Zenoah BC4401DW manual

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. WARNING OWNER / OPERA T OR MANUAL BRUSHCUTTERS 848-G6D-93A1 (603) BC3401DL BC4401DW Thank you for purchasing a RedMax product. Before using our brushcutters, please read this manual carefully to underst[...]

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 . Instructions labeled as shown at left, concern critical steps or procedures which must be followed in order to prevent accidents which could lead to serious bodily[...]

CONTENTS Specifications······························································································· 4 Emission control label························································[...]

 4  Specifications ■ BC3401DL Overall size(LxWxH) ····················································· 67.7x12.6x13.6(in) / 1720x320x345(mm) Dry weight w/o acc. ·······························································?[...]

BC3401DL KOMA TSU ZENOAH CO. MADE IN JAP AN IMPOR T ANT ENGINE INFORMA TION THIS ENGINE CONFORMS T O US EP A PH1 FOR SMALL OFF-ROAD ENGINES. ENGINE F AMIL Y : 6KZXS.0344UV ;EM ENGINE DISPLACEMENT : 34cc REFER T O OWNER'S MANUMAL FOR MAINTE- NANCE SPECIFICA TIONS AND ADJUSTMENTS. MANUF ACTURED G34L TYPE DE MOTEUR : 6KZXS.0344UV ;EM CYLINDRÉE D[...]

 6  ■ 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 aris[...]

Safety Precautions ■ Work gear and clothing • 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. • Always be sure to wear helmet and face protector when using your brushcutter. • When using your brushcutte[...]

 8  Safety Precautions ■ Things to check before using your brushcutter • 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. • The area within a perim[...]

■ 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 pos[...]

 10  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 man[...]

■ 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. ■ INSTALLING HANDLE •M ount the handle to the shaft tube and clamp it at your best operating position. ■ INSTALLING DEBRIS GUARD • Put[...]

■ PUTTING ON WAIST PAD (BC4401DW only) •W arp 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 upp[...]

Fuel  13  ■ RECOMMENDED MIXING RATIO GASOLINE 50:OIL 1 (when using ZENOAH genuine oil) • Exhaust emission are controlled by the fundamental engine parameters and components(eq., carburation, ignition timing and port timing) without addition of any major hardware or the introduction of an inert material during combustion. • These engines[...]

 14  Fuel again for at least one minute. As some oils may be difficult to agitate depending on oil ingredients, sufficient agitation is necessary for the engine to last long. Be careful that, if the agitation is insufficient, there is an increased danger of early piston seizing due to abnormally lean mixture. 5. Put a clear indication on the [...]

• 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 fu[...]

■ STOPPING ENGINE 1. Release the throttle lever and run the engine for a half minute. 2. Shift the ignition switch to the STOP position. • Except for an emergency, avoid stopping the engine while pulling the throttle lever. ■ ADJUSTING IDLING SPEED 1. When the engine tends stop frequently at idling mode, turn the adjusting screw clockwise. 2.[...]

 17  Under growth Heavy weeds Light weeds Grass BC3401DL BC4401DW Saw blade 6298-11313 10” 6298-15343 10” 6298-14343 10” PT104 4” PT100 6” 8-teeth blade 4-teeth blade Nylon line head CUTTER APPLICATION CHART Optional Blade Usage ■ CHOOSE THE BLADE Choose a suitable recommended cutting attachment according to the object to be cut. [...]

 18  Optional Blade Usage 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 130~174 in-lbs TIGHTENING TORQUE: (14.7~19.6 N.m.) Change the loop handle to the J-handle for[...]

Optional Blade Usage depth according to the condition of object. • 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, a[...]

 20  ■ CONTROLLING BLADE BOUNCE • Blade thrust can cause serious personal injury. Carefully study this section. It is important that you understand what causes blade thrust, how you can reduce the chance of blade thrust and how you can remain in control of the unit if blade thrust does occur. 1. What causes blade thrust: • Blade thrust [...]

