CLEANING AND
MAINTENANCE
Continued
Items Needed to Sharpen Chain
Purchase these items from your local dealer, hard- ware store, or chain saw supplies outlet.
¥5/32" round Þle
¥Depth gauge tool
¥File guide
¥Vise
¥Medium sized ßat Þle
Sharpening Cutters
Use Þle guide for 30¡ Þling.
1.Adjust chain for proper tension (see Saw Chain Tension Adjustment, pages 8 and 9).
2.Clamp guide bar in vise to hold saw steady. Note: Do not clamp chain.
3.Press 5/32" round Þle (attached to Þle guide) into groove between top plate and depth gauge on chain. File guide should rest on both top plate and depth gauge (see Figure 20). Note: File at midpoint of guide bar.
Filing Direction
30¡ Guide Mark
File Guide
5/32" Round
File
Note: This illustration shows Þle guide placement and Þling direction for sharpening cutters on left side of chain.
Figure 20 - File and File Guide Placement On Chain
Depth Gauge (right
Depth Gauge (left side of chain) side of chain)
Groove
Groove
Top Plate (left
side of chain)
Top Plate (right side of chain)
4.Hold Þle guide level. Make sure 30¡ mark on Þle guide is parallel to center of guide bar (see Figure 20). This will insure that you Þle cutters at 30¡ angle.
5.File from inside towards outside of cutter until sharp. Only Þle in this one direction (see Figure 20). Note: Two or three strokes with Þle should sharpen cutter.
6.After each cutter is sharpened, move chain for- ward to sharpen next cutter. File all cutters on one side of chain.
7.Move to other side of chain and repeat process.
Filing Cutter Depth Gauges
The cutter depth gauge clearance is reduced as cut- ters are sharpened. After every second or third sharp- ening, reset cutter depth gauges.
1.Place depth gauge tool (.025") Þrmly across top of two cutters. Make sure depth gauge enters slot in depth gauge tool (see Figure 22).
2.Use medium ßat Þle. File depth gauge level with depth gauge tool.
3.Remove depth gauge tool. With ßat Þle, round off front corner of cutter depth gauge (see Fig- ure 23).
After several hand Þlings, have authorized service center or sharpening service machine sharpen chain. This will insure even Þling.
REPLACING SAW CHAIN
Replace chain when cutters are too worn to sharpen or when chain breaks. Only use replacement chain noted in this manual.Always include new drive sprocket when replacing chain. This will maintain proper driving of chain. Note: For proper chain and drive sprocket, see Replacement Parts and Accessories, page 16.
Flat File
Depth
Gauge
Depth Gauge Tool
Depth Gauge Slot
Figure 22 - Depth Gauge Tool On Chain
Front Corner
.025"
.635 mm
ENGLISH
Right Side of Chain | Figure 23 - Round Off Front Corner Of Depth |
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Figure 21 - Chain Part Locations |
| Gauge |
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107705 | 17 | www.desatech.com |
17 | 12/16/03, 4:07 PM |
