DR PRO-62V, Safety & Operating Instructions Manual

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18
DR ®
PRO-62V CHAINSAW
Wear leather Gloves when maintaining the Chain to protect your hands from
cuts.
Sharpening the Chain and filing the Depth Gauge
For smooth and fast cutting, the Chain needs to be maintained properly. The
Chain requires sharpening when the wood chips are small and powdery, the
Chain must be forced through the wood during cutting, or the Chain cuts to one
side. Refer to (
Figure 26 ) for description of chain features.
During maintenance of your Chain, remember:
•
Raker (Depth Gauge) clearance.
- Too low increases the potential for kickback.
- Not low enough decreases cutting ability.
•
If Cutter Teeth have hit hard objects such as nails and stones, or have been
abraded by mud or sand on the wood, have service dealer sharpen Chain.
•
Be careful to file all Cutters to the specified angles and to the same length, as
fast cutting can be obtained only when all Cutters are uniform.
•
Properly tension the Chain prior to sharpening. Refer to “Adjusting Chain
Tension” Section earlier in this manual.
•
Do all of your filing at the midpoint of the Bar.
•
Use light but firm pressure when filing.
•
Keep the File level with the Top Plate of the Tooth and do not let the File dip
or rock.
SIDE PLATE ANGLE ( Figure 27 )
Correct – 80 degrees produced automatically if correct diameter file is used in
file holder.
Hook – “Grabs” and dulls quickly. Increases potential of kickback. Results from
using a file with a diameter too small, or file held to low.
Backward Slope – Needs too much feed pressure, causes excessive wear to bar
and chain. Results from using a file with a diameter too large, or file held too
high.
TOP PLATE FILING ANGLE ( Figure 28 )
Correct 30 degrees – File holders are marked with guide marks to align file
properly to produce top plate angle.
-Less than 30 degrees – for cross cutting.
-More than 30 degrees – feathered edge dulls quickly.
•
Improper Chain sharpening increases the potential of kickback.
•
Failure to replace or repair damaged Chain can cause serious injury.
Figure 28
Figure 27
Figure 26