the disassembly
instructions for the winch and remove
and inspect the motor according to the
service instructions for the hydraulic
motor.
3. If this trouble has increased
gradually, the hydraulic
pump or winch motor may
be worn.
Same as Remedy 4 of 8.1.2. Same as 8.1, Cause 4
Same as Remedy 2 of 8.1.1. Same as 8.1, Cause 2
REMEDYPROBABLE CAUSE
8.2. CONSIDERABLE REDUCTION IN LINE SPEED
Change to a lighter weight oil in the
Hydraulic System (and therefore Brake
Housing). Check the flow of oil from the
vent line of the winch while the winch is
run at full speed reverse for 2 or 3
minutes with the outlet circulating line
removed. If the flow continues, remove
the motor as per disassembly
instructions. Disassemble and inspect
O-Rings in the brake cylinder according
to the service instructions for the
hydraulic motor.
3. Hydraulic oil in Brake
Housing may be too thick
causing a high resistance
to rotation at the brake
plates and causing the
relief valve to by-pass.
Same as Remedy 1 of 8.1.2. Same as 8.1, Cause 1.
Check the travel of the control valve
spool. The spool travel should be the
same in both directions.
1. Control valve may be
restricted in its travel.
REMEDYPROBABLE CAUSE
8.3. REVERSE SPEED IS SLOWER THAN FORWARD SPEED