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1.
Loosen lock nut (A) as shown in the diagram.
2.
Tighten screw (B)fully, and then turn one-third to one half of
a rotation backward.
3.
While holding onto the screw to keep it in position, tighten
the lock nut.
4.
Check to make sure that the flat washer is loose enough
so that it may be turned by
pressing on it with a finger.
NOTE
Screwing in the screw too tightly may make it impossible for the blades to move.
Conversely, not screwing in the screw tightly enough may make the blades of the
trimmer feel dull and cause leaves and branches to become caught in the blades
of the trimmer.
GEAR CASE
The reduction gears are lubricated by multipurpose, lithium-based grease in the gear
case. Supply new grease every 25 hours of use or more often depending on the job
condition.
GUIDE BAR
Remove sawdust in the bar groove and the oiling port.(Type: Sprocket nose)
Grease the nose sprocket from the feeding port on the tip of the bar.
The bar rail should always be a square. Check for wear of the bar rail. Apply a ruler to
the bar and the outside of a cutter. If a gap is observed between them, the rail is
normal. Otherwise, the bar rail is worn. Such a bar needs to be corrected or replaced.
SPROCKET
Check for extensive wear, and replace it when the teeth are worn over 0.3mm
SAW CHAIN
WARNING
It is very important for smooth and safe
operation to keep the cutters always sharp.
