Makita BTW152 Manual

Models No.

Description

PRODUCT

CONCEPT AND MAIN APPLICATIONS

Specification

Standard equipment

Optional accessories

P 1/10

Dimensions: mm (")

Width (W)

Height (H)*

*with Battery BL1430

Length (L) 158 (6-1/4)

79 (3-1/8)

234 (9-1/4)

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

BTW152

Cordless Impact Wrench

BTW152 is a Cordless impact wrench powered by 14.4V/3.0Ah Li-ion battery BL1430.

Compact and lightweight, but powerful 4-pole DC Motor delivers strong torque of 200N.m

while reducing the tool’s overall length and weight to 158mm (6-1/4") and 1.5kg (3.3lbs).

This product is available in the following variations:

Note: This model cannot use 14.4V/1.3Ah Li-ion battery BL1415.

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

Sockets

Extension bar

Universal joint

Bit adapter assembly

Battery BL1430

Fast charger DC18RA

Charger DC18SD

Charger DC24SC

* Catalog value (torque at 6 seconds after seating, when fastening M16 high tensile bolt)

** Weight according to EPTA-Procedure 01/2003, with Battery BL1430

TECHNICAL INFORMATION

BTW152Z

BL1430DC18RA

NoNo

Model No. type quantity

Charger

Battery

cover

No All countries

Yes

Plastic

carrying case Offered to

BTW253RFE 2

Battery

Makita-blue

Housing

color

Battery

No load speed: min.-1=rpm

Impacts per min.: min.-1=ipm

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

Charging time: min.

Capacities

Electric brake

Reverse switch

Net weight** : kg (lbs)

Variable speed control by trigger

Capacity: Ah

Cell

Voltage: V 14.4V

0 - 2,400

0 - 3,200

200 (1,770)

Standard bolt

Driving shank

M8 - M16 (5/16 - 5/8")

High tensile bolt M8 - M12 (5/16 - 1/2")

Yes

LED job light Yes

1.5 (3.3)

3.0 (battery BL1430)

Li-ion

190

approx. 22 with DC18RA

12.7mm (1/2") Square

Max output (W)

This model also includes the accessories listed below in "Standard equipment".

P 2/10

Repair

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

in accordance with the instruction manual!

[1] NECESSARY REPAIRING TOOLS

[2] LUBRICATIONS

Code No. Description Use for

1R041 Vise plate Protecting Hammer case complete, fixed with Vise from deformation or damage

1R045 Gear extractor (large) Disassembling Hammer

1R346 Center attachment Attaching to 1R045, when disassembling Hammer

1R223 Torque wrench shaft Disassembling Hammer case complete

1R224 Ratchet head 12.7 Attaching to 1R223, when disassembling Hammer case complete

1R288 Screwdriver magnetizer Magnetizing Screwdriver for removing Steel balls

134848-9 Socket 32-50 ( 2 pcs. ) Disassembling Hammer case complete

Apply Makita grease N.No.2 and FA No.2 to the portions designated with black and gray triangles

to protect parts and product from unusual abrasion;

*Makita grease N.No.2 to the portions designated with black triangle

*Makita grease FA No.2 to the portions designated with gray triangle

Fig. 1

Item No. Description Portion to lubricate

Hammer

Flat washer 17

Compression spring 35

Cup washer 14

Spindle

Armature

Steel ball 5.6 (2 pcs)

Steel ball 3.5 (24 pcs)

Anvil

Stepped drum portion inserted into the hole of 14 Anvil

Gear portion which engages with Spur gear 22

Whole portion

Drum portion that touches Sleeve 18 factory-assembled in Hammer case comp.

York unit

Internal gear 51

Bearing box

complete

Hammer case complete

Nylon washer 18

P 3/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Hammer Case Section

DISASSEMBLING

Bumper

Remove Bumper, Hammer case cover and Rear cover, then separate Housing (R)

by unscrewing eight 3x16 Tapping screws.

1) Remove Hammer case complete and set it on Hex socket 32-50 (134848-9). (Figs. 2, 3)

3x16 Tapping

screw (2pcs)

3x16 Tapping

screw (8pcs)

Hammer case cover

Separate Hammer case section together with

Motor section from Housing (L), then pull

off Motor section from Hammer case section.

Fix Hex socket 32-50 (134848-9) firmly in vise,

then set Hammer section on Hex socket 32-50.

Note: Use two Vise plates (1R041) as illustrated

below in order not to damage Hex socket 32-50.

