Cable Maintneance; Cable Fittings - Piper PA-32R-301 SARATOGA SP Maintenance Manual

FLIGHT CONTROLS (cont.)
(3) Control Cable Inspection
(d) Corrosion
Check all exposed sections of cable for corrosion after a
cleaning and/or metal-brightening operation has been
accomplished in that area.
(4) Cable Maintenance
Frequent inspections and preservation measures such as rust prevention treatments for bare cable
areas will help to extend cable service life. Where cables pass through fairleads, pressure seals, or
over pulleys, remove accumulated heavy coatings of corrosion prevention compound. Provide
corrosion protection for these cable sections by lubricating with a light coat of graphite grease or
general purpose, low-temperature oil.
Avoid use of vapor degreasing, steam cleaning, methylethylke-
tone (MEK) or other solvents to remove corrosion-preventative
compounds, as these methods will also remove cable internal
lubricant.

(5) Cable Fittings

Check swaged terminal reference marks for an indication of cable slippage within fitting. Inspect
fitting assembly for distortion and/or broken strands at the terminal. Assure that all bearings and
swivel fittings (bolted or pinned) pivot freely to prevent binding and subsequent failure. Check
turnbuckles for proper thread exposure and broken or missing safety wires/clips.
(6) Pulleys
Inspect pulleys for roughness, sharp edges, and presence of foreign material embedded in the
grooves. Examine pulley bearings to assure proper lubrication, smooth rotation, freedom from flat
spots, dirt, and paint spray. Periodically rotate pulleys, which turn through a small arc, to provide
a new bearing surface for the cable. Maintain pulley alignment to prevent the cable from riding on
flanges and chafing against guards, covers, or adjacent structure. Check all pulley brackets and
guards for damage, alignment, and security.
(a) Pulley Wear Patterns
Various cable system malfunctions may be detected by analyzing pulley conditions. These
include such discrepancies as too much tension, misalignment, pulley bearing problems, and
size mismatches between cables and pulleys. Examples of these conditions are shown in
Figure 5.
PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
– NOTE –
– CAUTION –
2B4
27-00-00
Page 27-6
Reissued: July 1, 1993