Makita BTD140 Manual

Models No.

Description

PRODUCT

TECHNICAL INFORMATION

CONCEPT AND MAIN APPLICATIONS

Specification

Standard equipment

Optional accessories

P 1 / 9

Dimensions: mm (")

Width (W)

Height (H)

Length (L) 146 (5-3/4)

79 (3-1/8)

235 (9-1/4)

Note: The standard equipment for the tool shown above may differ by country.

BTD140

Cordless Impact Driver

Model BTD140 has been developed as the 18V version of the current 14.4V Cordless

impact driver Model BTD130F.

18V battery delivers powerful 220W maximum output, yet still extra-lightweight design

has been achieved by using 4-pole motor and Lithium-ion battery as power unit.

Features the same advantages as BTD130F as follows:

High operation efficiency

Hammer case without protrusion

Job light with afterglow function

Belt clip

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

Plastic carrying case ................ 1

Assorted Phillips bits

Assorted socket bits

Bit piece

Charger DC18SC

Charger DC24SA

Charger DC24SC

Li-ion Battery 1830

This new product will be available in the following variations.

BTD140SFE

BTD140 BL1830

(Li-ion 3.0Ah) DC18SC

Model No. type quantity Charger Offered to

USA, Canada

Mexico, Panama

All countries except

those listed above

Battery

No load speed: min.-1=rpm

Impacts per min.: min.-1=bpm

Max. fastening torque: N.m (in.lbs)

Capacities

Electric Brake

Reversing switch

Net weight*: kg (lbs)

Variable speed (electric)

Capacity: Ah

Cell

Voltage: V 18

0 - 2,300

0 - 3,200

145 (1,280)

Standard bolt

High tensile bolt

Machine screw

Driving shank

M5 - M14 (3/16 - 9/16")

M5 - M12 (3/16 - 15/32")

Coarse thread screw 22 - 125mm (7/8 - 4-7/8")

M4 - M8 (5/32 - 5/16")

Yes

1.5 (3.3)

3.0

Li-ion

220

6.35mm (1/4") Hex

*Includes battery BL1830

Max output (W)

P 2 / 9

Repair

[2] LUBRICATION

Apply Makita grease N. No.2 to the following portions designated with the black triangle to protect

parts and product from unusual abrasion.

[1] NECESSARY REPAIRING TOOLS

CAUTION: Remove the battery from the machine for safety before repair/ maintenance !

Code No.

1R045

Description

Gear extractor (Large) Disassembling Hammer mechanism

Turning Hammer case

Magnetizing screwdriver for removing Steel balls

1R346 Center attachment for 1R045

Disassembling Bit holder mechanism

Fixing Hammer case

1R288 Screwdriver magnetizer

1R232 Pipe 30

1R291 Retaining ring S and R pliers

1R041 Vise plate

1R223 Torque wrench shaft

1R224 Ratchet head

134847-1 Socket 30-78

Socket 32-50 Fixing Hammer case

134848-9

Use for

Fig. 1

20 Hammer case complete Inside surface where twenty-four 3.5 Steel balls are installed

Whole surface

Gear teeth

Gear teeth that engages with Spur gear 22 (Apply approx. 2g.)

25 Steel ball 5.6

26 Spur gear 22

27 Spindle Cam groove top

Surface that contacts Spur gear 22

28 Pin 5

30 Internal gear 51

Item No. Part description

Where to lubricate

when disassembling Hammer mechanism

Steel ball 3.5 (24 pcs) Compression spring 24

Flat washer 24

Cup washer 14

P 3 / 9

Repair

[3] DISASSEMBLY/ASSEMBLY

[3] -1. Disassembling/Assembling Hammering Mechanism

Fig. 3

1) Remove Belt clip by unscrewing Screw M4x12.

After removing Bumper and Hammer case cover

by hand, then remove Rear cover by unscrewing

two PT3x16 Tapping screws. (Fig. 2)

2) Shift the tail of torsion spring from Carbon brush

onto the notch in Brush holder.

Then pull off Receptacle from Brush holder.

Now Carbon brush can be removed from Brush

holder. (Fig. 3)

3) Separate Housing (R) from Housing (L) by removing eight PT3x16 Tapping screws.

4) Remove the assembly of the Hammer case section and the Motor section from Housing (L), then separate the Hammer

case from the Motor section.

