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OPERATING INSTRUCTIONS
WARNING!
Always loosen guide bar nuts before turning chain tension adjuster
screw, otherwise clutch cover and chain tension adjuster will be damaged.
Do not over-tighten guide bar nuts, damage to the saw may occur.
!
WARNING!
Never touch the chain while motor is running. Turn off motor before
adjusting the saw chain tension. Not doing so may cause severe personal injury
or death.
!
Chain Tension Adjustment
1. Loosen the guide bar nuts.
2. Using gloved hand, hold the guide bar nose up and turn the chain tension
adjuster screw clockwise until saw chain touches bottom of guide bar.
Tighten both guide bar nuts with the guide bar nose held up.
3. Test the chain tension by pulling the saw chain around the guide bar with
gloved hand, and make sure the distance is around 3~6mm. Reduce saw
chain tension if tight spots are felt.
4. Keep the proper tension on the saw chain at all times.
Chain lubrication verification
To test if chain lubricating oil is adequately dispensed unto the guide bar, hold
the guide bar above a dry surface and engage the throttle to half speed for 30
seconds. A thin line of “thrown” oil should be seen on the dry surface. Never
operate the saw without chain lubrication. Running the saw without
lubrication can cause irreparable harm to the entire cutting attachment.
Kick back safety precautions
Kickback is the name given to a sudden, rapid upward movement of the saw
cutting mechanism in an upward arc towards the operator. Kickback occurs
when the upper quadrant of the bar nose comes in contact with a solid object
or is pinched. The rotational force of the chainsaw can be reversed in the
opposite direction of the chain movement. This may fling the bar up and back
in an arc towards the operator. Serious injury or even death can result from
contact between the moving saw chain and the operator.
The best protection against injury due to kickback is to avoid situations
that can cause kickback:
- Grip Saw Firmly. Hold the chain saw firmly with both hands when the motor
is running. Use a firm grip with thumbs and fingers encircling the chain saw
handles.
- Do not over reach.
- Keep proper footing and balance at all times.
- Don’t let the nose of the guide bar contact a log, branch, ground or other
obstruction.
- Don’t cut above shoulder height.
- Use devices such as low kickback chain, guide bar nose guards, chain
brake and special guide bars that reduce the risks associated with kickback.
- Only use replacement bars and chains specified by the manufacturer or the
equivalent.
