sunjoe SWJ599E Manual Del Operador página 10

8. Tighten the end cover nut completely using the hex key
wrench.
NOTE: If the chain is too tight, it will not rotate. Loosen the
end cover nut slightly and turn the chain tensioner 1/4 turn
counterclockwise. Lift the tip of the guide bar up and retighten
the end cover nut. Ensure that the chain can be rotated by
hand without binding.
NOTE: A new chain tends to stretch; check the chain tension
frequently, and adjust tension as required.
Replacing the Guide Bar + Chain
1. Disconnect the chain saw from the power supply.
2. Use the supplied hex key wrench to unscrew the end
cover nut to remove the chain/sprocket end (Fig. 1).
3. Remove the cutting bar and chain from the mounting
surface (Fig. 8).
Fig. 8
Cutting bar
4. Remove the old chain from the bar.
5. To lay out and install the new saw chain properly, follow
steps 2 to 6 from the section "Installing the Guide Bar +
Chain" beginning on page 8.
Preparing To Work
Checking the Machine
m
WARNING!
Before performing any checks,
adjustments, repairs, or maintenance on the machine, make
sure the unit is not connected to the power supply.
Before starting work, please:
• Check that all the screws on the machine and the guide
bar are tightly fastened;
• Check that the chain is correctly tensioned, properly
sharpened, and there are no signs of any damage;
• Check that hand grips and protection devices are clean
and dry, correctly mounted, and securely fastened to the
machine;
• Check that the trigger switch and the safety button move
freely without forcing and return automatically and rapidly
back to their neutral positions;
• Check that the trigger switch remains locked until the
safety button is pressed;
• Make sure the cooling air vents are not clogged with
sawdust or debris;
• Check that the chain's oil level is not below the "MIN"
level mark; if necessary, top up the oil to 1 cm from the rim
of the filler.
NOTE: You must fill the chain oil tank with bar and chain
oil before using your chain saw.
Adjusting the Chain Tension
m
WARNING!
adjustments, repairs, or maintenance on the machine, make
sure the tool is unplugged from the power supply.
m
CAUTION!
seconds after turning off the tool.
1. Loosen the end cover nut until it is hand-tight. Use the
flat-tip blade screwdriver to turn the chain tensioner
screw clockwise to tension the chain. A cold chain will
be correctly tensioned when there is no slack on the
underside of the guide bar; the chain is snug, but it can be
turned by hand without binding (Fig. 9).
Fig. 9
Chain
2. The tension is correct when the drive links on the chain do
not slip out of the chain guide on the bar when the chain is
pulled up from the middle of the bar (Fig. 10).
Fig. 10
10
Before performing any checks,
The chain will continue to run for several
Chain tensioner
Blade
screwdriver