Installation of Oil Seals

TM 55-4920-424-13&P

d. See figure 5-5. Using a machinist scribe, or equivalent too, insert scribe between metal part of seal (2) and

rubber part; then pry seal loose, and forward.

e. When seal, or metal cover of seal is pried sufficiently forward, use a needlenose pliers, or an equivalent tool, to

complete seal removal.

f. Cover all openings in speed increaser to prevent entry of foreign particles.

7-38. Installation of Oil Seals. (See fi gure 5-5)

a. Lubricate inner lip of seal (2) with lubricating oil (item 7, App D).

CAUTION

To prevent damage to seals, always install seals with seal part number and

manufacturer's name facing outward.

b. Install seal on speed increaser using an insert tool, or equivalent driver tool, with a 1.5-inch ID and a 2.5-inch OD.

c. Install seal so that it bottoms against flange or shoulder of housing.

d. Use care to prevent deformation of seal and seal contact surface.

e. Ensure that seal is flush with recessed flange surface of housing within 0.010 inch.

f. Install generators and cover assembly (72, figure 5-1).

7-39. OIL SIGHT GLASS.

7-40. Removal of Oil Sight Glass. (See figure 5-5.)

a. Drain lubricating oil from speed increaser. Refer to paragraph 2-6, and perform the applicable steps.

b. Remove oil sight glass (5) by unscrewing assembly from speed increaser.

Remove and discard O-ring (4).

Cover opening to prevent entry of foreign particles.

7-41. Installation of Oil Sight Glass. (See figure 5-5.)

a. Installation of oil sight glass (5) is the reverse of removal.

b. Apply a light film of lubricating oil (item 4, App D) to new O-ring (4). Install new oil sight glass and new O-ring (4)

on speed increaser.

c. Service speed inc reaser with lubricating oil. Refer to paragraph 2-6 for the servicing procedure.

7-11