Aileron Controls - Piper PA-24 Comanche Service Manual

PIPER COMANCHE SERVICE MANUAL
5-8. Aileron Conttols.
5·9. Removal Of Aileron Connol Cables. (Refer to Figure 5-2.)
a. Remove the rear scats, and scat rails, carpet and floor panel from the left side of the fuselage aft of
the main spar.
b. To remove the right and/or left primary control cable(s) (6 or 3) within the fuselage from station
50.0 to station 126.5, the following procedure may be used:
1.
Remove the front seats and lay back enough floor carpet left of the nose wheel well to enable
the
removal
of the first left floor panel aft of the forward bulkhead.
2. Disconnect the desired cable at the turnbuckle where it connects to the sprocket chain
at
station 50.0.
3.
Remove the cable guard OS) at the pulley cluster just aft of the forward cabin bulkhead.
station 50.5, and at the cluster aft of the mllin spar. station 115.75.
4.
Disconnect the cable from the cable leading into the wing at the strap fitting
(7)
at station
126.5 by removing cotter pin, nut and bolt.
5. Draw the primary cable back through the fuselage.
c. To remove the right and/or left primary control cable from either wing, the following procedure
may be used:
1.
Remove the access plates from the aft underside ofthe wing at stations 72.0, 115.5 and 139.5
and the fairing strip from between the underside of the fuselage and wing. .
2. If tension exists in the cable, rotate the turnbuckle barrel on the aft arm of the aileron
bellcrank at station 139.5 in the wing to slacken the cable. Then, disconnect the cable from the bellcrank
by removing cotter pin, nut, washer and bolt or by disassembling the turnbuckle.
3. Remove the cotter pin cable guard from the cable pulley by reaching through the access hole
at wing station 115.S.
NOTE
The aft end of each bellcrank and the turnbuckle assembly of the
primary cable arc painted red to facilitate reinstallation.
4. In removing the right control cable (6), remove the pulley located at the aft butt end of the
wing by removing the nut, wuher and bolt holding the puDey in its bracket.
5. Remove the cable pulley from the forward side of the rear spar support bulkhead at station
W5.0. The pulley supporting the left control cable may
be
removed by removing the nut, washer and bolt
that holds the pulley in its mounting bracket. The puDey supporting the right control cable may be
removed by first removing the screws securing the mounting bracket to the bottom fuselage skin and rear
spar bulkhead, and then removing the nut, washer and bolt that holds the pulley in the bracket.
6. If not previously disconnected, disconnect the cable from the forward control cable at
fuselage station 126.5 by removing the cotter pin, nut and bolt.
7. Draw the cable through the wing. Use caution when drawing the end of the cable through the
rub block at wing station 78.0.
d. Removal of the aileron balance cable (4) may be accomplished by the following procedure:
1. Ascertain that the access plates are removed from the aft underside of each wing
at
stations
72.0, 115.5 and 139.50. Also, the fairing from between the underside ofthe fuselage and each wing.
2. Remove the floor panel from the right side of the fuselage aft of the main spar.
3. If tension exists in the cable, rotate the turnbuckle barrel on the forward arm of either aileron
bellcrank at station 139.5 in the wing to slacken the cable. Then disconnect the cable from each bellcrank
SURFACE CONTROLS
ISSU ED:
8/18n2
IF24
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