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OWNER / OPERATOR MANUAL
WARNING
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects or other reproductive harm.
APPLICABLE SERIAL NUMBERS :
BC3401DL
DRIVE UNIT 60200000 and up
BC4401DW DRIVE UNIT 60200000 and up
BRUSHCUTTERS
BC3401DL
BC4401DW
Thank you for purchasing a RedMax
product.
Before using our brushcutters, please
read this manual carefully to understand
the proper use of your unit.
ENGINE UNIT 60200000 and up
ENGINE UNIT 60200000 and up
848-G6D-93A1 (603)
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Table of Contents
Related Manuals for Zenoah BC4401DW
Summary of Contents for Zenoah BC4401DW
- Page 1 State of California to cause cancer, birth defects or other reproductive harm. APPLICABLE SERIAL NUMBERS : BC3401DL DRIVE UNIT 60200000 and up BC4401DW DRIVE UNIT 60200000 and up BRUSHCUTTERS BC3401DL BC4401DW Thank you for purchasing a RedMax product.
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Page 2: Safety First
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 contained in warnings within this manual marked with a 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. -
Page 3: Table Of Contents
Specifications······························································································· 4 Emission control label················································································· 5 Safety Precautions······················································································· 6 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... -
Page 4: Specifications
6 in. 2-line Head ········································································································ 1 pc. Shoulder Strap ·········································································································· 1 pc. Goggle ······················································································································· 1 pc. Tool Kit ······················································································································ 1 pc. 4 (when using ZENOAH genuine oil) (when using ZENOAH genuine oil) Specifications are subject to change without notice. -
Page 5: Emission Control Label
SMALL OFF-ROAD ENGINES. ENGINE FAMILY : 6KZXS.0344UV;EM ENGINE DISPLACEMENT : 34cc REFER TO OWNER'S MANUMAL FOR MAINTE- NANCE SPECIFICATIONS AND ADJUSTMENTS. MANUFACTURED KOMATSU ZENOAH CO. MADE IN JAPAN BC4401DW G43L IMPORTANT ENGINE INFORMATION THIS ENGINE CONFORMS TO US EPA PH1 FOR SMALL OFF-ROAD ENGINES. -
Page 6: Safety Precautions
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. -
Page 7: Work Gear And Clothing
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. -
Page 8: Things To Check Before Using Your Brushcutter
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. -
Page 9: Things To Be Careful About When Using Your Brushcutter
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... -
Page 10: Notes On Care And Maintenance Of Your Brushcutter
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... -
Page 11: Set Up
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. ■... -
Page 12: Putting On Waist Pad
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... -
Page 13: Fuel
OIL or ISO EGC GRADE) • Do not use BIA or TCW (2-stroke water- cooling type) mixed oil. ■ RECOMMENDED MIXING RATIO GASOLINE 50:OIL 1 (when using ZENOAH genuine oil) 50:1 MIXING CHART GASOLINE gal. 2-CYCLE OIL fl.oz 2.6 GASOLINE... -
Page 14: Fueling The Unit
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. -
Page 15: Operation
Operation WARNING • Keep bystanders and animals at least 50 feet (15m) away from the operating point. 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. -
Page 16: Stopping Engine
Operation ■ STOPPING ENGINE 1. Release the throttle lever and run the engine for a half minute. 2. Shift the ignition switch to the STOP position. NOTE • Except for an emergency, avoid stopping the engine while pulling the throttle lever. ■... -
Page 17: Optional Blade Usage
Optional Blade Usage OPT1 CUTTER APPLICATION CHART BC3401DL BC4401DW Under growth Heavy weeds Light weeds Grass OPT2 Saw blade 8-teeth blade 6298-11313 6298-15343 10” 10” ■ CHOOSE THE BLADE Choose a suitable recommended cutting attachment according to the object to be cut. -
Page 18: Starting Engine
Optional Blade Usage OPT3 OPT4 FOR BC3401DL OPT5 OPT6 18 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... -
Page 19: Operation
Optional Blade Usage OPT7 OPT8 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. -
Page 20: Controlling Blade Bounce
Optional Blade Usage 20 WARNING ■ 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. -
Page 21: Maintenance
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. -
Page 22: Maintenance
Maintenance Maintenance, replacement, or repair of the emission control device and systems may be performed by any non-road engine repair establishment or individual. WARNING • Always be sure to stop the engine before inspecting the brushcutter for problems or performing maintenance. •... -
Page 23: Fuel Filter
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. -
Page 24: Intake Air Cooling Vent
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. •... -
Page 25: Parts List
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. - Page 26 Parts List Fig.1 DRIVE UNIT BC3401DL (S/N 60200000 and up) 26 ...
