(Continued)
Reference Title
78-31-00-010-804-F00 Close the Thrust Reverser (Selection) (P/B 201)
C. Prepare for the Procedure
SUBTASK 30-00-00-010-016
(1) Do this task: Open the Fan Cowl Panels, TASK 71-11-02-010-801-F00.
SUBTASK 30-00-00-010-017
(2) Do this task: Open the Thrust Reverser (Selection), TASK 78-31-00-010-801-F00.
SUBTASK 30-00-00-860-023
(3) Open these circuit breakers and install safety tags:
CAPT Electrical System Panel, P18-3
Row Col Number Name
A 6 C00148 ANTI-ICE & RAIN ENG 1 & WING CONT
A 7 C01001 ANTI-ICE & RAIN ENG 1 COWL AI VALVE
B 6 C00149 ANTI-ICE & RAIN ENGINE 2 CONTROL
D. Put the Cowl Anti-Ice Valve Inoperative Open
SUBTASK 30-00-00-860-024
(1) To manually position the valve in the OPEN position, do these steps:
(a) Loosen the retaining screw on the manual locking assembly.
(b) Move the hex shaft to the OPEN position:
(c) Slide the locking assembly up the shaft into the recess in the cover plate.
(d) Tighten the retaining screw 30 ±1 in-lb (3.39 ±0.11 N·m).
SUBTASK 30-00-00-020-007
(2) Disconnect, cap and stow the DP1302 ELECTRICAL CONNECTOR [3] on the ANTI-ICE
PRESSURE SWITCH [4] Figure 904.
SUBTASK 30-00-00-860-025
(3) Close the HIGH STAGE VALVE [5] from the 9th stage bleed air sourceFigure 905:
(a) Manually wrench the MANUAL OVERRIDE/POSITION INDICATOR [6] on the HIGH
STAGE VALVE [5] to the CLOSE position Figure 905.
(b) Loosen the position indicator screw.
(c) Slide the lock into the recess in the cover plate.
(d) Tighten the position indicator screw.
E. Secure the Engine Access Panels
SUBTASK 30-00-00-860-026
(1) Remove the safety tags and close these circuit breakers:
CAPT Electrical System Panel, P18-3
Row Col Number Name
A 6 C00148 ANTI-ICE & RAIN ENG 1 & WING CONT
A 7 C01001 ANTI-ICE & RAIN ENG 1 COWL AI VALVE
B 6 C00149 ANTI-ICE & RAIN ENGINE 2 CONTROL
SUBTASK 30-00-00-420-005
(2) Do this task: Close the Thrust Reverser (Selection), TASK 78-31-00-010-804-F00.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-00-00
Page 923
D633A101-ILF Feb 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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