5) Attach a pair of Vise plate (No.1R041) to vise. Fix Socket 32-50 in vise securely. Then put the Hammer case section

on Socket 32-50 while fitting the hexagonal portion of Bearing box in Socket 32-50. Fit Socket 30-78 over the hex-

agonal portion of Hammer case. Then, by turning Socket 30-78 with Torque wrench shaft 20-90N.m (No.1R223) and

Ratchet head with 12.7mm square (No.1R224) clockwise, the Hammer case section can be disassembled. (Fig. 4)

1 2

A[Brush holder section (View from A)]

Fig. 4

DISASSEMBLING

Rear cover

Tapping screw

PT3x16 (2 pcs)

Hammer case cover

Hammer caseBumper

Belt clip

Fig. 2

Screw M4x12

Carbon

brush

Carbon

brush

Torsion

spring

1. Shift the tail of Torsion spring

onto the notch of Brush holder.

2. Then pull off Receptacle from

Brush holder.

Hammer case

No.1R223

No.1R224

Socket 30-78

Fit socket 30-78 over

this hex portion.

Vise plate

Vise

Socket 32-50

Vise plate

Bearing box

Internal gear 51

O ring 40

Bearing box

Hammering mechanism

Hammer case

P 4 / 9

Repair

[3] -1. Disassembling/Assembling Hammering Mechanism (cont.)

Hammer

Spindle

No.1R346

No.1R045

Top of Cam groove

on Spindle

Notch for

Steel ball insertion

Steel ball 5.6

6) Install Center Attachment (No.1R346) on Gear Extractor, large (1R045).

(Fig. 5)

7) Set the Gear Extractor on the Hammering mechanism (= assembled unit of

Hammer, Spindle, Spur gears, Steel balls, etc.) as illustrated in Fig. 6.

Then turn the handle of the Gear Extractor clockwise to lower Hammer to

the full.

8) Align the notch in Hammer with the top of the cam groove on Spindle.

Then take steel ball 5.6 (2 pcs) out of spindle using tweezers or a slotted

screwdriver magnetized with Screwdriver Magnetizer (No.1R288). (Fig. 7)

9) Remove the Gear Extractor by turning the handle counterclockwise.

10) Remove Spindle, Compression spring 45 and Cup washer 14 from Hammer as illustrated in Fig. 8.

Important: Be sure to lower the Hammer side so that Steel balls in Hammer cannot fall down and scatter.

11) Now Steel ball 3.5 can removed from Hammer. There are 26 steel balls in the groove on the inside of Hammer.

(As illustrated in Fig. 9, the groove is designed to have a space equivalent to one steel ball.)

Fig. 5

1R045

1R346

Fig. 6 Fig. 7

Fig. 9

Hammer

Steel ball 3.5

(26 pcs)

space equivalent to

one steel ball

Fig. 8

Hammer

P 5 / 9

Repair

[3] -1. Disassembling/Assembling Hammering Mechanism (cont.)

Do the reverse of assembling steps.

Note:

1) Assemble by piling component parts on Bearing box as illustrated in Fig. 10.

2) Make sure that twenty-six 3.5 Steel balls are in place inside Hammer.

3) Do not forget to install O ring 40 when assembling Internal gear 51 to Bearing box. (Fig. 11)

4) Internal gear 51 is not reversible when assembled to Bearing box. Be sure to assemble so that the stepped end of

the gear face Bearing box. (Fig. 11)

5) Assemble Hammer case complete to Bearing box as illustrated in Fig. 12.

Fig. 12

Bearing box

Hammer case complete

Socket 32-50 for fixing Bearing box

four projections

Internal gear 51

ASSEMBLING

Fig. 11Fig. 10

Internal gear 51

O ring 40

Bearing box

Hammering mechanism

Hammer case

Fit Hammer case complete over Internal gear 51 with

the four grooves on the inside of Hammer case complete

aligned with the corresponding projections on Internal gear 51.

Then, using No.1R224 and No.1R223,

fasten Hammer case complete to

Bearing box by turning counterclockwise

to the recommended torque of 30 - 40 N.m.

four grooves on

the inside surface

Internal gear 51

Bearing box

O ring 40

stepped end

P 6 / 9

Repair

[3] -2. Disassembling/Assembling Bit Holder Section

1) Put Anvil on Pipe 30 (No.1R232). (Fig. 13)

2) Put your thumb on the top of Sleeve so that Compression spring 13 does not pop out of Sleeve. (Fig. 14)

3) While expanding Ring spring 11 using Retaining ring S and R pliers (No.1R291). raise the opposite side of the Ring

spring with index finger. (Fig. 14)

4) Now the bit holder section can be disassembled as illustrated in Fig. 15.

