TASK 31-25-01-404-026
3. Install the Clock_________________
A. Reference
(1) 24-22-00/201, Eletrical Power Control
B. Access
(1) Location Zones
211/212 Flight Compartment
C. Procedure
S 204-007
(1) Make sure the circuit breakers on the main power distribution panel, P6, are open:
(a)
For the left clock:
1) ON GUN 006-999;
6G2, CLOCK TIME BASE L
2) ON GUN 001-005; 6G3, CLOCK TIME BASE L
(b)
For the right clock:
1) ON GUN 006-999;
6G3, CLOCK TIME BASE R
2) ON GUN 001-005;
6G4, CLOCK TIME BASE R
S 204-008
(2)
Make sure the circuit breakers on the overhead circuit breaker panel, P11, are open:
(a)
For the left clock:
1) GUN 001-005;
11J9, CLOCK IND LEFT
2) ON GUN 006-999;
11B17, CLOCK IND LEFT
(b)
For the right clock:
1) 11J35, CLOCK IND RIGHT
(3)
Connect the electrical cable to the clock.
(4)
Move the clock into the panel.
S 434-011
(5)
Tighten the bottom left screw and the top right screw to hold the clock to the mounting clamp.
S 434-009
S 424-010
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757
MAINTENANCE MANUAL
S 864-012
(6) Supply electrical power (Ref 24-22-00).
S 864-013
(7) Remove the DO-NOT-CLOSE tags and close the P6 panel circuit breakers:
(a) (b) For the left clock: 1) ON GUN 006-999; 6G2, CLOCK TIME BASE L 2) ON GUN 001-005; 6G3, CLOCK TIME BASE LFor the right clock: 1) ON GUN 006-999; 6G3, CLOCK TIME BASE R 2) ON GUN 001-005; 6G4, CLOCK TIME BASE R
S 864-014
(8) Remove the DO-NOT-CLOSE tags and close the P11 panel circuit breakers:
(a) (b) For the left clock: 1) ON GUN 001-005; 11J9, CLOCK IND LEFT 2) ON GUN 006-999; 11B17, CLOCK IND LEFTFor the right clock: 1) 11J35, CLOCK IND RIGHT
S 864-028
(9) ON GUN 001-104; on the clock, set the GMT switch to the RUN position.
S 864-031
(10)
ON GUN 105-999; on the clock, set the SET switch to the RUN position.
S 864-036
(11)
ON GUN 001-104; Set the clock for the correct time:
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757 MAINTENANCE MANUAL 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 仪表 CHAPTER 31 - INSTRUMENTS 1(35)
