Installation Of Elevator Trim Assembly - Piper Navajo PA-31 Service Manual

PIPER NAVAJO SERVICE MANUAL
Figure 5-8. Methods of Blocking Trim Cables
5-30. INSTALLATION OF ELEVATOR TRIM ASSEMBLY. (Control Pedestal) (Refer to Figure 5-5.)
a.
Ascertain that the cable is evenly wrapped on the trim drum (centered) and blocked to prevent
unwrapping. (Refer to Wrapping the Trim Drum, Paragraph 5-55.)
b. Position the trim screw assembly in the control pedestal and secure.
c.
Draw the cables from the pedestal through the fuselage to the aft section of the fuselage.
d.
If the trim cables (13) from the elevator are installed, connect the cable ends. (If the cables from
the elevator are not installed, pull the cables tight and block them in the fuselage at bulkhead 244.0.)
e.
With the cables installed and connected, install the cable guard pins at stations 103.5, 125.0 and
243.5, and close and secure the rub blocks at stations 162.5, 174.0 and 215.0.
f.
Remove the cable blocks.
g.
Install the trim control wheel on the trim screw shaft at the side of the pedestal and secure with
screw.
h.
Set cable tension with the turnbuckles (12) per Table V-I and check rigging and adjustment per
Paragraphs 5-35 and 5-36.
i.
Install the cover on the face of the control pedestal and the aileron control knob and secure knob
with roll pin.
j. Install access plates, panels and seats.
Reissued: 10/12/79 SURFACE CONTROLS
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