PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 7
Nov 30/06
1I13
12-20-00
9. Lubrication
Proper lubrication procedures are valuable for prolonging the service life of the airplane and as a means
of reducing the frequency of extensive and expensive repairs. The periodic application of recommended
lubricants to their relevant bearing surfaces, combined with cleanliness, as detailed in the following
paragraphs, ensures maximum efficiency and utmost service of all moving parts. Lubrication instruction
regarding the locations, time intervals, and type of lubricants used are found in proper lubrication charts.
A. To ensure the best possible results from the application of lubricants, observe the following
precautions:
NOTE: If the airplane is inactive for long periods of time, it should be lubricated in
accordance with the Lubrication Charts every 90 days.
(1) Use only recommended lubricants. Where general purpose lubricating oil is specified, but
unavailable, clean reciprocating engine oil may be used as a satisfactory substitute.
(2) Check components for evidence of excessive wear and replace as necessary.
(3) Remove all excess lubricants from components to prevent collecting dirt and sand in quantities
capable of causing excessive wear or damage to bearing surfaces.
B. Application of Grease
When lubricating bearings and bearings surfaces with a grease gun, ensure gun is filled with new,
clean grease of the grade specified for the particular application before applying lubricant to grease
fittings.
(1) If a reservoir is not provided around a bearing, apply lubricant sparingly and wipe off excess.
(2) Remove wheel bearings from the wheel hub and clean thoroughly with a suitable solvent.
When packing with grease, be sure the lubricant enters the space between the rollers in the
retainer ring. Do not pack the grease into the wheel hub.
(3) Use extra care when greasing propeller hub to avoid blowing clamp gaskets. Remove one
grease fitting and apply grease to the other fitting until fresh grease appears at the hole of the
removed fitting. Uneven greasing effects propeller balance.
C. Application of Oil
If specific lubrication instructions for certain components are not available, observe the following
precautions:
CAUTION: AFTER THOROUGHLY WASHING AIRPLANE, ENSURE LANDING GEAR, FLIGHT
CONTROLS, FLAP TRACKS, ELEVATOR TRIM SCREW, AND ENGINE
COMPARTMENT ARE STILL PROPERLY LUBRICATED.
(1) Apply oil sparingly. Never apply more than enough to coat the bearing surfaces.
(2) Do not oil control cables.
D. Lubrication Charts (See Charts 1 thru 3 and Figures 4 thru 8.)
(PIR-35121, Rev. E.)
(PIR-PPS65102-134, Rev. New.)
The lubrication charts consist of individual illustrations for the various aircraft systems. Each
component to be lubricated is indicated by a number, the type of lubricant and the frequency of
application. Special instructions, Cautions, and Notes are listed at the beginning of the lubrication
charts, with each applicable component illustration, and are consistent throughout.
CA
UTION: MIL-PRF-23827G AND MIL-G-81322, CONTAIN CHEMICALS WHICH MAY BE
HARMFUL TO PAINTED SURFACES.
CA
UTION: DRY LUBRICANT (I.E. - PTFE BASED MS-122DF) WILL ATTACK ANY ACRYLIC
BASED PLASTIC (LUCITE), POLYCARBONATES (LEXAN), POLYSTYRENE AND
ITS COPOLYMERS (ABS), AND CELLULOSE ACETATE.
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