Lubrication Instructions; Application Of Oil; Application Of Grease - Piper PA-44-180 SEMINOLE Maintenance Manual

LUBRICATION INSTRUCTIONS.

Proper lubrication procedures are of immeasurable value both as a means of 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, as detailed in the following paragraphs,
together with the observance of cleanliness will insure the maximum efficiency and utmost service of all moving
parts. Lubrication instruction regarding the locations, time intervals, and type of lubricants used may be found in
the Lubrication Chart. To insure the best possible results from the application of lubricants, the following
precautions should be observed:
1. Use recommended lubricants. Where general purpose lubricating oil is specified, but unavailable, clean
engine oil may be used as a satisfactory substitute.
2. Check the components to be lubricated for evidence of excessive wear and replace them as necessary.
3. Remove all excess lubricants from components in order to prevent the collection of dirt and sand in abrasive
quantities capable of causing excessive wear or damage to bearing surfaces.
If the airplane is inactive for long periods of time, it should be lubricated in
accordance with Lubrication Chart every 90 days.

APPLICATION OF OIL.

Whenever specific instructions for lubrication of mechanisms requiring lubrication are not available,
observe the following precautions:
1. Apply oil sparingly, never more than enough to coat the bearing surfaces.
2. Since the control cables are sufficiently coated by the manufacturer, additional protection for the prevention
of corrosion is unnecessary.
BE CAREFUL NOT TO ADD TOO MUCH OIL, BECAUSE THE EXCESS
WILL BE THROWN OFF DURING OPERATION AND WILL CAUSE
PITTING AND BURNING OF THE MAGNETO POINTS.
3. Squeeze the magneto cam follower felts at regular inspection periods. If oil appears on fingers, do not add
oil. If the felt is dry, moisten with light oil.

APPLICATION OF GREASE.

Care must be taken when lubricating bearings and bearing surfaces with a grease gun, to insure that gun is
filled with new clean grease of the grade specified for the particular application before applying lubrication to the
grease fittings.
1. Where a reservoir is not provided around a bearing. apply the lubricant sparingly and wipe off any excess.
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
— Note —
— CAUTION —
1D13
1 2 - 2 9 - 0 2
Page 12-13
Revised: May 15, 1989