Makita Tw0250 Handbuch

PRODUCT

P 1/ 10

TECHNICAL INFORMATION

Model No.

Description

CONCEPT AND MAIN APPLICATIONS

Specification

Standard equipment

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

TW0250

Impact Wrench

TW0250 has been developed as a sister model of TW0200,

featuring 500W powerful motor to deliver maximum fastening

torque of 250N.m (25% higher than TW0200’s 200N.m)

for a wide range of professional applications.

Socket 24-25 .................................. 1

Hook .............................................. 1

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

Optional accessories

Sockets

Extension bar

Universal joint

Oval socket

Bit adapter

Socket bit

Phillips bits

Dimensions: mm (")

Width (W)

Height (H)

Length (L) 250 (9-7/8)

72 (2-13/16)

220 (8-5/8)

Continuous Rating (W)

Voltage (V) Cycle (Hz) Input Output Max. Output (W)

110 4.8 50/60 500 365

Current (A)

250

No load speed: min.-1=rpm

Impacts per min.: min.-1=ipm

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

Rotation reversing facility

Net weight : kg (lbs)

0 - 2,300

250 (190)

Driving shank

Yes

(by push-button type switch)

2.1 (4.6)

12.7mm (1/2") Square

Capacities M10 - M20Standard bolt

M10 - M14High tensile bolt

*torque at 3 seconds after seating when fastening M16 high tensile bolt

Power supply cord: m (ft) 2.5 (8.2)

Protection against electric shock Double insulation

P 2/ 10

Repair

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

in accordance with the instruction manual!

[1] NECESSARY REPAIRING TOOLS

[2] LUBRICATIONS

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Hammer case complete

Fig. 1

Fig.2

Code No. Description Use for

1R045 Gear extractor (large) Disassembling Hammer

1R346 Center attachment Disassembling Hammer

1R229 1/4” Hex shank bit for M5 Disassembling Hammer case complete

1R269 Bearing extractor Removing Ball bearing from Armature

1R344 Torque driver Tightening M5x50 Hex socket head bolt

1R288 Screwdriver magnetizer Removing Steel ball 6.4 from Spindle

Apply Makita grease N.No.1 to the following portions designated with the black triangle to protect parts

and product from unusual abrasion.

Portion to lubricate Amount

a little

DISASSEMBLING

Cup washer 5 (4pcs.)

Internal gear cover

complete

Carbon

brush

Urethane ring 5 (4pcs.)

M5x50 Hex socket

head bolt (4pcs.)

Hammer case

complete

Steel ball 3.5

(31pcs.)

Anvil SpindleHammer

Steel ball 6.4

(2pcs.)

Spur gear 32

(2pcs.)

Contact face of Hammer case complete and Anvil

Contact face of Anvil and Spindle

4.4g

Impact area of Anvil and Hammer

Contact face of Hammer, Anvil and Steel ball 6.4 (31pcs.)

Da little

Contact face of Hammer and Steel ball 3.5 (2pcs.)

C E

Carbon

brush

Armature

(1) Separate Hammer case complete and Internal gear cover complete from Motor housing. See Fig. 2.

1. Remove two Carbon brushes, and

separate four M5x50 Hex socket head

bolts.

Pay attention not to lose Cup washer 5

and Urethane ring 5.

2. Remove Hammer case complete together with

Internal gear cover complete and Armature.

Hammer case complete

2.0g

Gear teeth of Spur gear 32 (2pcs.)

P 3/ 10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Hammer case complete (cont.)

DISASSEMBLING

Pull off Armature while holding Internal gear cover complete and Hammer case complete by hand

so that they do not separate out.

Hammer case complete

Internal gear cover complete

Hammer case

complete

Remove Hammer case complete from Internal gear cover complete, and then disassemble the

components as illustrated below.

Flat washer 19

(This washer is left in Hammer case complete

due to grease.)

Anvil

Hammer section

Remove Flat washer 8, and then

pull off Pin 6.

Spur gear 32 can be removed

from Hammer section.

Internal gear 71

O ring 58

Internal gear

cover complete

(2) Disassemble Hammer case section as illustrated in Figs 3 and 4.

Flat washer 18

Pin 6 (2pcs.)

Spur gear 32

(2pcs.)

Figs 3

Figs 4

P 4/ 10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Hammer case complete (cont.)

ASSEMBLING

Fit the protrusions of Internal gear 71

into the notches of Internal gear cover

complete.

Internal gear 71

(4) Pass four M5x50 Hex socket head bolts through Urethane rings 5 and Cup washers 5.(Refer to Fig. 2.)

Secure Hammer case section to Motor housing by tightening M5x50 Hex socket head bolts.

Note: Pre-set the fastening torque of 1R344 to 1.6 N.m - 2.0 N.m when fastening Hammer case section with

M5x50 Hex socket head bolts

Internal gear

cover complete

(2) Assemble Hammer case section by reversing the disassembling step. Refer to Figs. 4 and 3.

(3) Assemble Hammer case section to Motor housing as illustrated in Fig. 6.

(1) Internal gear 71 can be assembled to Internal gear cover complete as illustrated in Fig. 5.

Fig. 5

Fig. 6

Protrusion

of Hammer case

complete

Protrusion

of Internal gear

cover complete

Groove of

Handle cover

1. Align the protrusion of Hammer case complete

with the protrusion of Internal gear cover

complete.

2. Fit the protrusion of Hammer case into the groove of Handle cover.

DISASSEMBLING

(1) Armature can be disassembled as illustrated in Figs. 2 and 3.

(2) Remove Ball bearings from the Armature as illustrated in Fig. 7.

