Makita BFT040F Manual

Models No.

Description

PRODUCT

CONCEPTION AND MAIN APPLICATIONS

Specification

Standard equipment

Optional accessories

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

P 1 / 15

TECHNICAL INFORMATION

BFT040F, BFT080F,

BFT122F

* Adjust grip for torque adjusting ......... 1 pc. (exclusively for Italy, USA, Canada)

* Protector ............................................. 1 pc. (exclusively for Germany)

For BFT040F, BFT080F and BFT122F

* Battery BH9020

* Battery BH9020A

* Battery BH9033

* Battery BH9033A

* Charger DC14SA

* Charger DC24SA

* Auto refresh adapter ADP03

* Protectors ( red, blue, yellow and clear )

* Adjust grip for torque adjusting

BFT040F, BFT080F, BFT122F,

BFT123F

Cordless Screwdrivers 9.6V

12V

BFT123F

Dimensions : mm ( " )

Width ( W )

Height

( H )

Length ( L )

Model No. BFT040F, BFT080F, BFT122F BFT123F

200 (7-7/8)

260 (10-1/4)

283 (11-1/8)

251 (9-7/8)

274 (10-3/4)

65 (2-9/16) 71 (2-13/16)

w/2.0Ah battery

w/3.3Ah battery

Specially developed for fastening works in assembling line.

Their common feature and benefits are as follows.

* New charging system

* Higher accuracy in fastening torque

* Superior handling

BHT123F (12V) is applicable to tightening at

high turning angle.

And their fastening torque range is as listed below.

Voltage

(V)

Model No.

BFT040F

BFT080F

BFT122F

BFT123F

Torque range in

hard joint : (N.m)

1 - 4

3 - 8

5 - 12

9.6

Identification

plate

Yellow

Blue

Red

BFT040F BFT080F

Ni-MH Ni-MH

BFT122F BFT123F

Model No.

Specifications

No load speed : rpm.= min-1

9.6

2.0 / 3.3

950 540 320 390

19.2 / 31.7

1.3 (2.9)

1.5 (3.3)

1.6 (3.5)

1.8 (4.0)

2.0 / 3.3

24.0 / 39.6

Battery

Soft joint

Hard joint

Driving shank : mm ( " )

Externally accessible brush

Net weight

: kg(lbs)

LED Job Light

Soft start

Type of cell

Voltage : V

Capacity : Ah

Energy : Wh

Torque range

: N.m (in.lbs)

w/ 2.0Ah battery

w/ 3.3Ah battery

1 - 4 (8.85 - 35.4) 3 - 8 (26.6 - 70.8) 5 - 12 (44.3 - 106)

5 - 12 (44.3 - 106)

1 - 3.5 (8.85 - 31.0) 3 - 6.5 (26.6 - 57.5) 5 - 10 (44.3 - 88.5)

Yes Yes

Hex 6.35 (1/4) Hex 6.35 (1/4)

For BFT123F

* Battery BH1220

* Battery BH1233

* Grip base set

* Grip 37

Repair P 2 / 15

< 1 > Lubrication

Apply MAKITA grease N. No.2 to the following portions designated by black triangle to protect

parts and product from unusual abrasion.

Gear case Internal gear 47

Lock plate

Motor

bracket

44 47 48 49 54

Position

No. Parts item

Carrier B

complete Shaft for 47 Spur gear 18

Portion

to be lubricated Amount : g

( oz )

Shaft for 49 Spur gear 19

47 Spur gear 18

Armature

Spur gear 9

Whole portion

Teeth portion which engages 49 spur gear.

49 Spur gear 19

1 (0.04)

< 2 > Disassembling bit holder section

< 3 > Assembling bit holder section

( 1 ) Remove ring spring. Then, flat washer 11, compression spring 13, sleeve and 2 pcs of steel 3 can be removed

from spindle. See Fig. 1.

( 1 ) Mount 2 pcs. of steel ball 3.

( 2 ) Mount sleeve.

( 3 ) Mount compression spring 13.

( 4 ) Mount flat washer 11.

( 5 ) Secure the above parts with spring washer to spindle.

