Piper Cherokee LANCE, Service Manual

Page: 186 / 854

PIPER CHEROKEE SIX / LANCE SERVICE MANUAL
V - SURFACE CONTROLS 03/27/08
1I6
5. Attach the cable end to the tension chain (20) and secure with bushing, clevis bolt, nut and
cotter pin. If the chain is not installed because of the torque tube assembly being removed,
install the assembly as given in step c.
6. Pull the flap handle (29) full back and connect the tension spring (22) to the cable end.
e. Install the tunnel cover and secure with screws. Also the tunnel carpet, heat deflectors, and bracket
cover.
f. Install the floor panel and seat belt attachments. Secure with screws and install seats.
5-35a. TORQUE TUBE/PUSH ROD DISTORTION INSPECTION.
If flaps have been extended at or above V
FE
, inspect the flap torque tube arms and pushrods for evidence
of distortion.
a. If the paint is cracked or peeling anywhere along the torque tube arm or pushrod, torsional
movement has occurred.
b. Remove the paint and inspect for cracks:
1. In the welds at the arm on the torque tube end.
2. In the rod ends and pushrod tube.
3. Use a dye penetrant method of inspection.
c. If cracks are not found, repaint the part(s) and reinstall.
d. If cracked, replace the affected part(s).
5-36. RIGGING AND ADJUSTMENT OF WING FLAPS.
(PIR-PPS50005-1, Rev. AF.)
CAUTION: VERIFY FREE AND CORRECT MOVEMENT OF FLAPS. 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 FLAP RIGGING AND ADJUSTMENT, VERIFY THAT THE
FLAPS MOVE UP WHEN THE FLAP HANDLE IS PUSHED DOWN; AND, THAT THE
FLAPS MOVE DOWN WHEN THE FLAP HANDLE IS PULLED UP.
NOTE: Flap rigging and adjustment must be completed before starting aileron rigging and adjustment.
a. Place the flap handle in the full forward position.
b. If not previously removed, remove the floor panel just aft of the main spar.
c. To adjust the flap up stop and step lock, loosen the jam nut of the right torque tube stop screw,
located in the floor opening along the outer end of the flap torque tube, and turn the stop screw to
obtain approximately .60 of an inch between the stop fitting and the bearing block as measured
along the top side of the screw. (Refer to Figure 5-16.) It may be necessary to loosen the
adjustment screw of the left stop.
d. Place a .125 spacer between the stop fitting and the end of the screw. Determine that when pressure
is applied down on the flap, it will remain in the up-lock position. If it extends, turn the adjustment
screw out a few threads at a time until the flap remains in the up-lock position with the spacer
inserted. Tighten the jam nut.
e. Rotate the left stop adjustment screw until it contacts the stop fitting. Tighten the jam nut.