TM 9-4310-394-13
5-12. VALVE HEAD AND VALVE PLATES REPLACEMENT.
This task covers:
a. Removal
b. Cleaning
c. Inspection
d.
Installation
INITIAL SETUP
Tools Required
Tool Kit, General Mechanic's (Appendix B, item 1)
Material's/Parts Required
Cloth, Lint-Free (Appendix E, Item 1)
Brush, Medium Bristle (Appendix E, Item 2)
Solvent, Dry Cleaning (Appendix E, Item 3)
Outlet gasket, 046-0218 (Appendix H, Item 17)
Valve gasket, 046-0215 (Appendix H, Item 18)
Head gasket, 046-0214 (Appendix H, Item 19)
Equipment Condition
Air compressor unit shut down and cool.
Discharge tube disconnected (see para. 4-21).
Intercooler tube disconnected (see para. 4-31).
a.
Removal. (Refer to Figure 5-12).
(1)
Remove two screws (1), outlet adapter (2), and outlet gasket (3). Discard outlet gasket.
(2)
Remove two screws (4), lock washer (5), flat washer (6), screw (7), and bracket (8).
(3)
Remove five bolts (9) and head (10).
(4)
Remove valve gasket (11), valve plate assembly (12), and head gasket (13). Discard valve gasket and
head gasket.
b.
Cleaning.
(1)
Remove all build up of dirt, oil, and debris from all surfaces.
WARNING
Serious injury can result in breathing fumes of dry cleaning solvent. Serious injury or death
can result from explosion of fumes from solvent. When using this solvent:
Clean parts in a well ventilated area.
Avoid inhalation of solvent fumes and prolonged exposure of skin to cleaning solvent. Wash
exposed skin thoroughly.
Do not use near open flame or excessive heat. Flash point of solvent is 100° F to 138° F (38° C to 590
C).
Wear eye protection when blowing solvent from parts. Air pressure should not exceed 30 psig (2.1
kg/cm2).
(2)
Clean all metallic parts with a clean soft cloth or a medium bristle brush, and cleaning solvent.
5-22
