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BFT121F-TE


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T     ECHNICAL INFORMATION
    Models No.                  BFT121F                                                                            L
                                                                                                                             PRODUCT
                                                                                                                               P 1 / 18

    Description                 Cordless Screwdriver 12V
CONCEPTION AND MAIN APPLICATIONS
   The above model with built-in job light is the 12V version
   of BFT120F for getting high turning angle in the fastening
   with soft joint.                                                                                                            H




                                                                                                         W


                                                                                                  Dimensions : mm ( " )
                                                                                                   w/ 3.3 Ah battery w/ 2.0 Ah battery
                                                                                     Length ( L )             174 (6-7/8)
                                                                                     Width ( W )               71 (2-13/16)
                                                                                     Height ( H )   288 (11-11/32)       265 (10-7/16)
 Specification
                   Type of cell                                              NiMH
    Battery        Voltage : V                                               12.0
                   Capacity : Ah                                             2.0 / 3.3
    No load speed : min-1 = rpm                                           340
    Driving shank : mm ( " )                                           6.35 (1/4) Hex
    Fastening torque : N.m (in.lbs)                               5 - 12 (44.3 - 106)
    LED Job light                                                          Yes
    Electric brake                                                         Yes
    Torque adjustment                                      Yes (possible to adjust with adjust grip)
    Soft starter                                                           Yes
    Reverse switch                                                         Yes
                                                             1.5 (3.3) with 2.0 Ah battery
    Net Weight : Kg (lbs)
                                                             1.7 (3.9) with 3.3 Ah battery



 Standard equipment
   * Adjust grip for pre-setting torque ............................... 1 pc. (only for Italy and USA.)
   * Protector ..................................................................... 1 pc. (only for Germany)


   < Note > The standard equipment for the tool shown may differ from country to country.


 Optional       accessories
   * Battery BH1220 12V, 2.0Ah                                                        * Protectors (red, blue, yellow)
   * Battery BH1233 12V, 3.3Ah                                                        * Adjust grip for pre-setting torque
   * Charger DC24SA                                                                   * Grip base set
   * Charger DC14SA                                                                   * Grip 37
   * Automatic refreshing adapter ADP03
                                                                                                                      P 2 / 18
Features     and benefits

                                                          BFT121F

                   *Higher Torque Accuracy                               Light Tool Weight
               Torque accuracy:                                   100g lighter than tools of 6796D series.
               Plus or minus 10%, Plus or minus 3 sigma,
               Cm is more than or equal to 1.67




                                                            Bit sleeve, coated with          D28 type motor with the
        Adjust grip                                         rubber for protection            following features.
  Without using this adjust grip,                           the materials from scratch,      * Externally accessible brushes.
   it is impossible to adjust the                           etc.                             * Replaceable armature
  fastening torque.                                                                          * Uses compact and light, yet
                                                                                               powerful rear earth magnet


  Front plate (only for Germany)
  Without removing this
  front plate, it is impossible                                                           Indication lamp and beeper inform
  to change the fastening                                                                 operator of the following matters
  torque which has been                                                                   * Sufficient fastening : Green on
  previously set by factory.                                                              * Insufficient fastening : Red on
                                                                                                                     and beeping
                             LED Job Light                                                * Warning that remaining battery
                                                                                            power is little. : Red on and beeping
                                                                                          * Too little battery power to rotate
                   Conveniently located                                                     the machine. : Motor stops with
                   push button type reverse switch                                                           Red on and beeping
                                                                                          Refer to Page 3 in detail.
                   ON-OFF switch with
                   the following features.
                   * Delayed re-starter for                                          Colored aluminum plate for
                     reducing deviation by                                           distinction of the torque range
                     unintentional over tightening.
                   * Soft start for suppressing the
                     starting shock.
                     Starts 0.2 sec. after pulling
                     switch trigger.

                                                      Anti-slip dimpled grip
                                                                                    High turning angle in soft joint,
                                                      The body, assembled with      with Battery BH1233
                                                      machine screws for easy       12V, 3.3Ah .
                                                      repairing

       Protector
       By mounting this protector to                  Auto stop system
       BFT120 or BFT121, the materials                by sensing battery's
       (such as automobile's body on the              power drop.
       assembling line) can be protected
       from the scratch, etc.
Features     and benefits                                                                                         P 3 / 18

 Indication lamp, buzzer and auto stop system
 In case of no trouble on the result of work and on the machine, the lamp and beeper inform of the following matters.


