Piper Arrow IV, Руководство по обслуживанию

Страница: 267 / 752

E. Should tension be incorrect, loosen the turnbuckle of the lower cable in the aft section of the
fuselage and adjust the turnbuckle of the upper cable to obtain correct tension. Cable tension
should be obtained with the control wheel at the one-half + 1/4 inch dimension from the stop and
the stabilator contacting its stop.
F. Check safety of all turnbuckles and bolts.
G. With the tension of the upper cable correct and the control wheel still forward, adjust the
turnbuckle of the lower cable to obtain correct tension.
H. Check the full travel of the control wheel with relation to the full travel of the stabilator to
determine that the stabilator contacts its stops before the control wheel contacts its stops. With the
control wheel in the fore and aft positions, the travel distance from the point where the stabilator
contacts its stops and the control wheel contacts its stops should be approximately equal. Readjust
turnbuckles if incorrect.
I. Reinstall access panels.
4. Remove the airplane from jacks.
STABILATOR TRIM CONTROLS.
REMOVAL OF STABILATOR TRIM ASSEMBLY. (Forward) (Refer to Figure 27-18.)
1. To remove the trim control wheel assembly and/or the trim control cables, first remove the panel to the
aft section of the airplane.
2. If the aft trim cable is not to be removed, block the cables at the pulleys in the upper aft section of the
fuselage to prevent them from unwrapping from the trim drum. (Refer to Figure 27-17.)
3. Loosen the cables if the trim control wheel is to be removed or disconnect if the cables are also to be
removed. Do this at the trim cable turnbuckles in the aft section of the fuselage.
4. The control wheel with drum may be removed by the following procedure:
A. Remove the control wheel cover by removing the cover attaching screws.
B. The wheel assembly may be removed from its mounting brackets by removing nut, washer and
bolt that secures the wheel between the brackets. Draw the wheel from the brackets. Use caution
not to damage trim indicator wire.
C. Unwrap the left cable from the drum.
D. The wheel and drum are joined by a push fit, separate these two items with their center bushing
and unwrap the right cable.
E. Tie the cables forward to prevent them from slipping back into the floor tunnel.
5. The trim control cables may be removed by the following procedure:
A. Remove the rear seat bottom or floor panel, whichever applies, and the front seats, if desired.
B. Unfasten the carpet from the aft portion of the floor tunnel and lay it forward.
C. Remove the tunnel cover located between the trim control wheel and the spar cover by removing
attaching screws.
D. Remove the cable pulleys located in the tunnel by removing the cotter pin, washer and clevis pin.
E. Remove the cable rub blocks located on the aft side of the main spar by removing the block
attaching screws.
F. Remove the cable guard pin at the pulley cluster located just aft of the wing flap torque tube at
station 127.25.
27-35-01
Page 27-32
Revised: February 23, 1979
1L3
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL