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.
CLEANING SAW BODY
WARNING: Unplug chain saw from powersourcebeforeservicing.Severeinjury 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.
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 20). 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.
Guide Bar Groove
Guide Bar
Normal Guide | Guide Bar With |
Bar | Uneven Wear |
Figure 20 - Guide Bar Cross Section Showing Uneven Bar Wear
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 21). |
| |
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. | ENGLISH | |
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 17, for proper bar.
SHARPENING SAW CHAIN
WARNING: Unplug chain saw from powersourcebeforeservicing.Severeinjury 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.
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.
Burr
Flat File
Guide Bar
Cleaning Groove With Putty Knife
Oil Slot
Figure 21 - Guide Bar Maintenance
Continued
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