M978 Tanker Maintenance Instructions (Cont)
25-12. V1 EMERGENCY VALVE REMOVAL/INSTALLATION.
Adhesive-sealant, silicone, Item 4, Appendix C
This task covers:
c. Follow-on Maintenance
MOS 63S, Heavy wheel vehicle mechanic
TM or Para
Special Environmental Conditions
General Safety Instructions
No smoking, flame, sparks, and hot or
glowing objects within 50 ft (15 m) of
New style V1 emergency valve is .380 in (9.6 mm) shorter than the old style V1 emergency
valve. When replacing old style valve with new style valve, pipe assembly must also be
replaced. New style valve can be identified by the words BETTS INDUSTRIES cast into
the valve housing, on the drivers side.
Remove nut (1) and screw (2) from bracket (3).