M978 Tanker Maintenance Instructions (Cont)
25-39. DROP TUBE REMOVAL/INSTALLATION.
This task covers:
d. Follow-on Maintenance
Grease, Item 23.2, Appendix C
Locking compound, Item 16.1, Appendix C
MOS 63S, Heavy wheel vehicle mechanic
TM or Para
Tank filler lid removed.
Special Environmental Conditions
General Safety Instructions
No smoking, flame, sparks, and hot or
glowing objects within 50 ft (15 m) of ve-
Before entering tank, be certain to
read and follow all safety
precautions in FM 10-71. Liquids
and vapors carried in the M978
tanker are flammable and may
cause injury or death.
No smoking, flame, sparks, or hot or
glowing objects within 50 ft (15 m) of
Some tanks have pipes permanently
welded. On some tanks the pipe is
(1) Loosen setscrew (1).
(2) Loosen end fitting (2) until it does not
contact return port (3).
(3) Remove and discard seal (4).
(4) Position tube (5) to unhook bracket (6)
from tank brace (7).
(5) Remove drop tube (5).