Piper Cherokee LANCE, Service Manual

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PIPER CHEROKEE SIX / LANCE SERVICE MANUAL
03/27/08 V - SURFACE CONTROLS
1I7
f. Set the flap control cable tension (handle next to floor, 0 degrees) as given in Table V-II at the
turnbuckle that is attached to the lower end of the flap handle in the floor tunnel. To do this and if
not previously removed, remove the flap handle cover and enough tunnel carpet to remove the
tunnel cover just aft of the handle. Adjust and resafety the turnbuckle.
NOTE: Do not rotate the torque tube while retensioning the cable or tighten tight enough to allow
tube to be pulled away from its stops.
g. To check up -neutral position of the flaps, place a flap rigging tool as shown in Figure 5-17 against
the underside of the wing and flap as close as possible to the outboard end of the flap without
contacting any rivets. The tool must be positioned parallel with the wing ribs with the aft end of the
tool even with the trailing edge of the flap. (This tool may be fabricated from dimensions given in
Figure 5-19.)
h. With the flap control rod connected between the torque tube crank arm and the flap, check that the
surface of the wing contacts the tool at its forward surface and at the spacer, and the aft end of the
flap contacts the aft end of the tool. The flap is neutral at this position.
i. Should the three points not contact, loosen the jam nuts on each end of the control rod and rotate
the rod until the three points contact. Apply a slight up pressure against the trailing edge of the flap
while making this adjustment. After adjustment, retighten the jam nuts.
Figure 5-16. Flap Stop Adjustment