Breaking in a New Saw Chain A new chain and bar will need chain readjustment after as few as 5 cuts. This is normal during the break-in period, and the interval between future adjustments will begin to lengthen quickly. Chain Lubrication Always make sure the automatic oiler system is working properly. Keep the oil reservoir filled with Chain, Bar and Sprocket Oil. Adequate lubrication of the bar and chain during cutting oper ations is essential to minimize friction with the guide bar. Never starve the bar and chain of lubricating oil. Running the saw dry or with too little oil will decrease cutting efficiency, shorten saw chain life, cause rapid dulling of chain, and lead to excessive wear of bar from overheating. Too little oil is evidenced by smoke or bar discoloration. Chain Sharpening Chain sharpening requires special tools to ensure that cutters are sharpened at the correct angle and depth. For the inexperienced chain saw user, we recommend that the saw chain be professionally sharpened by the nearest Authorized Service Center. If you feel comfortable sharpening your own saw chain, special tools are available from your Authorized Service Center. Use 3/16” round file to sharpen this chain. CHAIN REPLACEMENT INFORMATION Bar Length Drive Links Sears Part # 18” Bar 72 DL 36514 INERTIA CHAIN BRAKE® ACTION NOTE: THIS SAW IS EQUIPPED WITH AN INERTIA CHAIN BRAKE. IF THE SAW KICKS BACK WHILE IN USE, THE INERTIA OF THE MOVING SAW WILL ACTIVATE THE BRAKE. A BRAKE BAND AROUND THE CLUTCH DRUM ACTIVATES AND STOPS THE MOVING CHAIN. Never have more WARNING: than 3 links removed from a loop of chain. This could cause damage to the sprocket. 21 TROUBLESHOOTING CAUSE ACTION 1. Incorrectly gapped spark plug 1. Clean/gap or replace plug 2. Plugged spark arrestor 2. Clean or replace spark arrestor 3. Dirty air filter 3. Clean or replace air filter CAUSE ACTION 1. Incorrect carburetor mixture adjustment setting 1. Have carburetor adjusted by a Sears or other qualified service dealer 2. Old or improperly mixed fuel 2. Drain gas tank (see Storage)/add fresh fuel mixture 3. Air filter is plugged 3. Replace or clean the air filter 4. Fouled spark plug 4. Replace or clean the spark plug CAUSE ACTION 1. Incorrect starting procedures 1. Follow instructions in the Starting/Stopping section 2. Incorrect carburetor mixture adjustment setting 2. Have carburetor adjusted by a Sears or other qualified service dealer 3. Fouled spark plug 3. Clean/gap or replace plug 4. Empty fuel tank 4. Fill fuel tank with properly mixed fuel 5. Primer bulb was not pressed enough 5. Press primer bulb fully and slowly 10 times UNIT WON’T START OR STARTS BUT WILL NOT RUN UNIT STARTS, BUT ENGINE HAS LOW POWER ENGINE HESITATES NO POWER UNDER LOAD CAUSE ACTION 1. Fuel filter is plugged 1. Replace the fuel filter 2. Incorrect lever position 2. Move to Position 3 3. Dirty spark arrestor screen 3. Replace spark arrestor screen 4. Dirty air filter 4. Remove, clean and reinstall filter 5. Incorrect carburetor mixture adjustment setting 5. Have carburetor adjusted by a Sears or other qualified service dealer CAUSE ACTION 1. Incorrect carburetor mixture adjustment setting 1. Have carburetor adjusted by a Sears or other qualified service dealer 2. Air filter is plugged 2. Replace or clean the air filter 3. Old or improperly mixed fuel 3. Drain gas tank/add fresh fuel mixture RUNS ERRATICALLY CAUSE ACTION 1. Incorrect carburetor mixture adjustment setting 1. Have carburetor adjusted by a Sears or other qualified service dealer 2. Incorrect fuel mixture 2. Use properly mixed fuel (40:1 mixture) SMOKES EXCESSIVELY TROUBLESHOOTING CAUSE ACTION 1. Incorrectly gapped spark plug 1. Clean/gap or replace plug 2. Plugged spark arrestor 2. Clean or replace spark arrestor 3. Dirty air filter 3. Clean or replace air filter CAUSE ACTION 1. Incorrect carburetor mixture adjustment setting 1. Have carburetor adjusted by a Sears or other qualified service dealer 2. Old or improperly mixed fuel 2. Drain gas tank (see Storage)/add fresh fuel mixture 3. Air filter is plugged 3. Replace or clean the air filter 4. Fouled spark plug 4. Replace or clean the spark plug CAUSE ACTION 1. Incorrect starting procedures 1. Follow instructions in the Starting/Stopping section 2. Incorrect carburetor mixture adjustment setting 2. Have carburetor adjusted by a Sears or other qualified service dealer 3. Fouled spark plug 3. Clean/gap or replace plug 4. Empty fuel tank 4. Fill fuel tank with properly mixed fuel 5. Primer bulb was not pressed enough 5. Press primer bulb fully and slowly 10 times UNIT WON’T START OR STARTS BUT WILL NOT RUN UNIT STARTS, BUT ENGINE HAS LOW POWER ENGINE HESITATES NO POWER UNDER LOAD CAUSE ACTION 1. Fuel filter is plugged 1. Replace the fuel filter 2. Incorrect lever position 2. Move to Position 3 3. Dirty spark arrestor screen 3. Replace spark arrestor screen 4. Dirty air filter 4. Remove, clean and reinstall filter 5. Incorrect carburetor mixture adjustment setting 5. Have ...