TM-9-2350-238-20-1

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

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL

MAY 1994

TM-9-2350-238-20-1 - Page 895 of 1364

2-150. MAINTENANCE OF DRIVE HUB SPROCKETS AND RELATED

TM 9-2350-238-20-1

PARTS.

This task covers: a.

Removal

b.

Inspection/Repair

c.

Installation

INITIAL SETUP

Tools and Special Tools

Automotive maintenance and repair shop

equipment: organizational maintenance,

common no. 1 (less power) (item 80,

appx B)

●

Breaker bar (3/4-in. drive)

●

Socket (1-1/2-in., 3/4-in. drive)

●

Torque wrench (0 to 170 ft-lb)

●

Torque wrench 0 to 600 ft-lb)

●

Wire brush

Hoist

Hub and sprocket lifting sling (item 25,

appx G)

Sprocket wear gage (item 7, appx G)

Materials/Parts

Dry cleaning solvent (item 16, appx C)

Emery cloth (item 11, appx C)

Hydraulic fluid (item 21, appx C)

Lockwasher (22)

Olive drab enamel (item 18, appx C)

Primer (item 31, appx C)

Personnel Required

Two

References

TM 9-2350-238-24P-1

Equipment Conditions

2-873 Tracks removed

1

2

3

4

NOTE

The following procedures are written

and illustrated for the left drive hub

sprocket, but apply to both the left

and right drive hub sprockets.

Remove ten nuts (1).

Remove three hexagon head capscrews

(2) and three Iockwashers (3) properly

spaced to align with mounting holes in hub

and sprocket lifting sling.

Using three removed hexagon head

capscrews (2), attach hub and sprocket

lifting sling to sprocket wheel (4).

Attach hoist to hub and sprocket lifting

sling, and remove drive hub sprocket (5).

Remove sling from sprocket wheel (4).

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