Optional Blade Usage OPT9 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 boun[...]

•A lways be sure to stop the engine before inspecting the brushcutter for problems or performing maintenance. • Never alter the brushcutter or take the engine apart. •W hen 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[...]

■ FUEL FILTER •W hen 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[...]

• If waste gets stuck and causes blockage around the intake air cooling vent or between the cylinder fins, it may cause the engine to overheat, and that in turn may cause mechanical failure on the part of the brushcutter. ■ PROCEDURES TO BE PERFORMED AFTER EVERY 100 HOURS OF USE 1. Remove the muffler, insert a screwdriver into the vent, and wip[...]

Parts List 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 se[...]

Parts List  26  Fig.1 DRIVE UNIT BC3401DL (S/N 60200000 and up)[...]

Fig.1 DRIVE UNIT BC3401DL (S/N 60200000 and up) Key# Description Part Number Q'ty 1 HOUSING 4050-11110 1 2 CAP 4050-11150 1 3 JOINT 4050-11210 1 4 ABSORBER-F 4050-11250 1 5 ABSORBER-R 4050-11260 1 6 BOLT 01252-30530 4 7 BOLT 01252-30630 1 8 BOLT 01252-30510 1 9 DRUM, clutch 848-B81-51A1 1 10 BEARING T3149-11350 1 11 SNAPRING 04065-03515 1 12 S[...]

Fig.2 ENGINE UNIT BC3401DL (S/N 60200000 and up)  28  Parts List[...]

 29  Fig.2 ENGINE UNIT BC3401DL (S/N 60200000 and up) Key# Description Part Number Q'ty 1 CYLINDER T1151-12110 1 2 BOLT 1850-12130 4 3 GASKET, base 4500-13120 1 4 CRANKCASE COMP. 4500-21101 1 5• PIN 2629-21130 3 6 GUARD 4500-22110 1 7 SCREW 0263-90514 1 8 GASKET, case 4500-21140 1 9 BEARING 06030-06201 2 10 OIL SEAL 4810-21210 1 11 OIL[...]

Parts List  30  Fig.3 DRIVE UNIT BC4401DW (S/N 60200000 and up)[...]

Fig.3 DRIVE UNIT BC4401DW (S/N 60200000 and up) Key# Description Part Number Q'ty 1 HOUSING 4050-11110 1 2 CAP 4050-11150 1 3 JOINT 4050-11210 1 4 ABSORBER-F 4050-11250 1 5 ABSORBER-R 4050-11260 1 6 BOLT 01252-30530 4 7 BOLT 01252-30630 1 8 BOLT 01252-30510 1 9 DRUM, clutch 848-B81-51A1 1 10 BEARING T3149-11350 1 11 SNAPRING 04065-03515 1 12 S[...]

Fig.4 ENGINE UNIT BC4401DW (S/N 60200000 and up)  32  Parts List[...]

 33  Fig.4 ENGINE UNIT BC4401DW (S/N 60200000 and up) Key# Description Part Number Q'ty 1 CYLINDER 848-G6D-12A0 1 2 BOLT 1850-12130 4 3 GASKET, base 4500-13120 1 4 CRANKCASE COMP. 4500-21101 1 5• PIN 2629-21130 3 6 GUARD 4500-22110 1 7 SCREW 0263-90514 1 8 GASKET, case 4500-21140 1 9 BEARING 06030-06201 2 10 OIL SEAL 4810-21210 1 11 OI[...]

EMISSION-RELATED PARTS, FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY OF THE UNIT, RedMax / KOMATSU ZENOAH AMERICA, INC., 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. EMISSION-RELATED PARTS ARE: THE CA[...]

Pièces en rapport avec les émissions de gaz d'échappement : RedMax / 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 d?[...]

KOMA TSU ZENOAH AMERICA INC. 4344 Shackleford Road Suite 500 Norcross, Georgia 30093 ©P rinted in Japan[...]