ZF Repair Manual: ZF63IV, ZF80IV, ZF80-1IV

Repair Manual and Spare Parts List

Section 4: Assembly

4.3 Assembling input shaft seal

Apply thin coat of Loctite 574 on periphery of new radial

shaft seal rings (item 1-2, Fig. 4-3a and Fig. 4-3b).

Put a new shaft seal onto the mounting mandrel.

Drive shaft seal uniformly into the housing by tapping

slightly onto the mounting mandrel.

NOTE

The sealing lip (A) on the shaft seal should point into

the inside of the housing. The radial shaft seal must

be adjusted so that the sealing lip does not run on

the former running point of the shaft.

Only for transmission size i = 2.0 and i = 2.5.

The radial shaft seal ring (item 1, Fig. 4-3b) of the in-

put half of the housing can only be mounted after the

housing halves have been mounted with the gear set.

ALTERNATIVELY (Fig. 4-3c)

Smear Loctite 574 on the outside diameter of the in-

put shaft seal using a roller.

Lubricate the inside lip with Kluber Staburags

NBU30 grease.

Insert the input shaft seal into input shaft (item 2)

using the appropriate bushing p/n 20.0012.01 (item

1).

Use mandrel p/n 20.0012.02 (item 3) to position the

input shaft seal in the correct way.

4.4 Mounting the breather filter

NOTA

Due to the taper thread, the breather (item 1, Fig. 4-4)

do need not to be coated with Loctite or equipped

with a sealing washer.

Tighten

carefully

during assembly (hand-tight).

Check leakage during a later test run. Retighten slightly

if it leaks.

FIG. 4-3a

FIG. 4-3b

FIG

.4-4

FIG. 4-3c