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D. ON ENGINES WITHOUT SB 30-9534; Procedure
S 862-052
(1)
Open the circuit breakers on the overhead panel P11 to isolate the anti-icing PRV, and attach a DO-NOT-CLOSE tags.
S 012-053
(2)
Open the left fan cowl panel (AMM 71-11-04/401). Obey the
precautions that apply to Kevlar wrapping.
S 032-054
(3)
Remove the bolts (2) that hold the override assembly (1) to the valve body.
S 032-092
(4)
Remove the override assembly (1), the gaskets (3), and the position indicator plate (4) from the valve body.
S 432-055
(5)
Put the position indicator plate (4) and the gasket (3) on the valve body (Fig. 201, Detail A).
S 432-056
(6)
Install the override assembly (1), with the tongue up, on the position indicator plate (4) (Fig. 201, Detail A).
S 432-057
(7)
Install and torque tighten the bolts (2) (AMM 70-51-00/201).
S 862-058
(8)
Close the fan cowl panel (AMM 71-11-04/401).
S 862-059
(9)
On the overhead circuit breaker panel P11, remove the DO-NOT-CLOSE tags and close the circuit breaker to put back the power to the anti-icing PRV.
E. ON ENGINES WITH SB 9534; Procedure
S 862-066
(1) Open the circuit breakers on the overhead panel P11 to isolate the anti-icing PRV, and attach a DO-NT-CLOSE tags.
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30-21-99
ALL ú ú 01 Page 210 ú Sep 28/00
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757
MAINTENANCE MANUAL
S 012-067
(2)
Open the left fan cowl panel (AMM 71-11-04/401). Obey the precautions that apply to Kevlar wrapping.
S 032-068
(3)
Disconnect the electrical connector (8) from the valve position indicator assembly.
S 032-069
(4)
Remove the bolts (2) that hold the override assembly (1) to the valve body.
S 032-070
(5)
Remove the valve position indicator assembly (7), the gaskets (3), the position indicator plate (4) and the override assembly (1) from the valve body.
S 432-071
(6)
Install the gasket (3) and the valve position indicator assembly (7). Make sure the pin on the valve position indicator assembly engages with the groove in the valve head (Fig. 201, Detail B).
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本文链接地址：757 AMM 飞机维护手册 防冰和排雨 CHAPTER 30 - ICE AND RAIN PROTECTION(83)
