Fig. 1 Fig. 4
LUBRICATION
The hydraulic system should use only high quality hydraulic oils from reputable suppliers. These
oils should contain additives to prevent foaming and oxidation in the system. All winch hydraulic
systems should be equipped with a return line filter capable of filtering 10-micron particles from
the system.
Tulsa Model 1200W Winches are shipped from the factory with SAE 90 EP gear lube in the
gearbox and SAE 20-20W motor oil in the brake section. This oil should be satisfactory for
operation in ambient temperatures from -10º F. to +110º F. If your work calls for operation in
temperatures outside this range, contact Tulsa Winch for recommendations.
Gearbox oil is drained by first removing the level plug (Item 28) in the center of the output shaft
(Item 29). The drain plug (Item 30) is then removed by rotating the drum so that the plug is
visible through the lower hole in the shaft (Item 29). Screw in a piece of 1" black pipe to allow the
oil to drain, then with a 3/8” hex wrench remove the drain plug located inside of 1” pipe (See Fig.
2). Examine the used oil for signs of significant metal deposits and then dispose of it in a proper
manner. Remove 1” pipe. Rotate drum so that the plug (Item 30) is visible through upper hole in
side plate. Install 1” pipe and elbow through upper hole in side plate (See Fig. 3). Fill the
gearbox with 1 1/2 to 2 quarts of new SAE 90 EP gear lube. Remove the 1” pipe and elbow.
Replace the center plug (Item 28) and plug (Item 30). Make sure the poppet breather (Item 27)
is not frozen and replace if necessary.
Drain the brake section by removing the drain plug (Item 40) under the motor and the breather
(Item 42) above the motor (See Fig. 4). On some units, the drain and fill plugs may be located
on the edge of the motor cover. Inspect the oil for signs of metallic particles and/or burning and
re-install the drain plug. Fill with 1/2 to 1 pint of SAE 20-20W motor oil.
Do not use EP type gear lubes in the brake section of this winch. EP lubes may prevent the
clutch from locking up, causing a load to fall and resulting in property damage, personal injury,
or death.
WARNING
Fig. 2 Fig. 3
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