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Zenoah BK4310FL-S - page 1
BK3410FL / BK3410FL-S BK4310FL / BK4310FL-S BRUSHCUTTERS 115 37 95-79 (006) OWNER’S MANUAL •B efore using our brushcutter, please read this manual carefully to understand the proper use of your unit. • Keep this manual handy. Caution ...
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Zenoah BK4310FL-S - page 2
2 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. ■ NOTES ON TYPES OF WARNINGS IN THE MANUAL T ...
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Zenoah BK4310FL-S - page 3
3 1. W arning labels on the machine (1) Read owner’s manual before operating this machine. (2) Wear head, eye and ear protection. (3) Wear foot protection. (4) Wear gloves. (5) Beware of thrown objects. (6) Warning / Attention (7) Keep all children, bystanders and helpers 15 meters away from the machine. If warning label peels off or becomes soil ...
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Zenoah BK4310FL-S - page 4
4 For safe operation and maintenance, symbols are carved in relief on the machine. According to these indications, please be careful not to take a mistake. (a) The port to refuel the "MIX GASOLINE" Position: FUEL TANK CAP (b) The direction to close the choke Position: AIR CLEANER COVER (c) The direction to open the choke Position: AIR CLE ...
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Zenoah BK4310FL-S - page 5
5 2. Never use the product, (1) When the ground is slippery or when you can’t maintain a steady posture. (2) At night, at times of heavy fog, or at any other times when your field of vision might be limited and it would be difficult to gain a clear view of the working area. (3) During rain storms, during lightning storms, at times of strong or ga ...
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Zenoah BK4310FL-S - page 6
6 to sound level and hours of operations for the product. ■ BEFORE STARTING THE ENGINE 1. The area within a perimeter of 15 m of the person using the product should be considered a hazardous area into which no one should enter. If necessary, yellow warning rope, warning signs should be placed around the perimeter of the area. When work is to be p ...
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Zenoah BK4310FL-S - page 7
7 serious burns or electrical shock. ■ IF SOMEONE COMES 1. Guard against hazardous situations at all times. Warn adults to keep pets and children away from the area. Be careful if you are approached. Injury may result from flying debris. 2. If someone calls out or otherwise interrupts you while working, always be sure to turn off the engine befor ...
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Zenoah BK4310FL-S - page 8
8 This contact causes the blade to stop for an instant and then suddenly move or ”bounce” away from the object that was hit. The operator can lose control of the unit and the blade can cause serious personal injury to the operator or any person nearby if the blade contacts any part of the body. 2. How you can reduce the chance of blade thrust: ...
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Zenoah BK4310FL-S - page 9
9 insert the liner into the clutch housing, being careful to make sure that the hole on the end of the liner is facing directly upwards. When the hole reaches a point directly below the stopper, you will hear a clicking sound as the stopper moves into the hole to fix the liner into place. (SE4) (1) Clutch housing (2) Stopper (3) Angular hole (4) Ho ...
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Zenoah BK4310FL-S - page 10
10 2. Attach the lever as shown in the picture and screw it securely. (SE6) (1) Throttle lever (2) Hole (3) Throttle cable (4) Screw (5) Nut ■ ADJUSTING THROTTLE CABLE • Proper play of the throttle cable is 1–2mm. Place the throttle lever to the lowest speed position (i.e. fully released status). Pull the throttle cable lightly with fingers t ...
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Zenoah BK4310FL-S - page 11
11 (Note that this is a left-turning screw.) (1) Bar (2) Holder B (3) Holder A 2. Attach the cover (SE11,(11)) and fix it with screw. 3. Insert blade between cutter holder A and cutter holder B. (SE11) 4. Attach cover and spring washer. (SE11) 5. Screw the bolt to fix them into place. (SE11) Tightening torque: 14.7~19.6 N-m (150~200kgf-m) (1) Bolt ...
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Zenoah BK4310FL-S - page 12
12 6. Fuel • Gasoline is very flammable. Avoid smoking or bringing any flame or sparks near fuel. •W ipe up all spills before starting the engine. • Make sure to stop the engine and allow it cool before refueling the unit. • Keep open flames away from the area where fuel is handled or stored. • Never use oil for 4 cycle engine use or wate ...
