Piper Arrow IV, Maintenance Manual

Page: 244 / 752

STANDARD PROCEDURES.
The following tips may be helpful in the removal, installation and rigging of the various assemblies:
1. It is recommended, though not always necessary to level and place the airplane on jacks during rigging
and adjustment.
2. Remove turnbuckle barrels from cable ends before withdrawing the cables through the structures.
3. Tie a cord to the cable end before withdrawing the cable through the structures to facilitate
reinstallation of cable.
4. Turnbuckle stations are given at their neutral positions.
5. When referring to marking cable end, etc., before disconnecting a felt marking pen may be used.
6. Assemble and adjust the turnbuckles so that each terminal is screwed an approximately equal distance
into the barrel. Do not turn the terminals in such a manner that will put a permanent “twist” into the cables.
7. Cable tensions should be taken with the appropriate control surface in its neutral position.
8. After completion of each adjustment, check the turnbuckles to be sure not more than three terminal
threads are visible outside the barrel. Install the locking clips, and check for proper installation by trying to
remove the clips using fingers only. Both locking clips may be installed in opposite holes. Locking clips which
have been installed and removed must be scrapped and not reused. Turnbuckles may be safetied in accordance
with Advisory Circular 43.13-1A Chapter 4, Section 2.
9. When push rods or rod ends are provided with an inspection hole, the screw must be screwed in far
enough to pass the inspection hole. This can be determined visually or by feel, inserting a piece of wire into the
inspection hole. If no hole is provided, there must be a minimum of .375 of an inch thread engagement.
10. When installing rod end jam nuts, refer to Figure 27-1 for proper installation method.
11. After completion of adjustments, each jam nut must be tightened securely.
—NOTE—
Cable rigging tensions specified must be corrected to ambient
temperature in the area where the tension is being checked, using
Chart 2702.
CONTROL COLUMN ASSEMBLY.
REMOVAL OF CONTROL COLUMN ASSEMBLY. (Refer to Figure 27-2.)
1. To remove either control wheel with tube, the following procedure may be used:
A. Separate the control wheel tube from the flexible joint that is located on either side of the tee bar
assembly by removing the nut, washer and bolt. Pull the tube from the flexible joint.
B. If removing the left control tube, slide the stop from the tube.
C. Should wires for the various Autopilot systems be installed in the control tube, disconnect them at
the quick disconnect terminals behind the instrument panel. Draw the wires back into the tube and
out through the forward end of the tube.
D. Remove the control wheel assembly from the instrument panel.
27-05-01
Page 27-09
December 1, 1978
1K4
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL