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MTD BCR4 Operator's Manual

4-cycle petrol trimmer
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BCR4
4-Cycle Petrol Trimmer
OPERATOR'S
MANUAL
IMPORTANT MANUAL
DO NOT THROW AWAY

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Summary of Contents for MTD BCR4

  • Page 1 BCR4 4-Cycle Petrol Trimmer OPERATOR’S MANUAL IMPORTANT MANUAL DO NOT THROW AWAY...

  • Page 2: Table Of Contents

    We reserve the right to make changes at any time without notice. Copyright© 2002 MTD SOUTHWEST INC All Rights Reserved. SERVICE INFORMATION Service on this unit both within and after the warranty period should be performed only by an authorized and approved service dealer.

  • Page 3: Rules For Safe Operation

    RULES FOR SAFE OPERATION The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and their explanations, deserve your careful attention and understanding. The safety warnings do not by themselves eliminate any danger. The instructions or warnings they give are not substitutes for proper accident prevention measures.

  • Page 4: Save These Instructions

    RULES FOR SAFE OPERATION • Wear heavy, long pants, boots and gloves. Do not wear loose clothing, jewelry, short pants, sandals or go barefoot. Secure hair above shoulder level. • The string guard must be in place at all times while operating the unit.

  • Page 5: Safety And International Symbols

    RULES FOR SAFE OPERATION SAFETY AND INTERNATIONAL SYMBOLS This operator's manual describes safety and international symbols and pictographs that may appear on this product. Read the operator's manual for complete safety, assembly, operating and maintenance and repair information. SYMBOL MEANING •...

  • Page 6: Ignition Switch

    RULES FOR SAFE OPERATION SYMBOL • THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY WARNING: away from rotating cutting head. IGNITION SWITCH ON / START / RUN • IGNITION SWITCH OFF or STOP • HOT SURFACE WARNING Do not touch a hot muffler or cylinder. You may get burned. These parts get extremely hot from operation and remain hot for a short time after the unit is turned off.

  • Page 7: Know Your Unit

    RULES FOR SAFE OPERATION KNOW YOUR UNIT APPLICATIONS As a trimmer: • Cutting grass and light weeds • Edging • Decorative trimming around trees, fences, etc. Air Filter Cover Choke Lever Fuel Cap Oil Fill Plug / Dipstick Shaft Housing Gear Housing Cutting Attachment Spark Plug...

  • Page 8: Assembly Instructions

    ASSEMBLY INSTRUCTIONS INSTALLING THE D-HANDLE The D-handle may be pre-installed one some units. In this case, all that is required is the loosening of screws and D-handle adjustment. Tailor the handle to the operator. Go to step 4 for adjusting the D-handle if it is pre-installed.

  • Page 9: Oil And Fuel Information

    OIL & FUEL INFORMATION RECOMMENDED OIL TYPE It is extremely important to use the proper type and weight of oil in the crankcase. Check the oil before each use and change the oil regularly. The use of incorrect or dirty oil can cause premature engine wear and failure.

  • Page 10: Oil And Fuel Information

    OIL & FUEL INFORMATION DEFINITION OF BLENDED FUELS Today's fuels are often a blend of petrol and oxygenates such as ethanol, methanol or MTBE (ether). Alcohol-blended fuel absorbs water. As little as 1% water in the fuel can make fuel form acids when stored.

  • Page 11: Starting/Stopping Instructions

    STARTING/STOPPING INSTRUCTIONS STARTING INSTRUCTIONS WARNING: Operate this unit only in a well ventilated outdoor area. Carbon monoxide exhaust fumes can be lethal in a confined area. WARNING: Avoid accidental starting. Make sure you are in the starting position when pulling the starter rope, as shown in Figure 9.