Ball bearing 608DDW

Ball bearing 607LLB 1R269 1R269

Fig. 7

[3]-2. Armature

P 5/ 10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-2. Armature

ASSEMBLING

Fig. 8

Fig. 9 Fig. 10

Internal gear cover complete

Take the disassembling step in reverse

Note: Make sure that O ring 22 is assembled in Internal gear cover complete before assembling Armature. Refer to Fig. 8.

O ring 22

[3]-3. Hammer section

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 Gear extractor.

Failure to follow this instruction could cause Steel balls

to drop out of hammer.

Fig. R Fig. F

1. Press down Hammer using 1R045 to align the

opening for Steel ball 6.4 insertion with the top

of cam grooving on Spindle.

And then, remove Steel ball 6.4 from

Spindle.

Hammer

Spindle

Top of

Cam groove

on Spindle

Opening for

Steel ball

insertion

Steel ball 6.4

(2pcs.)

DISASSEMBLING

(1) Disassemble Hammer case section, and separate Hammer section from Hammer case section as illustrated in Figs. 2,

3 and 4.

(2) Disassemble the Hammer section as illustrated in Figs. 9 and 10.

P 6/ 10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-3. Hammer section

DISASSEMBLING

ASSEMBLING

Flat washer 18

Pin 6 (2pcs.)

Spindle Spur gear 32

(2pcs.)

Compression

spring 30

Cup

washer 19

Spindle section

Hammer section can be disassembled

as illustrated above.

Fig. 11

Hammer

(3) Spindle section Compression spring 30, Cup washer 19, Steel balls and Flat washer 12 can be removed from Hammer

as illustrated in Fig. 11.

Flat washer 32

Steel ball 3.5

(31pcs.)

After removing Flat washer 32,

Steel balls 3.5 can be removed

from Hammer.

Fig. 12

Place for one steel ball has to be reserved

in Hammer when twenty four Steel balls

are put in.

(1) Make sure that thirty one Steel balls are put in the Hammer as illustrated in Fig. 12.

(2) Assemble the Hammer section by taking the disassembling step in reverse. Refer to Figs. 11, 10 and 9.

P 7/ 10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-4. Baffle plate

DISASSEMBLING

Remove Handle cover. So, F/R Change lever is disassembled together with Handle cover. Remove F/R Change lever

from Handle cover. See Fig. 14, 15.

Take the disassembling step in reverse.

4x18 Tapping

screw (3pcs.)

Handle cover

Separate Handle cover from Motor housing by

removing 4x18 Tapping screws. F/R Change lever

comes with Handle cover.

ASSEMBLING

(1) Separate Hammer case section and armature from Motor housing, as illustrated in Fig. 2.

(2) Baffle plate can be removed as illustrated in Fig. 13.

Handle

cover

Baffle plate

Slide Baffle plate to Handle cover, and pull it up.

Fig. 13

Fig. 14

Fig. 15

[3]-5. F/R Change lever

Handle cover

F/R Change

lever

Push F/R change lever to left or right side

until it stops. Both ends are free from

Handle cover.

Pull the F/R Change lever to the inside

of Handle cover. And remove it.

F/R Change

lever

P 8/ 10

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-5. F/R Change lever

ASSEMBLING

Mount F/R Change lever to Handle cover, and assemble them to Motor housing as illustrated in Fig. 16.

Facing the mark of >PC< to the top, assemble F/R Change lever.

Otherwise, Reverse switch can not be controlled by F/R Change lever.

Mark of

> PC <”

Switch in

Motor housing

F/R Change lever

After assembling F/R Change lever

to Handle cover, mount the Handle

cover to Motor housing.

Refer to Fig. S.

Fitting the grooved portion to

the pin of Switch, assemble

Handle cover to Motor housing.

F/R Change

lever

Fig. S

Fig. 16

Circuit diagram

Fig. D-1

Makita logo side

Connect Field lead wire

(orange) to Brush holder B

on Makita logo side.

Connect Field lead wire

(purple) to Brush holder

A on Name plate TW0250

side.

Name plate

TW0250 side

Noise suppressor

(if used)

Power supply cord Sponge

White

Color index of lead wires' sheath

Black

Brush holder A

Brown Lead wire is used for

some countries.

Blue Lead wire is used for

some countries.

Brush holder B

Field

Switch

Red

Orange

Blue

Purple

P 9/ 10

Wiring diagram

Rib

Switch

Switch trigger

Facing the round side to Armature

side, apply Insulation cover to Field.

And tighten Field with 4x50 Tapping

screw.

Tab Connector

Pass Lead wire with Tab connector

between Rib and Motor housing.

Rib

Field leads wire on the Hammer

case side have to be guided

along the inner wall of Motor

housing.

Guide the Lead wires of Power

supply cord between the wall of

Makita logo side and Rib.

Noise suppressor (if used)

covered by Sponge

TW0250 Name plate side

Viewed from Hammer case side

Makita logo side

Switch

Assemble Field to Motor housing

while facing its Lead wire (orange)

to Switch side in order to connect

orange lead wire to Brush holder of

Makita logo side exactly.

Field lead wire

(orange)

Field lead wire

(purple)

Motor housing

When assembling Field to Motor housing, the Spring terminal of orange lead wire has to be connected to Brush holder

on Makita logo side. Do assembling as illustrated in Fig. D-2.

Makita

logo side Brush holder

Fig. D-2

Fig. D-3

Insulation cover

Put the extra portion of Lead wires

into the space between the inner wall

of Motor housing and Field core.

P 10/ 10

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Makita tw0250 Handbuch

Beliebte Impact Driver Handbücher anderer Marken