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2. Clamp guide bar in vise to hold saw steady. Note: Do not clamp chain. 3. Press 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 is 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. 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. Items Needed to Sharpen Chain Purchase these items from your local dealer, hardware store, or chain saw supplies outlet. • 5/32" round file • Depth gauge tool • File guide • Vise • Medium sized flat file 5/32" Round File 30° Guide Mark File Guide Filing Direction Note:This illustration shows file guide placement and filing direction for sharpen ing cutters on left side of chain. Figure 20 - File and File Guide Placement On Chain Depth Gauge Depth Gauge (right side of chain) Groove Top Plate (right side of chain) (left side of chain) Right Side of Chain Left Side of Chain Groove (left side of chain) Top Plate Figure 21 - Chain Part Locations 105419 13 Continued 14 105419 ELECTRIC CHAIN SAW ® PUSH TO SHARPEN 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 (.025") 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). After several hand filings, have authorized service center or sharpening service machine sharpen chain. This will insure even filing. Figure 22 - Depth Gauge Tool On Chain Flat File Depth Gauge Slot Figure 23 - Round Off Front Corner Of Depth Gauge Depth Gauge Tool Depth Gauge Front Corner .025" CLEANING AND MAINTENANCE Continued WARNING: Unplug chain saw from power source before servicing. 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. WARNING: Do not handsharpen this Fast Sharp chain. Hand-sharpening chain will increase risk of kickback. Figure 24 - Turning Sharpener Knob 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. Follow the steps below to sharpen Fast Sharp chain. The automatic chain sharpener sharpens cutter, lowers cutter depth gauge, and adjusts guard drive link. 1. Adjust saw chain for proper tension (see Saw Chain Tension Adjustment, page 7). 2. Clean out excess sawdust and wood chips from drive sprocket area. 3. Turn sharpener knob counterclockwise until clicking stops (see Figure 24). 4. Turn sharpener knob clockwise until you hear five distinct clicks. SHARPENING SAW CHAIN (Fast Sharp Model) Figure 25 - Sharpening Fast Sharp Chain Sharpener Knob 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 19. 5. Place saw on clean, flat surface. 6. Connect saw to power supply. 7. Hold saw, with both hands in normal cutting position. 8. Press in switch lockout with right thumb and squeeze trigger. 9. Gently push on sharpener knob. Saw must be running for chain to sharpen. Note: Sparks appearing shows sharpener is working (see Figure 25). If no sparks appear, continue to adjust sharpener one click at a time. After each click, press sharpener knob until light flow of sparks appears. After several sharpenings, you must turn sharpener knob more to bring stone into position. OWNER’S MANUAL TROUBLESHOOTING WARNING: Unplug chain saw from power source before servicing. Note: For additional help, visit DESA Severe injury or death could occur from electrical shock or body contact International’s Technical Service web with moving chain. site at www.des...

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