(2)
The installation of the Passenger Service Units (PSUs)
(3)
The removal of the Spacer Panel
(4)
The installation of the Spacer Panel
(5)
The adjustment of the Passenger Service Units (PSUs)
TASK 25-23-61-002-035
2. Passenger Service Units (PSUs) Removal (Fig. 201)
______________________________________
A. Special Tools and Equipment
(1) Firing Pin Retraction Equipment - A35001-1
B. References
(1)
24-22-00/201, Manual Control
(2)
35-22-11/201, Oxygen Generator
C. Access
(1) Location Zone
100 Upper Half Fuselage
D. Prepare for the Removal
S 862-001
(1) Remove the electrical power (Ref 24-22-00/201).
E. Procedure
S 012-002
(1) Lower the PSUs
(a)
Release the latches
1) Put a small Allen wrench or other applicable tool in the access holes.
(b)
Not fully lower the PSUs and disconnect the lanyard.
(c)
Move the PSUs down to the fully open position.
S 422-077
(2)
Isolate the oxygen generator and install the safety pin (Detail B) (Ref 35-22-11/201).
(3)
Disconnect the gasper air duct and the electrical connector.
S 022-005
(4)
Hold the PSUs and disconnect the lanyard from the support structure (detail A).
S 022-007
(5)
Push the plungers on the clamps (section A-A) to release the hinge points from the air outlet extrusion.
S 032-004
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A
737-300/400/500MAINTENANCE MANUAL
OVERHEAD STOWAGE BIN
LATCH RELEASE
ACCESS HOLES
AIR OUTLET PSU SUPPORTEXTRUSION STRUCTURE
A A
SPACER PANEL
SEE C
PSU
SEE A
WIRE BUNDLE
WIRE BUNDLE/GASPER CONNECTOR
HOSE BRACKET OXYGEN GENERATOR
SEE B
GASPER AIR HOSE
OXYGEN
HOSE
LANYARD
PSU (LOWERED)
PSU (EXAMPLE)
A
PSU Installation Figure 201 (Sheet 1)
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A 737-300/400/500MAINTENANCE MANUAL
SERVICE UNIT LOCATION
SAFETY PIN MUST BE REMOVED WHEN PSU IS INSTALLED, SO THAT GENERATOR WILL OPERATE IN AN EMERGENCY
21.5 INCHES (MAX), 10.5 INCHES (MIN)
PSU Installation Figure 201 (Sheet 2)
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A 737-300/400/500MAINTENANCE MANUAL
INDEX SPRING INDEX SPRING
(REF) (REF)
3 PIECE 2 PIECE
SPACER PANEL
(ADJUSTABLE, EXAMPLE)
PSU Installation
Figure 201 (Sheet 3)
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