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Manafacture: Husqvarna File size: 983.26 kb File name: L0807190.pdf Language of manual:

1. Loosen and remove the nut from the exhaust outlet cover. 2. Remove the exhaust oulet cover. 3. Remove spark arresting screen. Handle screen carefuIty to prevent damage. 4. Clean the spark arresting screen gently with a wire brush. Replace screen if breaks are found. 5. Replace any broken or cracked muffler parts, 6. Reinstall spark arresting screen, exhaust outlet cover, and nut. Tighten nut securely. REPLACE SPARK PLUG The spark plug should be replaced each year to ensure the engine starts easier and runs better. Ignition timing is fixed and nonadjustable. ,_b, WARNING: Disconnect the spark plug before performing maintenance, service, or adjustments except for carburetor adjustments. CHAIN SHARPENING _I_WARNING: Improper chain sharpening techniques and/or depth gauge maintenance will increase the chance of kickback which can result in serious injury. _ WARNING: Wear protective gloves when handling chain. The chain is sharp and can cut you even when it is not moving. Conditions which indicate the need for chain sharpening: 1. Loosen 3 screws on cylinder cover. 2. Remove the cylinder cover. 3. Pull offthe spark plug boot. 4. Remove spark plug from cylinder and discard. 5. Replace with Champion RCJ-7Y spark plug and tighten securely with a 3/4 inch (19 mm) socket wrench, Spark plug gap should be 0,025 inch (0,6 mm), 6, Reinstall the spark plug boot. 7, Reinstall the cylinder cover and 3 screws. Tighten securely, Cy}inder Cover Spark Plug Boot Spark Plug REPLACE FUEL FILTER To replace fuel filter, drain your unit by running it dry of fuel. Remove fuel cap and its connected retainer from tank. Puit filter from tank and remove from line. Replace and reassemble. • Reduction in size of wood chips, The size of the wood chip wilt decrease as the chain gets duller until it becomes more like a powder than a chip. Note that dead or rotted wood will not produce a good chip. • Saw cuts to one side or at an angle, • Saw has to be forced through the cut. Tool8 required: • 5/32 inch (4 mm) diameter round file and file holder • Flat file • Depth gauge tool TO SHARPEN CHAIN: 1. Move ON/STOP switch to the STOP position. 2. Check chain for proper tension. Adjust chain tension if necessary. See CHAIN TENSION section. 17 3. Sharpen Too Much Hook Angle Squared Off cutters. Corner • Tosharpenposition thecutters, ° thefileholderlevel(90)sothatit restsonthetopedgesofthecut teranddepthgauge. NOTE:Thechainhasbothleft andrighthandcutters. File H!_ _ File_ CLltter_o _ ,'Y ! _/ Depth Gauge r • Align the 30 ° file holder marks parallel with the bar and to the center of the chain. 30 ° File Holder Lille • Sharpen cutters on one side of the chain first. Fite from the inside of each cutter to the outside. Then, turn the chain saw around and re peat the process for the other side of the chain. • File on the forward stroke only. use 2 or 3 strokes per cutting edge. • Keep all cutters the same length when filing. • File enough to remove any damage to cutting edges (side plate and top plate of cutter). All Cutters Remove Damage SomeLeni • File chain to meet the specifications as shown. b.. 85° /"., 60° 30°' Hook Angle k_ O025inch ------_ (0.65 ram) _Rounded Right Corner Wrong _WARNING: Maintain the proper hook angle according to the manufacturer's specifications for the chain you are using. Improper hook angle will increase the chance of kickback which can result in serious injury. 4. Check and lower depth gauges. • Place gauge tool on cutter. • tf the depth gauge is higher than the depth gauge toot, file it level to the top of the depth gauge toot. • Maintain rounded front corner of depth gauge with a flat file. NOTE: The very top of the depth gauge should be flat with the front half rounded off with a fiat file. tf you require further assistance or are unsure about performing this procedure, contact your Sears Service Center or call our customer assistance help line at 1-800-235-5878. CHAIN REPLACEMENT _iL WARNING: Wear protective gloves when handling chain. The chain is sharp and can cut you even when it is not moving. It is normal for a new chain to stretch during the first 15 minutes of operation. You should recheck your chain tension each time before you start the chain saw and adjust the chain tension as required. See CHAIN TENSION section. Replace the old chain when it becomes worn or damaged. Use onty the Low-Kickback replacement chain specified in the repair parts list. The correct replacement bar and chain is also specified on a decal located on the chain saw. See your Sears Service Center to replace and sharpen individuaI cutters on your chain. TO REPLACE CHAIN: 1. Move ON/STOP switch to the STOP position. 18 2. Loosenremovecomandbarknob pletelybyliftingteverandturning counterclockwise, CRRF LOOSEN 3. Loosen chain tension by turning adjusting wheel (upward direction), Remove clutch cover. \ Bar Knob 4. Slide guide bar on bar bolts until guide bar stops against clutch drum sprocket. Guide bar Bar bolts 5. Remove the old chain. 6. Ca...

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