BORING CASE AND GEARS REMOVAL, REPAIR, AND REPLACEMENT (TRUCK M764) - continued

TM 9-2320-209-34-2-2

Working through boring case inspection hole (1), mount dial indicator on

housing and set stem against side of rack drive gear tooth (2) as shown.

NOTE

When measuring backlash, make sure second reduction

drive pinion (3) does not turn. If pinion turns, back-

lash readings will be wrong.

Turn rack drive gear (4) away from dial indicator until rack drive gear

tooth (5) touches pinion tooth (6) as shown in view A.

Set dial indicator to read 0.

Turn rack drive gear (4) toward dial indicator until rack drive gear tooth

(7) reaches other side of pinion tooth (6) as shown in view B. Note reading

on dial indicator.

IF READING ON DIAL INDICATOR IS NOT BETWEEN .008 TO .030 INCH, GO TO

FRAME 7.

IF READING ON DIAL INDICATOR IS BETWEEN .008 TO .030 INCH, GO TO

FRAME 8

17-519