(f)
Make sure that the ELEV ASYM message is not shown on the EICAS display.
(g)
Close these circuit breakers on the P11 panel:
1) 11G17, CSEU 1R AC
or FLT CONT ELEC 1R AC
2) 11G27, CSEU 2R AC
or FLT CONT ELEC 2R AC
S 725-121
(4) Do the steps that follow for the right SAM elevator asymmetry limit interface test:
NOTE: Do not do this test for at least 10 seconds after the left
____
SAM interface test.
(a) Open these circuit breakers on the P11 panel:
1) 11C6, CSEU 1L AC
or FLT CONT ELEC 1L AC
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757 MAINTENANCE MANUAL
2) 11C8, CSEU 2L AC
or FLT CONT ELEC 2L AC
(b)
Stop for 2 seconds, then make sure that the ELEV ASYM message is not shown on the EICAS display.
(c)
Put the ADC test switch, on the P61 panel, to the test position for one of the ADCs.
(d)
Stop for 2 seconds, then make sure that the asymmetry limit actuator extends and then retracts.
NOTE: ADC test switch operation extends the elevator asymmetry
____ actuator for 13 seconds and then retracts it.
(e)
Stop for 20 seconds, then push AUTOREAD and then ERASE on the P61 panel (FIM 31-41-00/101, Fig. 109).
(f)
Make sure that the ELEV ASYM message is not shown on the EICAS display.
(g)
Close these circuit breakers on the P11 panel: 1) 11C6, CSEU 1L AC or FLT CONT ELEC 1L AC
2) 11C8, CSEU 2L AC
or FLT CONT ELEC 2L AC
L. Elevator Feel System EICAS Messages Test
S 865-267
WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES WHEN
_______ HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
(1) Make sure that the left, right, and center hydraulic systems are pressurized (AMM 29-11-00/201).
S 865-270
CAUTION: DO NOT LET THE PRESSURE GO ABOVE 4.75 PSI (32.8 KPA)
_______ (426 KNOTS). THIS WILL PREVENT DAMAGE TO THE FEEL COMPUTER. MAKE PRESSURE CHANGES SUCH THAT THE INDICATED RATE OF CLIMB (OR DESCENT) IS LESS THAN 5000 FEET PER MINUTE FOR THE STATIC SYSTEM AND 300 KNOTS PER MINUTE FOR THE PITOT SYSTEM.
(2) Pressurize auxiliary pitot systems No. 1 and 2 to between 4.35 to
4.45 psig (29.99 to 30.68 kPa) (410 to 415 knots)
(AMM 34-11-00/201).
NOTE: Use airspeed values only when the static pressure on the
____ airspeed indicator is open to ambient pressure.
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MAINTENANCE MANUAL
(3) S 865-124Put the computer select switch on the EICAS display select panel, P9, to L.
(4) S 215-125Stop for 10 seconds, then make sure that the ELEV FEEL message does not show on the EICAS display.
(5) S 865-126Remove the pressure from auxiliary pitot system No. 1 (AMM 34-11-00/201).
(6) S 215-127Stop for 30 seconds, then make sure that the ELEV FEEL message is shown on the EICAS display.
(7) S 865-128Put the computer select switch on the P9 panel to R.
(8) S 865-129Erase the EICAS display (AMM 31-41-00/201).
(9) S 215-130Stop for 30 seconds, then make sure that the ELEV FEEL message is shown on the EICAS display.
S 865-131
(10)
Remove the pressure from auxiliary pitot system No. 2 (AMM 34-11-00/201).
S 865-132
(11)
Pressurize auxiliary pitot system No. 1 to between 4.35 to 4.45 psi
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