TM-9-2350-238-34-1

HULL AND RELATED COMPONENTS, RECOVERY VEHICLE, FULL TRACKED: LIGHT, ARMORED, M578

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

MARCH 1994

TM-9-2350-238-34-1 - Page 111 of 292

caution

TM 9-2350-238-34-1

11

Clean any remaining oil from output gear

teeth and apply grease or white ename l

on four or five teeth. Use input shaft

opening in input drive for access.

12

Turn shaft counterclockwise and rotat e

output gears at least one complet e

revolution .

13

Remove three jacking screws and clutc h

drive (9).

14

Examine output gear matching gear teet h

and determine gear tooth wear pattern. I f

backlash is correct (fig. 2-1), the gear

tooth bearing contact area shall be equal

in length and centered on tooth face within

10 percent of length and width. The

contact area should be 0.3 to 0.7 in. (7.6

to 17.8 mm).

Contact areas extending to either end

of the teeth are not acceptable.

15

Repeat steps 5 thru 13 if wear pattern is

not correct (fig. 2-2 and 2-3). If wear

pattern cannot be reached through proper

shimming, repair generator drive ( p

2-116) .

2-9 9