Calibration Of Hopper Quantity Gauge - THRUSH S2R – G10 Maintenance Manual

AIRCRAFT MAINTENANCE MANUAL
*NOTE*
A scale is provided to show the
relationship of the remote gauge,
% scale on analog control unit
type FA-A, and number of inches
the bottom of the floating ball is
away from the top of the lower
stop collar. The column labeled
ground shows how many gallons
are in the hopper with the aircraft
in the ground
relationship to the remote gauge
reading.

Calibration of Hopper Quantity Gauge

A. The remote hopper level gauge
markings are an indication of hopper
load in level flight.
Effective: 03/26/2010
THRUSH AIRCRAFT, INC – MODEL S2R-G10
Figure 8-5: Right Instrument Panel
attitude in
B. A screw type adjuster located on the
face of the gauge at the six o'clock
position adjusts the remote gauge 0
mark. Adjustment of the screw CW or
CCW will move pointer left or right.
C. With floating ball against lower stop
collar, adjust screw adjuster until pointer
is aligned with 0 marks on gauge.
D. The 360-gallon mark is adjusted by
turning a screw head located on a 20K
ohm potentiometer on a circuit board
attached to rear of gauge.
E. With floating ball against the top stop of
the sending
potentiometer until pointer is aligned
with 360 marks on gauge.
F. Once steps C and E are completed, the
unit is in calibration.
unit; adjust the
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