Itt Indicators − Maintenance Practices - De Havilland DASH8 100 Series Maintenance Manual

1. Removal/Installation
The maintenance procedures that follow are for the removal and installation of the ITT
indicators.
A. Removal of the ITT Indicators
WARNING:
(1) Remove electrical power from aircraft.
(2) Open, safety clip and tag the circuit breakers that follow:
CIRCUIT BREAKER PANEL
LEFT DC
LEFT DC
RIGHT DC
RIGHT DC
RIGHT DC
(3) Loosen the ITT indicator top right and lower left securing screws approximately five
turns.
(4) Push in the ITT indicator top right and lower left securing screws to disengage the
clamping mechanism.
(5) Slide out the ITT indicator.
(6) Disconnect the connector and remove the ITT indicator.
B. Installation of the ITT Indicators
(1) Make sure the aircraft is in the removal configuration.
(2) Reconnect the connector to the ITT indicator.
(3) Insert and align the ITT indicator and tighten the securing screws.
(4) Remove the safety clips and tags and close the circuit breakers that follow:
CIRCUIT BREAKER PANEL
LEFT DC
LEFT DC
RIGHT DC
RIGHT DC
RIGHT DC
(5) Remove all tools, equipment and unwanted materials from the work area.
MASTER
EFFECTIVITY:
D
S ERIES 100
AIRCRAFT MAINTENANCE MANUAL
ITT INDICATORS − MAINTENANCE PRACTICES
REMOVE ALL ELECTRICAL POWER FROM THE AIRCRAFT
BEFORE YOU DO MAINTENANCE. PUT WARNING PLACARD AT
THE EXTERNAL POWER RECEPTACLE AND IN FLIGHT
COMPARTMENT. THIS IS NECESSARY TO PREVENT
ELECTRICAL SHOCK TO PERSONS AND/OR DAMAGE TO THE
EQUIPMENT.
CIRCUIT BREAKER NO.
CIRCUIT BREAKER NO.
F5
S2
F5
A1
R3
F5
S2
F5
A1
R3
77−20−00
NAME
ENG 1 ITT IND
IND LCD HTR
ENG 2 ITT IND
IND LCD HTR
ENG INSTR
NAME
ENG 1 ITT IND
IND LCD HTR
ENG 2 ITT IND
IND LCD HTR
ENG INSTR
Page 201
Jun 20/2005