Makita BDF456 Manual

P 1/10

Model No.

Description

CONCEPT AND MAIN APPLICATIONS

Specification

Dimensions: mm (")

Width (W)

Height (H)

Length (L) 192 (7-9/16)

79 (3-1/8)

234 (9-1/4)*2

251 (9-7/8)*3

BDF456

Cordless Driver Drill

Battery

Capacity of drill chuck: mm (")

Capacity: mm (")

Lock torque: N.m (in.lbs)

Electric brake

Variable speed control

Mechanical speed control

Reversing switch

Max. fastening

torque: N.m (in.lbs)

Torque setting

Steel

Wood

Soft joint

Hard joint

No load speed:

min-1=rpm

Cell

Voltage: V

Capacity: Ah

High

Standard equipment

Optional accessories

Note: The standard equipment for the tool

shown above may differ by country.

Fast charger DC18RA

Charger DC18SD

Charger DC24SC

Automotive Charger DC18SE

Battery BL1815

Battery BL1830

Drill bits for wood

Drill bits for steel

Belt clip

Bit holder

+ - bit 2-45 ........ 1 pc

Belt clip ............ 1 pc

Weight according to

EPTA-Procedure 01/2003*4: kg (lbs)

Low

Max output: W

Li-ion

Charging time (approx.):

min.

15/ 22

with DC18RA

1.3/ 3.0

Yes

Yes (2 speed)

Yes

1.5 (3.3)*2/ 1.7 (3.8)*3

13 (1/2)

38 (1-1/2)

16 stage + drill mode

Clutch torque setting: N.m (in.lbs) 1.0 - 5.0 (9 - 44)

54 (480)

36 (320)

50 (440)

0 - 1,500

0 - 400

1.5 (1/16) - 13 (1/2)

300

Model BDF456 is the upgraded version of model BDF452, featuring:

More compact and lightweight design than BDF452

More comfortable operation will be provided by re-designed ergonomic grip

Compatible with the 18V Li-ion batteries equipped with the Battery protection circuit

designed to protect the battery from damages due to overdischarge, high temperature

or overload current

This product is available in the following variations.

All models also include the accessories listed below in "Standard equipment".

Housing

color

*2: with Battery BL1815

*3: with Battery BL1830

BDF456RFE

BDF456RFEW DC18RA

Model No. Type Quantity Charger Plastic

carrying case

Battery

cover

Yes

Battery

BDF456Z

BL1815 DC18RA Yes

BDF456RHE

BL1830

No No

BDF456SHE DC18SD Yes2

BL1815 1

BDF456SHEW

BDF456ZW

Makita blue

white

Makita blue

white

No No

Makita blue

whiteBDF456RHEW

*2 with Battery BL1815, *3 with Battery BL1830

*4 with the lightest battery available for the model

PRODUCT

LED job light

(with Battery BL1815)

TECHNICAL INFORMATION

OFFICIAL USE

for ASC & Sales Shop

P2/10

Repair

CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.

[1] NECESSARY REPAIRING TOOLS

[2] LUBRICATIONS

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Drill chuck

Code No.

1R359

Description Use for

Hex wrench 10 Removing / Assembling drill chuck

Drill chuck removing tool

Removing Drill chuck

(Use this tool if Drill chuck cannot be removed by the method

described in “ [3]-1. Drill chuck disassembling”.)

DISASSEMBLING

Lubrications are not required as Gear section is replaced as a factory-lubricated gear unit.

(1) Set Machine and Repairing tools. (Figs. 1, 2, 3)

CORRECT WRONG

Fig. 3

Fig. 1 Fig. 2

Note:

Use Impact driver to unscrew

M6 x 22 Flat head screw if it

could not be removed manually.

Open Keyless drill chuck fully and

remove M6 x 22 Flat head screw

by turning it clockwise.

M6 x 22 Flat head screw

F/R Change lever

Set Speed change lever

to Low speed mode

indicated by "1".

Set Change ring

to Drill mode.

Speed change lever

Change ring

Set F/R Change lever to

Reverse (counterclockwise)

rotation.

Attach battery.

Setting of Hex wrench 10

Vise

Grip flat surfaces

of Hex wrench 10.

Hex wrench 10

Hex wrench 10,

viewed from side [A]

Vise

Grip the long end.

[A]

Do not grip edges of

Hex wrench.

Do not grip

the short end.

P3/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Drill chuck (cont.)

DISASSEMBLING

(2) Remove Drill chuck. (Fig. 4)

*Note: The rotational direction is viewed from operator.

1. Grip Hex wrench 10 with Drill chuck and hold Machine.

Important:

Be sure to hold the grip of Machine tightly with sufficient

counterclockwise* force against clockwise* recoil force

of Machine.

2. Pull Switch trigger slowly.

3. Spindle rotates counterclockwise* and consequently

Drill chuck is removed from spindle.

Hex wrench 10

Fig. 4

ASSEMBLING

Fig. 5 Fig. 6

end of the threaded

portion of Spindle

Drill chuck

(1) Set the machine. (Figs. 5, 6)

(2) Set Hex wrench 10 to vise as described in Fig. 3.

Turn Drill chuck clockwise until it sits on

the end of the threaded portion of Spindle.

F/R Change lever

Set Speed change lever

to Low speed mode

indicated by "1".

Set Change ring

to Drill mode.

Speed change lever

Change ring

Set F/R Change lever to

Forward (clockwise) rotation.

Attach battery.

Counterclockwise* force

to be applied by operator

Clockwise* recoil force

of Machine

P4/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Drill chuck (cont.)

