Ammeter; Hopper Quantity (Optional Equip.) - Thrush Aircraft S2R-R1340 Maintenance Manual

THRUSH AIRCRAFT, INC – MODEL S2R-R1340
arc (minimum) 16.0 to 22.5 volts, and an
upper red arc (maximum) 30.5 to 36.0
volts respectively. Continuous operation
over 30.5 volts is detrimental to the life
of the battery and could cause loss of
electrical power. A yellow arc from 22.5
to 24.0 volts indicates a caution range.

AMMETER

The ammeter displays current flow, in
amperes, from the aircraft alternator to
the battery, or from the battery to the
electrical system.
operating, the ammeter should indicate
the on charge (+) side unless there is an
aircraft alternator
discharge (-) indication will show if the
alternator is not working or if the
electrical load demand exceeds the
8-10
AIRCRAFT MAINTENANCE MANUAL
With the engine
malfunction. A
Figure 8-4: Right Instrument Panel
aircraft alternator output.
operation on the discharge side will be
detrimental to battery life and may
cause loss of electrical power.

HOPPER QUANTITY (Optional Equip.)

The hopper quantity consists of three
parts -- the level sensing element in
hopper, FA-A control box normally
located on left side of cockpit, and
quantity gauge located in instrument
panel. The gauge is adjustable between
0 gallons to 360
incorporates two lights, one amber light
for low quantity, and one red right for
hopper empty. The system can be
calibrated per the following instructions.
Continuous
gallons and
Effective: 01/01/08