30
Carlton
®
Maintenance and Safety Manual
Guide Bar Components and Maintenance
Lubrication
Use good quality guide bar and saw chain
oil.
Turn nose sprocket while pumping grease
until the whole sprocket has new grease.
Do not push dirt into the hole.
Never
use waste engine oil to lubricate
your guide bar and saw chain; old engine
oil contains grit and acids that can
harm the chain saw oiler and it will
increase guide bar and saw chain wear.
Proper lubrication and maintenance is
essential to avoid premature saw chain
wear. Wear on the saw chain’s drive links
and rivets (see illustration) can be avoided
by proper saw chain and guide bar
maintenance and lubrication.
When operating properly, the chain saw
should pump enough oil to have some
sling off the end of the guide bar. This
flushes away grit that could
ruin the bearings of the saw
chain and accelerate guide
bar rail wear. The remaining
oil will lubricate the guide
bar and saw chain. Please
see page 16 to review saw
chain tensioning details.
Guide bar problems
Guide bars can fail from poor saw chain maintenance, poor saw
chain tension, lack of lubrication on the rails and/or at the tip,
or from abuse such as using a guide bar as a pry, a lever, or
getting pinched in the cut can cause guide bar failures.
Wear
Wear
Rivet flange
bearing
New
New
Hub