Rear cover

Housing (R)

Hammer case section

Motor section

Fig. 2

Fig. 3

Bearing box complete

1R041

Hex socket 32-50

(134848-9)

1R041

Fit this hexagonal portion

of Bearing box complete

in the socket of 134848-9

Hex socket 32-50.

P 4/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Hammer Case Section

DISASSEMBLING

2) Remove Hammer case complete from Bearing box complete using 1R223, 1R224 and another Hex socket 32-50.

Hammer case section can now be disassembled as illustrated to right in Fig. 4.

Fig. 4

1R223

1R224

Hex socket 32-50

Bearing box

complete

Hammer case

complete

Hammer section

Internal gear 51

O Ring 40

Put another Hex socket 32-50 (134848-9)

over Hammer case complete with this

hexagonal portion fitting into the socket.

Hammer case

complete

Turn Hex socket 32-50 clockwise

using 1R223 and 1R224.

P 5/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Hammer Case Section

ASSEMBLING

1) Assemble Hammer case section by piling component parts on Bearing box complete as illustrated in Fig. 5.

2) Engaging Armature’s pinion gear with Spur gears in Hammer section, assemble motor section to

Hammer case section as illustrated to left in Fig. 3.

3) Then assemble Housing (R), Hammer case cover and Bumper to the machine by doing the reverse of

the disassembling steps. (Fig. 2)

Internal gear 51

Bearing box

O ring 40

stepped end

Fig. 5

1R223

1R224

Fasten Hammer case complete

to Bearing box complete

by turning Hex socket 32-50

counterclockwise using 1R223

and 1R224 at the recommended

torque of 30 to 40 N.m.

Bearing box complete

Internal gear 51

Hammer case complete

Aligning the 4 locking grooves on the inside surface of

Hammer case complete with the four locking projections

of Internal gear 51, set Hammer case complete over

Bearing box complete.

Hex socket 32-50

(134848-9)

Bearing box

complete

Hammer section

Internal gear 51

O ring 40

Hammer case

complete

Fit the stepped end of Internal gear 51

in the groove of Bearing box.

Do not forget to set O Ring 40 in place

between Bearing box and Internal gear 51.

locking groove

locking protrusion

anti-rotation

protrusion

One of the four locking grooves is positioned on the back

of the anti-rotation protrusion of Hammer case complete.

By aligning the anti-rotation protrusion with any one of

the four locking protrusions of Internal gear 51, therefore,

you can fit all the locking protrusions in the corresponding

grooves.

P 6/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-2. Motor Section

1) Disassemble Motor section as illustrated in Fig. 2 and in left of Fig. 3.

2) Disconnect Carbon brush from the commutator of Armature, then remove Armature together with Yoke unit

from Brush holder complete. (Fig. 6)

3) Remove Armature from Yoke unit as illustrated in Fig. 7.

Fig. 6

Fig. 7

Put the assembly of Armature and Yoke unit

on a work bench so that the drive end of

Armature touches the work bench.

Then separate Yoke unit from Armature

by pressing it down towards the work bench.

DISASSEMBLING

Brush holder

complete

Armature

Yoke unit

1 Shift the tail of the torsion spring from the top of

Carbon brush into the notch of Brush holder complete

to remove the suppression force of the torsion spring.

2 Disconnect Carbon brush from the commutator

by pulling it in the direction designated with the arrow.

3 Pull off Armature and Yoke unit

from Brush holder complete.

Yoke unit

Armature

1) Assemble Armature to Yoke unit. Be sure to follow the instructions as described in Figs. 8, 9.

Your fingers can be pinched

and injured.

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

Fig. 8 Fig. 9

ASSEMBLING

Because Yoke unit is a strong magnet, when assembling Armature to

Yoke unit, be sure to hold the commutator portion as illustrated below

on left. 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.

Yoke unit is directional 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).

notch

P 7/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-2. Motor Section

2) Make sure that Carbon brushes are in place on Brush holder complete and that the tail of each torsion spring is

in the notch of Brush holder complete.as illustrated on right in Fig. 6.

Then insert the assembly of Armature and Yoke unit into Brush holder complete.

3) Engaging Armature’s pinion gear with Spur gears in Hammering mechanism, assemble motor section to

Hammer case section. (See the left drawing in Fig. 3.)

4) Set Drive unit (consisting of Brush holder comp., Yoke unit, Armature and Hammer case comp.) to Housing (L)

as illustrated in Fig. 10.

