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 TM 9-2815-226-34-1
WARNING
P-D-680 SOLVENT IS POTENTIALLY DANGEROUS. AVOID PROLONGED OR
REPEATED CONTACT WITH SKIN. KEEP AWAY FROM FLAME OR EXCESSIVE
HEAT.
h. Flush passages with cleaning solvent to remove deposits.
i. Clean valves, springs, and spring seats in hot tank solvent.
WARNING
COMPRESSED AIR USED FOR CLEANING PURPOSES WILL NOT EXCEED 30 PSI
(207 KPA). USE ONLY WITH EFFECTIVE CHIP GUARDING AND PERSONAL
PROTECTIVE EQUIPMENT (GOGGLES, SHIELD, GLOVES, ETC.).
j. Direct shop air into all passages and ports to clear loose particles.
CAUTION
DO NOT USE DISC SANDER.
MAY RESULT IN UNEVEN GASKET SEALING
SURFACE.
k. Sand bottom surface of cylinder head with orbital sander to 125 R.M.S. finish. Keep sander from tilting or rocking
to prevent rounding of edges.
3-158
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