TM 9-2320-272-24-3
4-226. DEEPWATER FORDING PRESSURIZATION VALVE REPLACEMENT
THIS TASK COVERS
c. Installation (M939A2)
a. Removal (M9389/A1)
b. Installation (M939/A1)
b. Removal (M939A2)
INITIAL SETUP:
REFERENCES (TM)
APPLICABLE MODELS
TM 9-2320-272-10
All
TM 9-2320-272-24P
TOOLS
EQUIPMENT CONDITION
General mechanic's tool kit (Appendix E, Item 1)
Parking brake set (TM 9-2320-272-10).
MATERIALS/PARTS
Hood raised and secured (TM 9-2320-272-10).
Two locknuts (M939/Al) (Appendix D. Item 283)
Air reservoirs drained (TM 9-2320-272-10).
Air pressure hose removed from valve (M939A2)
Locknut (M939/Al) Appendix D, Item 318)
Lockwasher (M939/Al) (Appendix D, Item 354)
Antiseize tape (Appendix C, Item 72)
GENERAL SAFETY INSTRUCTIONS
Do not disconnect air lines before draining air
reservoir.
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 hoses and lines for installation.
1.
Remove two locknuts (25), screws (18), and clamp (19) from fording cable bracket (24). Discard
locknuts (25).
Loosen screw (29) and remove control cable (26) from nut (28).
2.
3.
Disconnect supply hose (20) from pressurized valve adaptor (21).
NOTE
Perform step 4 for vehicles equipped with positive crankcase
ventilation system.
4.
Remove two clamps (16), hose (17), and crankcase breather tube (15) from pressurization valve
5.
elbow (27).
Disconnect pressurization hose (6) and vent hose (5) from pressurization valve connectors (7).
6.
Remove locknut (a), screw (12), clamp (ll), and power steering pump hose (13) from bracket (9) on
7.
radiator support bracket (10). Discard locknut (8).
Disconnect power steering pump hose (13) from pressurization valve connector (14).
8.
9.
Remove screw (30), lockwasher (31), and pressurization valve (22) with bracket (23) from rocker
10.
lever cover (4). Discard lockwasher (3 1).
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