THRUSH AIRCRAFT INC – MODEL S2RHG-T34 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
8-2
Effective: 05/05/04
INSTRUMENTS
GENERAL DESCRIPTION
The standard instruments are located on three panels in the cockpit. An upper panel, a
left lower panel, and a right lower panel. The left lower panel contains a clock, oil
temperature gauge, oil pressure gauge, fuel pressure gauge, air filter Delta “P” gauge,
hour meter, airframe related electrical switches and fuel quantity gauge. The right lower
panel contains the voltmeter, ammeter, and circuit breakers. The upper instrument
panel contains the gas generator percent tachometer (Ng), propeller tachometer (Np),
torque pressure gauge, ITT (T5) indicator, boom pressure gauge, air speed indicator,
altimeter, fluid compass, engine warning lights, stall warning light and bank indicator.
All instruments are lighted with a post light or internally lighted and controlled with
rheostats located on the left lower panel.
Optional instruments and gauges are available upon request. A few of the optional
instruments are hopper quantity, Shadin Miniflo™ fuel flow, Micronair™ chemical flow
meter, Crophawk™ chemical flow meter, encoding altimeter, artificial horizon, electric
turn and bank, vertical speed, and directional gyro.
INSTRUMENT SYSTEM MAINTENANCE
Unless otherwise specified, field maintenance of instrument systems is limited to
removal and replacement of defective instruments and transmitters; authorized in-
service adjustment of transmitters and instruments; and repair of instrument systems
between the instrument and signal source (transducer). Reliability of the various
instruments and related systems can be sustained by routine inspection of electrical
wiring for chafing, and electrical connections for security. All fluid pressure, pitot
pressure, and static line connections must be tight at all times and lines must be
correctly routed and secured. Electrical wiring must be free from chafing, properly
connected and secured. Instrument ports and lines disconnected during system
maintenance must be capped or plugged immediately to prevent the entrance of foreign
material and consequent instrument malfunction. Maintenance procedures pertaining to
a specific instrument or system are contained in subsequent paragraphs. As a general
rule, it is recommended that the instrument signal source and means of transmission to
the instrument be rung out before changing an instrument. If a new instrument or a
transducer is available, it may be expedient to utilize them in the system as required to
determine if the malfunction is in the instrument, signal source or interconnecting line.
FLIGHT INSTRUMENTS
Flight instruments consist of the magnetic compass, airspeed indicator, and altimeter
and bank indicator. The pitot-static system provides pitot (impact) and static
(atmospheric) air pressure to the airspeed indicator and static air pressure to the
altimeter indicator.
PITOT-STATIC SYSTEM
The pitot head installed near the wing tip of the right wing lower surface provides pitot
pressure. The pitot pressure line is connected to the airspeed indicator. A static
pressure line is connected to the altimeter and to the airspeed indicator. The static
Содержание S2RHG-T65 TURBO THRUSH
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