Fig. 1

1R291

Retaining Ring S and R Pliers

Spindle

Flat washer 11

Sleeve

Steel ball 3

Compression spring 13

Head of clutch case

See Fig. 1.

Repair P 3 / 15

Fig. 2 Fig. 3

Fig. 4

Fig. 5

Fig. 6

< 4 > Disassembling spindle (as a bit holder) and clutch case

( 1 ) After removing bit holder section, remove ring 38 by unscrewing pan head screw M4x4, and clutch case cover

by unscrewing pan head screw M4x8. And then, remove compression spring 2 and switch lever. See Fig. 2.

( 2 ) Remove clutch case by unscrewing 4 pcs. of pan head screw M4x22. See Fig. 3.

( 3 ) Remove retaining ring R-21 from clutch case. And then, knock the edge of clutch case with plastic hammer.

So, spindle (as a bit holder) can be removed from clutch case. See Fig. 4.

( 4 ) Remove ring spring 11 from spindle. And then remove ball bearing 6801LLB on the ring spring 11 side.

See Fig. 5.

( 5 ) After removing ring 12, remove the another ball bearing 6801lLB. See Fig. 6.

Pan head screw M4x8

(black)

Clutch case cover

Clutch case

Compression

spring 2

Clutch case

Clutch section

Switch lever

Pan head

screw M4x22

Compression

spring 5

No.1R311

Retaining Ring Pliers

with Long Bent Nails

Retaining ring R-21

Spindle

Ring 12 Ball bearing

6801LLB

Ring spring 11 1R269

Bearing Extractor

Ball bearing 6801lLB

Ring 12

Spindle

1R004

Retaining ring S plier

Pan head

screw M4x4 (silver)

Ring 38

< Note > Compression spring 5 can easily fall off clutch section. Be careful, not to lose compression spring 5

in this step.

Repair P 4 / 15

Fig. 7 Fig. 8 Fig. 9

Fig. 10

Fig. 11

Fig. 12

Fig. 13

< 5 > Assembling spindle (as a bit holder) and clutch case

Ring spring 11

1R004

Retaining ring S plier

( 1 ) Set ball bearing 6801LLB on 1R035 "Bearing setting plate". Mount spindle to ball bearing 6801LLB by pressing

with arbor press. See Fig. 7

( 2 ) Mount ring 12 to spindle. See Fig. 8.

( 3 ) Set another ball bearing 6801LLB on 1R035 "Bearing setting plate". Mount spindle to the ball bearing 6801LLB

by pressing with arbor press. See Fig. 9.

( 4 ) Secure 2 pcs. of ball bearing 6801LLB and ring 12 with ring spring 11. See Fig. 10.

( 5 ) Mount the spindle section to clutch case as illustrated in Fig. 11.

( 6 ) Secure the spindle section in the clutch case with retaining ring R-21. See Fig. 12.

( 7 ) Mount clutch section to motor housing. Mount

compression spring 5 to the clutch section. Fasten

the clutch case to the motor housing with 4 pcs.of

pan head screw M4x22 See Fig. 13.

1R035

Bearing setting plate

1R036

Bearing setting plate

Ball bearing

6801LLB Ball bearing

6801LLB

Spindle

Ring 12

< Note > Do not use the used ring spring 11. It has to be always replaced with the fresh one.

1R237

Round bar for arbor

Clutch case No.1R311

Retaining Ring Pliers

with Long Bent Nails

Retaining ring R-21

Clutch case

Clutch section

Pan head

screw M4x22

Compression

spring 5

Repair P 5 / 15

Fig. 14 Fig. 15

Fig. 16

Fig. 17

Fig. 18 Fig. 19

< 6 > Disassembling clutch section

( 8 ) Mount compression spring 2 and switch lever. And secure clutch case cover with pan head screw M4x8.

See Fig. 14.

( 9 ) Secure ring 38 to clutch case with pan head screw M4x4 (silver). See Fig. 15.

