CLEANING AND MAINTENANCE
Continued
Sharpening Cutters
Use file guide for 30° filing.
1.Adjust chain for proper tension (see Saw Chain Tension Adjustment, page 7).
2.Clamp guide bar in vise to hold saw steady. Note: Do not clamp chain.
3.Press four millimeter (5/32") round file (attached to file guide) into groove between 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 cutter until sharp. Only file in this one direction (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.
Filing
Direction
30° Guide
Mark
File Guide
| Top Plate | |
Left Side | Groove (right side of chain) | |
| ||
of Chain | Depth Gauge | |
| ||
| (left side | |
| of chain) | |
Groove | ||
Top Plate | Depth Gauge | |
(left side | ||
(right side of chain) | ||
of chain) | ||
| ||
| Right Side | |
| of Chain | |
Figure 21 - Chain Part Locations
Filing Cutter Depth Gauges
The cutter depth gauge clearance is reduced as cutters are sharpened. After every second or third sharpening, reset cutter depth gauges.
1.Place depth gauge tool firmly across top of two cutters. Make sure depth gauge enters slot in depth gauge tool (see Figure 22).
2.Use medium flat file. File depth gauge level with depth gauge tool.
3.Remove depth gauge tool. With flat file, round off front corner of cutter depth gauge (see Figure 23).
Depth Gauge
4 mm (5/32") Round File
Note: This illustration shows file guide place- ment and filing direction for
Flat File
Depth
Gauge
Tool
Depth
Gauge
Slot
sharpening cutters on left side of chain.
Figure 20 - File and File Guide Placement On Chain
Figure 22 - Depth Gauge Tool On Chain
Front Corner
ECSp005
Figure 23 - Round Off Front Corner Of Depth Gauge
After several hand filings, have authorized service center or sharpening service machine sharpen chain. This will insure even filing.
101241 | 13 | Continued |
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