(10)
Put a cap on the bulkhead union to keep contamination out. S 022-011
(11)
Disconnect the air hose from the bulkhead elbow. S 032-012
(12)
Put a cap on the air hose to keep contamination out. S 022-013
(13)
Remove the bulkhead elbow. NOTE: Keep the bulkhead elbow for the installation.
____
S 032-014
(14)
Put caps on the bulkhead elbow to keep contamination out. S 022-015
(15)
Disconnect the solid air line from the bulkhead tee. S 012-016
(16)
Remove the mounting screws for the pressure regulator. S 022-017
(17)
Remove the pressure regulator from the bulkhead tee. S 032-018
(18)
Put caps on the bulkhead tee to keep contamination out. S 032-019
(19)
Put a cap on the solid air line to keep contamination out.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
TASK 38-41-22-402-006
3. Pressure Regulator Installation
A. Reference
(1) AMM 38-41-00/201, Water Tank Pressurization System
B. Access
(1) Location Zone
220 Aft Cargo Compartment Equipment Bay
C. Procedure
S 432-007
(1)
Remove the protective cap from the union.
S 422-020
(2)
Install the pressure regulator on the bulkhead union; use a new O-ring.
S 862-009
(3)
Hold the pressure regulator in its position and install the mounting screws.
S 792-010
(4)
Remove the cap from the air hose.
S 412-011
(5)
Connect the air hose to the pressure regulator; use a new O-ring.
(6)
Remove the caps from the bulkhead tee.
S 422-022
(7)
Install the pressure regulator onto the bulkhead tee; use a new O-ring.
(8)
Remove the cap from the solid air line.
S 412-021
S 412-023
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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ALL ú ú 01 Page 204 ú Jul 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 412-024
(9)
Hold the pressure regulator in its position and install the mounting screws.
S 432-025
(10)
Connect the solid air line to the bulkhead tee; use a new O-ring.
S 412-026
(11)
Remove the caps from the bulkhead elbow.
S 422-027
(12)
Install the bulkhead elbow on the pressure regulator; use a new O-ring.
S 412-028
(13)
Remove the cap from the air hose.
S 432-029
(14)
Connect the air hose to the bulkhead elbow; use a new O-ring.
S 412-030
(15)
Close the water tank fill valve.
S 432-031
(16)
Remove the DO-NOT-CLOSE tag and close the circuit breaker.
S 452-032
(17)
Supply electrical power.
S 462-033
(18)
Make sure the air compressor operates and pressurizes the potable-water system.
S 462-034
(19)
Make sure the pressure regulator and its connections do not have a leak.
S 412-043
WARNING: OBEY THE INSTRUCTIONS IN THE CARGO LINING INSTALLATION
_______ PROCEDURE. INCORRECT INSTALLATION OF THE CARGO LINING CAN LET THE FIRE EXTINGUISHING AGENT OR SMOKE OUT OF THE CARGO COMPARTMENT DURING A FIRE.
(20) Install the aft right bulkhead lining in the bulk cargo compartment.
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