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. The inboard ends of the ailerons may be allowed to droop by approximately 1/8 inch.
c. Adjust primary and balance cable tension as given in Table V-I by the following procedure:
1. Remove the two front seats if desired 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. Ascertain 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 Table V-I for correct cable tension and finish adjustment with even
tension on all cables. Remove rigging pin or tool.
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.
999
.250
.750
3.10
.625
.125
.062 R.
.062 R.
.062 R.
1.0
3.85
TOOL MATERIAL;
.125 X 3.85 X 1.0
ALLUM PLATE
RIGGING TOOL
Figure 5-4 Bellcrank Rigging Tool
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY 28, 1989
S U R FACE CONTROL
1G9