(8)
Open these circuit breakers on the P11 panel and attach DO-NOT-CLOSE tags:
(a)
11H17, FLT CONT SHUTOFF TAIL LEFT
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(b)
11H18, FLT CONT SHUTOFF TAIL CTR
(c)
11H28, FLT CONT SHUTOFF TAIL RIGHT
F.
Elevator Freeplay - Check
S 866-068
WARNING: THE AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND
_______ STABLILIZER ARE FULLY POWERED SURFACES. MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE AWAY FROM THE CONTROL SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(1) Do the applicable group of steps to supply hydraulic power to one of the three PCAs for each elevator (do only the steps for the PCA you want to supply the power to):
NOTE: Measure the freeplay for each of the three PCAs that move the
____ elevator. During the measurement, make sure only one of the three elevator PCAs has power at a time.
(a) Do these steps to supply hydraulic power to the outboard PCAs: 1) Supply pressure to the right hydraulic system only (Ref 29-11-00/201).
2) Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel: a) 11H28, FLT CONT SHUTOFF TAIL RIGHT
3) Remove the DO-NOT-OPERATE tag and move the FLT CONTROL SHUTOFF R switch on the P61 panel to ON.
(b) Do these steps to supply hydraulic power to the middle PCAs: 1) Supply pressure to the left hydraulic system only (Ref 29-11-00/201).
2) Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel: a) 11H17, FLT CONT SHUTOFF TAIL LEFT
3) Remove the DO-NOT-OPERATE tag and move the FLT CONTROL SHUTOFF L switch on the P61 panel to ON.
(c) Do these steps to supply hydraulic power to the inboard PCAs: 1) Supply pressure to the center hydraulic system only (AMM 29-11-00/201).
2) Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel: a) 11H18, FLT CONT SHUTOFF TAIL CTR
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3) Remove the DO-NOT-OPERATE tag and move the FLT CONT SHUTOFF C switch on the P61 panel to ON.
S 866-008
(2)
Do these steps to put the control column in its neutral position:
(a)
Move the control column quickly in a longitudinal direction approximately 1 inch (2.54 mm) away from the neutral position 5 times.
(b)
Release the control column and let it go to its neutral position.
(c)
Attach DO-NOT-OPERATE tags to the control columns.
S 486-106
CAUTION: USA A DIAL INDICATOR WITH AT LEAST A 1-INCH STROKE TO PREVENT
_______ DAMAGE TO THE INDICATOR.
(3)
Do the steps that follow to attach the dial indicator or a scale (ruler with 0.001 or 0.010 inch (0.025 or 0.254 mm) increments) against the side of the fuselage:
(a)
Use double face tape and a steel plate to attach the magnetic base to the fuselage just aft of the elevator trailing edge.
NOTE: The fixed rod of the magnetic base will face outward.
____
(b)
Use adjustable rods to attach the dial indicator to the fixed rod of the magnetic base.
(c)
If you do not have a dial indicator or mounting accesories available, you can use a scale with 0.001 or 0.010 inch (0.025-0.254 mm) increments with the steps that follow: 1) Attach a pointer (pointing to the fuselage surface) to the
elevator lower trailing edge with tape.
2) Attach the scale to the fuselage surface with double face tape, and continue after dial indicator instructions given below.
NOTE: Set the elevator neutral position point on the scale
____ with pointer installed on elevator lower trailing edge when attaching the scale.
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