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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 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.
FILE HOLDER
30° Guide
Mark
File Guide
4 mm
Round File
Note: This
illustration
shows file
guide place-
ment and filing
direction for
sharpening
cutters on left
side of chain.
Filing
Direction
Figure 20 - File and File Guide Placement On Chain
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
Flat File
Depth
Gauge
Tool
Depth Gauge
Depth
Gauge
Slot
Figure 22 - Depth Gauge Tool On Chain
Continued
Figure 23 - Round Off Front Corner Of Depth Gauge
Front Corner
After several hand filings, have an authorized Echo servicing
dealer sharpen chain. This will insure even filing.
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).
Top Plate
(right side of chain)
Groove
.025"