Piper Aircraft Corporation Cherokee 140 PA-28-140, Service Manual

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PIPER CHEROKEE SERVICE MANUAL
01/31/08 IV - STRUCTURES
1H1
b. PA-28R:
1. Disconnect battery.
2. Close the fuel valve and drain the fuel from the wing to be removed. (Refer to Draining Fuel
System, Section II.)
3. Drain the brake lines and reservoir. (Refer to Draining Brake System, Section II.)
4. Drain the hydraulic lines of the landing gear of the wing to be removed by separating the lines
and elbows at the actuating cylinder.
5. Remove the access plate at the wing butt rib and wing inspection panels. (Refer to Access
Plates and Panels, Section II.)
6. Remove the front and back seats from the airplane.
7. Expose the spar box and remove the side trim cockpit panel assembly that corresponds with
the wing being removed.
8. Place the airplane on jacks. (Refer to Jacking, Section II.)
NOTE: To facilitate reinstallation of control cables, fuel and hydraulic lines, mark cable and
line ends and/or attach a line where applicable to cables before drawing them through
fuselage or wing.
9. Disconnect the aileron balance and control cables at the turnbuckles that are located within the
fuselage aft of the spar.
10. If the left wing is being removed, remove the cotter pin from the pulley bracket assembly to
allow the left aileron balance cable end to pass between the pulley and bracket.
11. Disconnect flaps from the torque tube by fully lowering flaps and removing the bolt and
bushing from the bearing at the aft end of the control rod.
CAUTION: TO PREVENT DAMAGE AND CONTAMINATION OF FUEL, HYDRAULIC
AND OTHER LINES, CAP OR PLUG ALL LINE ENDS WHICH ARE
SEPARATED DURING WING REMOVAL.
12. Disconnect the fuel line at the fitting located inside of the wing, by removing the access panel
on the forward inboard portion of the wheel well and reaching through to the fuel line
coupling.
13. Remove clamps and/or ties as required to release the electrical harness assembly. Disconnect
applicable electrical leads from the terminal strip assembly by removing the cover, and
appropriate nuts and washers.
14. With the appropriate trim panel removed, disconnect the hydraulic brake line at the fitting
located within the cockpit at the leading edge of the wing.
15. Disconnect the landing gear hydraulic lines at the fittings aft of the spar and within the
fuselage.
16. If the left wing is being removed, it will be necessary to disconnect pitot and static tubes at the
elbows located within the cockpit at the wing butt line.
17. Arrange a suitable fuselage cradle and supports for both wings.