10
Form MHD56349 Edition 1
General Lubrication
Correct lubrication is one of the most important factors in maintaining efficient
winch operation.
1. The recommended grade of oil must be used at all times. Use of unsuitable oil
may result in excessive temperature rise, loss of efficiency and possible damage
to lubricated components. Refer to ‘Recommended Lubricants’ section on page
10.
2. It is recommend that the first oil change be done after approximately 50 hours
initial operation. Always inspect removed oil for evidence of internal damage
(metal shavings, dirt, water, etc.). Thereafter, drain and replace oil according to
Table 9, “Lubrication Intervals,” on page 9.
3. Always inspect removed oil for evidence of internal damage or contamination
(metal shavings, dirt, water, etc.). If indications of damage are noted,
investigate and correct before returning winch to service.
4. After winch operation, allow oil to settle before topping off.
5. Always collect lubricants in suitable containers and dispose of in an
environmentally safe manner.
Recommended Lubricants
NOTICE
• Do NOT use synthetic lubricants in air motor. Synthetic lubricants will result
in oil blowing by piston rings.
Motor
The motor is splash lubricated by oil in motor housing and has no other means of
lubrication. It is therefore important to use only good quality, non-detergent motor
oil to ensure maximum performance and minimum downtime for repairs. Refer to
‘Recommended Lubricants’ section on page 10.
Oil capacity for the motor is 3 quarts (2.8 litres). Add oil through filler opening until
oil flows from level plug hole. Add oil slowly to prevent spilling.
The motor should be level-checked daily or at the start of each shift after any
accumulated water has been drained off. When motors are operated in temperatures
below freezing, wait long enough at the end of shift for water to separate from oil
but not long enough for it to freeze. Drain water then refill to level plug, located on
side of motor housing. If desired, all oil may be drained at end of shift and motor
refilled with new oil.
Reduction Gear Assembly
Refer to Dwg. MHP0140 on page 11,
A.
Fill Plug Position;
B.
Drum;
C.
Reduction Gear
Assembly;
D.
Inboard Upright;
E.
Level Plug Position.
The reduction gear is filled to the correct levels prior to shipment from the factory.
Check oil level before initial winch operation. This component is splash lubricated by
oil in the housing and has no other means of lubrication. It is therefore important to
use high quality Extreme Pressure (EP) rust and oxidation inhibited gear oil to ensure
maximum performance and minimum down time for repair.
CAUTION
• Do not over fill. Excess oil will reduce operating efficiency and increase oil
temperature.
To ensure correct performance, highest efficiency and long life, it is essential that
lubricating oil be maintained at correct level. Rotate drum until fill plug is located at
top dead center then add oil up to level plug hole. Refer to Table 13, “Reduction
Gear Capacities,” on page 10 for reduction gear oil capacities.
Disc Brake
CAUTION
• Do not attempt to lubricate disc brake with grease. The breather plug on top
of the brake housing must not be used as a grease fitting.
Refer to Dwg. MHP1348 on page 11,
A.
Breather Plug;
B.
Drain Plug.
The friction plates and drive plates are in a self contained oil bath and have no other
means lubrication. After an oil change or winch overhaul remove the breather plug
and pour a small amount of oil [4 to 6 ounces (0.2 litres)] through breather hole in
brake housing. Allow oil to fully settle between fillings.
NOTICE
• If too much oil is added excess oil will be discharged through breather plug
when control valve is actuated.
Seals and Bearings
If winch is disassembled, clean all parts thoroughly and coat bearings and seals with
clean grease. Refer to ‘Recommended Lubricants’ section on page 10. Use sufficient
grease to provide a good protective coat. Lubricate grease fittings monthly with 2 or
3 pumps of a grease gun.
Wire Rope
Follow the wire rope manufacturers’ instructions. At a minimum, observe the
following guidelines.
1. Clean with a brush or steam to remove dirt, rock dust or other foreign material
on the surface of the wire rope.
CAUTION
• Do not use an acid-based solvent. Only use cleaning fluids specified by the
wire rope manufacturer.
2. Apply a wire rope lubricant,
Ingersoll Rand
LUBRI-LINK- GREEN® or ISO VG 100
(SAE 30W) oil.
3. Brush, drip or spray lubricant weekly, or more frequently, depending on severity
of service.
Table 10: Reduction Gear Recommended Lubricants
Temperature
Type Oil
Below 32° F (0° C)
2 EP (ISO VG 68)
32° to 80° F (0° to 27° C)
3 EP (ISO VG 100) *
Above 80° F (27° C)
4 EP (ISO VG 150)
* Units are shipped from factory with 3 EP (ISO VG 100) lubricant. Refer to Table 13
on page 10 for reduction gear oil capacities
Table 11: Air Motor and Disc Brake Recommended Lubricants
Temperature
Type Oil
Below 32° F (0° C)
ISO VG 32 (SAE 10W)
32° to 80° F (0° to 27° C)
ISO VG 68 (SAE 20W) *
Above 80° F (27° C)
ISO VG 100 (SAE 30W)
* Units are shipped from factory with ISO VG 68 (SAE 20W) lubricant. Motor oil
capacity is approximately 3 quarts (2.8 litres).
Table 12: Recommended Grease
Temperature
Type Oil
-20° to 50° F
(-30° to 10° C)
EP 1 multipurpose
lithium based grease
30° to 120° F
(-1° to 49° C)
EP 2 multipurpose
lithium based grease
Table 13: Reduction Gear Capacities
Capacity
quarts
litres
2
1.9
