TM-9-2320-361-20
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
OCTOBER 1991
TM-9-2320-361-20 - Page 657 of 1207
TM 9-2320-361-20
8-35. SHUTTLE (DOUBLE CHECK) VALVE REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
M275A2
MATERIALS/PARTS
Locknut
Antiseize tape (Appendix C, Item 27)
REFERENCES (TM)
TM 9-2320-361-10
TM 9-2320-361-20P
EQUIPMENT CONDITION
Parking brake set (TM 9-2320-361-10).
Air reservoirs drained (TM 9-2320-361-10).
GENERAL SAFETY INSTRUCTIONS
Do not disconnect air lines before draining air
reservoirs.
a. Removal
WARNING
Do not disconnect air lines before draining air reservoirs. Small
parts under pressure may shoot out with high velocity, causing
injury to personnel.
NOTE
Tag all air lines and hoses for installation.
1. Remove two connectors (8) from switch (9).
2. Remove air line (2) from elbow (1).
3. Remove air line (5) from adapter (6).
4. Remove air line (13) from adapter (12).
5. Remove locknut (3), screw (11), and shuttle valve (7) from crossmember (4). Discard locknut (3).
NOTE
Mark fittings for installation.
6. Remove elbow (1) and two adapters (6) and (12) from shuttle valve (7).
7. Remove switch (9) and adapter (10) from shuttle valve (7).
NOTE
Use old fittings and switch when installing new shuttle valve.
Wrap all male pipe threads with anti seize tape before installation.
1. Install adapter (10) and switch (9) on shuttle valve (7).
2. Install two adapters (12) and (6) and elbow (1) on shuttle valve (7).
3. Install shuttle valve (7) on crossmember (4) with screw (11) and new locknut (3).
4. Install air line (13) on adapter (12).
5. Install air line (5) on adapter (6).
8-84
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