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MTD BCR4 manual

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Table of contents for the manual

  • Page 1

    BCR4 4-Cycle Petrol T rimmer OPERA TOR’S MANUAL IMPORT ANT MANUAL DO NOT THROW AW A Y[...]

  • Page 2

    2 Thank You Thank you for purchasing this quality product. This modern outdoor power tool is designed to provide many hours of useful service. Y ou will find it to be a great labor -saving device. This operator’ s manual provides you with easy-to- understand operating instructions. Read the entire manual and follow all of the instructions to keep[...]

  • Page 3

    RULES FOR SAFE OPERA TION 3 SYMBOL MEANING W ARNING: Failure to obey a safety warning can result in serious personal injury to yourself or to others. Always follow the safety precautions to reduce the risk of fire and personal injury . CAUTION: Failure to obey a safety warning can result in serious personal injury to yourself or to others. Always f[...]

  • Page 4

    RULES FOR SAFE OPERA TION 4 •W ear 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. Failure to use the string guard may cause the clutch to overheat. DO NOT OPERA TE UNIT WI[...]

  • Page 5

    RULES FOR SAFE OPERA TION 5 SAFETY AND INTERNA TIONAL 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 • SAFETY ALERT SYMBOL Indicates dang[...]

  • Page 6

    RULES FOR SAFE OPERA TION 6 SYMBOL MEANING • THROWN OBJECTS AND ROT A TING CUTTER CAN CAUSE SEVERE INJUR Y W ARNING: Do not operate without plastic string guard in place. Keep away from rotating cutting head. IGNITION SWITCH ON / ST ART / RUN • IGNITION SWITCH OFF or STOP • HOT SURF ACE W ARNING Do not touch a hot muffler or cylinder . Y ou m[...]

  • Page 7

    RULES FOR SAFE OPERA TION 7 KNOW YOUR UNIT APPLICA TIONS As a trimmer: • Cutting grass and light weeds • Edging • Decorative trimming around trees, fences, etc. Cutting Attachment Shield Fuel Cap Throttle Control D-Handle Cutting Attachment Gear Housing Shaft Grip Primer Bulb Choke Lever Spark Plug Shaft Housing Starter Rope Grip Line Cutting[...]

  • Page 8

    FIGURE 2 FIGURE 1 4. If the D-handle was pre-installed, loosen its screws just enough so that the handle slides and moves easily . 5. While holding the unit in the operating position, arrange the D-handle to the location that provides you the best grip. See Figure 2. 6. T ighten the clamp screws evenly , until the D-handle is secure. ASSEMBL Y INST[...]

  • Page 9

    OIL & FUEL INFORMA TION 9 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. Use a high-quality SAE 30 weight oil of API (American Petroleum Institute)[...]

  • Page 10

    OIL & FUEL INFORMA TION 10 DEFINITION OF BLENDED FUELS T oday'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. When using alcohol-blended fuel, use fresh fuel that is less than 60 days ol[...]

  • Page 11

    FIGURE 7 ST AR TING/STOPPING INSTRUCTIONS 11 On/Off Stop Control Start/On Stop/Off ST ARTING INSTRUCTIONS W ARNING: Operate this unit only in a well ventilated outdoor area. Carbon monoxide exhaust fumes can be lethal in a confined area. W ARNING : Avoid accidental starting. Make sure you are in the starting position when pulling the starter rope, [...]

  • Page 12

    ST AR TING/STOPPING INSTRUCTIONS 12 FIGURE 9 HOLDING THE TRIMMER W ARNING : Always wear eye, hearing, foot and body protection to reduce the risk of injury when operating this unit. Before operating the unit, stand in the operating position. See Figure 9. Check for the following: • The operator is wearing eye protection and proper clothing • Wi[...]

  • Page 13

    TIPS FOR BEST TRIMMING RESUL TS 1. The correct angle for the cutting head is parallel to the ground. NOTE: Do not rest the Bump Head™ on the ground. 2. DO NOT FORCE THE UNIT . Allow the very tip of the line to do the cutting (especially along walls). Cutting with more than the tip will reduce cutting efficiency and may overload the engine. 3. Gra[...]

  • Page 14

    14 MAINTENANCE & REP AIR INSTRUCTIONS Check for Loose Fastener Parts • Bump Head™ • String Guard Screws After Each Use Clean Unit and Labels • Clean the unit using a damp cloth with a mild detergent. • Wipe off the unit with a clean dry cloth. • Keep air vents free from debris at all times. W ARNING : To prevent serious injury , nev[...]

  • Page 15

    FIGURE 14 FIGURE 15 FIGURE 12 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. Remove the inner reel from the outer spool. See Figure 12. MAINTENANCE & REP AIR INSTRUCTIONS 15 N[...]

  • Page 16

    MAINTENANCE & REP AIR INSTRUCTIONS 16 Membrane Line Installation 8. T ake 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. See Figure 17. 9. Insert the end of the line into the open hole in th[...]

  • Page 17

    AIR FIL TER MAINTENANCE W ARNING: 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 . 1. Remove the air filter cover by pullin[...]

  • Page 18

    MAINTENANCE & REP AIR INSTRUCTIONS 18 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 [...]

  • Page 19

    Idle Speed Screw FIGURE 26 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 perfor[...]

  • Page 20

    FIGURE 27 MAINTENANCE & REP AIR INSTRUCTIONS 20 Remove Screws Back of Engine Loosen Screws Remove Screw Rocker Arm Cover Spark Plug Hole 1. Loosen the four (4) screws shown in 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. Remove the spark plug. 5. Rem[...]

  • Page 21

    MAINTENANCE & REP AIR INSTRUCTIONS 21 FIGURE 31 REPLACING THE SP ARK 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. 2.[...]

  • Page 22

    TROUBLESHOOTING GUIDE 22 ENGINE WILL NOT ST ART CAUSE ACTION Ignition switch is in OFF/STOP position . . . . . . . . . . . .T urn ignition switch to ON Empty fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fill fuel tank with proper fuel Primer bulb wasn't pressed enough . . . . . . . . . . . . . . . .Press primer bulb[...]

  • Page 23

    23 NOTES[...]

  • Page 24

    SPECIFICA TIONS OPERA TOR’S MANUAL P ART NO. 792-10550A PRINTED IN THE USA 8/02 ENGINE Engine T ype . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air -Cooled, 4-Cycle Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]