SUBTASK 30-11-11-860-012
(2) Make sure that this circuit breaker is open and has safety tag:
CAPT Electrical System Panel, P18-3
Row Col Number Name
A 1 C00146 ANTI-ICE & RAIN WING ANTI-ICE VALVE
I. Wing Thermal Anti-Icing Shutoff Valve Installation
(SSM 30-11-11)
(WDM 30-11-11)
SUBTASK 30-11-11-420-001
(1) Put the valve [6] in its position.
SUBTASK 30-11-11-420-002
(2) Install the coupling [3] and coupling [4].
SUBTASK 30-11-11-420-004
(3) Do the following to connect the jumper [10]:
(a) Clean the bonding surfaces of the jumper, washers, and valve with alcohol, B00130, or
equivalent (SWPM 20-20-00, Section 2E, Cleaning of Faying Surfaces).
1) Use Cleaning Procedure 5 to clean the surfaces.
(b) Install the screw [12], washer [8], washer [11] and nut [7].
(c) Use an intrinsically safe approved bonding meter, COM-1550, to make sure the
resistance between the valve and the airplane structure is 0.0025 ohms or less.
SUBTASK 30-11-11-420-005
(4) Connect the electrical connector [1].
J. Wing Thermal Anti-Icing Shutoff Valve Installation Test
SUBTASK 30-11-11-860-002
(1) Remove the safety tag and close this circuit breaker:
CAPT Electrical System Panel, P18-3
Row Col Number Name
A 1 C00146 ANTI-ICE & RAIN WING ANTI-ICE VALVE
SUBTASK 30-11-11-700-001
(2) Do this task: Wing Anti-Icing Duct - Leak Test, TASK 30-11-00-790-801 to test for duct leaks.
SUBTASK 30-11-11-710-001
(3) Do this task: Wing Thermal Anti Icing Shutoff Valve Test, TASK 30-11-11-710-801.
K. Put the Airplane Back to Its Usual Condition
SUBTASK 30-11-11-410-001
(1) Close the applicable wing panels,
Number Name/Location
521AB Outboard Leading Edge Blowout Door - Slat Station 20.04
521AT Outbd Leading Edge - Gap Cover Access
621AB Outboard Leading Edge Blowout Door - Slat Station 20.04
621AT Outbd Leading Edge - Gap Cover Access
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-11-11
Page 409
D633A101-ILF Oct 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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