Do the reverse of disassembling steps.

Fig. 13 Fig. 14

ASSEMBLING

DISASSEMBLING

[3] -3. Disassembling/Assembling Motor Section

1) Separate the assembly of Armature and Yoke

unit from the machine.

(Refer to 1) to 4) of [3] -1. Disassembling

Hammering Mechanism.)

2) Put the assembly of Yoke unit and Armature

on a work bench so that the drive end of the

Armature touches the work bench.

Then separate Yoke unit from armature by

pressing it down towards the work bench.

(Fig. 16).

DISASSEMBLING

No.1R232

Anvil

Hammer case

Sleeve

Ring spring 11

Sleeve

Important:

Do not forget to mount Nylon washer. (Fig. 15)

Put your thumb on

the top of Sleeve.

Raise this side

with index finger.

Expand Ring spring 11

using No.1R291.

Fig. 15

Hammer case Nylon washerSleeve

Steel ball 3.5

Anvil

Compression spring 13

Flat washer 12

Yoke unit

Fig. 16

P 7/ 9

Repair

[3] -3. Disassembling/Assembling Motor Section (cont.)

Do the reverse of disassembling steps.

Important:

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. If assembled wrong, the Motor section cannot be assembled to Housing (L). (Fig. 17)

2) Because Yoke unit is a strong magnet, when assembling Armature to Yoke unit, be sure to hold the commutator portion

as illustrated to left in Fig. 18. Do not hold the Armature core as illustrated to right or your fingers will be pinched

between Yoke unit and the fan of Armature that is pulled strongly by the magnet force.

Fig. 17 Fig. 18

ASSEMBLING

3) When assembling the Motor section to Housing (L),

fit the notch in Yoke unit onto the projection on

Housing (L) (Fig. 19)

Your fingers can be pinched

and injured.

[Wrong][Correct] [Wrong][Correct]

Notch

Fig. 19

Notch Housing (L)Projection

Hammer

case side

P 8/ 9

Fig. 20

[1] Lead Wire of Carbon Brush

As illustrated to left in Fig. 20, put each Carbon brush into

Brush holder so that its lead wire is placed outside.

Then route the lead wire of Carbon brush through the

outside slot in Brush holder as illustrated to left in Fig. 20.

(Illustrations in Fig. 20 is the Carbon brush section viewed from A.)

[Correct] [Wrong]

Lead wire of Carbon brush

The lead wire correcltly routed

Torsion spring

Tail of torsion spring

Circuit diagram

Color index of lead wires' sheath

Black

Red

Orange

Blue

LED

Light circuit

Switch

Brush holder

complete

Terminal

Connector

Wiring diagram

Route the lead wire of

Carbon brush through this

outside slot in Brush holder.

The lead wire routed

wrong may interfere

the tail of Torsion

spring.

P 9/ 9

Fig. 21

[2] Wiring in Housing

Wiring diagram

Brush holder complete

Put Light circuit in place

so that the orange lead wire

faces toward the Terminal side.

[2] -1. Lead Wires of LED

Connector

Light circuit

lead wire holder

LED

Be sure that the lead wires

of LED are tight here.

As illustrated below, fix the two lead wires (red and black) of LED

with lead wire holders, and route them between the pin and the boss.

boss

Fit the corner of LED in this

corresponding corner of Housing (L).

LED

Connector (large)

Connector (small)

Light circuit

rib Terminal side

Switch side

Do not cross the lead wires of LED here.

Lead wire

(orange)

lead wire holder

With these lead wire holders,

fix the lead wires connected

to each connector.

[2] -2. Other Lead Wires

Assemble each Connecting

terminal to Switch at approx.

degrees to the vertical.

Switch

The lead wire (blue) from

Connector to Switch has to

be routed inside of this pin.

Put the following lead wires

between the rib and Light circuit.

*Lead wires (red and black) from

Terminal to Connector (small)

*Lead wire (blue) from Switch

to Connector (small)

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