Installation Of Aileron Bellcrank Assembly; Rigging And Adjustment Of Aileron Controls - Piper Lance II Service Manual

LANCE II SERVICE MANUAL
5-10. INSTALLATION OF AILERON BELLCRANK ASSEMBLY. (Refer to Figure5-2.)
a. Ascertain that the bellcrank pivot bushing (26) and teflon tube (27) are installed in the
torque tube portion of the bellcrank (6).
b. Place the bellcrank in position in the wing with a washer located between each end of
the torque tube and the mounting location.
c. Install the bellcrank pivot bolt (25) with the head up. Install tapered washers and nut
on the bolt and torque nut 20 to 25 inch-pounds. Check that the bellcrank rotates freely with
little up-down play.
d. Install and adjust control rod (7) and check aileron travel per Paragraph 5-11.
e. 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.
f. Tighten the control cables at the balance cable turnbuckle (24) in the floor opening aft
of the main spar. Check cable tension per Paragraph 5-11.
g. Install the access plate on the underside of the wing, the floor panel aft of the main
spar, seat belt attachments and seats.
5-11. RIGGING AND ADJUSTMENT OF AILERON CONTROLS.
NOTE
Flap adjustment must be complete 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
Paragraph 5-5.) This may be accomplished by the following procedure:
I. Remove the access plate to each aileron bellcrank located on the underside of the
wing, forward of the inboard end of the aileron by removing the plate attachment screws.
2. Place tee bar in'full forward position. Keep it in this position by using a suitable
tool or by placing weights on the aft side of the stabilator if stabilator cables have been
previously tensioned.
3. Affix a bellcrank rigging tool, as shown in Figure 5-3 between the forward arm
of each bellcrank and the adjacent rib. 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. (This tool may be fabricated from
dimensions given in Figure 5-19.) Neutral position of the bellcrank may also be found by
locating the center of the balance cable attachment bolt or the hole in the aft arm of the
bellcrank three inches from the face of the adjacent rib.
Revised: 10/3/80 SURFACE CONTROLS
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