TM-9-2320-280-20-2

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 2 OF 3

JANUARY 1996

TM-9-2320-280-20-2 - Page 664 of 951

6-12. GEARED HUB INPUT SEAL REPLACEMENT

NOTE

Shim gaskets must be reused to maintain proper drive gear

bearing adjustment.

1.

Remove capscrew (1), washer (2), and vent line bracket (3) from drive gear retainer (4).

2.

Remove three capscrews (1), washers (2), drive gear retainer (4), and shim gasket(s) (5) from geared

hub (6).

3.

Install drive gear retainer (4) in vise with inserts and remove seal (7). Discard seal (7).

1.

Using driver handle and input seal installer, install seal (7) in drive gear retainer (4). Ensure

radius on outer diameter of seal (7) faces toward inside of geared hub (6).

2.

Install shim gasket(s) (5) and drive gear retainer (4) to geared hub (6) with three washers (2) and

capscrews (1). Tighten capscrews (1) to 38 lb-ft (52 N.m).

3.

Install vent line bracket (3) to drive gear retainer (4) with washer (2) and capscrew (1). Tighten

capscrew (1) to 38 lb-ft (52 N.m).

4.

Coat lip of seal (7) with lubricating oil.

b. Installation

a. Removal

This task covers:

a. Removal

b. Installation

INITIAL SETUP:

Tools

General mechanic’s tool kit:

automotive (Appendix B, Item 1)

Vise insert (Appendix B, Item 170)

Special Tools

Installer (Appendix B, Item 126)

Driver handle (Appendix B, Item 75)

Materials/Parts

Plain seal (Appendix G, Item 290)

Lubricating oil (Appendix C, Item 26)

Manual References

TM 9-2320-280-24P

Equipment Condition

Halfshaft removed (para. 6-9).

TM 9-2320-280-20-2

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