TM 9-2320-272-24-1
3-187. FRONT RELAY VALVE REPLACEMENT
THIS TASK COVERS:
b. Installation
a. Removal
INlTlAL SETUP:
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).
Two locknuts (Appendix D, Item 291)
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.
Tag lines and fittings for installation.
Scribe fitting directions for installation.
Disconnect vent lines (4), (9), and (11) from elbow (3) and tee (10).
1.
Disconnect delivery lines (8) and (14) from elbows (7) and (13).
2.
Disconnect control line (12) from elbow (6).
3.
Disconnect supply line (16) from adapter (17).
4.
Remove two locknuts (18), screws (15), and front relay valve (2) from bracket (1). Discard locknuts (18).
5.
Remove elbows (3), (6), (7), and (13), tee (10), and adapters (6) and (17) from front relay valve (2).
6.
Use fittings from old valve.
Wrap all male pipe threads with antiseize tape before
installation.
Install elbows (3), (6), (7), and (13), tee (10), and adapters (6) and (17) on front relay valve (2).
1.
Install front relay valve (2) on bracket (1) with two screws (15) and new locknuts (18).
2.
Connect supply line (16) to adapter (17).
3.
Connect control line (12) to elbow (6).
4.
Connect delivery lines (8) and (14) to elbows (7) and (13).
6.
Connect vent lines (4), (9), and (11) to elbow (3) and tee (10).
6.
3-516
