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

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PIPER CHEROKEE SERVICE MANUAL
01/31/08 V - SURFACE CONTROLS
2B15
3. Install the forward portion of the cable as given in paragraph 5-20.
4. Wrap the trim cable around the barrel (21) and idler pulley (18). To do this, hold the barrel
next to the aft end of the support braces and wrap, bringing the end of the long length (The
long length should be the left end of the cable.) aft to the left side of the trim barrel, around the
bottom groove of the idler pulley, then continuing to wrap in this direction until all grooves are
filled.
5. Install the trim barrel (21) in the bushing between the horizontal and diagonal ribs, and then
attach the ribs, securing with bolts, washers and nuts. Tighten bolts where the ribs attach to the
aft bulkhead.
6. Install the thrust washer, washer and snap ring on lower end of the barrel.
7. Install the trim screw in the barrel and secure each end with a cotter pin through the screw.
8. Draw the cable end forward and connect it with its mating end within the fuselage.
9. Ascertain that the cable is seated in the groove of each pulley and install the cotter pin cable
guards at the pulleys located within the fuselage at station 228.30 and at the idler pulley at the
aft fuselage bulkhead.
10. Set cable tension and check rigging and adjustment per paragraph 5-17. Check safety of
turnbuckle.
11. The trim indicator cable may be installed by attaching one end to the lower end of the trim
screw (Refer to Figure 5-8 for correct location.) and looping the cable around the pulley below
the trim screw. Install the cotter pin cable guard at the pulley. Attach other end of the cable to
the indicator wire, and at the same time make adjustments given in paragraph 23.
12. Install tail cone fairing and secure with screws.
13. Install access panel to the aft section of the fuselage.
c. PA-28-140, Serial Nos. 28-20657 and up; PA-28-150,-160,-180, Serial Nos. 28-2172 to 28-9377
incl. and PA-28-235, Serial Nos. 28-10606 to 28-10719 incl.
1. Ascertain that the trim barrel bushings are lubricated and installed in the rib plate and clip.
2. Attach the horizontal (20) and diagonal support ribs to the aft bulkhead of the fuselage with
bolts, washers and nuts. Start nuts only a few threads so as to allow ribs to hang loose. Do not
connect the ribs at this time.
3. Wrap the trim barrel (21). To do this, first lay the center (as measured equally from each end to
the center of the cable) of the trim cable in the slot of the barrel. Bring the upper cable through
the diagonal slot in the flange at the upper end of the barrel and wrap down in a
counterclockwise direction. Bring the lower cable through the diagonal slot in the lower end of
the barrel and wrap up in a clockwise direction. Wrap the cable as evenly as possible to obtain
23 wraps on the barrel as viewed from the side opposite the slot and with the cables extending
out from the slotted side.
4. Block both cables by clamping them between two pieces of wood laid next to the wraps to
prevent them from unwrapping. (Refer to Figure 5-9.)
5. Install the barrel in the bushings between the horizontal and diagonal ribs, and then attach rib
securing with bolts, washers and nuts. Tighten bolts where the ribs attach to the aft bulkhead.
6. Install the thrust washer, washer and snap ring on the lower end of the barrel.
7. Install the trim screw (11) in the barrel and secure each end with a cotter pin through the screw.