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- a window cut out into the dial located in the upper L.H. portion. When the turn-and-bank indicator is not electrically supplied or in the event of a failure, a warning flag drops into view.
M32 turn-and-bank indicator is electrically supplied by "BUS 2" bar via CB72 switch-breaker. M32 turn-and-bank indicator is mounted in the lower L.H. corner of L.H. instrument panel.
B. CB72 switch-breaker
"TURN-COORD." or" " switch-breaker located on central pedestal, controls the ON / OFF function of
the equipment.
AFAD
Validity : Option OPT10 34002A 34 22-00Page 1
pu) JUN 04
A - M32 turn-and-bank indicator
B - CB72 switch-breaker
Variante de localisation
Alternate location ®
14342200AAAEVZ14000
Turn-and-bank indication - Identification and location of components
Figure 1
AFAD
Validity : Option OPT10 34002A 34-22-00Page 2
pu) JUN 04
4. OPERATION
The equipment is energized by closing the switch-breaker. The warning flag goes out of view when the gyroscope rotor reaches the required operation speed.
The M32 turn-and-bank indicator is ready to measure the angular speed of the aircraft around its vertical axis. The red warning flag will drop into view in the indicator window to alert the pilot when the supply voltage of the equipment is interrupted or when it becomes insufficient.
AFAD
Validity : Option OPT10 34002A 34-22 00Page 3
(BU) JUN 04
PAGE INTENTIONALLY LEFT BLANK
MAGNETIC COMPASS
DESCRIPTION AND OPERATION
1. GENERAL
The magnetic compass is an independent instrument which provides the pilot with information concerning the earth's magnetic field.
The installation is composed of :
- the magnetic compass,
- the compensation assembly (Option).
The lighting of the magnetic compass is ensured by "BUS 1" bar.
2. LOCATION (Figure 1)
COMPONENT ()TY AREA ACCESS DOOR REFERENCE
Magnetic compass 1 250 / /
Compensation assembly (Option) 1 250 / /
Fuse:
- "COMPASS LIGHTING" 1 250 Fuse panel WM
3. DESCRIPTION
The magnetic compass is composed of a case filled with dampening liquid in which a graduated compass card,
visible through a window, moves. The magnetic heading is read on the compass card in front of a lubber line.
A compensation device, located on the front face, allows correcting the magnetic compass deviations caused by the environment magnetic influence (aircraft structure and electrical installations).
NOTE : When this device does not allow correcting the deviations sufficiently, a compensation assembly, composed of a box fitted with a magnet, is secured inside the upper portion of the radio rack.
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本文链接地址：TB20 MAINTENANCE MANUAL 34 导航 TB20飞机维护手册 1(42)
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