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278
80-160
Maintenance
Winch Lubrication
RECOMMENDED PLANETARY GEAR OIL
Field experience, supported by engineering endurance tests, indicates the use of the proper gear oil and
a program of regular preventative maintenance will help provide extended gear train life and reliable hoist
brake performance. The information below is intended to assist in determining which lubricant is best
suited to your application.
Please refer to the winch manufacturer’s documentation (included with your manual pack) for specific
recommendations and specifications of the proper oil to use in your winch.
FAILURE TO USE THE PROPER TYPE AND VISCOSITY OF PLANETARY GEAR OIL
MAY CONTRIBUTE TO INTERMITTENT BRAKE CLUTCH SLIPPAGE WHICH COULD
RESULT IN PROPERTY DAMAGE, SEVERE PERSONAL INJURY OR DEATH.
SOME GEAR LUBRICANTS CONTAIN LARGE AMOUNTS OF EP (EXTREME PRESSURE) AND ANTI-
FRICTION ADDITIVES WHICH MAY CONTRIBUTE TO BRAKE CLUTCH SLIPPAGE OR DAMAGE TO
BRAKE FRICTION DISCS OR SEALS. OIL VISCOSITY WITH REGARD TO AMBIENT TEMPERATURE IS
ALSO CRITICAL TO RELIABLE BRAKE CLUTCH OPERATION. TESTS INDICATE THAT EXCESSIVELY
HEAVY OR THICK GEAR OIL MAY CONTRIBUTE TO INTERMITTENT BRAKE CLUTCH SLIPPAGE.
MAKE CERTAIN THAT THE GEAR OIL VISCOSITY USED IN YOUR HOIST IS CORRECT FOR YOUR
PREVAILING AMBIENT TEMPERATURE.
Unless otherwise specified, it is recommended that the gear oil be changed after the first (100) hours or
two (2) months of machine operation, then every one thousand (1,000) hours or six (6) months, whichever
occurs first. 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.
A warm-up procedure is recommended at each startup and is essential at ambient temperatures below
+40°F (4°C).
The prime mover should be run at its lowest recommended RPM with the hydraulic hoist control valve
in neutral allowing sufficient time to warm up the system. The hoist should then be operated at low
speeds. Raise and lower, several times to prime all lines with warm hydraulic oil and to circulate gear
lubricant through the planetary gear sets.
Failure to properly warm up the hoist, particularly under 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.