34-22-21
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A
737-300/400/500MAINTENANCE MANUAL
2) EFIS SYM GEN R
(b) P18 Circuit Breaker Panel
1) CAPT EADI
2) EFIS SYM GEN L
S 014-004
CAUTION:_______DO NOT PULL THE CRT HANDLE. THE HANDLE TURNS OUT AUTOMATICALLY WHEN THE SPRING IS RELEASED. HOLD THE HANDLE UNTIL IT IS COMPLETELY RELEASED FROM THE SCREWS. YOU CAN CAUSE DAMAGE TO THE HANDLE IF YOU TURN IT OUT BEFORE IT IS RELEASED FROM THE SCREWS.
(3)
Hold the CRT handle against the EADI.
S 034-005
(4)
Loosen the two screws at the top of the EADI display.
S 014-006
(5)
Pull the handle out and down.
S 014-007
(6)
Pull the control column rearwards and hold it there.
S 024-009
CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE
_______ EADI. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE EADI.
(7)
Slowly pull the EADI out from the instrument panel.
(8)
Install a dust cap on the electrical connector of the EADI.
S 034-008
TASK 34-22-21-404-010
3. EADI Installation (Fig. 401)_________________
A. References
(1)
AMM 21-58-02/501, Equipment Cooling System
(2)
AMM 24-22-00/201, Manual Control
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B.
C.
D.
A
737-300/400/500MAINTENANCE MANUAL
(3)
AMM 29-15-00/201, Hydraulic Power
Access
(1)
Location Zones 101/102 Flight Compartment
Procedure
S 864-045
(1)
Make sure hydraulic power is removed from the flight controls (AMM 29-15-00/201).
S 864-011
(2)
Make sure these circuit breakers are open:
(a)
P6 Circuit Breaker Panel
1) F/O EADI
2) EFIS SYM GEN R
(b)
P18 Circuit Breaker Panel
1) CAPT EADI
2) EFIS SYM GEN L
S 214-017
(3) Make sure the cooling air inlet and outlet screens on the rear of the EADI are clean.
S 434-012
CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE
_______ EADI. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE EADI.
(4)
Remove the dust cap from the electrical connector of the EADI.
S 424-013
(5)
Slowly push the EADI into the instrument panel.
NOTE: Make sure that the handle is fully extended out.
____
S 414-014
(6)
Slowly release the control column.
(7)
Put the handle in the up and locked position.
S 434-016
(8)
While the handle is held, tighten the mounting screws.Prepare for the EADI Test
(1)
Supply electrical power (AMM 24-22-00/201).
S 414-015
S 864-018
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A
737-300/400/500MAINTENANCE MANUAL
HINGED HINGED MOUNTING
MOUNTING MOUNTING SCREW
ASSEMBLY ASSEMBLY
EADI
(REAR VIEW)
Electronic Attitude Director Indicator (EADI)
Figure 401
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34-22-21
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