ICS 680GC, Operator'S Manual

Page: 21 / 28

F/N 525746 Jan 09 © 2009 ICS, Blount Inc.
TITLE 680GC OPERATOR’S MANUAL
21
MAINTENANCE
DRIVE SPROCKET INSTALLATION
• Slide the rim sprocket onto the splined adapter, either side out.
• Apply a liberal amount of grease to the needle bearing.
• Place the thin metal washer onto drive shaft. Slide the needle
bearing and clutch cup w/rim sprocket onto shaft (Figure 2).
• Install the clutch by turning it counter clockwise on the drive
shaft and firmly tighten. Replace the clutch slurry shield.
Installation of drive sprocket assembly is now complete.
Figure 2
DRIVE SPROCKET REMOVAL
• Remove the side cover, guide bar, diamond chain, and clutch
slurry shield.
• Remove the spark plug and insert the piston stop (supplied
with each saw) into the spark plug hole. Pull the starter cord
slowly until the piston stops. (Figure 1) Use a 19mm wrench to
turn the clutch clockwise and remove.
• Slide the clutch cup/drive sprocket assembly off the shaft.
Remove the needle bearing and inspect for heavy wear or
damage.
Figure 1