4-47. Air Reservoir (cont'd)
Dry cleaning solvent (P-D-680) is toxic and flammable. Avoid prolonged breathing of vapors. Avoid
skin contact. Use only in a well-ventilated area. Keep away from open flame. Flash point of solvent
is 138o F (50o C).
2. Remove grease and oil with dry cleaning solvent (item 3, Appendix E) and a clean soft rag
(item 14, Appendix E).
1. Inspect for loose, missing or damaged parts.
2. Inspect air reservoir for cracks, dents, holes and bulges.
3. Inspect mounting brackets for cracks, warps and broken welds.
4. Inspect for rust and corrosion. Clean, treat, prime and paint as required.
5. Replace defective parts.
Apply teflon tape (item 12, Appendix E) to threads of air line connections before installation.
1. Position air reservoir (2) and secure with four screws (8), washers (7) and nuts (6).
2. If rear reservoir was removed, install rear relay valve (para. 4-44).
3. If front reservoir was removed, install front relay valve on front of air reservoir (para. 4-43). Install ratio
relay valve on rear of front air reservoir (para. 4-45).
4. XM1063 only: If reserve reservoir was removed, install bushing (4) and male branch tee (5).
5. Close all drain cocks and pressurize air brake system.
6. Check for leaks.
f. Drain cock leakage test
1. With brake system charged, coat drain cock with soap and water solution.
2. Leaks in excess of a three inch bubble in three seconds are not allowed.