Fig. 10

Fig. 11

ASSEMBLING

5) After setting Drive unit in place, make sure that Brush holder comp., Yoke unit, Hammer case comp. are placed

on Housing (L) as illustrated in Fig. 11.

6) Connect Carbon brushes to Armature’s commutator, then assemble Housing (R) to Housing (L).

When setting Motor section on Housing (L),

fit the protrusion of Housing (L) in the notch

on Yoke unit.

protrusion

notch

Yoke unit

Hammer case complete

Housing (L)

rib

Brush holder

complete

anti-rotation

protrusion

Housing (L)

The end of Yoke unit has to fit

against this rib of Housing (L)

as illustrated below.

Housing (L)

Yoke unit

rib

Yoke unit

Switch

Hammer case

complete

The anti-rotation protrusion of

Hammer case complete has to

be placed on the Switch side.

The flat portion of Brush holder complete

has to be at 90 degrees to the edge surface

of Housing (L).

Housing (L)

flat portion of Brush

holder complete 90 degrees

Brush holder

complete

[View from Rear cover side]

P 8/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-3. Hammer Section

DISASSEMBLING

1) Disassemble Hammering section from Hammer case complete. See Figs. 2 to 4.

2) The removed Hammer section are disassembled as illustrated in Figs. 12 to 15.

1. Press down Hammer using 1R045 to align

the opening for Steel ball insertion with

the top of cam grooving on Spindle.

And then remove Steel ball 5.6 from Spindle.

Hammer

Spindle

Top of

cam groove

on Spindle

Opening for

Steel ball

insertion

Steel ball 5.6

(2pcs.)

Fig. 12

2. Hold Hammer section as illustrated in Fig. R,

and release it from the Gear extractor.

Note:

Do not hold gear extractor as illustrated in Fig. F

when releasing Hammer section from the Gear extractor.

Failure to follow this instruction could cause Steel balls

to get out of hammer.

Fig. R Fig. F

Fig. 13

Compression

spring 25

Cup washer 14

Spindle section

3. Hammer section can now be disassembled as illustrated below.

Hammer

Fig. 14

Hammer

Flat washer 24

Steel ball 3.5

(24 pcs.)

4. After removing Flat washer 24,

Steel balls 3.5 can be removed

from Hammer.

Fig. 15

Flat washer 12

Pin 5

Spindle Spur gear 22

P 9/10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-3. Hammer Section

ASSEMBLING

1) Put Steel balls 3.5 (24 pcs.) into Hammer. (Fig. 16)

2) Put Flat washer 24 on the Steel balls (Fig. 15)

3) Then do the reverse of the disassembling steps.

(See Figs. 14 to 12.)

Fig. 16

Hammer viewed from Spindle insertion side

Steel ball 3.5 (24 pcs.)

Space equivalent to one Steel ball

[3]-4. F/R Change Lever

ASSEMBLING

Assemble F/R change lever to Switch and Housing as illustrated in Fig. 17.

Fig. 17

Housing (L)

F/R change lever

Switch

pin of Switch

prong portion of

F/R change lever

Fit the pin of Switch into the prong portion

of F/R change lever as illustrated below,

then insert F/R change lever to the holes of

Housing (L) and (R) as illustrated on right. prong portion

into Housing (R)

Circuit diagram

LED

Light circuit

Brush holder

complete

Connector of Light circuit

Terminal

Switch

Fig. D-1

Color index of lead wire’s sheath

Black

Red

Orange

Blue

LED

Connector of Switch

P 10/10

Wiring diagram

Switch

Brush holder complete

Lead wire holder

LED

boss

Connector (large)

Connector (small)

Light circuit

rib Terminal side

Switch side

Lead wire holder

Terminal

Fig. D-2

1. Lead Wires of LED

2. Other Lead Wires

Fix LED lead wires (red, black) with lead wire holder,

then route between pin and boss as illustrated below.

Assemble each Connecting

terminal to Switch at approx.

20 degrees to the vertical.

Fix the lead wires connected

to each connector with these

lead wire holders.

Put Light circuit in place

so that the orange lead wire

faces toward the Terminal side.

Lead wire

(orange)

20 degrees

Do not cross LED lead wires (red, black) here.

LED

Fit the corner of LED against the corner

of Housing (L) as illustrated below.

Do not slack LED lead wires

(red, black) in this area.

Put the following lead wires

between the rib and Light circuit.

* Lead wires (red, black) from

Terminal to Connector (small)

* Lead wire (blue) from Switch

to Connector (small)

The lead wire (blue) from

Connector to Switch has to

be routed inside of this pin.

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