Replacement Part List
17
•  If there is excessive dirt or resin build-up, disassemble the 
chain and place it in a container with a suitable cleanser. 
Then rinse it with clean water and treat it with a suitable 
anticorrosive spray before reassembling it on the machine.
•  Fit the cutting bar sheath onto the bar before storing.
mWARNING! Let the motor cool completely before 
storing the chain saw in any enclosure.
To reduce re hazards, clean the machine thoroughly to 
remove sawdust, branches, leaves, or excess grease. Never 
leave containers with cut debris inside the storage area.
Maintenance
Please 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) for all maintenance 
operations not foreseen in this manual. Any operation 
performed in an unauthorized service center or by unqualied 
personnel will completely invalidate the warranty.
mWARNING! For your safety and that of others:
•  Correct maintenance is essential to maintain the original 
eciency and safety of the machine over time.
•  Keep all nuts, bolts, and screws tight to be sure the 
equipment is in safe working condition.
•  Never use the machine with worn or damaged parts. 
Damaged parts are to be replaced and never repaired.
•  Only use original Snow Joe
®
 + Sun Joe
®
 replacement 
parts. Parts that are not of the same quality can seriously 
damage the equipment, compromise safety, and invalidate 
the warranty.
mWARNING! Always remove the battery before 
performing any adjustments, maintenance, or repairs to your 
cordless chain saw.
•  Use protective gloves when handling the bar and chain.
•  Keep the bar protection device on, except when 
intervening directly on the bar or the chain.
•  Never dispose of oils or other polluting materials in 
unauthorized places.
Motor Cooling
To avoid overheating and damage to the motor, always keep 
the cooling air vents clean and free of sawdust and debris.
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. 21). 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. 21).
NOTE: A new chain tends to stretch. Check the chain tension 
frequently and re-tension as needed.
Chain Brake
Regularly check the eciency of the chain brake.
Nuts and Screws
Periodically check that all the nuts and screws are securely 
tightened and the hand grips are tightly fastened.
Chain Sharpening
mWARNING! To ensure that the chain saw works safely 
and eciently, 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 specic 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 dicult.
•  The cut is not straight.
•  Vibrations increase.
Fig. 21
Properly Adjusted Warm Chain
Approximately .050 in. (1.25 mm)
Flats are 
visible here
Flats are not 
visible here
Chain Needs Tensioning










