PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 12
Nov 30/06
2H12
27-10-00
B. With each bellcrank set at neutral, the ailerons may be checked and adjusted for neutral as follows:
(1) Ascertain that the flaps are rigged in accordance with 27-50-00, and in their up locked position.
(2) Place the control column tee bar in the full forward position and maintain in this position by use
of a suitable tool, or by placing weights on the aft side of the stabilator, if the stabilator cables
have been previously tensioned.
(3) Verify that both bellcranks are at their neutral positions.
(4) With the aileron control rod connected between the bellcrank and aileron, check that the
trailing edge of the aileron is even with the trailing outboard edge of the flaps. Insure that the
flaps are rigged correctly per 27-50-00. This is the aileron neutral position. The inboard ends of
the ailerons may be allowed to droop by approximately 1/8 inch.
(5) Should the two trailing edges (aileron and flap) not align, disconnect the aileron control push
rod from the bellcrank and aileron, and loosen the jam nuts at each rod end and adjust the rod
ends to obtain trailing edge alignment. Apply a slight up pressure against the trailing edge of
the aileron while making this adjustment. Ascertain that there is sufficient thread engagement
at both rod ends. Any adjustment should be distributed between both rod ends.
C. Adjust primary and balance cable tension as given in Chart 2, 27-00-00 by the following procedure:
(1) Remove the two front seats if desired, and raise the bottom of the rear seat to facilitate in the
necessary operation.
(2) Loosen the connecting bolts of the idler crossover sprockets at the control tee bar to allow the
chain to fit snug around the control wheel sprockets and over the idler sprockets: then tighten
bolts.
(3) Check that both bellcranks are at their neutral position.
(4) Adjust the turnbuckles (located in the access opening just aft of the main spar) of the primary
and balance cables to their proper cable tension and maintain neutral center position of the
control wheels. To obtain neutral position of both control wheels, it may also be necessary to
adjust the roller chain turnbuckle located between the control wheel sprockets. Refer to
Chart 2, 27-00-00 for correct cable tension, and finish adjustment with even tension on all
cables. Remove rigging pin or tool.
D. Check the ailerons for correct travel from neutral per dimensions given in Chart 2, 27-00-00. When
measuring down travel, maintain a light up pressure on the center of the aft edge of the aileron.
When measuring up travel, maintain a light down pressure (at the up position only). Use only
enough pressure to remove slack between the bellcrank and the aileron.
E. Check the bellcranks stops to assure that the bellcrank contacts are made simultaneously, but still
have cushion before contacting the control wheel stops. On the adjustable aileron tee bar stops, the
aforementioned cushion should be maintained at 0.030 to 0.040 inch between sprocket pin and
adjustable stop bolts. (Refer to Figure 1.)
F. Check complete system for operation and safety of turnbuckles, bolts, etc.
H. Install the access plates and panels, and any seats which were removed.
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