D. Prepare for the Test
S 745-039
(1)
Do the BITE test (AMM 24-11-00/501).
S 865-040
(2)
Supply external or APU power to the 115V ac buses
(AMM 24-22-00/201).
S 045-025
WARNING: DO THE DEACTIVATION PROCEDURE FOR THE SPOILERS OR MOVE ALL
_______ PERSONS AND EQUIPMENT AWAY FROM THE SPOILERS. THE SPOILERS CAN RETRACT QUICKLY AND CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3) Do the deactivation procedure for the spoilers (AMM 27-61-00/201) or move all persons and equipment away from the spoilers.
E. The Operation Test
S 715-041
(1) Do the operation test:
(a)
Set the R GEN CONT switch on the P5 panel to the OFF position.
(b)
Make sure these lights are on: 1) The yellow OFF light in the R GEN CONT switch (P5). 2) The yellow DRIVE light in the R GEN DRIVE DISC switch (P5).
(c)
Set the selection switch for the EICAS computer on the P9 panel to the AUTO position.
(d)
Push the selection switch for the ELECT/HYD display on the right side panel P61.
(e)
Make sure these indications for the right power channel show on the lower EICAS display: 1) AC-V = 0 |5 2) FREQ = 0 |5 3) Make sure no R GEN OFF or R GEN DRIVE show on the EICAS
display.
(f)
Operate the right engine (AMM 71-00-00/201).
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CAUTION: MAKE SURE THE YELLOW DRIVE LIGHT IN THE R GEN DRIVE DISC
_______ SWITCH (P5) GOES OFF AFTER YOU START THE ENGINE. HIGH OIL OUT TEMPERATURE OR LOW OIL PRESSURE CAN CAUSE DAMAGE TO THE IDG.
(g) After 30 seconds, make sure the DRIVE light in the R GEN DRIVE DISC switch (P5) is off.
CAUTION: DO NOT DISCONNECT THE IDG UNLESS THE ENGINE SPEED
_______ IS AT, OR OR GREATER THAN IDLE SPEED. THE IDG WILL NOT DISCONNECT FULLY AND DAMAGE TO THE IDG DRIVE GEAR TEETH COULD OCCUR.
1) If the DRIVE light in the R GEN DRIVE DISC switch (P5)
comes on, push the R GEN DRIVE DISC switch. 2) Stop the engine (AMM 71-00-00/201). 3) Isolate the problem which caused the DRIVE light to come
on.
(h)
Make sure the yellow OFF light in the R GEN CONT switch (P5) is on.
(i)
Push the R GEN CONT switch (P5) to the ON position.
(j)
Make sure these lights are off: 1) The OFF light in the R GEN CONT switch (P5). 2) The two BUS OFF lights (P5). 3) The DRIVE light in the R GEN DRIVE DISC switch (P5).
(k)
Make sure these indications for the right power channel show on the lower EICAS display: 1) AC-V = 115 |5 2) FREQ = 400 |5
a) If the frequency is out of the tolerance, adjust the
IDG.
3) IDG OUT = 80 |50
4) IDG RISE = 20 |17
(l)
If the white ON light in the EXT PWR switch (P5) is on, push and release the EXT PWR switch to open the external power contactor. 1) Make sure the white ON light in the EXT PWR switch (P5) is
off.
(m)
Push the L GEN CONT switch (P5) to the OFF position.
(n)
Push the APU GEN CONT switch (P5) to the OFF position.
(o)
Make sure the left and right BUS OFF lights (P5) are off.
(p)
Push the right BUS TIE switch (P5) to the ISLN (out) position.
(q)
Make sure the left BUS OFF light (P5) is on.
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(r)
Push the right BUS TIE switch (P5) to the AUTO (in) position.
(s)
Make sure the left BUS OFF light (P5) is off.
S 745-042
(2) Do the BITE test (AMM 24-11-00/501).
F. The Load Test
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