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107705
www.desatech.com
CARE OF GUIDE BAR
Uneven bar wear causes most guide bar problems.
Incorrect sharpening of chain cutter and depth gauge
settings often cause this. When bar wears unevenly,
it widens guide bar groove (see Figure 18). This
causes chain clatter and rivet popping. Saw will not
cut straight. Replace guide bar if this occurs.
Inspect guide bar before sharpening chain. A worn or
damaged guide bar is unsafe. A worn or damaged guide
bar will damage chain. It will also make cutting harder.
CLEANING SAW BODY
CLEANING AND
MAINTENANCE
NOTICE: Below are instructions for ser-
vicing your chain saw. Any servicing not
mentioned below should be done by an
authorized service center.
WARNING: Unplug chain saw from
power source before servicing. Severe injury
or death could occur from electrical shock
or body contact with moving chain.
WARNING: Cutting edges on chain
are sharp. Use protective gloves when
handling chain.
WARNING: When cleaning saw body,
• do not submerge saw in any liquids
• do not use products that contain am
-
monia, chlorine, or abrasives
• do not use chlorinated cleaning sol
-
vents, carbon tetrachloride, kerosene,
or gasoline
Keep saw body clean. Use a soft cloth dampened with a
mild soap and water mixture. Wipe saw body to clean.
Normal Guide Bar Maintenance
1. Remove guide bar from chain saw.
2. Remove sawdust from guide bar groove periodi
-
cally. Use putty knife or wire (see Figure 19).
3. Clean oil slots after each day of use.
4. Remove burrs from sides of guide bar. Use flat
file to make side edges square.
Replace guide bar when
• bar is bent or cracked
• inside groove of bar is badly worn
Note: When replacing guide bar, see Replacement
Parts and Accessories, page 16, for proper bar.
WARNING: Unplug chain saw from
power source before servicing. Severe injury
or death could occur from electrical shock
or body contact with moving chain.
WARNING: Cutting edges on chain
are sharp. Use protective gloves when
handling chain.
SHARPENING SAW CHAIN
Keep chain sharp. Your saw will cut faster and more
safely. A dull chain will cause undue sprocket, guide
bar, chain, and motor wear. If you must force chain
into wood and cutting creates only sawdust with few
large chips, chain is dull.
Guide Bar With
Uneven Wear
Figure 18 - Guide Bar Cross Section Showing
Uneven Bar Wear
Guide Bar
Normal Guide
Bar
Guide Bar Groove
Figure 19 - Guide Bar Maintenance
Flat File
Burr
Oil Slot
Cleaning Groove With Putty Knife
Guide Bar