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

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PIPER CHEROKEE SERVICE MANUAL
01/31/08 V - SURFACE CONTROLS
2C11
7. Remove the cotter pin cable guard from the flap cable pulley (24) located inside the floor
tunnel just ahead of the spar housing.
8. Remove the cable rub blocks located in the floor opening on the aft side of the spar housing by
removing the attaching screws.
9. Disconnect the cable turnbuckle (25) at the flap handle by removing cotter pin, nut and bolt
(26). Check clevis bolt (26) for wear. Replace bolt if any wear is evident.
c. Remove the flap handle (29)and bracket (28) by disconnecting the cable turnbuckle from the handle
and removing the bolts securing the bracket to the floor tunnel.
5-43. INSTALLATION OF WING FLAP CONTROLS. (Refer to Figure 5-17.)
a. The flap torque tube assembly may be installed by the following procedure:
1. Install the chain sprocket (17) with chain (20 and 30) on the torque tube (14) and secure with
bolts, washers and nuts (18).
2. Slide the tube stop fittings (13) on their respective ends of the torque tube.
3. Ascertain that one bearing block fitting (7) is installed between its attachment brackets (6).
4. Slide the other bearing block over its respective end of the torque tube.
5. Position the torque tube by placing the end with the bearing block on it between the mounting
bracket and sliding the other end into the previously attached bearing block.
6. Position the remaining bearing block and secure with bolts, washers and nuts (5).
7. Push the torque tube cranks (arms) (11) on each end of the torque tube and slide the stop fitting
(13) in place. Align the bolt hole of the crank and stop fitting with the holes in the torque tube
and install bolts. The holes in the stop fitting are elongated to allow the stop fitting to be
pushed against the bearing blocks (7) thus allowing no side play of the assembly. Tighten the
bolt assemblies (10) on the stop fittings.
8. Install the tube support blocks (16 and 31) on their support brackets (19) and secure with bolts
(15).
9. Connect the flap return spring (32) to the return chain (30) and/or at the spar housing.
10. Connect the control cable end to the tension chain (20) and secure with bushing, clevis bolt,
nut and cotter pin.
11. Pull the flap handle full back and connect the tension spring (22). Release the flap handle to
the forward position.
12. Connect the flap control tube (4) to the flap and/or torque tube crank (11) and secure. The bolt
(12) and bushing that connects the control tube to the crank is installed through a hole in the
side of the fuselage located over the torque tube.
b. To install the flap handle (29) with bracket (28), place the assembly on the floor tunnel and secure
with bolts.