   Lamp              Beeper         Auto stop         What the lamp, beeper and auto stop system inform of.
  Lights up in the A series of                          Under testing the function of indication
  order of green, short beeps                           lamp and beeper, when installing battery.
  red and white.
                                                       Finish of single fastening process with reaching
                                                       the pre-set fastening torque.
  Lights up                                            At this time, clutch works and delayed restarter
                    No beep            ON
  in green.                                            keeps the motor still for one second after finishing
                                                       sufficient fastening process, to avoid the unintentional
                                                       over-tightening which will occur by mis-operation
                                                       of switch trigger.




 In case of trouble on the result of work, or on the machine, the lamp and buzzer inform of the following matters.

                                                   What the lamp, beeper and
   Lamp            Beeper        Auto stop         auto stop system inform of.               Action to be taken
                                                    Insufficiently finished single     Try again to fasten the screw
  Lights up        A long                           fastening process, without         or bolt.
  in red.          beep                             reaching the pre-set fastening     It is important to pull the switch
                                                    torque.                            trigger on, until clutch works.

                                                    Remaining battery                Motor rotates on, however, it is
                  A series                          power is little.                 recommended to replace with
  Flickers in red of long                                                            the fully charged battery in the
  slowly.         beeps                                                              appropriate time.


                                                    Impossible to fasten screws        Immediately replace the
                   A long                           or bolts with the pre-set          old battery with the fully
  Lights up        beep             ON
                                                    fastening torque any more.         charged battery.
  in red.


  Lights up in     A series                         Warning of abnormal drop of        Motor does not rotate in spite of
  red and green    of long                          battery voltage for some           pulling switch trigger.
                                    ON
  alternately.     beeps                            reason.                            The warning by lamp and buzzer
                                                                                       stops with removing battery.

                   A series                         Warning of over heat on            Remove the battery immediately
  Flickers                                          controller.                        and cool the machine down.
                   of short         ON
  in red
                   beeps
  quickly.


  Flickers in                                       Trouble on clutch system.          Ask MAKITA authorized or
                   A series
  red and green                                                                        factory service center for repair
                   of long          ON
  alternately.                                                                         or adjustment.
                   beeps

                                                    The battery has been installed      Release the switch trigger.
  Lights up in     A series                         with keeping switch trigger
  red and green    of long          ON              pulled.
  alternately.     beeps
Features    and benefits                                                                                           P 4 / 18

                    Identification Plate for BFT120F Series Models
 BFT120F Series Models (BFT120, BFT120F, and BFT121F ) are equipped with
 Identification Plates for easy control in your factory.
 Even if the name plates would fall off the machines, or even if it is too difficult to read the indications from the worn
 name plates, BFT120F Series Models can be easily identified from the identification plate illustrated below.

                                         Colour of the plate : Red

                                                                *****           Identification number with 5 digits;
                                                                5 - 12          With this 5 digits, it can be
                                                                 Nm             identified, (for example) to which
                                                                                manufacturing section the relative
                                                                                machine is employed.
                                                                                The identification number is put
                                                            Torque range        by MAKITA, independent of the
                                                                                serial numbers.


                                                    Model BFT120, BFT120F and BFT121F are equipped with
                                                    the above illustrated identification plate.



                            How to control the BFL080F series models with the identification plate

 BFT120F series models are employed in some factory, for example , as listed below.

                     Employed                    Indications on the identification plate                       Employed
  Manufacturing      model               Torque range                  Identification No.                      quantity
  section A          BFT120               5 - 12N.m        00001 - 00250                                        250
                     BFT121F              5 - 12N.m        00123 - 00275                                        153

                     Employed                    Indications on the identification plate                       Employed
 Manufacturing       model               Torque range                  Identification No.                      quantity
 section B           BFT120               5 - 12N.m        00251 - 00300                                           50
                     BFT120F              5 - 12N.m        10300 - 10449, 00899, 15689,                           152

                     Employed                    Indications on the identification plate                       Employed
 Manufacturing       model               Torque range                  Identification No.                      quantity
 section C           BFT121F              5 - 12N.m        00030 - 00119, 00830 - 00836,                           97
                     BFT120F              5 - 12N.m        50025 - 50099, 00830 - 00836,        15689,             83

       You can identify the model No. and to which manufacturing section the relative machine belongs, from the
       indications on the plates.

        BFT121F or BFT120 employed in           BFT120F employed in                     BFL121F employed in
        manufacturing section A                 manufacturing section B                 manufacturing section C
                                                                                        or BFT120 in manufacturing
                                                                                        section A

                   00237                               00899                                     00117
                   5 - 12                              5 - 12                                    5 - 12
                    Nm                                  Nm                                        Nm




                            Identify the products with the following points in these cases.
                             * Battery's voltage, 9.6V or 12V
                             * LED job light
 .
Features                 and benefits
                  Limit capacity table
                  The capacity of the battery equipped for test is 2.0Ah
                  Model BFT120 / F                                                                                      Model BFT121F
                                                                                                                                                    P 5 / 18




                  360



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