TM 9-2330-390-14&P
4-65. AIRBRAKE VALVE REPLACEMENT.
This Task Covers:
a.
b.
Removal
c.
Installation
Cleaning
Initial Setup:
Equipment Conditions:
l Wheels chocked.
l Air reservoir drained (see paragraph 3-6).
Tools/Test Equipment:
l General mechanic’s tool kit (Item 30, Appendix G)
General Safety Instructions:
Materials/Parts:
l Sealing compound (Item 10, Appendix F)
l Rags (Item 25, Appendix F)
l Dry cleaning solvent (Item 27, Appendix F)
l Marker tags (Item 28, Appendix F)
l Antiseize tape (Item 29, Appendix F)
l Dry cleaning solvent is flammable and must not be used near an open flame. Use only in a well-ventilated area.
NOTE
l Front and rear dolly airbrake valves are replaced the same way except as noted.
l All air lines should be tagged before removal. Refer to paragraph 4-18 for tagging
instructions.
1.
If working on front dolly, disconnect three tube assemblies (1) from airbrake valve (2).
2.
If working on rear dolly, disconnect three tube assemblies (1) from elbows (7) at airbrake valve (2).
3.
Hold stem (5) and remove control knob (3).
4.
Remove nut (4) and airbrake valve (2) from pivoting tray (6).
5.
If working on rear dolly, remove three elbows (7) from airbrake valve (2).
4-148