- Page 27 Fig.1 DRIVE UNIT BC3401DL Key# Description HOUSING JOINT ABSORBER-F ABSORBER-R BOLT BOLT BOLT DRUM, clutch 848-B81-51A1 BEARING SNAPRING SNAPRING BOLT PIPE COMP. 1440x26xT2 GRIP DRIVE SHAFT 1480x8 Spline ø8x9 teeth HANGER ASS'Y • HANGER • CLAMP • SPACER • SCREW LEVER ASS'Y 848-8R2-0352 •...
- Page 28 Parts List Fig.2 ENGINE UNIT BC3401DL (S/N 60200000 and up) 28 ...
- Page 29 Fig.2 ENGINE UNIT BC3401DL Key# Description CYLINDER BOLT GASKET, base CRANKCASE COMP. • PIN GUARD SCREW GASKET, case BEARING OIL SEAL OIL SEAL BOLT SNAP RING PISTON RING RING BEARING WASHER CRANKSHAFT COMP. SHOE, clutch SPRING SCREW WASHER WASHER ROTOR COIL ASS'Y •...
- Page 30 Parts List Fig.3 DRIVE UNIT BC4401DW (S/N 60200000 and up) 30 ...
- Page 31 Fig.3 DRIVE UNIT BC4401DW Key# Description HOUSING JOINT ABSORBER-F ABSORBER-R BOLT BOLT BOLT DRUM, clutch 848-B81-51A1 BEARING SNAPRING SNAPRING BOLT PIPE COMP. 1440x26xT2.5 DRIVE SHAFT 1479x8 Spline ø8x9 teeth HANGER ASS'Y • HANGER • CLAMP • SPACER • SCREW BRACKET ASS'Y •...
- Page 32 Parts List Fig.4 ENGINE UNIT BC4401DW (S/N 60200000 and up) 32 ...
- Page 33 Fig.4 ENGINE UNIT BC4401DW Key# Description CYLINDER BOLT GASKET, base CRANKCASE COMP. • PIN GUARD SCREW GASKET, case BEARING OIL SEAL OIL SEAL BOLT SNAP RING PISTON RING RING BEARING WASHER CRANKSHAFT COMP. SHOE, clutch SPRING SCREW WASHER WASHER ROTOR COIL ASS'Y •...
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Page 34: Limited Warranty
ZENOAH AMERICA, INC. AT (770)-381-5147. IMPORTANT: YOU WILL RECEIVE A WARRANTY REGISTRATION CARD AT TIME OF PURCHASE.PLEASE FILL OUT THE CARD AND SEND IT TO RedMax / KOMATSU ZENOAH AMERICA WITHIN SEVEN (7) DAYS. BE SURE TO KEEP A COPY FOR YOUR RECORDS. - Page 35 KOMATSU ZENOAH AMERICA, INC. au (770)-381-5147 Note importante: vous recevrez une carte d'enregistrement de garantie au moment de l'achat. Veuillez la remplir et l'adresser à RedMax / KOMATSU ZENOAH AMERICA sous sept (7) jours en prenant soin de conserver une copie pour vous.
- Page 36 KOMATSU ZENOAH AMERICA INC. 4344 Shackleford Road Suite 500 Norcross, Georgia 30093 © Printed in Japan...