TM 9-2320-272-24-2
THIS TASK COVERS:
e. Accessory Drive Assembly
a. Accessory Drive Pulley Removal
f. Accessory Drive Installation
b. Accessory Drive Removal
g. Accessory Drive Pulley Installation
c. Accessory Drive Disassembly
d. Accessory Drive Cleaning and Inspection
INITIAL SETUP:
REFERENCES (TM)
APPLICABLE MODELS
TM 9-2320-272-24P
M939/A1
EQUIPMENT CONDITION
SPECIAL TOOLS
Mechanical puller kit (Appendix E, Item 102)
Air compressor removed (para. 4-31).
Power steering drivebelts removed (para. 3-230).
TOOLS
Radiator removed (para. 3-59).
Water pump drivebelt removed (para. 3-67).
General mechanic's tool kit (Appendix E, Item 1)
Dial indicator (Appendix E, Item 36)
GENERAL SAFETY INSTRUCTIONS
Inside micrometer (Appendix E, Item 82)
Outside micrometer (Appendix E, Item 80)
Keep fire extinguisher nearby when using
drycleaning solvent.
Torque wrench (Appendix E, Item 144)
Drycleaning solvent is flammable and toxic. Do
Arbor press
not use near an open flame.
Soft-faced hammer
When cleaning with compressed air, wear
MATERIALS/PARTS
eyeshields and ensure source pressure does not
Five screw-assembled lockwashers (Appendix D,
exceed 30 psi (207 kPa).
Item 589)
Gasket (Appendix D, Item 243)
Gasket (Appendix D, Item 183)
Dowel pin (Appendix D, Item 97)
Antiseize tape (Appendix C, Item 72)
GAA grease (Appendix C, Item 28)
1.
Remove nut (6) and washer (5) from accessory drive pulley (2).
2.
Using mechanical puller, remove accessory drive pulley (2) from accessory driveshaft (4).
3.
Remove gasket (1) from accessory drive pulley (2). Discard gasket (1).
NOTE
Perform step 4 only if dowel pin is damaged.
4.
Remove dowel pin (3) from accessory driveshaft (4). Discard dowel pin (3).
1.
Remove five screw-assembled lockwashers (9) from accessory drive front flange (10). Discard screw-
assembled lockwashers (9).
2.
Using soft-faced hammer, loosen accessory drive housing (8) and gasket (7) from engine block
gearcase (11) and remove housing (8) and gasket (7) from gearcase (11). Discard gasket (7) and clean
gasket remains from mating surfaces of accessory drive housing and engine block gearcase.
4-186
