S 034-005
(2)
Pull the CDU out of the Pilots' Forward Electronics Panel, P9. Disconnect the electrical connector on the rear panel of the CDU.
S 024-006
(3)
Remove the CDU.
TASK 34-62-11-404-007
3. Install the FMCS Control Display Unit
_____________________________________
A. References
(1)
AMM 20-40-12/201, Electrostatic Discharge Sensitive Devices
(2)
AMM 21-58-0X/501, Equipment Cooling System
(3)
AMM 24-22-00/201, Manual Control
(4)
AMM 32-00-01/201, Ground Lock Assemblies
B. Access
(1) Location Zone
101 Control Cabin - Left
102 Control Cabin - Right
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A
737-300/400/500MAINTENANCE MANUAL
C. Procedure
S 434-009
CAUTION: USE SPECIAL PROCEDURE AMM 20-40-12/201 WHEN YOU REMOVE/INSTALL
_______ THE CDU. STATIC ELECTRICAL DISCHARGE CAN CAUSE DAMAGE TO THE ELECTRONIC CIRCUITS IN THE CDU.
(1)
Connect the electrical cable to the connector (J1) on the rear panel of the CDU.
S 424-010
(2)
Put the CDU in its position on the Pilots' Forward Electronics Panel, P9.
S 434-011
(3)
Tighten the six quick-release fasteners that hold the CDU.
S 864-036
CAUTION: MAKE SURE THAT THE GROUND LOCKS ARE INSTALLED IN ALL OF THE
_______ LANDING GEAR BEFORE YOU MOVE THE CONTROL LEVER FOR THE LANDING GEAR. WITHOUT THE GROUND LOCKS, THE LANDING GEAR CAN RETRACT AND CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(4)
If you will install the CDU No. 2, make sure the ground locks are installed in the nose and main landing gear (AMM 32-00-01/201).
S 864-037
(5)
After you install the CDU No. 2, put the control lever for the landing gear in the DOWN position.
D. Prepare for a Test of the Control Display Unit
S 864-013
(1)
Supply the electrical power (AMM 24-22-00/201).
S 864-014
(2)
Make sure that the BAT switch on the Pilots' Forward Overhead Panel, P5, is in the ON position.
S 864-015
(3)
Make sure that the STANDBY POWER switch on the Pilots' Forward Overhead Panel, P5, is in the AUTO position.
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A 737-300/400/500MAINTENANCE MANUAL
S 884-016
CAUTION: MAKE SURE THAT YOU OPERATE THE EQUIPMENT COOLING SYSTEM BEFORE
_______ YOU ENERGIZE AN ELECTRONIC SYSTEM. TOO MUCH HEAT CAN CAUSE DAMAGE TO ELECTRONIC EQUIPMENT.
(4)
Supply the cool air from the equipment cooling system
(AMM 21-58-0X/501).
S 864-017
(5)
Make sure that you close the LANDING GEAR AIR/GND RELAY & LIGHTS circuit breaker on the P6 circuit breaker panel.
S 864-022
(6)
Close these circuit breakers and remove the DO-NOT-CLOSE tags:
(a) P18 Panel
1) CDU No. 1
2) CDU No. 2 (if installed)
NOTE: On airplanes with provisions for dual FMC, FMCS CDU
____ (ANCDU, MCDU) No. 2 circuit breaker will be on the P6-1 panel.
3) FMC (or FMCS CMPTR)
(b) AIRPLANES WITH DUAL FMC;
P6-1 panel
1) FMCS CDU No. 2
2) FMCS CMPTR No. 2
E. Do a Test of the Control Display Unit
S 744-018
(1)
Make sure that the CDU display shows the IDENT page.
