30-21-01
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MAINTENANCE MANUAL
HIGH PRESSURE SWITCH
SEE B
LOW PRESSURE SWITCH SEE C SEEA
ANTI-ICE HIGH AND LOW
PRESSURE SWITCHES
RELIEF BOLT INTERNAL BOLT A
WASHERS FLEXIBLE
INTERCONNECTING HOSE
TUBE
MOUNTING BRACKET
ADAPTER PRESSURE
TUBE BOLT SWITCH BOLT
OUTER HALF INNER HALF INTER-CLAMP CLAMP CONNECTING
WASHER TUBE
WASHER NUT WASHERS HARNESS CLIP
WASHER BOLT ELECTRICAL CONNECTOR
NUT
C B
Engine Inlet Thermal Anti-Ice High and Low Pressure Switches Installation Figure 401
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S 034-017
(5)
Remove the internal relief bolt and the flat washers from the sides of the interconnecting tube.
S 034-069
(6)
Remove the two bolts, washers and the outer half clamp. Keep the pressure switch on the mounting bracket.
S 034-068
(7)
Remove the three nuts, washers and bolts that hold the pressure switch to the mounting bracket.
S 424-067
(8)
Move the pressure switch from the mounting bracket and remove them together with the inner half clamp.
S 494-066
(9)
Put covers on the openings and connectors.
TASK 30-21-01-004-018
3. Remove the Low Pressure Switch (Fig. 401)______________________________
A. References
(1)
AMM 70-50-02/201, Connection of Electrical Plugs
(2)
AMM 71-11-04/201, Fan Cowl Panels
(3)
AMM 78-31-00/201, Thrust Reverser System
B. Access
(1)
Location Zones
413 No. 1 Power plant
423 No. 2 Power plant
(2)
Access Panels
413AL Fan cowl panel (Left)
423AL Fan cowl panel (Right)
C. Procedure - Remove the Low Pressure Switch
S 864-076
(1) Open these circuit breakers on the overhead circuit breaker panel, P11, and attach DO-NOT-CLOSE tags:
(a) 11C27 or 11C26, ENG ANTI-ICE LEFT
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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(59)
