102891
OWNER’S MANUAL
13
Top Plate
(left side
of chain)
Groove
Depth
Gauge
(left side
of chain)
Depth
Gauge
(right side
of chain)
Left
Side of
Chain
Right
Side of
Chain
Figure 21 - Chain Part Locations
Top Plate
(right side
of chain)
Groove
Figure 20 - File and File Guide Placement
On Chain
30°
Guide
Mark
File Guide
4 mm
Round File
Note:
This
illustration
shows file guide
placement and
filing direction
for sharpening
cutters on left
side of chain.
Filing
Direction
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.
Items Needed to Sharpen Chain
Purchase these items from your local dealer,
hardware store, or chain saw supplies outlet.
•4 mm round file
• Depth gauge tool
• File guide
•Vise
• Medium sized flat file
Sharpening Cutters
Use file guide for 30° filing.
1. Adjust chain for proper tension (see Saw
Chain Tension Adjustment, page 8).
2. Clamp guide bar in vise to hold saw
steady.
Note:
Do not clamp chain.
3. Press four millimeter round file (at-
tached to file guide) into groove be-
tween top plate and depth gauge on
chain. File guide should rest on both
top plate and depth gauge (see Figures
20 and 21).
Note:
File at midpoint of
guide bar.
4. Hold file guide level. Make sure 30°
mark on file guide is parallel to center
of guide bar (see Figure 20). This will
insure that you file cutters at 30° angle.
5. File from inside towards outside of cut-
ter until sharp. Only file in this one direc-
tion (see Figure 20).
Note:
Two or three
strokes with file should sharpen cutter.
6. After each cutter if sharpened, move
chain forward to sharpen next cutter.
File all cutters on one side of chain.
7. Move to other side of chain and repeat
process.
SHARPENING YOUR SAW
CHAIN
WARNING: Unplug chain saw
from power source before servic-
ing. 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.
Figure 19 - Guide Bar Maintenance
Cleaning Groove
With Putty Knife
Oil
Slot
Flat
File
Burr
Guide Bar
Normal Guide Bar Maintenance
1. Remove guide bar from chain saw.
2. Remove sawdust from guide bar groove
periodically. Use putty knife or wire.
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 Re-
placement Parts, page 14, for proper bar.
Figure 18 - Guide Bar Cross Section
Showing Uneven Bar Wear
Normal
Guide Bar
Guide Bar With
Uneven Wear
Guide
Bar
CLEANING AND
MAINTENANCE
Continued
Guide Bar
Groove
Continued
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.
(28 pages)
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