Piper PA-24 Comanche, Service Manual

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PIPER COMANCHE SERVICE MANUAL
04/01/09 IV - STRUCTURES
1E13
4-21.
Installation.
4-22.
Installation Of Wing Assembly.
4-23.
Installation Of Wing. (Refer to Figure 4-2.)
NOTE: When installing a “replacement” wing, a Stall Warning Flight Test is required upon completion
of wing installation. Contact Piper factory Technical Support through your Piper Dealer for
further instruction.
A. Slide the wing panels into the fuselage until the main wing spars butt against each other at the spar
center attachment fitting. Set the wing panels on trestles.
NOTE: The flap control cables for the PA-24-400 are to be inserted into the wing as the wings are
being installed on the fuselage.
B. Attach the wing panel rear spar to the attachment fitting on the side of the fuselage. Maximum
permissible gap between face of spar and fuselage attachment is .010 (before tightening nut).
C. Attach the wing panel front spar to its attachment fitting. Insert the necessary spacer shims washers.
D. Attach the lower spar attachment strap and the spar support tube assembly to the bottom spar
capstrip. No gap is permissible between spar splice plates and capstrip.
E. Attach the upper spar attachment strap and the seat support to the top spar capstrip with bolts.
F. Attach rear of spar center support tube assembly to the attachment bracket with a bolt.
G. Install upper rear and front spar attachment straps and the spar support tube to the spar web at the
jointure of the front wing spars.
H. Attach the upper spar cap bracket to outer sides of the fuselage frame and install the bolt.
I. Attach the lower spar cap to outer sides of fuselage frame and install bolts.
J. Tighten all attachment bolts. Torque bolts securing spar splice plates to capstrip to 13 to 24 foot
pounds and all other bolts use standard torque values.
K From fuselage assembly, connect airspeed, fuel, and brake lines and main gear control cables to
wing panels.
L. Connect aileron control cables.
M. Connect aileron balance cables to aileron bellcranks at outboard section of wing panels.
N. Connect the flap cables and safety.
4-24.
Installation Of Flap (Manually Operated).
CAUTION: FLAP SKINS MUST BE REPLACED IF THEY SUSTAIN DAMAGE OR EXHIBIT
CRACKS.
A. Position flap in place, lubricate (See Lubrication Chart, Section II) and install hinge bolts.
B. Move the flap through its full travel to ascertain that there is no binding. If there is binding, inspect
flap rollers and tracks for dirt, foreign material, paint or damage. Clean, lubricate (if applicable) or
replace as necessary.
C. Connect the flap control rod and bellcrank return spring.
D. Check flap adjustments. (Refer to Rigging Of Flap, Section V.)
E. Install access plate and wheel well splash pan.