613GC OPERATOR’S MANUAL
MAINTENANCE
CHAIN TENSIONER
IMPORTANT
The chain tensioner (Figure 1) can become clogged with concrete slurry during cutting. After each use thoroughly flush the chain tensioner with water. Then apply a liberal amount of grease.
Most Common Causes of Tensioner Damage:
•Side cover nuts are not tight enough. Side cover nuts should be torqued to 20
•Chain tensioning is attempted without loosening the side cover nuts.
•Concrete debris in tensioner pocket.
Chain
Tensioner
Figure 1
DRIVE SPROCKET |
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| The drive sprocket (rim sprocket) is a wear item and should be | |
IMPORTANT | ||
replaced every | ||
| The needle bearing inside the splined adapter should be greased | |
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IMPORTANT | ||
regularly and should be replaced with each new clutch cup. |
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| Clutch | Splined | Rim |
A rim sprocket system (Figure 2) consists of a clutch cup w/ | Cup | Adapter | Sprocket | |
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splined adapter and a rim sprocket. When the rim sprocket |
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wears out, it is the only part that needs to be replaced. The |
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clutch cup w/ splined adapter is a wear item that needs |
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replacement after 3 to 5 rim sprockets have been used. |
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• Inspect the rim the rim sprocket for wear. Replace the rim |
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sprocket if the drive teeth become pointed. |
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• Check the drive sprocket bearing by spinning clutch cup. |
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Replace the bearing if it is worn out. |
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• The needle bearing on the drive shaft must be greased |
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regularly, use high quality | Figure 2 |
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