TURRET CHECKOUT (CONT)
Check operation of hydraulic power supply (TM-
10) for following:
ELEV/TRAV POWER light comes on.
Power pack motor shuts off between 1200 to
1250 psi and comes on at 900 to 950 psi.
Accumulator nitrogen precharge pressure is
between 500 to 550 psi (TM 20-2-3, para
Reservoir oil level shows FULL at zero
All personnel should be in a position that will allow
unexpected turret and gun motion without causing
injury. Movement of the gunner's control handles will
cause gun movement in elevation, even though the palm
switch on the gunner's control handles is not pressed.
Check turret traverse and gun elevation operation
in power mode (TM-10) for following
Turret cannot be traversed without pressing
palm switches (safety check).
Turret traverses at a low speed that is smooth
with a travel rate of at least 30 mils in one
Gun elevates/depresses at a low speed that is
smooth with a travel rate of at least 30 mils
in one minute.
Gun automatically elevates to zero (+17)
mils to clear rear deck between 1820 and
1920 mils and again depresses between 4500
and 4600 mils when traversing from 0 mils.
GO TO FRAME 6
Para 3-2 Cont