Makita TW0350 Manuel

Continuous Rating (W)

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

110 400

2,000

Yes (Rocker type)

350 (260)

400

230

350

120

220

230

240

3.8

3.5

1.9

1.8

12.7 (1/2)

2.5 (8.2) for other than Australia2.0 (6.6) for Australia

2.9 (6.4)

M12 - M22

M12 - M16

Models No.

Description

PRODUCT

Current (A)

TECHNICAL INFORMATION

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 / 8

Dimensions : mm ( " )

Width ( W )

Height ( H )

Length ( L )

TW0350

Impact Wrench

50 / 60

283 (11-1/8)

233 (9-1/8)

87 (3-7/16)

* Socket 24-45 .................................... 1 pc.

* Plastic carrying case ....................... 1 pc.

* Socket 19-38

* Socket 19-52

* Socket 19-78

* Socket 21-38

* Socket 21-52

* Socket 21-78

* Socket 21-150

* Socket 22-38

* Socket 22-52

* Socket 23-38

* Socket 23-52

* Socket 24-45

* Socket 24-52

* Socket 26-50

* Socket 26-78

* Socket 27-50

* Socket 27-78

* Socket 30-50

* Socket 30-78

* Socket 32-50

* Socket 32-78

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

Reverse switch

Net weight: kg (lbs)

No load speed (min-1=rpm)

Impact per minute (min-1=bpm)

Square drive : mm ( " )

Capacities

Power supply cord : m ( ft )

High Tensile bolt

Standard bolt

In order to occupy the advantageous position in the market,

we have developed the above impact wrench with the following

features.

* Incredibly high torque of 350 N.m (260 ft.lbs)

* Equipped with palm-fitting soft grip for comfortable work.

* Extension bar

* Universal joint

* Elliptic socket

* Time switch

Repair P 2/ 8

< 1 > Lubrication

Apply MAKITA grease N. No.1 to the following portions designated by black triangle to protect

parts and product from unusual abrasion.

Sleeve 18

10 13

Hammer case

Anvil

Hammer

Spindle

Spring holder

Spur gear 19-41

* The surface which contacts sleeve 18.

* The outer surface which contacts the inner surface of 8 Hammer

* The inner surface where contacts 10 Spring holder.

* The inner surface where contacts 13 Spindle.

* The wing portion which is percussed by cam portion of 8 Hammer.

* The cam portion which transmits the percussion to 7 Anvil.

* The edge portion where 19 pcs.of steel ball 4 roll.

* The groove where 2 pcs. of steel ball 6.4 roll.

* The gear portion

* The teeth portion

* The surface where flat washer 8 contacts.

* The joining hole in which 13 Spindle is inserted.

19 cps. of

steel ball 4 Steel ball 6.4

Compression

spring 28

Position

No. Parts item Portion

to be lubricated Amount : g

( oz )

Flat

washer 8

0.5 (0.02)

1.0 (0.04)

0.1 (0.01)

10 .0 (0.35)

2.0 (0.08)

3.5 (0.13)

3.0 (0.12)

Fig. 1

< 2 > Removing armature

Fig. 2

Cup washer

Motor housing

Hammer case cover

Urethane ring 5

Hex socket

head bolt M5x50

Hammer case

Armature

Mechanical section

( 1 ) Remove brush holder cap and carbon brush.

See Fig. 2.

( 2 ) Remove hex socket head bolt M5x50, cup

washer and urethane ring 5 each 4 pcs.

See Fig. 2.

( 3 ) Separate mechanical section (hammer case

and hammer case cover) from motor

housing. Then, armature can be separated

from motor housing together with

mechanical section. See Fig. 2.

< Note >

If the armature remains in the motor housing

at the step (3), it can be removed by knocking

the edge of motor housing with plastic hammer.

Repair P 3/ 8

< 4 > Disassembling hammer unit

Fig. 4

Fig. 5

Fig. 6

< 3 > Disassembling the mechanical section

Fig. 3R Fig. 3F

Hammer case

cover

Hammer unit

(hammer, spindle,

compression spring 28, etc.)

This part can remain

in the hammer case.

Anvil

Flat washer 19

( 1 ) Separate hammer case cover from hammer case by pulling in the vertical direction as illustrated in Fig. 3R

in stead of Fig. 3F.

( 2 ) Remove anvil and flat washer 19 from hammer case. See Fig. 4.

( 3 ) Remove the hammer unit and spur gear 19-41 and 3 pcs. of flat washer 8 from hammer case cover.

See Fig. 5.

The parts can fall

off the hammer case

cover.

The hammer unit

(hammer, spindle,

compression spring 28, etc.)

Spur gear 19-41 Flat washer 8

Flat washer 8

< Note > Be careful, not to lose flat washers.

Steel ball 6.4

Steel

ball 6.4

( 1 )Pull hammer toward gear

side with "No.1R045 Gear

extractor", and in order to

take out steel ball 6.4

align the top of cam groove

of spindle with the opening

portion of hammer.

