Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (95)
Page
17 of 20
CHAPTER 95 – INSTRUMENT SYSTEM (95-00-00)

COPYRIGHT

2007 BY DART AEROSPACE LTD.

THIS DOCUMENT IS PRIVATE AND CONFIDENTIAL AND IS SUPPLIED ON THE EXPRESS CONDITION THAT IT IS NOT TO BE USED FOR ANY PURPOSE OR COPIED OR COMMUNICATED TO ANY
OTHER PERSON WITHOUT WRITTEN PERMISSION FROM DART AEROSPACE LTD.
Revision:
4
Date: 11.06.01
95.6 NAVIGATION INSTRUMENTS
95.6.1 Navigation Instruments
The navigation instruments consist of the pilot
gyro directional indicator and the standby
magnetic compass (M28).
95.6.2 Gyro Directional Indicator
The gyro directional indicator is a 28VDC, self
contained unit which displays directional
information on a compass card through an
azimuth gimbal on the gyro. The heading knob,
located on the face of the unit, allows selection of
the desired heading. Upon depressing this knob,
the gyro inner axis is automatically aligned
perpendicular with the azimuth gimbal.
95.6.3 Standby Magnetic Compass
The standby magnetic compass (M28) is
mounted on the right side of the helicopter over
the windshield. This standard magnetic type
compass is used in conjunction with the compass
correction card located on the windshield center
post.
95.6.4 Replacement – Standby Magnetic
Compass
95.6.4.1 Remove mounting screws from
mounting bracket while holding compass in
place.
25.6.4.2
Carefully remove the compass from
the bracket.
25.6.4.3 Carefully
position the compass in the
mounting bracket and install the mounting
screws.
25.6.4.4
Tap the edge of the compass case
lightly to check that the compass card is free.
25.6.4.5
Perform compensation adjustment.
95.7 PROPULSION AND HYDRAULIC
INSTRUMENTS
95.7.1 Propulsion And Hydraulic
Instruments
Propulsion and hydraulic instruments consist of
torque pressure, engine oil temperature and
pressure, fuel pressure, fuel quantity, gas
producer tachometer, hydraulic temperature and
pressure, transmission oil temperature and
pressure, dual tachometer, and measured gas
temperature or exhaust gas temperature
indicators.
95.7.2 Torque Pressure Indicator
Torque pressure indicators (pilot M20 and copilot
M19) display torque output of the engine. Each
indicator receives its’ own signal from a separate
torque pressure transmitter located on the
engine. For S/Ns 30687, 30931, 30576, 30817
and 30599 the indications are in PSI. For all
S/Ns except 30687, 30931, 30576, 30817 and
30599 the indications are in percent.
95.7.3 Engine Oil Temperature and
Pressure Indicator
Engine oil temperature and pressure indicator
(M5) is a dual type indicator registering
temperature (degrees Celsius) and pressure
(psig) for the engine. The temperature portion
receives temperature indications from an
electrical resistance type bulb and the pressure
portion receives pressure indications from an
engine oil pressure transmitter. For S/Ns 30687,
30931, 30576, 30817 and 30599 the temperature
portion is 28 VDC powered and the pressure
portion is 26 VAC powered. For all S/Ns except
30687, 30931, 30576, 30817 and 30599 both the
temperature portion and the pressure portion are
28 VDC.
95.7.4 Fuel Pressure Indicator
Engine fuel pressure indicator (M3) registers fuel
pressure (psig) from indications received from the
fuel pressure transmitter. For S/Ns 30687,