20
ASSEMBLY
Chain Tensioning Check
WARNING!
Unplug the product from the power
source before adjusting the saw chain tension! The
cutting edges of the saw chain are sharp. Always
wear protective gloves when handling the chain.
NOTE:
The chain and bar have already been assembled on
the machine when you get it out of box. If disassembling the
chain and bar for replacement, please read the maintenance
part in this manual for details.
Always maintain proper chain tension. A loose chain
increases the risk of kickback! A loose chain may jump out
of the guide bar groove. This may injure the operator and
damage the chain. A loose chain will cause rapid wear to the
chain, guide bar and sprocket.
Tensioning the chain too tightly will overload the motor and
cause damage; insufficient tension can cause chain derailing,
whereas a correctly tightened chain provides the best cutting
characteristics and prolonged working life. The chain life
mainly depends upon sufficient lubrication and correct
tensioning.
Check the chain tension using one hand to lift the saw chain
(3) against the weight of the product. The correct chain
tension is achieved when the saw chain can be lifted by
approximately 2-4mm from the guide bar (4) in the centre
(Figs. 1, 2).
Fig. 1
Fig. 2