TM 9-2320-279-20-3
M978 Tanker Maintenance Instructions (Cont)
25-28. VI4 PILOT VALVE ASSEMBLY REMOVAL/INSTALLATION.
This task covers:
a. Removal
b. Installation
c. Follow-on Maintenance
INITIAL SETUP
Models
M978
Test Equipment
None
Special Tools
None
Supplies
Compound, sealing, pipe thread, Item 18,
Appendix C
Personnel Required
MOS 63S, Heavy wheel vehicle mechanic
References
FM 10-71
Equipment Condition
TM or Para
Condition Description
Para 25-3
Tank drained.
Para 16-49
Tank filler lid removed.
Special Environmental Conditions
None
General Safety Instructions
No smoking, flame, sparks, and hot or glowing
objects within 50 ft (15 m) of vehicle. Read and
follow all safety precautions in
TM 9-2320-279-10 and FM 10-71.
a.
Removal.
WARNING
Before entering tank, be sure 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.
(1)
Loosen nut (1) and
disconnect tube (2).
(2)
Remove V14 pilot valve (3)
from Vl0 bottom load
valve (4).
Change 3
25-129
