Replacement Part List

7. Adjust the chain tension by pulling the guide bar + chain
forward, and make sure the chain is fully stretched. Using
your other hand, Fit the chain/sprocket end cover back on
by inserting the small tab located on the right bottom of
the end cover into the hole on the machine body. Turn the
end cover + chain tensioning knob clockwise until you nd
the right chain tension (Figs. 23 – 24).
NOTE: The chain is correctly tensioned when there is no
sag on the underside of the guide bar; the chain is snug,
but can be rotated by hand without binding.
NOTE: If the chain is too tight, it will not rotate. Loosen
the end cover + chain tensioning knob slightly by 1/4 turn
counterclockwise. Ensure that the chain can be rotated
by hand without binding. Do not loosen the end cover +
chain tensioning knob too much otherwise the chain + bar
assembly will come loose.
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. 25). 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
ats on the drive links hang out of the bar groove (Fig. 25).
NOTE: A new chain tends to stretch. Check the chain tension
frequently and re-tension as needed.
Chain Sharpening
mWARNING! To ensure that the saw works safely and
eciently, 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
bar requires specic 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 dicult;
• 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.
Fig. 22
Guide bar
Sprocket Stud bolt
Fig. 23
Insert the tab into
the hole
Fig. 24
End cover + chain
tensioning knob
Pull to stretch
Fig. 25
Properly Adjusted Warm Chain
Approximately .050 in. (1.25 mm)
Flats are
visible here
Flats are not
visible here
Chain Needs Tensioning
17