T1196-93110(112) OWNER / OPERATOR MANUAL BRUSHCUTTERS BC3401DL BC4401DW WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Thank you for purchasing a RedMax product. Before using our brushcutters, please read this manual carefully to understand the proper use of your unit.
Read this manual carefully to understand all safety precautions, controls, proper operation and maintenance of your RedMax brushcutters. Failure to do so could result in serious injury. SAFETY FIRST Instructions contained in warnings within this manual marked with a symbol concern critical points which must be taken into consideration to prevent possible serious bodily injury, and for this reason you are requested to read all such instructions carefully and follow them without fail.
CONTENTS Safety Precautions······················································································· 4 In Order To Ensure Proper And Safe Operation Of Your Brushcutter Work Gear And Clothing Warnings Considering Handling Of Fuel Things To Check Before Using Your Brushcutter Things To Check Before Starting Up The Engine Avoid Noise Problem Things To Be Careful About When Using Your Brushcutter Notes On Care And Maintenance Of Your Brushcutter Set Up·············································
Safety Precautions ■ In order to ensure proper and safe operation of your brushcutter • Read this Owner/Operator Manual carefully. Be sure you understand how to operate this unit properly before you use it. Failure to do so could result in serious injury. • Be sure to keep this manual handy so that you may refer to it later whenever any questions arise.
Safety Precautions ■ Work gear and clothing ■ Warnings considering handling of fuel • When using your brushcutter, always be sure to wear strong, durable, work clothing; shirts should be long-sleeved shirts and pants should be full-length pants reaching down to the ankles. • The engine of the RedMax® brushcutter is designed to run on a mixed fuel which contains highly flammable gasoline.
Safety Precautions ■ Things to check before using your brushcutter ■ Things to check before starting up the engine • Before beginning work, look around carefully to get a feel for the shape of the land, grass to be trimmed, and whether or not there are any obstacles which might get in the way while working, and remove any obstacles before beginning work.
Safety Precautions ■ Things to be careful about when using your brushcutter • When using your brushcutter, grip the handles of the brushcutter firmly with both hands, place your feet slightly apart (slightly further apart than the width of your shoulders) so that your weight is distributed evenly across both legs, and always be sure to maintain a steady, even posture while working.
Safety Precautions ■ Notes on care and maintenance of your brushcutter • In order to maintain your brushcutter in proper working order, perform the maintenance and checking operations described in this manual at regular intervals. In the event that any parts must be replaced or any maintenance or repair work not described in this manual must be performed, please contact a representative from the store nearest RedMax authorized servicing dealer for assistance.
Set Up ■ MOUNTING ENGINE • Put the engine onto the clutch side end of the driveshaft assembly, making the fuel tank and the cutter head come to the same side. Attach the engine firmly with the 4 screw provided. ■ CONNECTING THROTTLE WIRE 1. Remove the air cleaner cover. 2. Connect the end of the throttle wire to the joint on the top of the carburetor. ■ INSTALLING HANDLE • Mount the handle to the shaft tube and clamp it at your best operating position.
Set Up ■ PUTTING ON WAIST PAD (BC4401DW only) • Warp the waist pad around the shaft tube and the throttle wire. ■ INSTALLING CUTTING HEAD 1. While locking the gear shaft by inserting the attached bar into the upper holder and the gear box, loosen and remove the hexagon bolt(left-handed) 2. Fit the spacer attached to the head assembly between the upper and lower holders. Then screw in the cutting head to the gear shaft over the holders. Handtighten it securely.
Fuel WARNING • Gasoline is very flammable. Avoid smoking or bringing any flame or sparks near fuel. Make sure to stop the engine and allow it cool before refueling the unit. Select outdoor bare ground for fueling and move at least 3m(10ft) away from the fueling point before starting the engine. • The RedMax engines are lubricated by oil specially formulated for air-cooled 2-cycle gasoline engine use.
Operation WARNING 4. Shift the ignition switch to the START position. • Keep bystanders and animals at least 50 feet (15m) away from the operating point. If you are approached, immediately stop the engine. ■ STARTING ENGINE 1. Rest the unit on a flat, firm place. Keep the cutting head off the ground and clear of surrounding objects as it will start rotating upon starting of the engine. 2. Pump the primer until fuel flows out in the clear tube. 5. Pull the starter rope. 3.
