TM 9-2320-279-20-3
M978 Tanker Maintenance Instructions (Cont)
25-27. V13 VENT VALVE AND PUSH ROD REMOVAL/INSTALLATION/ADJUSTMENT (CONT).
c. Push Rod Adjustment.
(1) Move push rod (1) up and down.
Measure movement on pin (2).
Movement must be 1/16 to 1/8 in. (2 to
3 mm).
(2) Loosen jamnut (3).
NOTE
Plug-in valve may come out with push rod.
(3) Pull up and remove push rod (1) from
valve (4).
NOTE
One turn of push rod is 1/16 in. (2 mm).
(4) Turn push rod (1) clockwise to decrease
measurement, or counterclockwise to
increase measurement.
NOTE
Make sure push rod seats firmly on plug-in
valve.
(5) Install push rod (1) in valve (4). Repeat
step (1).
(6) Tighten jamnut (3) when adjustment is
finished.
d. Follow-on Maintenance.
(1) Perform bottom loading
(TM 9-2320-279-10).
(2) Check V13 vent valve for proper
operation (air should escape while
bottom loading).
(3) Install tank filler lid (para 16-49).
END OF TASK
25-128
