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21-31-21
ALL ú ú 01 Page 404 ú Mar 12/01
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A
737-300/400/500MAINTENANCE MANUAL
DELTA P MODULE - REMOVAL/INSTALLATION
_____________________________________
1. General_______
A. This procedure has two tasks. The first task gives instructions for the removal of the delta P module. The second task gives instructions for the installation of the delta P module.
B. The delta P module is on the top shelf of the E1 rack in the E/E equipment compartment (Fig. 401).
TASK 21-31-22-004-003
2. Delta P Module Removal (Fig. 401)______________________
A. References
(1)
20-10-07/201, E/E Rack-Mounted Components
(2)
21-31-21/401, Pressure Controller
B. Access
(1)
Location Zone
205 Electronic Compartment
(2)
Access Panel
1201L Electronic Equipment Access Door
C. Procedure
S 864-008
(1) Open these circuit breakers on the P6 panel and attach DO-NOT-CLOSE tags:
(a)
MAN DC
(b)
STBY DC
(c)
AUTOMATIC DC
(d)
AUTOMATIC AC
(e)
MAN AC
(f)
STBY AC
(g)
All the circuit breakers on the CONTROL CABIN LIGHTING module
(h)
LANDING GEAR LIGHTS
S 864-009
(2) Open the No. 1 AIR DATA COMPUTER circuit breaker on the P18 panel and attach a DO-NOT-CLOSE tag.
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21-31-22
ALL ú ú 02 Page 401 ú Nov 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
A
Delta P Module Installation
Figure 401
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21-31-22
ALL ú ú 01 Page 402 ú Jul 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 024-010
(3)
Remove the pressure controller (Ref 21-31-21/401).
S 014-018
(4)
Remove one of these components from the E1-1 shelf, as necessary, to gain access to the delta P module:
(a)
AUTO-SLAT CMPTR NO. 2
(b)
DGTL STALL WRN CMPTR NO. 2
(c)
STALL MGMT CMPTR NO. 2
(d)
CABIN TEMP CONT module
S 014-001
(5)
Get access to the delta P module on the top shelf of the E1 rack.
S 024-002
(6)
Remove the delta P module (Ref 20-10-07/201).
(a)
Disconnect the electrical connector, D1872, from the delta P module.
(b)
Remove the screwlocks, lockwashers, standoffs, and nuts that attach the delta P module to the E1-1 shelf.
(c)
Remove the delta P module.
TASK 21-31-22-404-004
3. Delta P Module Installation (Fig. 401)___________________________
A. Equipment
(1) Multimeter
B. References
(1)
20-10-07/201, E/E Rack-Mounted Components
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