TM 9-2320-272-24-1
3-173. SPRING BRAKE VALVE MAINTENANCE
THIS TASK COVERS:
a. Removal
c. Installation
b. Adjustment
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
All
TM 9-2320-272-10
TM 9-2320-272-24P
TOOLS
General mechanic's tool kit (Appendix E, Item 1)
EQUIPMENT CONDITION
Wheels chocked (TM 9-2320-272-10).
MATERIALS/PARTS
Drain air reservoirs (TM 9-2320-272-10).
Two locknuts (Appendix D, Item 283)
GENERAL SAFETY INSTRUCTIONS
Gasket sealant (Appendix C, Item 30)
Do not disconnect air lines before draining air
reservoirs.
Release parking brake lever (8) (TM 9-2320-272-10).
1.
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 air lines for installation.
Disconnect three air lines (4) from adapter assemblies (3), (6), and (5).
2.
Remove adapter assemblies (3), (6), and (5) from valve body (1).
3.
Remove two locknuts (9), washers (10), screws (2), and valve body (1) from parking brake
4.
bracket (7). Discard locknuts (9).
Loosen setscrew (11) on valve lever (13) and position valve lever (13) parallel with valve body (1).
1.
Tighten setscrew (11).
Position valve body (1) on parking brake bracket (7). Valve lever (13) must be parallel with cab floor.
2.
If not, repeat step 1.
Install valve body (1) on parking brake bracket (7) with two screws (2), washers (10), and new
1.
locknuts (9). Valve lever roller (12) must be aligned with parking brake lever (8).
Lift up parking brake lever (8). Ensure parking brake lever (8) contacts valve lever roller (12)
2.
properly and release parking brake lever (8).
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