TASK 47-43-04-400-801
3. NGS Pressure Sensor Installation
(Figure 401)
A. References
Reference Title
20-10-51-400-804 Flareless Tubing Assembly Installation (P/B 401)
47-00-00-800-801 Ground Operation of the Nitrogen Generation System (P/B 201)
B. Consumable Materials
Reference Description Specification
G00034 Cotton Wiper - Process Cleaning Absorbent
Wiper (Cheesecloth, Gauze)
BMS15-5 Class A
G50135 Leak Detector - Liquid, Non-Corrosive Soap
Compound
MIL-PRF-25567
C. Location Zones
Zone Area
131 Center Section Wing Box, Body Station 540.00 to Body Station 663.75 - Left
132 Center Section Wing Box, Body Station 540.00 to Body Station 663.75 - Right
212 Flight Compartment - Right
D. Access Panels
Number Name/Location
192CL ECS Access Door
192CR ECS Access Door
E. Install the Pressure Sensor
SUBTASK 47-43-04-420-001
WARNING
DO NOT TOUCH THE COMPONENTS OF THE NITROGEN GENERATION
SYSTEM WHEN THEY ARE HOT. WHEN THE COMPONENTS ARE HOT,
THEY CAN CAUSE INJURIES TO PERSONNEL.
(1) Do these steps to install the pressure sensor [1]:
(a) Put the clamps [2] and the pressure sensor [1] into their position on the bracket
assembly [3].
(b) Install the clamps and pressure sensor with the two washers [4] and two screws [5].
NOTE: Do not tighten the screws until the pressure sense line is attached to the
pressure sensor [1].
(c) Do this task to attach the pressure sense line to the pressure sensor [1]: Flareless Tubing
Assembly Installation, TASK 20-10-51-400-804.
NOTE: Use a second wrench on the pressure sensor when you connect the pressure
sense line.
(d) Tighten the bolts [7] and screws [5].
(e) Connect the electrical connector [6].
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-43-04
Page 406
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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