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  TM 9-2350-222-20-2-1
3-2.
TURRET CHECKOUT (CONT)
Troubleshooting
Step
Procedure
Reference
Do 165-mm gun electrical check using firing circuit
1.
tester (TM- 10) and note following:
a.
MAIN GUN indicator light comes on.
b.
Tester buzzes when triggers on gunner's
handles, manual elevating handle, or
commander's handle are pressed.
c.
Tester does not buzz while holding
commander's palm switch and pressing triggers
cm gunner's handles or manual elevating
handle (commander's override operation).
d.
Tester buzzes for short duration using
emergency firing device (blasting machine).
Tester does not buzz when loader's safety
e.
Remove and replace safety switch
switch is set to SAFE and any trigger is
TM 20-2-3 (para 31-1)
pressed or blasting machine handle is turned.
Check operation of turret ventilating blower and
2.
gas particulate heater for following:
a.
Turret ventilating blower operates and
Para 6-3
pressurizes air inside turret (TM-10).
b. Air is heated and indicator light comes on
P ara 6-1, 6-2
when rheostat is moved from OFF. (Check
operation at all station.) (TM-10)
GO TO FRAME 4
Para 3-2 Cont
3-4
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