Operation NOTE • Avoid pulling the rope to its end or returning it by releasing the knob. Such actions can cause starter failures. 6.When the engine has started, move the choke lever gradually downward to open the choke. 7.Allow the engine to warm up for a half minute before starting operation. ■ ADJUSTING IDLING SPEED 1. When the engine tends stop frequently at idling mode, turn the adjusting screw clockwise. 2.
Operation growth. The rate of cutting motion will depend on the material being cut. Heavy growth will require slower action than will light growth. 5. Never swing the unit so hard as you are in danger of losing your balance or control of the unit. 6. Try to control the cutting motion with the hip rather than placing the full workload on the arm and hands. 7. Take precautions to avoid wire, grass and dead, dry, long-stem weeds from wrapping around the head shaft.
Optional Blade Usage OPT1 CUTTER APPLICATION CHART Saw blade 8-teeth blade 4-teeth blade Nylon line head 6298-11313 10” 6298-15343 10” 6298-14343 10” PT104 PT100 4” 6” BC3401DL BC4401DW Under growth Heavy weeds Light weeds Grass ■ CHOOSE THE BLADE Choose a suitable recommended cutting attachment according to the object to be cut. (OPT1) • When replacing blade always be sure to use products which have been certified by RedMax.
Optional Blade Usage OPT3 IMPORTANT Change to the debris guard which is suitable for the metal blade. (OPT3) (1) Bolt : 3540-24130 x 2 pieces (2) Spring washer : 0290-20615 x 2 pieces (3) Clamp : 3541-24121 (4) Guard : 3541-24112 (5) Guard ass’y : 3541-24001 TIGHTENING TORQUE: 130~174 in-lbs (14.7~19.6 N.m.) OPT4 IMPORTANT Change the loop handle to the J-handle for safe operation. (OPT4) (1) Bracket : 3532-14102 (2) J-handle : 6367-14200 FOR BC3401DL ■ STARTING ENGINE Please refer to P.
Optional Blade Usage depth according to the condition of object. WARNING • If the grass or other object gets caught in the blade, or if the unit starts to shake or vibrate, turn off the engine and check the whole unit. Change the blade if it has been damaged. • Turn off the engine and make sure the blade has completely stop before checking the blade, and removing any object got caught in. OPT7 ■ OPERATION 1. Check the bolt to fasten the blade and be sure the bolt has no fault, and no abrasion. 2.
Optional Blade Usage WARNING ■ CONTROLLING BLADE BOUNCE • Kick out can cause serious personal injury. Carefully study this section. It is important that you understand what causes kick out, how you can reduce the chance of kick out and how you can remain in control of the unit if kick out does occur. 1. What causes kick out: • Kick out can occur when the moving blade contacts an object that it cannot cut.
Optional Blade Usage 3. How you can maintain the best control: a. Keep a good, firm grip on the unit with both hands. A firm grip can help neutralize bounce. Keep your right and left hands completely around the respective handles. b. Keep both feet spread apart in a comfortable stance and yet braced for the possibility that the unit could bounce. Do not overreach. Keep firm footing and balance. OPT9 ■ MAINTENANCE BLADE • Check the blade and the fasteners for looseness, cracking, or bending.
Maintenance WARNING • Always be sure to stop the engine before inspecting the brushcutter for problems or performing maintenance. • Never alter the brushcutter or take the engine apart. • When replacing parts, always be sure to use only RedMax products or products which have been certified by RedMax for use with the RedMax brushcutter. • Things to check before using brushcutter ■ REFILLING TRIMMING LINE 1. For replacement line, use a diameter of .095in (2.4mm).
Maintenance ■ FUEL FILTER • When the engine runs short of fuel supply, check the fuel cap and the fuel filter for blockage. ■ SPARK PLUG • Starting failure and mis-firing are often caused by a fouled spark plug. Periodically clean the spark plug and check that the spark gap is in the correct range. For a replacement plug, use the correct type specified by RedMax(See SPECIFICATIONS on the page 24). • REPLACEMENT PLUG IS A CHAMPION RCJ6Y OR THE EQUIVALENT, SUCH AS BOSCH WSR8E OR NGK BPMR7A.
Maintenance ■ INTAKE AIR COOLING VENT WARNING • Never touch the cylinder, muffler, or spark plugs with your bare hands immediately after stopping the engine. The engine can become very hot when in operation, and doing so could result in severe burns. • When checking the brushcutter to make sure that it is okay before using it, check the area around the muffler and remove any wood chips or leaves which have attached themselves to the brushcutter.
