Piper Navajo PA-31 Service Manual page 269

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PIPER NAVAJO SERVICE MANUAL
TABLE V-II. TROUBLESHOOTING CHART (CONTROL SURFACES) (cont.)
Trouble
I
Cause
Remedy
ELEVATOR TRIM CONTROL SYSTEM
Lost motion between
trim control wheel
and trim tab.
Cable tension too low.
Adjust in accordance
with Paragraph
5-35.
Cables not in place on
pulleys.
Broken pulley.
Linkage loose or worn.
Install cables according
to Paragraph 5-30,
5-32 and 5-35.
Replace pulley.
Check linkage and tight -
en or replace.
Trim control wheel
moves with excessive
resistance.
System not lubricated
properly.
Cable tension too high.
Pulleys binding or rub-
bing.
Cables not in place on
pulleys.
Trim tab hinge binding.
Cables crossed
or
routed incorrectly.
Lubricate system.
Adjust in accordance
with Paragraph 5-35.
Replace binding pulleys.
Provide clearance
be-
tween pulleys and
brackets.
Refer to Paragraphs
5-30, 5-32 and 5-35.
Lubricate hinge.
If
necessary,
replace.
Check routing of control
cables.
SURFACE CONTROLS
Reissued: 10/12/79
1L5

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