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© 2014 ICS, Blount International Inc. Specications are subject to change
without notice. REV061914 F/N 545067
MAINTENANCE
DRIVE SPROCKET
The drive sprocket (rim sprocket) is a wear item and should be replaced
every two to three diamond chains, or when drive teeth become
pointed.
IMPORTANT
The needle bearing inside the splined adapter should be greased
regularly and should be replaced with each new clutch cup.
A rim sprocket system consists of a clutch cup w/ splined adapter and a rim
sprocket. When the rim sprocket wears out, it is the only part that needs to be
replaced. The clutch cup with splined
adapter is a wear item that needs
replacement after 3 to 5 rim sprockets have
been used.
• Inspect the rim sprocket for wear.
Replace the rim sprocket if the drive
teeth become pointed.
• Check the needle bearing inside the
splined adapter by spinning clutch cup.
Ensure clutch cup spins freely and
without excessive play.
• The needle bearing must be greased regularly, use high quality water-resistant
bearing grease.
DRIVE SPROCKET REMOVAL
• Remove the side cover, guidebar and diamond chain.
• Using a screwdriver, carefully pry the spring clip
from the half collars.
TIP: Cup your hand over the end of shaft to
prevent the spring clip from being ejected.
CAUTION: Wear safety glasses.
• Remove the half collars and retaining washer
from the shaft.
• Slide the drive sprocket off of the splined adapter.
Clutch Cup
Splined Adaper
Drive Sprocket
Retaining Washer
Half Collar
Spring Clip
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