TM-9-2520-215-34

CROSS-DRIVE TRANSMISSION ASSEMBLY

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

DECEMBER 2005

TM-9-2520-215-34 - Page 111 of 508

TM 9--2520--215--34

0024 00--1

DETERMINING NOMINAL SHIM FOR STEER BEVEL DRIVE GEAR

0024 00

THIS WORK PACKAGE COVERS:

Determining Nominal Shim for Steer Bevel Drive Gear

DETERMINING NOMINAL SHIM FOR STEER BEVEL DRIVE GEAR

1. If original shim pack thickness is not known, or if certain new parts have replaced original parts, nominal shim

thickness must be calculated as outlined below:

2. Replacement of any of the following components may effect shim pack thickness:

Transmission housing

Transmission main support bearing support

Transmission main support bearing

Output bevel gear

Steer--drive bevel gear set

Thrust washer

Main bearing retainer

3. Remove low and reverse range planetary carrier assemblies from transmission housing (WP 0074 00).

4. Record dimension indicated by MD2 on Figure 1 of WP 0020 00. This dimension is etched on steer bevel drive

gear.

NOTE

Record backlash dimension etched on this gear for use below.

5. Measure and record dimension indicated by A on Figure 1 of WP 0020 00. When this measurement is made,

main bearing retainer is installed without any shims and thrust washer is in its place. Thickness of parallel bar

must be subtracted from micrometer depth gage reading to obtain dimension A.

A