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GB-7

BK3420FL-EZ

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from rotating cutting attachment 
and hot surfaces.

6.  Never  touch  the  muffler,  spark 

plug,  or  other  metallic  parts  of 
the engine while the engine is in 
operation  or  immediately  after 
shutting down the engine. Doing 
so could result in serious burns 
or electrical shock.

 IF SOMEONE COMES

1.  Guard against hazardous situa-

tions at all times. Warn adults to 
keep  pets  and  children  away 
from the area. Be careful if you 
are approached. Injury may re-
sult from flying debris.

2.  If someone calls out or otherwise 

interrupts you while working, al-
ways be sure to turn off the en-
gine before turning around.

 MAINTENANCE

1.  In order to maintain your product 

in proper working order, perform 
the  maintenance  and  checking 
operations  described  in  the 
manual at regular intervals.

2.  Always  be  sure  to  turn  off  the 

engine and disconnect the spark 
plug wire before performing any 
maintenance or checking proce-
dures.

WARNING

The  metallic  parts  reach  high 
temperatures  immediately  after 
stopping the engine.

3.  When  replacing  the  cutting  at-

tachment  or  any  other  part,  or 
when  replacing  the  oil  or  any 
lubricant, always be sure to 

use 

only  ZENOAH    products  or 
products  which  have  been 
certified  by  ZENOAH  for  use 
with the ZENOAH product

.

4.  In the event that any part 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 ZENOAH 
authorized  servicing  dealer  for 
assistance.

5.  Do not use any accessory or at-

tachment other than those bear-
ing the ZENOAH mark and rec-

ommended for the unit.

6.  Under no circumstances should 

you ever take apart the product 
or  alter  it  in  any  way.  Doing  so 
might  result  in  the  product  be-
coming damaged during opera-
tion  or  the  product  becoming 
unable to operate properly.

 HANDLING FUEL

1.  The  engine  of  the    ZENOAH 

product is designed to run on a 
mixed fuel, which contains high-
ly  flammable  gasoline.  Never 
store cans of fuel or refill the tank 
of  the  unit  in  any  place  where 
there is a boiler, stove, wood fire, 
electrical sparks, welding sparks, 
or any other source of heat or fire 
which might ignite the fuel.

2.  Never smoke while operating the 

unit or refilling its fuel tank.

3.  When  refilling  the  tank,  always 

turn off the engine and allow it to 
cool  down.  Take  a  careful  look 
around to make sure that there 
are  no  sparks  or  open  flames 
anywhere nearby before refuel-
ing.

4.  Wipe spilled fuel completely us-

ing a dry rag if any fuel spillage 
occurs during refueling.

5.  After  refueling,  screw  the  fuel 

cap  back  tightly  onto  the  fuel 
tank and then carry the unit to a 
spot  3  m  or  more  away  from 
where  it  was  refueled  before 
turning on the engine.

 TRANSPORTATION

1.  When hand-carrying the product, 

cover  over  the  cutting  part  if 
necessary,  lift  up  the  product 
and carry it paying attention to 
the blade.

2.  Never transport the product over 

rough roads over long distances 
by  vehicle  without  removing  all 
fuel from the fuel tank. If doing 
so, fuel might leak from the tank 
during transport.

WARNING

 CONTROLLING BLADE 

THRUST

Blade  thrust  can  cause  serious 
personal  injury.  Carefully  study 
this  section.  It  is  important  that 

 5. For safe operation

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12.9.21   1:24:13 PM

Summary of Contents for BK3420FL-EZ

Page 1: ...L BRUSHCUTTER 115 49 27 38 207 Before using our products please read this manual carefully to understand the proper use of your unit Keep this manual handy G B Original Language 01 BK3420FL EZ_GB_207...

Page 2: ...3 Wire clamp 24 Engine stopping switch 25 Flexible shaft SAFETY FIRST Instructions contained in warnings within this manual marked with a symbol concern critical points which must be taken into consid...

