(2)
12-31-11/201, Body Station 41 Access Doors and Panels
(3)
24-22-00/201, Manual Control
B. Access
(1)
Location Zone (Ref 12-31-01/201)
(a) 203, Nose Wheel Well
(2)
Access Panel (Ref 12-31-11/201)
(a) 1103L, Forward Access Door
C. Prepare For The Removal Of The EFIS Cooling System Low Flow Sensor
S 864-002
(1)
Remove the electrical power from the airplane (Ref 24-22-00/201).
S 014-003
(2)
Remove the access panel, 1103L (Ref 12-31-11/201).
D. Procedure
S 024-004
(1) Remove the EFIS cooling system low flow sensor:
(a)
Disconnect the electrical connector.
(b)
Remove the lockwire.
(c)
Loosen the EFIS cooling low flow sensor.
(d)
Remove the EFIS cooling system low flow sensor from the duct boss.
(e)
Remove the O-ring from the EFIS cooling system low flow sensor.
TASK 21-58-45-404-005
3. Install EFIS Cooling System Low Flow System (Fig. 401)___________________________________________
A. References
(1)
12-31-01/201, Zone Diagrams
(2)
12-31-11/201, Body Station 41 Access Doors and Panels
(3)
21-58-02/501, EFIS Cooling System
(4)
24-22-00/201, Manual Control
B. Access
(1) Location Zone (Ref 12-31-01/201)
(a) 203, Nose Wheel Weel
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH EFIS ú
21-58-45
ú ú 01 Page 401 ú Jul 15/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
EFIS Cooling System Low Flow Sensor
Figure 401
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH EFIS ú
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ú ú 01 Page 402 ú Mar 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
(2) Access Panel (Ref 12-31-11/201)
(a) 1103L, Forward Access Door
C. Procedure
S 424-006
(1) Install the EFIS cooling system low flow sensor:
(a)
Install a new O-ring on the EFIS cooling system low flow sensor.
(b)
Install the EFIS cooling system low flow sensor in the duct boss.
(c)
Install new lockwire.
(d)
Connect the electrical connector.
D. Do An Operational Test Of The EFIS Cooling System Low Flow Sensor
S 864-008
(1)
Supply electrical power to the airplane (AMM 24-22-00/201).
S 714-009
(2)
Do the EFIS cooling system operational test (AMM 21-58-02/501).
E. Put The Airplane Back To Its Usual Condition
S 414-007
(1)
Install the access plate, 3103R (AMM 12-31-11/201).
(2)
Remove the electrical power from the airplane (AMM 24-22-00/201).
S 864-010
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH EFIS ú
21-58-45
ú ú 01 Page 403 ú Mar 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
EQUIPMENT COOLING SYSTEM - CLEANING/PAINTING
____________________________________________
1. General_______
A. There are two tasks in this procedure:
(1) The first task is to clean the equipment and the EFIS cooling system sensors.
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