Piper PA-28-161, Maintenance Manual

Page: 799 / 1104

PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 1
Nov 30/06 4H5
57-40-00
ATTACH FITTINGS
1. Wing
NOTE: The major subassemblies of the wing may be removed individually or the wing may be removed
as a unit. To remove a wing, a fuselage supporting cradle is required.
A. Removal (Refer to Figure 1.)
(1) Disconnect the battery.
(2) Close the fuel valve and drain the fuel from the wing to be removed. (See Fuel System,
Draining Entirely, 12-10-00.)
(3) Drain the brake lines and reservoir. (See Brake System, Draining Brake System, 12-10-00.)
(4) Remove the seal at the wing root and adjacent access plates and inspection panels.
(See Figure 3, 6-00-00.)
(5) Remove the front and back seats from the airplane.
(6) Expose the spar box and remove the cockpit side trim panel assembly that corresponds with
the wing being removed.
(7) Place the airplane on jacks. (Refer to Jacking, 7-10-00.)
(8) Disconnect the aileron balance and control cables at the turnbuckles that are located within the
fuselage aft of the spar.
NOTE: To facilitate reinstallation of control cables, and fuel and brake lines, mark cable and
line ends in some identifying manner and attach a line where applicable to cables
before drawing them through the fuselage or wing.
(9) 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.
(10) Disconnect the flap from the torque tube by extending the flap to its fullest down position and
removing the bolt and bushing from the bearing at the aft end of the control rod.
CAUTION: TO PREVENT DAMAGE OR CONTAMINATION OF FUEL, HYDRAULIC AND
MISCELLANEOUS LINES, PLACE PROTECTIVE COVER OVER THE LINE
FITTINGS AND ENDS.
(11) Disconnect the fuel line at the fitting located aft of the spar at the wing butt line.
(12) Remove the clamps necessary to release the electrical harness assembly. Disconnect the leads
from the terminal strip assembly by removing the cover, and appropriate nuts and washers.
(13) 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.
(14) If the left wing is being removed, it will be necessary to disconnect the pitot and static tubes at
the elbows located within the cockpit at the wing butt line.
(15) Arrange and put in place a suitable fuselage cradle and supports for both wings.
(16) Remove the wing jacks.
(17) Remove the front and rear wing spar to fuselage attach nuts, washers and bolts. Discard nuts.
NOTE: Note the number and placement of washers at each attach point to facilitate
reinstallation.