Page 3: ...or s view Engine Displacement cc 33 6 Fuel Used Lubricating oil mixed gasoline Lubricating Oil Used 2 stroke engine oil Mixing rate GASOLINE 25 OIL 1 When using market oil JASO FB grade oil or ISO L E...

Page 4: ...oduct to order new labels and affix them in the re quired location s Warning Attention 1 Read owner s manual before operating this machine 2 Wear head eye and ear protection 3 Don t remove the debris...

Page 5: ...hen 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 ga...

Page 6: ...rn off the engine and check the whole unit Do not use it until the trouble has been prop erly corrected 5 Keep all parts of your body away NOTE Check and follow the local regula tions as to sound leve...

Page 7: ...tachment other than those bear ing the ZENOAH mark and rec ommended for the unit 6 Under no circumstances should you ever take apart the product or alter it in any way Doing so might result in the pro...

Page 8: ...ss only Do not let the blade contact materials it cannot cut such as hard woody vines and brush or rocks fences metal etc 3 Be extra prepared for blade thrust if you must cut where you cannot see the...

Page 9: ...the joint and fix the main pipe firmly Tightening torque 4 9 to 7 8 N m 0 5 0 8 kg m 5 Screw the throttle lever mounting screw and fasten it tightly 1 Screw M5xL18 5 Throttle lever 2 Clamping bolt M5x...

Page 10: ...G Do not use this machine without the debris guard Fit the top of the debris guard to the gear case install the debris guard on the main pipe with the accessory clamp and tighten the debris guard even...

Page 11: ...e outer holder 2 Put the blade on the blade rest plate with the blade surface on which there is writing facing toward the gear case then fit the hole of the blade to the project ing part of the blade...

Page 12: ...t plate and the outer holder on the gear shaft correctly and stop their whirl with the accessory L shaped round rod 2 Screw the mounting bolt M7 left handed attached to the nylon cutter into the gear...

Page 13: ...ay be difficult to agitate depending on oil ingredients sufficient agita tion is necessary for the engine to last long Be care ful that if the agitation is insufficient there is an in creased danger o...

Page 14: ...ORTANT If you repeat the starting operation while leaving the choke closed the electrodes of the spark plug might become wet and prevent starting If this happens try the starting operation again after...

Page 15: ...stones etc might damage the blade and driving unit or bend the main pipe SHOULDERING THE MAIN BODY OF THE UNIT 1 Start the engine and allow it to warm up Then return the throttle lever to the idling p...

Page 16: ...ause grass weeds or twigs to be caught up in the blade It also wears down the clutch more quickly SELECTION OF BLADE WARNING When cutting branches and plants always use a saw blade and never use an ei...

Page 17: ...ipe has been damaged Replace Broken or cracked Repair or replace The connecting part has become loose Repair or replace Cut off cracked discolored or deformed Replace The shaft has become loose Repair...

Page 18: ...ORTANT The idling engine speed is adjusted when this prod uct is shipped from the factory but it might need to be readjusted according to changes in operation conditions e g changes in the stability o...

Page 19: ...r the fuel filter is damaged replace it with a new one Part No Z4551 85100 IMPORTANT If the fuel filter is clogged the engine rotation speed might not increase or rotation fluctuations might occur 1 R...

Page 20: ...life span of the machine Be sure to check the blade before or after using the machine If anything is wrong with the blade replace it with a new one or sharpen it again MAINTENANCE BEFORE LONG TERM STO...

Page 21: ...n the choke open the throttle full open and pull out the rope repeatedly page 14 Clean the muffler page 18 Clean the electrodes or replace the plug page 19 Replace it with normal fuel page 13 Clean th...

Page 22: ...PART ANY REPLACEMENT PART THAT IS EQUIVALENT IN PERFORMANCE AND DURABILITY MAY BE USED IN NON WARRANTY MAINTENANCE OR REPAIRS AND SHALL NOT REDUCE THE WARRANTY OBLIGATION OF THE COMPANY THE COMPANY I...

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