  • Page 12: Operating Instructions

    STARTING/STOPPING INSTRUCTIONS Engine Re-Start: Warm Engine With Fuel 1. Put the On/Off Stop Control in the START position. See Figure 6. 2. Move the choke lever to the PARTIAL (B) position. See Figure 7. 3. Squeeze the throttle control to the wide open (full throttle) position.

  • Page 13: Adjusting The Trimming Line Length

    OPERATING INSTRUCTIONS ADJUSTING TRIMMING LINE LENGTH The Bump Head™ allows you to release trimming line without stopping the engine. To release more line, lightly tap the cutting head on the ground while operating the trimmer at high speed. See Figure 10. FIGURE 10 NOTE: Always keep the trimming line fully extended.

  • Page 14: Maintenance And Repair Instructions

    MAINTENANCE & REPAIR INSTRUCTIONS MAINTENANCE SCHEDULE Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be a part of any seasonal tune-up. NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to any non-road engine repair establishment, individual or authorized service dealer.
  • Page 15 MAINTENANCE & REPAIR INSTRUCTIONS Winding the Inner Reel With New Line 1. Hold the outer spool with one hand and unscrew the Bump Knob clockwise. Inspect the bolt inside the Bump Knob to make sure it moves freely. Replace the Bump Knob if damaged. 2.

  • Page 16: Installing A Prewound Reel

    MAINTENANCE & REPAIR INSTRUCTIONS Membrane Line Installation 8. Take approximately 20 feet (6.1 m) of new trimming line. Insert one end of the line through one of the two holes in the inner reel. Pull the line through the inner reel until only about 4 inches is left out.

  • Page 17: Air Filter Maintenance

    MAINTENANCE & REPAIR INSTRUCTIONS AIR FILTER MAINTENANCE WARNING: To avoid serious personal injury, always turn off your trimmer and allow it to cool before you clean or maintain it. Clean and re-oil the air filter every 10 hours of operation. It is an important item to maintain. Failure to maintain the air filter will VOID the warranty.

  • Page 18: Checking/Changing The Oil

    MAINTENANCE & REPAIR INSTRUCTIONS CHECKING THE OIL LEVEL CAUTION: To prevent extensive engine wear and damage to the unit, always maintain the proper oil level in the crankcase. Never operate the unit with the oil level below the bottom of the dipstick. The importance of checking and maintaining the proper oil level in the crankcase cannot be overemphasized.

  • Page 19: Carburetor Setting

    MAINTENANCE & REPAIR INSTRUCTIONS CARBURETOR SETTING The idle speed of the engine is adjustable through the air filter/muffler cover. See Figure 26. NOTE: Careless adjustments can seriously damage your unit. An authorized service dealer should make carburetor adjustments. Check Fuel Mixture Old or dirty fuel is usually the reason for improper unit performance.
  • Page 20 MAINTENANCE & REPAIR INSTRUCTIONS 1. Loosen the four (4) screws shown in Figure 27. Engine Cover FIGURE 27 2. Remove the three (3) screws that secure the engine cover, visible in Figures 27 and 28. 3. Disconnect the spark plug wire. 4.

  • Page 21: Replacing The Spark Plug

    MAINTENANCE & REPAIR INSTRUCTIONS REPLACING THE SPARK PLUG Use a Champion RDZ19H spark plug (or equivalent). The correct air gap is 0.635 mm (0.025 in.) Remove the plug after every 25 hours of operation and check its condition. 1. Stop the engine and allow it to cool. Grasp the plug wire firmly and pull it from the spark plug.

  • Page 22: Troubleshooting Chart

    TROUBLESHOOTING GUIDE ENGINE WILL NOT START CAUSE Ignition switch is in OFF/STOP position ... .Turn ignition switch to ON Empty fuel tank ....... .Fill fuel tank with proper fuel Primer bulb wasn't pressed enough .
  • Page 23 NOTES...

  • Page 24: Specifications

    SPECIFICATIONS ENGINE Engine Type ..............Air-Cooled, 4-Cycle Displacement .

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