TM 9-2320-272-24-1
THIS TASK COVERS:
a. Removal
b. Installation
APPLICABLE MODELS
REFERENCES (TM)
All
TM 9-2320-272-10
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
Air reservoirs drained (TM 9-2320-272-10).
Locknut (Appendix D, Item 299)
GENERAL SAFETY INSTRUCTIONS
Antiseize tape (Appendix C, Item 72)
Do not disconnect air lines before draining air
reservoirs.
Do not disconnect air lines before draining air reservoirs. Small
parts under pressure may shoot out with high velocity, causing
injury to personnel.
NOTE
Doublecheck valve No. 1 is located inside the front left frame
rail and left of the front axle differential.
Tag air lines for installation.
1.
Disconnect line (1) from doublecheck valve No. 1 adapter (2).
2.
Disconnect line (12) from valve adapter (11).
3.
Disconnect line (9) from tee (10).
4.
Remove tee (10) from doublecheck valve No. (3).
5.
Disconnect line (5) from valve adapter (7).
6.
Remove locknut (8), screw (4), and doublecheck valve No. 1 (3) from frame rail (6). Discard locknut (8).
NOTE
If new doublecheck valve is being installed, use fittings from old
doublecheck valve.
Wrap all male pipe threads with antiseize tape before
installation.
1.
Position doublecheck valve No. 1 (3) against frame rail (6) and install with screw (4) and new locknut (8).
2.
Connect line (5) to valve adapter (7).
3.
Install tee (10) on doublecheck valve No. 1 (3).
4.
Connect line (9) to tee (10).
5.
Connect line (12) to valve adapter (11).
6.
Connect line (1) to doublecheck valve No. 1 adapter (2).
3-602
