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Makita BDF441 Technical Information
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Makita BDF441 Technical Information

Makita BDF441 Technical Information

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T
ECHNICAL INFORMATION
Model No.
Description
C
ONCEPT AND MAIN APPLICATIONS
Model BDF441 has been developed as an upgraded sister model of Model 6339D
with the design concept of "More Control and Maneuverability".
Features lightweight and compact design achieved by using 4-pole motor and
Lithium-ion battery as power unit.
Also features the same advantages as BDF440:
Rubberized soft grip contoured to perfectly fit operator hand and angled
to provide best tool balance
All metal gear construction
Job light with afterglow function
Single sleeve chuck
This new product will be available in the following variations.
Model No.
BDF441
BDF441SFE
(Li-ion 3.0Ah)
BDF441SFE3
S
pecification
Voltage: V
Battery
Capacity: Ah
Cell
Max output (W)
No load speed:
min-
=rpm
1
Capacity of drill chuck: mm (")
Capacity: mm (")
Torque setting
Max. clutch torque: N.m (ft.lbs)
Max. fastening
torque: N.m (ft.lbs)
Electric brake
Variable speed control
Reversing switch
Net weight*: kg (lbs)
*Includes battery BL1430
S
tandard equipment
Philips bit 2-45 ....... 2 pc
Bit holder................ 1 pc
Note: The standard equipment for the tool shown above may differ by country.
O
ptional accessories
Charger DC14SA
Charger DC14SC
BDF441
Cordless Driver Drill 13mm (1/2")
Battery
type
quantity
2
BL1430
2
DC18SC (Low voltage areas)
DC14SC (High voltage areas)
3
1st/ 2nd/ 3rd
0 - 300/ 0 - 600/ 0 - 1,700
1.5 - 13 (1/16 - 1/2)
Steel
Wood
16 stage + drill mode
1.0 - 5.9 (0.7 - 4.3)
Soft joint
Hard joint
Belt clip................... 1 pc
Grip assembly.......... 1 pc
Charger DC18SC
Charger DC24SA
Charger
DC18SC
14.4
3.0
Li-ion
265
13 (1/2)
50 (2)
32 (23.6)
70 (51.6)
Yes
Yes
Yes
2.0 (4.4)
+ Screw M4x12 .............. 2 pc
Plastic carrying case ..... 1 pc
Charger DC24SC
Li-ion battery BL1430
W
Dimensions: mm (")
Length (L)
Width (W)
Height (H)
Offered to
USA, Canada
Mexico, Panama
All countries except
those listed above
Assorted drill bits for wood
Assorted drill bits for metal
PRODUCT
P 1 / 7
L
H
238 (9-3/8)
78 (3-1/16)
255 (10)

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Summary of Contents for Makita BDF441

  • Page 1 Cordless Driver Drill 13mm (1/2") ONCEPT AND MAIN APPLICATIONS Model BDF441 has been developed as an upgraded sister model of Model 6339D with the design concept of "More Control and Maneuverability". Features lightweight and compact design achieved by using 4-pole motor and Lithium-ion battery as power unit.

  • Page 2: Necessary Repairing Tools

    P 2 / 7 epair Remove the battery cartridge from the machine for safety before repair/maintenance ! CAUTION: [1] NECESSARY REPAIRING TOOLS Description Use for Hex wrench 10 Removing /mounting Drill chuck Plastic hammer Removing Drill chuck [2] LUBRICATION It is not required to lubricate the gear section because the portion is replaced as a factory-lubricated gear unit. [3] DISASSEMBLY/ASSEMBLY [3] -1.
  • Page 3 P 3 / 7 epair [3] -2. Gear Assembly and Motor Section DISASSEMBLING 1) Remove Rear cover and take off Carbon brush from Brush holder complete. (Fig. 6) Fig. 6 [Brush holder section (View from A)] Carbon brush Torsion spring Carbon brush Rear cover Tapping screw...
  • Page 4 P 4 / 7 epair [3] -2. Gear Assembly and Motor Section (cont.) ASSEMBLING 1) Assemble the motor section. Note 1.Yoke unit is not reversible when assembled to Armature. Be sure to assemble so that the notch in Yoke unit is positioned on the drive-end of Armature as illustrated to left in Fig.
  • Page 5 P 5 / 7 epair [3] -2. Gear Assembly and Motor Section (cont.) ASSEMBLING 5) Assemble the unit of the Gear section and the Motor section as illustrated in Fig. 14. Fig. 14 With the projection on Housing L Yoke fit in the notch on Yoke, put Yoke unit between the ribs on Housing L.

  • Page 6: Circuit Diagram

    P 6 / 7 epair [3] -2. Gear Assembly and Motor Section (cont.) ASSEMBLING 6) Assemble Housing R to Housing L. (Fig. 7) 7) Install Carbon brush. (Fig. 15) 8) Mount Rear cover. Fig. 15 Brush holders viewed from A [Correct] [Wrong] Lead wire of Carbon brush...
  • Page 7 P 7 / 7 iring diagram [1] Lead Wires of Light Circuit Route the lead wires (red, black) to LED between the rib A and the rib B. Note: rib A 1. Make sure that the wires are tight in the circled portion. 2.

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