Storage • Aged fuel is one of major causes of engine starting failure. Before storing the unit, empty the fuel tank and run the engine until it uses all the fuel left in the fuel line and the carburetor. Store the unit indoor taking necessary measures for rust prevention.
Specifications ■ BC3401DL Overall size(LxWxH) ····················································· 67.7x12.6x13.6(in) / 1720x320x345(mm) Dry weight w/o acc. ··························································································· 13.4(lbs) / 6.
Parts List BRUSHCUTTERS BC3401DL BC4401DW NOTE : 1. Use KOMATSU ZENOAH genuine parts as specified in the parts list for repair and/or replacement. 2. KOMATSU ZENOAH does not warrant the machines, which have been damaged by the use of any parts other than those specified by the company. 3. When placing parts orders for repair and/or replacement, check if the model name and the serial number are applicable to those specified in the parts list, then use parts number described in the parts list. 4.
Parts List Fig.
Fig.
Parts List Fig.
Fig.2 ENGINE UNIT BC3401DL (S/N 200101 and up) Key# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Description CYLINDER BOLT GASKET, base CRANKCASE COMP. • PIN GUARD SCREW GASKET, case BEARING OIL SEAL OIL SEAL BOLT SNAP RING PISTON RING PIN RING BEARING WASHER CRANKSHAFT COMP.
Parts List Fig.
Fig.3 DRIVE UNIT BC4401DW (S/N 200101 and up) Key# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 Description HOUSING CAP JOINT ABSORBER-F ABSORBER-R BOLT BOLT BOLT DRUM, clutch BEARING SNAPRING SNAPRING BOLT PIPE COMP 1440x26xT2.
Parts List Fig.
Fig.4 ENGINE UNIT BC4401DW (S/N 200101 and up) Key# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Description CYLINDER BOLT GASKET, base CRANKCASE COMP. • PIN GUARD SCREW GASKET, case BEARING OIL SEAL OIL SEAL BOLT SNAP RING PISTON RING PIN RING BEARING WASHER CRANKSHAFT COMP.
CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS THE CALIFORNIA AIR RESOURCES BOARD AND KOMATSU ZENOAH Co. ARE PLEASED TO EXPLAIN THE EMISSION CONTROL SYSTEM WARRANTY ON YOUR 1995 AND LATER LAWN AND GARDEN EQUIPMENT ENGINE. IN CALIFORNIA, NEW UTILITY AND LAWN AND GARDEN EQUIPMENT ENGINES MUST BE DESIGNED, BUILT AND EQUIPPED TO MEET THE STATE'S STRINGENT ANTI-SMOG STANDARDS.
Red Max 2-YEAR LIMITED WARRANTY EMISSION-RELATED PARTS, FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY OF THE UNIT, KOMATSU ZENOAH AMERICA INC. (THE COMPANY), THROUGH ANY RedMax DEALER, WILL REPAIR OR REPLACE, FREE OF CHARGE, FOR THE ORIGINAL AND EACH SUBSEQUENT PURCHASER, ANY PART OR PARTS FOUND TO BE DEFECTIVE IN MATERIAL AND/OR WORKMANSHIP.
Red Max Garantie limitée à 2 ans Pièces en rapport avec les émissions de gaz d'échappement : KOMATSU ZENOAH AMERICA INC., par l'intermédiaire de n'importe quel revendeur RedMax, réparera gratuitement ou remplacera gratuitement pour l'acheteur initial et chaque acheteur successif toute(s) pièce(s) se révélant de constitution et/ou de montage défectueux pendant deux (2) ans à compter de la date initiale de livraison d’une unité.
EMISSION CONTROL LABEL BC3401DL G34L G34L IMPORTANT ENGINE INFORMATION INFORMATION IMPORTANTE CONCERNANT LE MOTEUR THIS ENGINE CONFORMS TO US EPA PH1 FOR SMALL OFF-ROAD ENGINES. ENGINE FAMILY : 1KZXS.0344UV;EM ENGINE DISPLACEMENT : 33.6cc REFER TO OWNER'S MANUMAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS. MANUFACTURED KOMATSU ZENOAH CO. MADE IN JAPAN CE MOTEUR CONFORMC AUX NORMCS U.S. EPA PH1 POUR LES PETITS MOTEURS TOUT-TERRAIN. TYPE DE MOTEUR : 1KZXS.
KOMATSU ZENOAH AMERICA INC.