See Fig. 6. Gear

Top of cam

groove

Opening

portion

Repair P 4/ 8

< 5 > Assembling hammer unit

Fig. 7R Fig. 7F

Fig. 8 Fig. 9

Fig.10R

Fig.10F

( 2 )After removing steel ball 6.4, loosen the handle of "No.1R045 Gear extractor" slowly until the spindle is free

from the compression spring 28.

( 1 ) Put 19 pcs. of steel ball 4 in the groove of spindle's gear portion. See Fig. 8.

( 2 ) Put spring holder, compression spring 28 and hammer on the spindle. See Fig. 9.

( 3 ) Pressing the hammer to the gear side, align the top of cam groove of spindle with the opening of hammer.

And mount 2 pcs. of steel ball 6.4 as illustrated in Fig. 10R.

The assembling of hammer unit has been finished at this step.

( 3 )Putting the hammer unit as illustrated in Fig. 7R, remove the following parts.

* Hammer

* Compression

spring 28

* Spring holder

* 19 pcs. of steel

ball 4

* Spindle

Hammer

Compression

spring 28

19 pcs. of steel ball 4

The steel balls 4

fall off the spindle

and can be lost.

Spindle

Spring holder

Compression

spring 28

Hammer

Spring holder

19 pcs. of steel ball 4

Apply grease to the groove

of spindles's gear portion for

prevention against the falling

off of steel ball.

19 pcs. of steel ball 4

Spindle

Spring holder

Compression

spring 28

Hammer

Steel ball 6.4

Do not hold the hammer unit as illustrated

in Fig. 10F, when pressing hammer to

the gear side.

The steel ball 4 can fall off the groove

of spindle's gear portion and scatter in

the hammer.

Repair P 5 / 8

Fig.11

Fig.12

Fig.13

The hammer unit

(hammer, spindle,

compression spring 28, etc.)

Spur gear 19-41 Flat washer 8

Flat washer 8

( 4 ) Mount the hammer unit and spur gear 19-41 to the hammer case cover. See Fig. 11.

( 5 ) Mount flat washer 19 and anvil to the hammer case. See Fig. 12.

( 6 ) Mount hammer case cover as illustrated in Fig. 13. The assembling of mechanical section has been finished

at this step.

< Note >

Do not forget to mount flat washers 8 to the following portion.

* Spindle of hammer unit

* Shaft of hammer case cover for spur gear 19-41 (both side of spur gear 19-41)

This part can remain

in the hammer case.

Anvil

Flat washer 19

Hammer case

cover

Hammer unit

(hammer, spindle,

compression spring 28, etc.)

Hammer

case cover

Repair P 6/ 8

< 7 > Replacing electrical parts in the handle

Fig.14

Fig.15

Fig.16

( 1 ) Unscrew 2 pcs. of tapping screw 4x18 and remove handle cover. Then, the electrical parts

(switch, line coil, resister, etc.) can be replaced. See Fig.14.

( 2 ) Put the sponge into the position as illustrated in Fig. 15.

( 3 ) Inflect the insulated terminals as illustrated in Fig. 16,

when connecting with switch terminals.

Tapping screw 4x18

Strain relief

Handle cover.

37 Switch

34 Sponge

38 Line coil

40 Terminal block

42 Noise suppressor

39 Resister

49 Cord guard

48 Power supply cord

If sponge is used, put it

in the illustrated place.

Handle cover

Switch

For the countries where Radio

Interference Suppression is required.

For the other countries

Circuit diagram P 7 / 8

Color index of lead wires

Black

White

Red

Orange

Brush holder

Left

Brush holder

Right

Brush holder

Left

Brush holder

Right

Brush holder

(Left)

Brush holder

(Right)

Brush holder

(Left) Brush holder

(Right)

Noise

suppressor

Terminal block

Terminal block Power supply

cord Power supply

cord

Resister

Field

Clear

Purple

Blue

Brown

Line

coil

3 6

2 5

Switch

Fastened

on field

core.

For some country insulated terminal can be used

in stead of terminal block.

For some country insulated terminal can be used

in stead of terminal block.

3 6

2 5

Switch

Tube

red or white

Wiring diagram P 8 / 8

Do not cross the lead wires with which

line coil and terminal block are connected.

Line coil

Terminal block

The lead wires (red or white ) for

connecting line coil with terminal

block have to be put as shown.

(between resister and noise

suppressor.

Noise suppressor

Resister

Insert the tube for protecting

lead wires, deep in the motor housing.

Fasten the lead wire

(clear) of noise

suppressor with screw.

Lead holder

Hold the following lead wires

with this lead holder.

* Lead wire (see through) of noise

suppressor

* Field lead wire (purple) to be

connected to switch

* Field lead wire (white) to be

connected to switch

* Field lead wire (black) to be

connected to insulated terminal

This lead wire has to be put in

the bottom of lead holder.

Lead holder

Hold the following lead wires

with lead holder.

* Field lead wire (red) to be

connected to switch

* Field lead wire (orange) to be

connected to switch

* Field lead wire (black) to be

connected to insulated terminal

Line

coil

Terminal block

Rib

Put lead wires of power supply cord

on the left side of rib.

Right side

Left side

Put the insulated terminals

under the lead wires of

power supply cord.

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