Piper Navajo PA-31 Service Manual page 206

PIPER NAVAJO SERVICE MANUAL
184
183
I
_
1. STOP BOLT
2.
STOP BLOCK
3. RIGGING TOOL
4. "C" CLAMP
5. BELLCRANK
6.
WOOD BLOCK
1. AILERON
2. RIGGING TOOL
3.
WING
Figure
5-3. Installation
of Bellcrank
Rigging Tool
Figure 5-4.
Installation
of Aileron
Rigging Tool
2. With the bellcrank
in neutral and the forward edge of tool and spacer contacting
the wing.
the trailing edge of the aileron should make contact with the aft end of the tool.
3
Should the three points not contact, loosen the jam nuts (52 and 58) of the control
rod ends
(51 and 57) and rotate the rod (25) until the three contact points touch the skin surfaces. Tighten
the rod end
lock nuts.
c. With the bellcrank
in neutral position. adjust cable tension as given in Table V-I to maintain
neutral-center
alignment
of control wheels. Remove the floor panel to the left of the control
pedestal
Alternately
adjust the primary and balance cable turnbuckles
(2) at the bellcranks with the turnbuckles (17)
within the fuselage at station
100.0 Cable tension should be taken at the non-ridged primary control cable
Safety turnbuckles.
NOTE
Cable tension should be taken on one of the non-rigid cables only
Cable
tensions are
checked
without
autopilot
bridle cables
connected.
d. To adjust the interconnecting cables between the aileron and rudder cables. first ascertain
that cable
tension has been set for both the aileron and rudder cables. Ascertain that the aileron
and ruddercontrols
and
surfaces are neutral, then remove the access panel to the aft interior section of the
fuselage and adjust the
interconnecting cable turnbuckles
(26) at station 288.0 so that the springs (28) will extend .060 of an inch.
e. Place a bubble protractor
on the inboard section of the aileron and establish neutral or zero on
the protractor
Remove the tools holding the aileron bellcranks
in neutral, replace nuts and safety. Adjust
the bellcrank
stop bolts (59) to the specific aileron travel from neutral as given in Table V-I. Stops
of both
bellcranks
should contact their stop blocks at the same time and before the control wheel contacts
its stops.
SURFACE CONTROLS
Revised: 3/2/84
1114