12
4. Mounting Bolts
Retorque winch mounting hardware after the first 100 hours
of operation, then every 1,000 operating hours or six months,
whichever occurs first.
5. Rope
Inspect entire length of rope according to rope manufactur-
er’s recommendations.
6. Hydraulic Power Supply
The original filter element should be replaced after the first
50 hours of operation, then every 500 operating hours or
three months, or in accordance with the equipment manu-
facturer’s recommendations.
7. Warm-up Procedure
A warm-up procedure is recommended at each start-up and
is essential at ambient temperatures below +40°F (4°C).
The hydraulic power supply should be run at its lowest rec-
ommended RPM with the hydraulic winch control valve in
neutral allowing sufficient time to warm up the system. The
winch should then be operated at low speeds, forward and
reverse, several times to prime all lines with warm hydraulic
oil, and to circulate gear lubricant through the planetary gear
sets.
Failure to change gear oil at these suggested mini-
mum intervals may contribute to intermittent brake
slippage which could result in property damage, se-
vere personal injury, or death.
!
WARNING
!
Failure to properly warm up the winch, particularly un-
der low ambient temperature conditions, may result in
temporary brake slippage due to high back pressures
attempting to release the brake, which could result in
property damage, severe personal injury, or death.
!
WARNING
!
Vent 1–5 psi
2. Oil Change
The gear oil should be changed after the first 100 hours of
operation, then every 1,000 operating hours or six months,
whichever occurs first. The gear oil must be changed to re
-
move wear particles that impede the reliable and safe opera-
tion of the brake clutch and erode bearings, gears and seals.
The gear oil should also be changed whenever the ambient
temperature changes significantly and an oil from a different
temperature range would be more appropriate. Oil viscos-
ity with regard to ambient temperature is critical to reliable
brake clutch operation. Our tests indicate that oil with ex-
cessive viscosity or high EP content may contribute to inter-
mittent brake clutch slippage. Make certain that the gear oil
viscosity is correct for your prevailing ambient temperature.
Refer to Recommended Planetary Gear Oil section of this
manual for additional information.
3. Vent Plug
The vent plug is located at the motor mount area. It is im-
portant to keep this vent clean and unobstructed. Whenever
gear oil is changed, remove vent plug, clean in solvent and
reinstall.
Do not paint over the vent or replace with a solid plug.
PREVENTIVE MAINTENANCE
