(b)
Make sure these indications for the left power channel show on the lower EICAS display: 1) AC-V = 115 |5 2) FREQ = 400 |5
(c)
Momentarily push the L GEN DRIVE DISC switch (P5). 1) Make sure these lights come on:
a) The yellow DRIVE light in the L GEN DRIVE DISC switch (P5).
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(d)
(e)
(f)
(g)
(h)
(i)
(j)
(k)
757 MAINTENANCE MANUAL
b) AIRPLANES WITH GEN FIELD CONT SWITCHES ON P61 MAINTENANCE PANEL (WDM 24-22-11); The white FIELD OFF light in the switch for the left generator field (P61).
2) Make sure these indications for the left power channel show on the lower EICAS display: a) AC-V = 0 |5 b) FREQ = 0 |5
3) Make sure these indications show on EICAS: a) L GEN OFF b) L GEN DRIVE
Stop the left engine (Ref 71-00-00).
Push the AUTO EVENT READ switch on the EICAS maintenance panel
(P61).
Push and hold the ERASE switch on the EICAS maintenance panel
(P61) for 3 seconds.
1) Make sure the AUTO EVENT on the EICAS erases.
Open the fan cowl panels of the left engine (Ref 71-11-04).
Slowly pull the disconnect reset ring on the IDG to the outer
limit and monitor the force necessary.
1) The operation of the ring must be smooth and must move
freely. 2) A click will be felt while you pull the ring to the outer
limit.Permit the disconnect reset ring to go back slowly to the maximum inner position. 1) The operation of the ring must be smooth and must move
freely.Slowly pull the ring to the outer limit, and monitor the force necessary. 1) The force must be less than when you pulled the ring the
first time. 2) There must be no click.Permit the ring to slowly go back to the maximum inner position. 1) If the IDG does not correctly set, replace the IDG
(AMM 24-11-01/401).
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S 415-019
(2) Close the fan cowl panels (AMM 71-11-04/201).
S 745-020
(3) Push the RESET switch on the front of the BPCU (E5-3). (a) Make sure these indications show on the BPCU: 1) EXTERNAL POWER SYSTEM 2) LEFT GEN POWER SYSTEM 3) RIGHT GEN POWER SYSTEM 4) APU GEN POWER SYSTEM
S 845-015
(4) Put the Airplane Back to its Usual Condition (a) Remove electrical power if it is not necessary (AMM 24-22-00/201). (b) Put the BAT switch (P5) in the OFF position.
TASK 24-11-00-715-003
4. The Operational Test for the Right IDG
______________________________________
A. General
(1) This procedure does these tests:
(a)
The Operation Test
(b)
The Load Test
(c)
The IDG Disconnect Test and the Connect Test
B. References
(1)
AMM 24-22-00/201, Electrical Power - Control
(2)
AMM 71-00-00/201, Power Plant (Operating Procedures)
(3)
AMM 71-00-00/501, Power Plant
(4)
AMM 71-11-04/201, Fan Cowl Panels
C. Access
(1) Location Zones 212 Flight Compartment (RH Side) 119/120 Main Equipment Center 410 Power Plant Nacelle (Left) 420 Power Plant Necelle (Right)
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(2) Access Panels
413/423 Fan Cowl Panels (Left)
414/424 Fan Cowl Panels (Right)
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