TM 5-4310-451-14
5-24. EXHAUST VALVES MAINTENANCE (Con’t).
WARNING
Dry cleaning solvent, P-D-680, Is toxic and flammable. Always wear protective goggles and
gloves, and use only in a well-ventilated area. Avoid contact with skin, eyes, and clothes, and
DO NOT breathe vapors. DO NOT use near open flame or excessive heat. The solvent’s flash
point Is 100°F-138°F (38°C-590C). If you become dizzy while using cleaning solvent,
Immediately get fresh air and medical help. If solvent contacts eyes, Immediately wash your
eyes and get medical aid.
Compressed air used for cleaning or drying purposes, or for clearing restrictions, should
never exceed 30 psi (207 kPa). Wear protective clothing (goggles/shield, gloves, etc.) and use
caution to avoid Injury to personnel.
3.
Clean exhaust valve (8) with dry cleaning solvent and dry with compressed air.
d. INSTALLATION
NOTE
All exhaust valves are Installed same way. This procedure covers one exhaust valve.
1.
If removed, install insert (7) into cylinder head
(1).
2.
With cylinder head (1) on its side, apply a small
amount of lubricating oil to exhaust valve (8) and
install exhaust valve in cylinder head.
3.
Install new seal (6), washer (5), spring (4), and
seat (3) in cylinder head (1).
4.
Compress spring (4) and install lock (2).
5.
Release pressure on spring (4).
FOLLOWING-ON TASKS:
Install cam follower assemblies and pushrods (see paragraph 5-25).
Install exhaust valve bridges (see paragraph 5-26).
TA704927
5-45
