TM 9-2350-222-10-3
MAINTAIN TURRET (BALANCE AND ADJUST EQUILIBRATOR
ACCUMULATOR PRESSURE)
1. Check pressure on equilibrator system pressure gage (A).
NOTE
If pressure gage (A) reads 1500-1600
psi, equilibrator system is correct. Skip
steps 2 through 6 and go to step 7.
If pressure gage (A) reads below 1500
psi, equilibrator system pressure is
low. Continue with step 2 and skip
step 6.
If pressure gage (A) reads above 1800
psi, equilibrator system pressure is
high. Skip steps 2 through 5 and con-
tinue with step 6.
2. Perform zero pressure check of
equilibrator system as follows:
NOTE
If pressure gage (A) reads less than
1375 psi before quickly dropping to
Notify organizational maintenance.
a. Turn handle (B) one turn counterclockwise to open drain valve.
b. Observe pressure gage (A). Needle will drop slowly to
less than 1375 psi nitrogen prechange, then it will
quickly drop to zero.
c. Turn handle (B) one turn clockwise to close valve.
3.
Turn handle (C) one turn counterclockwise to open
charging valve.
4. With main gun fully elevated, watch pressure gage (A)
and pump hand pump handle (D) up and down. Stop when
TA133090
gage reads between 1700 and 1800 psi.