(f)
AIRPLANES WITH ETOPS OR WITH TR SYNC LOCKS;
11D12, ENGINES T/R CONT-L
(g)
AIRPLANES WITHOUT ETOPS OR TR SYNC LOCKS;
11K5, THRUST REVERSER IND
(h)
AIRPLANES WITHOUT ETOPS OR TR SYNC LOCKS;
11K6, THRUST REVERSER CONT
(i)
AIRPLANES WITHOUT ETOPS OR TR SYNC LOCKS;
11K32, THRUST REVERSER IND
(j)
AIRPLANES WITHOUT ETOPS OR TR SYNC LOCKS;
11K33, THRUST REVERSER CONT
(k)
11R33, DOOR IND
(l)
11R36, PROX SW TEST
(m)
11S23, POS SYS 2
S 014-019
(3)
Get access to the APU external power panel, P34, and the PSEU thru the access door for the main equipment center, 119BL (AMM 06-41-00/201).
S 864-006
(4)
Open this circuit breaker on the APU external power panel, P34, and attach DO-NOT-CLOSE tag:
(a)
34A5, CARGO DOOR CONT
D.
Remove the Proximity Switch Electronics Unit (Fig. 401)
S 914-020
CAUTION: DO NOT TOUCH THE PROXIMITY SWITCH ELECTRONICS UNIT BEFORE YOU
_______ DO THE PROCEDURE FOR DEVICES THAT ARE SENSITIVE TO ELECTROSTATIC DISCHARGE. ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE PROXIMITY SWITCH ELECTRONICS UNIT.
(1)
Do the procedure for devices that are sensitive to electrostatic discharge (AMM 20-41-01/201).
(2)
Remove the PSEU (AMM 20-10-01/401) from the E3-4 shelf.
S 024-008
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A
757
MAINTENANCE MANUAL
PROXIMITY
SWITCH
ELECTRONICS
UNIT (M162)
SEE A SEE B
MAIN EQUIPMENT
CENTER ACCESS DOOR
119BL (REF) MAIN EQUIPMENT E3-4
CENTER ACCESS DOOR 119BL (REF) SHELF (REF) FWD
MAIN EQUIPMENT CENTER
PROXIMITY SWITCH
A
ELECTRONICS UNIT (M162)
TARGET NEAR OR FAR INDICATOR LIGHTS PANEL LAMP TEST SWITCH BITE PANEL
SEE C THUMBWHEEL SENSOR CHANNEL SELECTOR DIALS (3)
LRU NUMBER 3-DIGIT DISPLAY
LRU INDICATOR LIGHTS
TARGET TEST SYSTEM
SWITCH TEST
SWITCH
E3-4 MOUNTING SHELF
FWD TRAY (REF) (REF)
HOLD DOWN EXTRACTOR INFLIGHT MEMORY RESET (SELF-LOCKING
MALFUNCTION SWITCH MECHANISM) RECALL SWITCH (RECESSED) (REF)
BITE PANEL B
C
Proximity Switch Electronics Unit Installation Figure 401
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A
757 MAINTENANCE MANUAL
TASK 32-09-04-404-009
3. Install the Proximity Switch Electronics Unit (Fig. 401)_____________________________________________
A. References
(1)
AMM 20-41-01/201, Electrostatic Discharge Sensitive Devices
(2)
AMM 24-22-00/201, Electrical Power - Control
(3)
AMM 27-61-00/201, Spoiler Speedbrake Control System
(4)
AMM 32-09-02/201, Air/Ground Relays
B.
Access
(1)
Location Zones
119 Main Equipment Center
211/212 Control Cabin
(2)
Access Panel
119BL Main Equipment Center
C.
Install the Proximity Switch Electronics Unit
S 914-021
CAUTION: DO NOT TOUCH THE PROXIMITY SWITCH ELECTRONICS UNIT BEFORE YOU
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