Pan head

screw M4x8 (black)

Clutch case cover

Clutch case

Compression spring 2

Switch lever

Pan head

screw M4x4 (silver)

Ring 38

( 1 ) Remove ring 38 and clutch case cover referring to "< 4 > Disassembling spindle (as a bit holder) and clutch case".

( 2 ) Remove clutch section from motor housing. See Fig. 16.

Clutch section

Compression

spring 5

( 4 ) Remove adjust ring complete, compression spring 19

from spindle. See Fig.19.

( 3 ) Insert adjust grip into the hole of adjust ring complete.

Turn adjust grip anti-clockwise, until adjust ring complete

is free from the compression spring 19. See Fig. 17.

Then, lock nut M12 can be separated from adjust ring complete

by turning clockwise with your hand. See Fig. 18.

Lock nut M12

Adjust ring

complete

Compression

spring 5

Adjust grip

(Standard equipment

for some countries)

Adjust ring

complete Compression

spring 19A

Spindle

Repair P 6 / 15

(5) Insert hex wrench into the hole of spindle and hold the hex wrench with vise. Insert torx wrench T25 into

the hole of torx counter sunk head screw M5x10. And turn torx wrench T25 anti-clockwise. See Fig. 20.

(6) After removing torx counter sunk head screw M5x10, the clutch section can be disassembled in the order of

flat washer 7, steel balls 3.0, cam A and steel balls 4. See Fig. 21.

Remove steel balls 5. Then, cam B can be removed from spindle. See Fig. 22.

Torx counter sunk

head screw M5x10.

Torx counter sunk

head screw M5x10.

Hex wrench Torx wrench T25

6mm

Steel balls 3.0

(13 pcs.)

Flat washer 7

Cam A

<Note>

Pay attention, not to lose steel

balls, when disassembling.

Use the hex wrench with the

following size.

Steel ball 4

(3 pcs.)

Cam B

Steel ball 5

(3 pcs.)

Cam B

Spindle

Fig. 20

Fig. 21 Fig. 22

Fig. 23

< 7 > Assembling clutch section

(1) Before mounting, take the following steps. See Fig. 23.

1. Apply MAKITA grease N. No.2 to 3 pcs. of steel balls 5 and 3 pcs. of steel ball 4.

2. For effective adhesion, clean the screw hole of spindle and torx counter head sunk screw M5x10 with petrol.

Spindle Torx counter sunk

head screw M5x10

Screw hole for

torx counter sunk head

screw M5x10

Repair P 7 / 15

(2) Mount steel balls and cam B and cam A in the order of Fig. 24, Fig. 25, Fig. 26 and Fig.27.

(3) Before mounting, apply MAKITA grease N. No.2 to 13 pcs. of steel balls 3.0.

Assemble steel balls 3.0, flat washer 7 and torx counter sunk head screw M5x10 as illustrated in Fig. 28, Fig.29

and Fig. 30.

(4) Before mounting, apply MAKITA grease N. No.2 to threaded portion of spindle.

Assemble compression spring 19, adjust ring complete and lock nut 12 in the order of Fig. 31 and Fig. 32.

Steel balls 5

(3 pcs.)

Mount steel balls 5

to spindle. Mount cam D to spindle

with aligning its 3 grooves

with steel balls 5. Mount steel balls 4

to cam B. Mount cam A.

Cam B Steel balls 4

(3 pcs.)

Steel balls 3.0

(13 pcs.)

Mount steel balls 3.0

to cam A. Mount flat washer 7

to cam A.

Pay attention, not to spot

the screw hole of spindle

with the grease, when

assembling steel balls.

Flat washer 7

Torx counter sunk

head screw M5x10

Apply here the

adhesive by 0.1CC,

before screwing.

After applying 0.1cc (3 drops) of

adhesive, "Lock tight 603" in the

screw hole, fasten flat washer 7

with torx counter sunk head

screw M5x10.

The fastening torque for the

screw is 8 - 10 N.m.

Compression

spring 19

Adjust ring

complete

Fig. 31 Lock nut 12

Pressing lock nut 12 strongly, turn adjust grip

clockwise. Then, lock nut M12 turns anti-clockwise

and fastened to spindle.