(3) Tighten Drill chuck. (Fig. 7)

ASSEMBLING

DISASSEMBLING

Hex wrench 10

Fig. 7

Fig. 8

M6x22 Flat head screw

4. Open Keyless drill chuck fully,

then drive M6x22 Flat head screw

by turning counterclockwise*

with Impact driver.

[3]-2. Gear assembly and Motor section

Rear cover

1. Unscrew two 3x16 Tapping screws,

then remove Rear cover.

2. Pull Carbon brushes in the direction of the arrow

after shifting the end of each Torsion spring from

the top of Carbon brushes.

Carbon brushes

(1) First, remove Drill chuck. (Figs. 1, 2, 3, 4)

(2) Then remove Rear cover and disconnect Carbon brushes from Armature’s Commutator

before dismantling Housing set. (Fig. 8)

Counterclockwise

recoil force

of Machine

*Note: The rotational direction is viewed from operator

1. Grip Hex wrench 10 with Drill chuck and hold Machine.

Important:

Be sure to hold the grip of Machine tightly with sufficient

clockwise* force against counterclockwise* recoil force

of Machine.

2. Pull Switch trigger slowly to turn Spindle clockwise*.

3. Drill chuck is tightened and consequently Spindle is locked.

Clockwise* force

to be applied by

operator

Note:

Apply adhesive (ThreeBond 1321B/

1342 or Locktite 242 to threaded

portion) when re-using removed

M6x22 Flat head screw.

Shift the end of each

Torsion spring to the

concave portion of

Brush holder.

P5/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-2. Gear assembly and Motor section

(3) Disassemble Gear assembly and Motor section. (Fig. 9)

Fig. 9

DISASSEMBLING

3. Unscrew nine 3x16 Tapping screws,

then remove Housing (R).

4. Remove the assembly of

Motor section and Gear section.

Housing (R)

5. Remove Speed change lever,

then separate Gear assembly

from Motor section.

6. Remove Armature along with Yoke unit

from Brush holder complete.

Speed change lever

Gear assembly

Brush holder

complete

Armature

Yoke unit

Armature

7. Pull Armature from Yoke unit.

Yoke unit

Motor section

P6/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-2. Gear assembly and Motor section (cont.)

(4) Insert Armature into Yoke unit carefully and connect Motor section to Gear assembly. (Fig. 11)

(3) Put Leaf spring in place on the inside of Housing (L). (Fig. 10)

Fig. 11

Fig. 10

ASSEMBLING

1. Insert Commutator end

into Brush holder complete.

3. Mount Speed change lever to Gear assembly. (Refer to Fig. 14)

notch

Be sure to put Leaf spring

in place as drawn on the right.

Notch must be located on Armature

drive-end as above.

[Wrong][Correct]

Note: Be careful when inserting

Armature as fingers can

be pinched and injured.

[Wrong][Correct]

Be sure to hold Commutator portion as your fingers

can be pinched by Armature fun due to strong magnetic

force toward Yoke unit.

2. Connect Motor section to

Gear assembly by engaging

Armature gear with Planetary

gears in Gear assembly.

Leaf springHousing (L)

P7/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-2. Gear assembly and Motor section (cont.)

(5) Engage the notch of Yoke unit with the projection inside of Housing (L) when mounting the assembly of Gear section

and Motor section to Housing (L). (Fig. 12)

(6) Adjust the assembly of Motor section and the Gear section to the correct position in Housing (L)

so as to assemble Housing (R) to Housing (L) smoothly and exactly. (Fig. 13)

Fig. 12

Fig. 13

ASSEMBLING

projection for fitting

to the notch

Engage the notch of Yoke unit with the projection inside of Housing (L).

Housing (L) notch

Yoke unit

The flat portion of Brush holder must be at

exactly 90 degrees to the edge of Housing (L).

edge of

Housing (L)

Brush holder

complete

Housing (L)

flat portion of

Brush holder

complete

90 degrees Yoke unit must be mounted

within these ribs.

This rib must be fit in

the groove of Change ring.

P8/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-3. Speed change lever

Assemble Speed change lever to Gear assembly. (Fig. 14)

Mount F/R Change lever on Switch before assembling Housing (R) to Housing (L). (Fig. 15)

Fig. 14

Fig. 15

ASSEMBLING

1. Be sure to put two

Compression springs

on the back of

Speed change lever.

hook

2. Mount Speed change lever to

Gear assembly.

Note: Be sure to fit the hook of

Gear assembly in Speed change

lever.

Gear assembly

Low speed side

3. Set Speed change lever to either

Low speed side or High speed side.

High

speed side

Compression springs

[3]-4. F/R Change lever

F/R Change lever

projection

Engage the fork portion

with the projection of Switch.

fork portion

Circuit diagram

P9/10

Fig. D-1

White

Color index of lead wires' sheath

Black

Red

Yellow

Brush holder

complete

Switch

Terminal

Connector

FET (Field effect transistor)

LED

job light

Line filter

Line filter is not used

for some countries.

Wiring diagram

P10/10

Fig. D-3

Fig. D-2

Brush holder

complete

Lead wire wiring of Brush holder complete

Switch

Terminal

boss

Connector

Line filter

Wiring in Grip portion

Fix Lead wires with these

Lead wire holders.

Place Line filter here

if it is used.

Line filter

2. Assemble Receptacles to

Lead wires.

1. Pass Lead wires of Brush holder complete

through Line filter if it is used.

Receptacle

Line filter

Line filter is not used

for some countries.

LED job light

LED Lead wires must be

tight in this area indicated

by the dotted line.

Pass Lead wires to Switch

in this area.

Do not pass between

the boss and Housing wall.

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