(2)
Access Panel
1201L Electronic Equipment Access Door
C. Procedure
S 864-016
(1) Open these circuit breakers on the P6-4 circuit breaker panel and attach DO-NOT-CLOSE tags:
(a)
6F1 PRESSURIZATION CONTROL - AUTOMATIC AC
(b)
6F2 PRESSURIZATION CONTROL - AUTOMATIC DC
(c)
6F3 PRESSURIZATION CONTROL - STBY AC
(d)
6F4 PRESSURIZATION CONTROL - STBY DC
(e)
6F5 PRESSURIZATION CONTROL - MAN AC
(f)
6F6 PRESSURIZATION CONTROL - MAN DC
S 864-017
(2) Open these circuit breakers on the P6-3 panel and attach DO-NOT-CLOSE identifiers:
(a) All the circuit breakers on the CONTROL CABIN LIGHTING module
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A 737-300/400/500MAINTENANCE MANUAL
A
Pressure Contoller Location
Figure 401
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A 737-300/400/500MAINTENANCE MANUAL
(b) 6C18 LANDING GEAR - AIR/GND RELAY & LTS
S 864-018
(3) Open these circuit breakers on the P18-2 panel and attach DO-NOT-CLOSE identifiers:
(a)
18A8 No. 1 AIR DATA COMPUTER AC
(b)
18A9 NO. 1 AIR DATA COMPUTER (25 VAC)
S 014-001
(4) Get access to the pressure controller on the top shelf of the E1 rack.
S 024-011
CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONNECTORS ON THE
_______ PRESSURE CONTROLLER. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE PRESSURE CONTROLLER.
(5) Remove the pressure controller (AMM 20-10-07/201).
TASK 21-31-21-404-004
3. Pressure Controller Installation (Fig. 401)
________________________________
A. References
(1)
20-10-07/201, E/E Rack-Mounted Components
(2)
21-31-00/201, Pressurization Control System
B. Access
(1)
Location Zone
205 Electronic Compartment
(2)
Access Panel
1201L Electronic Equipment Access Door
C. Procedure
S 014-005
(1)
Get access to the top shelf of the E1 rack.
(2)
Install the pressure controller (AMM 20-10-07/201).
S 424-006
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(3) S 864-019Remove the DO-NOT-CLOSE identifiers and close these circuit breakers on the P6-4 panel: (a) 6F1 PRESSURIZATION CONTROL - AUTOMATIC AC (b) 6F2 PRESSURIZATION CONTROL - AUTOMATIC DC (c) 6F3 PRESSURIZATION CONTROL - STBY AC (d) 6F4 PRESSURIZATION CONTROL - STBY DC (e) 6F5 PRESSURIZATION CONTROL - MAN AC (f) 6F6 PRESSURIZATION CONTROL - MAN DC
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