ARMY TM 9-2805-262-14
AIR FORCE TO 38G2-90-1
NAVY NAVFAC P-8-613-14E
5-21. Drain Tube.
This task covers:
General Mechanics Tool Kit (Item 1, Appendix B)
Cylinder head covers removed (para. 4-34).
Rags, Wiping (Item 7, Appendix D)
Solvent, Drycleaning (Item 8, Appendix D)
The replacement procedures are the same for all drain tubes.
lReplacement. (figure 5-18)
Loosen compression fitting (1).
Loosen coupling nut (2) and remove drain tube (3).
Drycleaning solvent PD-680 used to clean parts is potentially dangerous to personnel and
property. Avoid repeated and prolonged skin contact. Do not use near open flame or
excessive heat. Flash point of solvent is 100°F-138°F (38°C-60°C).
Clean drain tube (3) in drycleaning solvent and dry thoroughly.
Inspect threads on compression filling(1) and coupling nut (2) and replace if threads are stripped or
Remove all obstructions in drain tube (3), and replace drain tube if dented or otherwise damaged.
Install drain tube (3) and tighten coupling nut (2) and compression fitting (1).