Piper Comanche PA-24 Service Manual page 259

5-7. Installation Of Control Column Assembly. (Refer to Figure 5-5.)
A. When installing the control column assembly, first install the components of the square tube
assembly. If the nylon rub blocks (23) have been removed, install and tighten them on their
attaching screws and secure in place with safety wire. Washers (25), P/N 81342-78 may be installed
as required under the nylon rub blocks (23) to remove play between the square tube (3) and control
tube (2) without restricting control tube movement over square tube.
B. If both the sprocket assembly and roller assembly have been removed, the roller assembly may be
replaced over the forward end of the square tube shaft. Adjust with spacer washer and rotate the
eccentric bushing (37) to maintain 0.003 of an inch clearance between one roller (15) and the tube
(3) with the opposite roller in contact with the tube. Adjust clearance of the other set of rollers.
C. To avoid unnecessary disassembly of control tube when checking end play of the collars (21 and
22) and cable attachment fitting (20), pre-assemble to obtain clearances required between the cable
attachment fitting and the fore and aft collars. Pre-assemble as follows:
1. Slide the aft collar (22), cable attachment fitting (20), forward collar (21), and roller assembly
onto the control tube (2).
2. Temporarily insert forward collar and roller assembly attaching bolts (17).
3. Move the aft collar until the collars and fitting contact, then withdraw the aft collar until the
first of its staggered holes align with the holes in the control tube.
4. Install bolts (17) in aft collar.
5. Check clearances between either collar and cable attachment fitting. Note the required seal
washers (18) that will be equal on each side of the cable attachment fitting to maintain a
clearance of 0.003 to 0.013 of an inch.
6. Draw line from roller bearing housing across collars and cable attachment fitting to control
tube to mark their relative positions.
7. Remove the bolts, roller assembly, collars and cable fitting from the control tube and continue
with step D.
04/01/09
PIPER COMANCHE SERVICE MANUAL
1F23
V - SURFACE CONTROLS