(k)
Subtract the dimension for the right elevator with the control column at neutral from the dimension for the control column forward.
(l)
Subtract the above difference from the above sum.
(m)
Make sure the difference is between 19.90 and 22.50 inches
(505.5 and 571.5 mm).
S 725-116
(3) Do the steps that follow for the asymmetry limits (actuator extended) test:
WARNING: USE PRECAUTIONS TO PREVENT SHORT CIRCUITS AND ELECTRICAL
_______ SHOCKS WHEN THE ELECTRICAL SYSTEMS ARE ENERGIZED. INJURY TO PERSONS CAN OCCUR.
(a) Open this circuit breaker on the P11 panel and attach a DO-NOT-CLOSE tag: 1) 11J12, ELEVATOR LIMIT
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(b)
Remove the electrical connector from the asymmetry limiter actuator.
(c)
Connect the breakout box and the -29 cable assembly to the asymmetry limiter actuator connector.
(d)
Connect the power supply to the breakout box at pins 1 and 2.
(e)
Apply 28v dc across pins 1 and 2 to extend the asymmetry actuator.
(f)
Pull the captain's control column aft until the elevator stops.
(g)
Measure and write down the distance of the left and right elevator from the center of the locating hole in the index plate.
(h)
Subtract the distance of the left elevator when the control column is at neutral from the distance when it is pulled aft.
(i)
Subtract the distance of the right elevator when the control column is at neutral from the distance when it is pulled aft.
(j)
Subtract the difference for the right elevator from the difference for the left elevator.
(k)
Make sure that the calculated value is between 6.05 and 7.80 inches (153.7 and 198.1 mm).
(l)
Push the captain's control column forward until the left elevator stops.
(m)
Measure and write down the distance of the left and right elevator from the locating hole in the index plate.
(n)
Add the dimension for the left elevator with the control column forward to the dimension for the control column at neutral.
(o)
Subtract the dimension for the right elevator with the control column at neutral from the dimension for the control column forward.
(p)
Subtract the above difference from the above sum.
(q)
Make sure the difference is between 6.05 and 7.80 inches (153.7 and 198.1 mm).
S 865-117
(4)
Put the airplane back to its usual condition.
(a)
Let the captain's control column go to the neutral position.
(b)
Disconnect the power supply from Pins 1 and 2 on the breakout box.
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(c)
Connect the power supply to Pins 1 and 3 on the breakout box.
(d)
Apply 28v dc across Pins 1 and 3 to retract the asymmetry actuator.
(e)
Disconnect the power supply from the breakout box.
(f)
Disconnect the breakout box and the cable assembly from the actuator connector.
(g)
Connect the airplane electrical connector to the asymmetry actuator.
(h)
Remove the blocking tools from the first officer's aft quadrant.
(i)
Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel: 1) 11J12, ELEVATOR LIMIT
(j)
Close the access door for the aft stabilizer compartment, 313AL (AMM 06-42-00/201).
K.
757-200; Elevator Asymmetry Limiting System EICAS Messages Test
S 865-118
(1)
Do the steps that follow to prepare for the asymmetry limiting system EICAS messages test:
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本文链接地址：757 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 3(40)
