Piper PA-28-161, Maintenance Manual

Page: 361 / 1104

PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 11
Nov 30/06 2H11
27-10-00
(4) Disconnect the primary (13 or 17) and balance (18 or 19) control cables from the bellcrank
assembly by removing cotter pins, nuts, washers and bolts.
(5) Disconnect the aileron control rod (7) at the aft or forward end, as desired, by removing the
cotter pin, nut, washer and bolt.
(6) Remove the nut, pivot bolt (25) and washers that secure the bellcrank. The nut is visible from
the underside of the wing.
(7) Remove the bellcrank from within the wing.
B. Installation (Refer to Figure 4.)
(1) Install the bellcrank pivot bushing (26) with teflon tube (29) in torque tube portion of the
bellcrank (6).
(2) Place the bellcrank in position in the wing with a washer located between each end of the
torque tube and the mounting brackets.
(3) Install the bellcrank pivot bolt (25) with the head up. Install a washer and nut on the bolt, and
torque nut within 20 to 25 inch-pounds. Check that the bellcrank rotates freely with little
up-down play.
(4) Install and adjust control rod (7) and check aileron travel per Chart 2, 27-00-00.
(5) Connect the ends of the primary (13 or 17) and balance (18 or 19) control cables to the
bellcrank using bolts, washers, nuts and cotter pins. Allow the cable ends to rotate freely on the
bellcrank.
(6) Tighten the control cables at the balance cable turnbuckle (24) in the floor opening aft of the
main spar. Check cable tension per Chart 2, 27-00-00.
(7) Install the access plate on the underside of the wing and replace the floor panel or rear seat
bottom.
5. Rigging and Adjustment (Refer to Figures 5 and 6.)
CAUTION: VERIFY FREE AND CORRECT MOVEMENT OF AILERONS. WHILE IT WOULD SEEM
SELF-EVIDENT, FIELD EXPERIENCE HAS SHOWN THAT THIS CHECK IS
FREQUENTLY MISINTERPRETED OR NOT PERFORMED AT ALL. ACCORDINGLY,
UPON COMPLETION OF AILERON RIGGING AND ADJUSTMENT, VERIFY THAT THE
RIGHT AILERON MOVES UP AND THE LEFT AILERON MOVES DOWN WHEN THE
CONTROL WHEEL IS TURNED RIGHT; AND THAT THE LEFT AILERON MOVES UP AND
THE RIGHT AILERON MOVES DOWN WHEN THE CONTROL WHEEL IS TURNED LEFT.
NOTE: Flap adjustment must be completed before starting aileron adjustment.
A. To check and adjust the rigging of the aileron controls, first set the right and left aileron bellcranks at
neutral position. (Ascertain that the control chains have been rigged per Control Column,
Installation, above.) This may be accomplished by the following procedure:
(1) Remove the access plate to each aileron bellcrank located on the underside of the wing,
forward of the center aileron hinge by removing the plate attaching screws.
(2) Affix a bellcrank rigging tool, as shown in Figures 5 and 6, between the forward arm of each
bellcrank and the adjacent rib. (This tool may be fabricated from dimensions given in the
figure.) The slotted end of the tool fits on the arm forward of and adjacent to the primary control
cable end. The other end of the tool is positioned so that the side of the tool contacts the aft
side of the bellcrank stop. The bellcrank must be moved to allow a snug fit of the tool between
the bellcrank arm and rib. To do so, it may be necessary to loosen a primary control cable or
the balance cable. The neutral position may also be found by locating the position at which the
forward and aft cable connection holes are an equal distance from the adjacent outboard wing
rib.