TM 9-2320-260-34-1
9-2. FRONT AXLE ENGAGEMENT AIR CYLINDER MAINTENANCE
THIS TASK COVERS:
a. Removal
d. Assembly
e. Installation
b. Disassembly
c. Cleaning and Inspection
INITIAL SETUP
MATERIALS/PARTS (Contd)
APPLICABLE MODELS
Locknut (Appendix D, Item 174)
All
Lubricating oil (Appendix C, Item 21)
TOOLS
Sealing compound (Appendix C, Item 43)
General mechanic's tool kit
Antiseize tape (Appendix C, Item 50)
(Appendix B, Item 1)
REFERENCES (TM)
Torque wrench, 3/8-in. dr.
TM 9-2320-260-10
(Appendix B, Item 4)
TM 9-2320-260-34P-1
MATERIAIS/PARTS
EQUIPMENT CONDITION
Four tab lockwashers
Air tanks drained (TM 9-2320-260-10).
(Appendix D, Item 523)
Two seals (Appendix D, Item 432)
Two gaskets (Appendix D, Item 140)
a. Removal
1. Remove air line (6) and adapter (5) from cover (3).
2. Bend tabs on four tab lock washers (2) away from heads of screws (1) and cover (3) and remove
four screws (1), tab lockwashers (2), cover (3), and gasket (7) from air cylinder (4). Discard tab
lockwashers (2) and gasket (7).
3. Remove locknut (8) from front end of shifter shaft (11). Discard locknut (8).
4. Remove air cylinder (4), piston (9), and gasket (10) from shifter shaft (11) and front output shaft
cover (12). Discard gasket (10).
1. Remove piston (9) from air cylinder (4).
2. Remove two retainer rings (13), retainers (14), springs (15), and washers (17) from piston (9).
3. Remove two seals (16) from piston (9). Discard seals (16).
c. Cleaning and Inspection
For general cleaning instructions, refer to para. 2-8.
1.
For general inspection instructions, refer to para. 2-9.
2.
Inspect springs (15) for bent, broken, or deformed coils. Replace both springs (15) if one or both is
3.
damaged or mismatched.
Inspect air cylinder (4) for bends, cracks, dents, and internal surface scoring. Minor scoring is
4.
acceptable. Replace air cylinder (4) if dented, bent, cracked, or severely scored.
Inspect piston (9) for cracks, burrs, dents, and damaged seal and retainer grooves. Replace
5.
piston (9) if cracked, burred, dented, or grooves are damaged.
Inspect retainers (14) for bends and distortion. Replace retainer (14) if bent or distorted.
6.
Inspect cover (3) for cracks and damaged threads. Replace cover (3) if cracked or threads are
7.
damaged.
