Cable Rigging Tension Vs Temperature Table; Control Surface Travel And Cable Tension - Piper Navajo Chieftain PA-31-350 Service Manual

NAVAJO CHIEFTAIN SERVICE MANUAL
g. Cable tension should be taken with the appropriate surface control in its neutral position and
tension specified corrected to ambient temperature in the area where tension is being checked. (Refer to Table
V-I.)
NOTE
Whenever the elevator control system is serviced, a friction check of
the system must be accomplished in accordance with instructions
given in Paragraph 5-29.
h. Ascertain that all cable guard pins are installed in their proper location, and are not interfering with
control cable travel.
i. When installing rod end jam nuts, refer to Figure 5-2 for proper installation method.
i. Verify that all control systems function properly and all control surfaces move in their proper
direction in coordination with the control wheel and rudder pedal movements.
TABLE V-I. CABLE RIGGING TENSION VS. TEMPERATURE
AMBIENT TEMPERATURE
30° F
40° F
50° F 60° F 70 F
80° F 90 F
100 F
AILERON CABLE TENSION
21 LBS 23 LBS 25 LBS 28 LBS 31 LBS 35 LBS 39 LBS 45 LBS
RUDDER CABLE TENSION
18 LBS 19 LBS 20 LBS 22 LBS 23 LBS 25 LBS 27 LBS 31 LBS
ELEVATOR CABLE TENSION 14 LBS 15 LBS 16 LBS 17 LBS 18 LBS 20 LBS 22 LBS 25 LBS
NOTES:
1. TOLERANCE + 2 LBS
2. AIRCRAFT SHOULD BE ALLOWED TO STABILIZE IN A CONSTANT TEMPERATURE
FOR
A MINIMUM OF TWO HOURS PRIOR TO CHECKING AND ADJUSTING TENSIONS.
TABLE V-II. CONTROL SURFACE TRAVEL AND CABLE TENSION
Cable Tensions
NOTE
Refer to Table
V-I for Tension
Vs. Temp. data.
Aileron
Aileron Trim Tab
Elevator
Elevator Trim Tab
Rudder
Rudder Trim Tab
35 Ibs
±
2 Ibs
14 Ibs ± 2 Ibs
20 Ibs
±
2 lbs
14 lbs ± 2 Ibs
25 lbs 2 lbs
14 lbs t 2 lbs
NOTE
CABLE TENSIONS GIVEN APPLY ONLY
TO AIRPLANES WITHOUT AUTOPILOT
BRIDLE CABLES ATTACHED. REFER TO
APPROPRIATE
AUTOPILOT SERVICE
MANUAL FOR PROPER CABLE TENSIONS
WHEN ATTACHING BRIDLE CABLES.
Revised: 3/5/84
SURFACE CONTROLS
1H19