Piper Comanche PA-24 Service Manual page 269

Figure 5-7. Installation of Bellcrank Checking Tool
5-11. Rigging And Adjustment Of Aileron Control.
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.
A. To rig the aileron controls, set the aileron bellcrank in neutral by positioning a special aligning tool
within the wing as shown in Figure 5-7. (This tool may be fabricated from dimensions given in
Figure 5-17.) The tool (Side A) uses the inside surfaces of rear spar as reference. Align Side B with
centerlines of the bellcrank attaching bolt and turnbuckle attaching bolt.
B. With the bellcrank in neutral position, align the trailing edge of the aileron with the trailing edge of
the flap, by adjusting the aileron control rod. Ascertain that the flap is fully retracted. (Refer to
paragraph 5-1, 5-19, and 5-23.) Repeat this procedure for the other aileron.
C. Place a bubble protractor on the aileron, perpendicular to the hinge line, and adjust the bellcrank
stop bolts to specific aileron travel from neutral (Refer to Table V-I and Figure 5-8.)
D. With the aileron and bellcrank in neutral, set cable tension (Refer to Table V-I) to maintain
horizontal alignment of the lower surface of the control wheels. The aileron bellcranks must hit the
bellcrank stop before the control wheel hits its stops.
04/01/09
PIPER COMANCHE SERVICE MANUAL
Figure 5-8. Aileron Adjusting Points
1G9
V - SURFACE CONTROLS