4-54. SUCTION DRAIN VALVES
This task covers:
c. Cleaning and Inspection
Tool Kit, General Mechanics, Automotive
Main Engine Shutdown (see para 2-12 .)
(Appendix B, Section III, Item 1)
APU Shutdown (see para 2-16 .)
Batteries Disconnected (see para 4-114 .)
Dry Cleaning Solvent (Item 3, Appendix E)
Grease (Item 1, Appendix E)
Pipe Sealant (Item 2, Appendix E)
O-Rings (Figure 18, Appendix F)
Turn turnbuckle (1) clockwise to separate
outer rod (2) from inner rod (3).
Remove elbows (5 and 9) and pipe nipple
(4) from valve body (6).
Remove snap ring (7).
Remove inner rod (3) and plunger (8) as
Remove and discard two O-rings (10).
Remove knob (11) from rod (2).
Cleaning and Inspection.
Dry cleaning solvent P-D-680 is potentially
Avoid repeated and prolonged
breathing of vapors and skin contact with the liquid.
Do not use near open flame, arcing equipment or
other ignition sources. Always wear eye protection
and protective clothing. The flash point of P-D-680
is 1 00 to 138 deg. F (38 to 59 deg. C).
Clean all parts in dry cleaning solvent
(Item 3, Appendix E).