Chain Maintenance - Jonsered 2116 EL Operator's Manual

Chain Maintenance

Chain maintenance - safety
For personal safety, it is of great importance to use bar and
chain combinations of the low-kickback type, and that the
cutting equipment is properly maintained.
Important notes :
• Chain tension
• Sharpening
• Lubrication
• Maintenance
WARNING!
STOP
Always disconnect power supply before fitting parts or adjusting
the saw.
Chain tension
A loose chain may jump off the bar and cause injury.
This is also the most frequent cause of chain problems.
Loose running can also ruin a chain, bar and drive sprocket.
Chain tension should be checked frequently during work and
adjusted if necessary.
Tension the chain as tight as possible allowing the chain to
be pulled easily by hand.
After adjusting tension, check by pulling the chain in the normal
direction of rotation. Always wear gloves to protect your hands
from injury.
Chain lubrication
Top up chain oil reservoir regularly. Never run the chain dry.
Inadequate lubrication may cause friction, leading to cracked
links. For the same reason, waste oil must not be used as chain
oil. Always use a good high-adhesion chain oil which is designed
to withstand the pressure involved. Clean bar groove and oil hole
regularly.
Checking the lubrication system
Point the tip of the guide bar towards a light-colored surface
about 8 inches (20 cm) away. After the saw has been running for
1/2 - 1 minute there should be visible signs of oil spatter on the
surface.
Check daily for:
• Cracking in rivets and links
• Excessive wear on side links and cutting edges,
and stiffness in the chain
• A cutter should never be filed to less than 5/32 inch (4mm)
• Correct depth gauge setting
NOTE! Change drive sprocket each time a new chain is fitted.
CAUTION!
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