Dover TWG TULSA WINCH 506W Service Manual - Page 7

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Gearbox oil is drained by rotating the drum so that the drain plug

lower hole in the side plate

drain, and then with a hex wrench remove the drain plug located inside of the 1" pipe

Examine the used oil for signs of significant metal deposits and then dispose of it in a proper

manner. Remove the 1" pipe.

Rotate the drum so that the port is visible through the upper hole in the side plate

with elbow into the upper hole in the side plate

the center of the shaft. Fill the gearbox with .75 quart of EP-90 oil. Remove the pipe and elbow

(Item 33)

then replace the plugs

oil type and grade for your application.

Drain the brake section by removing the drain plug

(Item 30)

above the motor

and reinstall the drain plug. Fill with .25 quart of non-EP oil and reinstall the vent

Chart Pg. 6 this manual for recommended oil type and grade for your application.

Wire rope should be installed as shown in the drawing below. Note that the wedge will satisfy cable

diameters from 7/16" to 5/8", depending on how it is installed in the cable drum.

(Item 50) (See Fig 1)

. Screw in a piece of 1" pipe to allow the oil to

(See Fig. 3)

See the Oil Chart on page 6 of this manual for the recommended

(See Fig. 4)

. Inspect the oil for signs of metallic particles and/or burning

WIRE ROPE

(Item 33)

. Remove the plug

(Item 40)

under the motor along with the vent

is visible through the

(See Fig. 2)

Install a 1" pipe

(Item 33)

located in

(Item 30). See Oil