(b)
Remove the gasket.
(c)
Discard the gasket.
S 024-006
(5) Remove the pneumatic line filter from the bleed air duct:
(a)
Remove the pneumatic line filter.
(b)
Remove the gasket.
(c)
Discard the gasket.
(d)
Install a cap on the bleed air duct to prevent contamination.
TASK 49-51-22-404-007
3. Cooling Air Shutoff Valve Pneumatic Line Filter Installation (Fig. 401)
____________________________________________________________
A. Access
(1)
Location Zones
101 Control Cabin (Left)
205 Electronic Compartment
703 APU Compartment
(2)
Access Panels
1201 Electronic Equipment Access Door
3804 APU Cowl Door
B. Procedure
S 424-009
(1) Install the pneumatic line filter to the bleed air duct:
(a)
Remove the cap from the bleed air duct.
(b)
Install a new gasket to the pneumatic line filter.
(c)
Install the pneumatic line filter in the boss of the bleed air duct.
(d)
Tighten the pneumatic line filter to 90-110 pound-inches (10.1-12.4 N.m).
S 434-010
(2) Install the reducer on the pneumatic line filter:
(a)
Install a new gasket on the reducer.
(b)
Install the reducer.
S 434-015
(3) Connect the pressure line:
(a)
Remove the cap from the pressure line.
(b)
Connect the pressure line to the reducer.
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////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES/MAINTENANCE MANUAL ////////////////////////
S 414-012
(4) Close the APU cowl door:
(a)
Disconnect the door support rods.
(b)
Put the door support rods in the clips on the APU cowl door.
(c)
Close the APU cowl door.
(d)
Close the latches for the APU cowl door.
S 864-013
(5) Set the circuit breaker and the switch:
(a)
Remove the DO-NOT-CLOSE tag and close this circuit breaker: 1) E3-3 Electrical Shelf, APU Control Unit
(b)
Remove the DO-NOT-OPERATE tag from the APU master switch on the P5 forward overhead panel.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
COOLING AIR SHUTOFF VALVE PNEUMATIC LINE FILTER - CLEANING/PAINTING
___________________________________________________________________
1. General
_______
A. This procedure contains a task to clean the pneumatic line filter for the cooling air shutoff valve.
B. There are two types of pneumatic line filters. One is a filter that you cannot clean and must discard. The other type is a filter that you can clean. This procedure is only for the filter that you can clean.
C. The pneumatic line filter is in the pressure line between the pneumatic actuator and the bleed air duct. You must remove the filter to clean it. You can get access to the filter through the APU cowl door.
TASK 49-51-22-107-001
2. Clean the Pneumatic Line Filter
_______________________________
A. Standard Tools and Equipment
(1)
Compressed Air Source - 30 psig maximum
(2)
Small Container - sufficiently large to hold the filter element with the solvent
B. Consumable Materials
(1)
B00715 Solvent - Methyl Ethyl Ketone (MEK), TT-M-261
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