Chain Tension; Chain Sharpening - SNOWJOE SUNJOE 24V-10CS Manuel D'utilisation

Fig. 22
Sprocket/chain
end cover
9. Lift up the guide bar tip slightly. Use the other end
of the hex key wrench/blade screwdriver to turn the
chain adjusting screw clockwise to tighten, turn it
counterclockwise to loosen (Fig. 6).
NOTE: A new chain tends to stretch; check the chain
tension frequently, and adjust tension as required.

Chain Tension

Check the chain tension before using the saw when the chain
is cold. The correct tension of a cold chain is when there is no
slack on the underside of the guide bar; the chain is snug, but
you can rotate it by hand without binding.
During normal saw operation, the temperature of the chain
will increase. The drive links of a correctly tensioned warm
chain will hang approximately 0.050 in. (1.25 mm) out of the
bar groove (Fig. 23). Be aware that a chain tensioned while
warm, may be too tight upon cooling. Check the "cold tension"
before next use. The chain must be re-tensioned whenever the
flats on the drive links hang out of the bar groove (Fig. 23).
Fig. 23
Properly Adjusted Warm Chain
Flats are not
visible here
Approximately .050 in. (1.25 mm)
Chain Needs Tensioning
Flats are
visible here

Chain Sharpening

m
WARNING!
To ensure that the saw works safely and
efficiently, it is essential that the cutting components are
well-sharpened. It is highly recommended to replace the
chain once it loses its ability to cut cleanly and safely.
It is possible, however, to sharpen the existing chain if the
sharpening is carefully performed. Any work on the chain and
End cover nuts
Pulling
forward
bar requires specific experience and special tools. For safety
purposes, we recommend you contact an authorized
Snow Joe + Sun Joe dealer or call the Snow Joe
® ®
Sun Joe customer service center at 1-866-SNOWJOE
®
(1-866-766-9563).
Sharpening is necessary when:
• The sawdust looks like dust;
• Cutting becomes more difficult;
• The cut is not straight;
• Vibrations increase.
An authorized service center will sharpen the chain using the
right tools to ensure minimum removal of material and even
sharpness on all the cutting edges.
If you sharpen the chain by yourself, it's recommended to
purchase Sun Joe 24V-CSSHRP-LTE chain saw sharpener,
®
which can be powered by the same 24V iON+ battery with this
cordless chain saw. Visit sunjoe.com or call the Snow Joe
Sun Joe customer service center at 1-866-SNOWJOE
®
(1-866-766-9563) to order.
Otherwise, use special round-section files with the right diameter
depending on the type of chain (see "Chain Maintenance Table"
pg. 23). You need a certain amount of skill and experience to
avoid damaging the cutting edges.
Sharpen the chain as follows (Fig. 24):
Fig. 24
Cutting edge
• Secure the bar firmly, with the chain mounted, in a
suitable vise.
• Tighten the chain if it is loose.
• Mount the file in the guide and then insert it in the tooth at
a constant angle from the cutting edge.
18
+
®
+
®
Inspection tool
Depth
limiter
tooth
Depth limiter tooth