McCulloch Timberbear TM502 Chainsaw Owners Manual

USER MANUAL Gasoline Chain Saws Model : TM502 SAFETY OPERATION MAINTENANCE This product has been tested at a computed kickback angle (CKA) and conforms to ANSI B175.1-2000, Annex C. CAN/CSA-Z62.1-03 WARNING · PLEASE READ Beware of kickback. Hold chain saw firmly with both hands when using. For your own safety, please read and follow the safety precautions in this manual before attempting to operate your chain saw. Improper use can cause serious injury. PN 9096-31C206 Printed in Taiwan INTRODUCTION PLEASE READ Dear Customer, Thank you for purchasing a McCulloch product.

With proper operation and maintenance, it will provide you with years of service. In order to make the best use of your investment, be CERTAIN to familiarize yourself with the contents of the ENTIRE user manual before attempting to operate and maintain your unit. Be sure to carefully follow the step-by-step instructions in this manual to start, operate and maintain your new product. In the manual there will be the following call-outs: NOTE:, WARNING / CAUTION and WARRANTY. A NOTE: is used to convey additional information, to highlight a particular explanation, or to expand a step description. A WARNING or CAUTION identifies a procedure which, if not undertaken or if improperly done, can result in serious personal injury and/or damage to the unit. The (WARRANTY SYMBOL) serves notice that unless instructions or procedures are followed, any damage caused will void the warranty and repairs will be at owner’s expense. Pay particular attention to the safety precautions. They are written for your protection and contain important information you must know to safely operate your chain saw. FOR WARRANTY OR SERVICE CONTACT THE NEAREST AUTHORIZED SERVICE CENTER – LOCATE YOUR NEAREST SERVICE CENTER BY CALLING THE TOLL FREE NUMBER IN THIS MANUAL. TABLE OF CONTENTS 1 GENERAL INFORMATION . .3 1-1. General Identification 1-2. Safety Features 2 SAFETY PRECAUTIONS . .4 2-1. Kickback Safety Precautions 2-2. Other Safety Precautions 2-3. General Safety Precautions for chain saw users 2-4. More About Kickback 2-5. Kickback safety Labels 2-6. International Symbols 3 REMOVING & INSTALLING BAR & CHAIN .7 3-1. Bar & Chain Removal and Installation 3-2. Before starting your saw 3-3. Guide Bar/Saw Chain/Clutch Cover Removal or Installation 3-4. Saw Chain Tension Adjustment ® 3-5. CHAIN BRAKE Mechanical Test 4 FUEL AND LUBRICATION .10 4-1. Fuel 4-2. Mixing Fuel 4-3. Fuel and Lubrication Symbols Fuel Mixing Table 4-4. Recommended Fuels 4-5. Chain and Bar Lubrication 5 OPERATING INSTRUCTIONS .11 5-1. Engine Pre-Start Checks 5-2. To Start Engine 5-3. Re-Starting a Warm Engine 5-4. To Stop Engine ® 5-5. CHAIN BRAKE Operational Test 5-6. Saw Chain / Bar Lubrication 5-7. Automatic Oiler 6 GENERAL CUTTING INSTRUCTIONS . .13 6-1. Felling 6-2. Limbing 6-3. Bucking 6-4. Bucking Using a Sawhorse 7 MAINTENANCE INSTRUCTIONS . .15 7-1. Preventive Maintenance 7-2. Air Filter 7-3. Fuel Filter 7-4. Spark Arrester Screen 7-5. Spark Plug 7-6. Carburetor Adjustment 7-7. Storing a Chain Saw 7-8. Removing a Unit From Storage 8 BAR / CHAIN MAINTENANCE . .18 8-1. Guide Bar Maintenance 8-2. Chain Maintenance 8-3. Chain Replacement Information 9 TROUBLESHOOTING THE ENGINE . .20 10 PART LIST . .63 2 1 – GENERAL INFORMATION GENERAL IDENTIFICATION 1. GUIDE BAR 2. SAW CHAIN 3. SAW CHAIN ADJUSTMENT SCREW 4. SPARK ARRESTER SCREEN 5. CHAIN BRAKE® LEVER / HAND GUARD 6. FRONT HANDLE 7. STARTER HANDLE 8. SPARK PLUG 9. AIR CLEANER COVER 10. STOP SWITCH 11. SAFETY TRIGGER 12. OIL TANK CAP 13. STARTER COVER 14. FUEL TANK CAP 15. REAR HANDLE / BOOT LOOP 16. CHOKE LEVER 17. BAR RETAINING NUTS 18. THROTTLE / TRIGGER 19. CHAIN CATCHER 20. CHAIN BRAKE® COVER 21. SCREWDRIVER / WRENCH 22. CARRY CASE (Available on some models) NOTE: Study your saw and be familiar with its parts. 1-2. SAFETY FEATURES Numbers preceding the descriptions correspond with the numbers on preceding page to help you locate the safety feature. 2 LOW KICKBACK SAW CHAIN helps significantly reduce kickback, or the intensity of kickback, due to specially designed depth gauges and guard links. 4 SPARK ARRESTER SCREEN retains carbon and other flammable particles over 0.023 inches (0.6mm) in size from engine exhaust flow. Compliance with local, state and federal laws and/or regulations governing the use of a spark arrester screen is the user’s responsibility. See Safety Precautions for additional information. 5 CHAIN BRAKE® LEVER / HAND GUARD protects the operator’s left hand in the event it slips off the front handle while saw is running. 5 CHAIN BRAKE® is a safety feature designed to reduce the possibility of injury due to kickback by stopping a moving saw chain in milliseconds. It is activated by the CHAIN BRAKE® lever.