Kenworth T410, Driver'S Handbook Manual

Page: 322 / 418

Page 296 CAT: 8612 November 2019
PREVENTIVE MAINTENANCE
MAGNETIC DRAIN PLUGS
Engines, Gear Boxes and Differentials that have metal on metal contact
create friction wear as the metal surfaces wear, giving off a fine greyish
metal dust that contaminates the oil. All the contaminants cannot be
removed by the oil filter alone, an oil filter is only capable of catching
particles over 35 microns as these particles are extremely fine
Magnetic drain plugs on Engines, Gear Boxes and Differentials perform
the vital function of trapping the small metallic particles that circulate in
the lubricant.
These abrasive particles can cause rapid wear and premature failure of engine
components, gears and bearings. The oil drain plug is a good place to catch
these particles and should be cleaned off every time an oil change is performed.
The magnets can lose their effectiveness as material collects on the poles
and ‘shorts’ the magnetic field. Check the effectivness of your drain plugs,
and change plugs before this occurs.
It may be necessary to change plugs one or more times between
complete lubrication intervals, particularly during the initial break-in
period. We recommend that spare plugs be kept on hand for replacement.
Replacement plugs are listed in the Dealer Master Parts Catalogue.
Removed for Ready for
Inspection & cleaning Installation
To facilitate the cleaning of a magnetic drain plug, a piece of key stock, or
any other convenient steel slug, may be used to ‘short’ the magnetic field.