Fig. 32

Fig. 24 Fig. 25 Fig. 26 Fig. 27

Fig. 28 Fig. 29 Fig. 30

Cam A

Repair P 8 / 15

< 8 > Disassembling motor section and gear section

Fig. 33

Fig. 34 Fig. 35

Fig. 36

( 1 ) Remove ring 38, and clutch cover from housing referring to "< 4 > Disassembling spindle (as a bit holder)

and clutch case".

( 2 ) After removing brush holder caps, carbon brushes and clutch section, separate housing L from housing R

by unscrewing 8 pcs. of pan head screw M3x20. See Fig. 33.

( 3 ) Remove gear section with motor section from housing R .

( 4 ) Turn motor bracket anti-clockwise. So gear section can be separated from motor section. See Fig. 35.

( 5 ) Remove endbell from motor armature. And then, pull armature from yoke unit. See Fig. 36.

Brush holder

cap

Brush holder

cap

Carbon brush

Clutch

section

Compression spring 5

Pan head

screws M3x20

Housing L

Housing R Plate

Lens

Gear section

Motor section

See Fig. 34.

Motor bracket

Gear section

End bell

Armature Armature

Yoke unit Yoke unit

<Note>

Be careful, not to be pinched your finger

between yoke unit and armature.

Because, armature is pulled toward yoke

unit by the strong magnetic force.

Repair P 9 / 15

( 6 ) Turn lock washer, and pull off it. See Fig. 37.

( 7 ) Then, gear section can be disassembled as illustrated in Fig. 38 and Fig. 39.

< 9 > Assembling motor section and gear section

Fig. 37 Fig. 38 Fig. 39

Fig. 40 Fig. 41 Fig. 42 Fig. 43

Fig. 44 Fig. 45 Fig. 46

Spur gear 9

complete

Spur gear 19 x 3 pcs.

Spur gear 18 x 3 pcs.

Carrier

complete B

Internal gear 47

Gear case

Ball bearing

6805LLB

( 1 ) Referring to "< 1 > Lubrication", apply MAKITA grease N No.2 to the gears and shaft portions of spur gear 9

and carrier complete B.

( 2 ) Mount ball bearing 6805LLB and carrier complete B to gear case. See Fig. 40

( 3 ) Mount internal gear 47 to the gear case. See Fig. 41.

( 4 ) Engaging internal gear 47, mount 3 pcs. of spur gear 18 to the shaft portion of carrier complete B. See Fig. 42.

( 5 ) Engaging spur gears 18, mount spur gear 9 complete. See Fig. 43.

( 6 ) Engaging internal gear 47, mount 3 pcs. of spur gears 19 to the shaft portion of spur gear 9 complete.

See Fig. 44.

( 7 ) Mount lock washer to the gear case by turning.

( 8 ) Mount motor bracket to the gear case by turning clockwise. The assembling of gear section has been completed

in this step.

Ball bearing

6805LLB

Carrier

complete B

Gear case

Internal

gear 47

Spur gear 18 Spur gear 9

complete

Spur gear 19

Lock washer

Motor bracket

Repair P 10 / 15

Fig. 47

Fig. 48

Fig. 49 Fig. 50

( 9) Insert armature in yoke unit. And mount endbell to the commutator side of armature. See Fig. 47.

The assembling of motor section has been completed in this step.

(10) Join the motor section to the gear section. See Fig. 48.

(11) Facing switch unit to the plate installing side, mount the motor and gear section to housing R.

and put ON/OFF switch with F/R change lever, buzzer circuit and terminal into housing R.

Contain LED circuit into housing R. See Fig. 49.

(12) Mount plate and lens. And secure housing L with 8 pcs. of pan head screw M3x20. See Fig. 50.

End bell

Armature

Yoke unit

<Note>

Be careful, not to be pinched your finger

between yoke unit and armature.

Because, armature is pulled toward yoke

unit by the strong magnetic force.

Gear section Motor section

Controller

Switch unit

F/R change lever

ON/OFF switch

Buzzer circuit

Terminal

Plate

Lens

Housing L

LED circuit

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