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Zenoah BK4310FL-S - page 13
13 • Keep the throttle lever set always to the idling position when starting or stopping the engine, or moving the machine. If the throttle lever is set to any position other than the idling position, the blade will begin to rotate, causing danger. • The engine might start after a delay. Hold the unit until it starts. • Before starting the en ...
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Zenoah BK4310FL-S - page 14
14 Do not pull out the starter rope up to its end, and do not let the knob jump out of the right hand otherwise it may not return to its original position. 5. After the engine has started, open the choke gradually. 6. Allow the engine to run for 2 to 3 minutes to warm up. ■ STOPPING THE ENGINE • Stop the engine immediately in an emergency. • ...
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Zenoah BK4310FL-S - page 15
15 (1) Area of the blade where the machine is prone to blade thrust • When using this machine, read and obey the precautions and instructions described in “Safety precautions” (pages 5 to 8) of this manual. • Before shouldering the main body of the brushcutter, return the throttle lever to the idling position and make sure the blade has sto ...
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Zenoah BK4310FL-S - page 16
16 7. Operation 4. Use a slow, deliberate action to cut heavy 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 ...
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Zenoah BK4310FL-S - page 17
17 of the spool. 4. Wind up the line in the correct direction as indicated on the spool. 5. Hook each end of the line in the slot on the edge of the spool, and then put the ends through the eyelets on the housing. Make sure that the spring and the washers are in place. 6. While holding the spool against the housing, pull the line ends to release th ...
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Zenoah BK4310FL-S - page 18
18 8. Maintenance ■ FUEL FILTER When you mount or dismount the fuel filter, be careful not to damage the rubber packing. A damaged rubber packing or insufficient mounting of the fuel filter will cause fuel to leak. Check how heavily the fuel filter is clogged from the fueling port of the fuel tank every 25 hours of use. If the fuel filter is clog ...
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Zenoah BK4310FL-S - page 19
19 8. Maintenance on the side where the main pipe is installed, and mount the plug in its original position. 4. Wipe off the pushed-out grease, and mount the blade and the blade rest plate in their original positions. (1) Plug (2) Blade rest plate ■ FLEXIBLE SHAFT Apply grease to the flexible shaft every 25 hours use. 1. Take out the flexible sha ...
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Zenoah BK4310FL-S - page 20
20 blade, and keep the machine in a safe place away from heat and humidity. (1) Tank cap (2) Fuel tank The engine revolution speed increases when you turn the idling adjustment screw clockwise, and decreases when you turn it counterclockwise. Standard idling revolution speed: 2,300 to 2,700 rpm (1) Idling adjustment screw (2) Rotation increases. (3 ...
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Zenoah BK4310FL-S - page 21
21 9. T rouble shooting 10. Disposal • When the symptoms in the left column do not improve after taking the measures in the right column, please contact the shop where you bought this product. • For the measures marked with ✩ , please buy ZENOAH’ s genuine parts at the shop where you bought this product. PHENOMENON The engine does not start ...
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Zenoah BK4310FL-S - page 22
22 Should any failure occur on the product under normal operating conditions within the applicable warranty period, the failed part will be replaced or repaired free of charge by a ZENOAH authorized dealer. WARRANTY PERIOD: Six (6) months after purchased by end-user subject to 12 months from produced month. (30 days if used for rental purpose) THE ...
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Zenoah BK4310FL-S - page 23
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Zenoah BK4310FL-S - page 24
1-9, Minamidai, Kawagoe-city , Saitama, 350-1 165 Japan To Dealer: Please complete the following form at time of sale. Product Model: ZENOAH BK3410FL BK4310FL BK3410FL-S BK4310FL-S Date of Purchase: D / M / Y Purchaser: Dealer: Name: Name: Address/Phone: Address/Phone: Equipment No.: Engine No.: Use: Private Professional Rental To Purchaser: When y ...
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