Makita Maktec MT241 Handbuch

Models No.

Description

PRODUCT

CONCEPT AND MAIN APPLICATIONS

Specification

Standard equipment

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

P 1/ 9

MT241

355mm (14") Portable Cut-Off

Dimensions: mm (")

Width (W)

Height (H)

Length (L) 500 (19-3/4)

620 (24-3/8)

280 (11)

355 (14)

25.4 (1)

15.7 (34.6)*2

3,800

0°

45°

WH x W: 102 (4) x 194 (7-5/8)

H x W: 70 (2-3/4) x 233 (9-1/8)

S x S: 137 (5-3/8) x 137 (5-3/8),

T: 10 (3/8)

S x S: 100 (4) x 100 (4),

T: 10 (3/8)

S S

Cord length: m (ft)

No load speed: min-1= rpm.

Wheel size: mm (")

Diameter

Arbor

Thickness

Capacity: mm (")

Miter angle

Weight according to

EPTA-Procedure 01/2003*1: kg (lbs)

Form of materials

D: Diameter

W: Width

H: Height

S: Side

T: Thickness

3 (1/8)

2.0 (6.6) for Brazil, 2.5 (8.2) for Oceania, 3.0 (9.8) for other countries

ø115 (4-1/2) ø115 (4-1/2)

Continuous Rating (W)

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

110

220

230

240

Current (A)

50/60

15.0

120 15.0

9.6

9.2

8.8

1,650

---

2,500900

2,000 1,400 3,000

Socket wrench 17 ................................ 1

Abrasive cut-off wheel 355 ............................... 1

H x W: 119 (4-11/16) x 119 (4-11/16) H x W: 106 (4-3/16) x 106 (4-3/16)

Model MT241 has been developed as the aesthetic change model

of maktec MT240, featuring industrial performance and durability

at less expense.

*1 with Abrasive cut-off wheel 355

*2 Weight shown above is the model with Center cap.

Optional accessories

H x W: 115 (4-1/2) x 103 (4-1/16)

TECHNICAL INFORMATION

Repair

CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.

P 2/ 9

[1] NECESSARY REPAIRING TOOLS

[2] LUBRICATIONS

Fig. 1

Code No. Description Use for

1R003 Retaining Ring S Pliers ST-2N Removing Pipe 20-128

1R269 Bearing extractor Removing Ball bearing 6000ZZ from spindle

Item No.

Apply the following grease to the portions pointed with triangles to protect parts and product from unusual abrasion.

Description

Gear housing complete

Base

Ring 17

Punched hole for Pipe 20-128 passing

Outside where Safety cover contacts

Lubricant AmountPortion to lubricate

Makita Grease N No.1

M10x140 Hex bolt

M10-17 Hex nut

Pipe 20-128

Helical gear 49

Safety cover

Inner flange

25 g

2 g

a little

57a

57b

57a

57a Surface where 86 Base contacts

57b Gear room where Helical gear 49 rotates

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Armature

DISASSEMBLING

ASSEMBLING

Disassemble Armature (Fig. 2, Fig. 3).

Take the reverse step of Disassembling (Fig. 3, Fig. 2).

Fig. 2

M5x30 Pan

head screw (3pcs.)

4x18 Tapping screw (4 pcs.)

Handle (L)

1. Remove Handle (L) by unscrewing

four Tapping screws and three M5x30

Pan head screws.

2. Remove carbon brushes.

Fig. 3

Armature

Motor housing 3. Unscrew four M5x30 Pan head screws

and remove Motor housing.

Now, Armature comes into your sight.

4. Armature can be replaced.

M5x30 Pan

head screw (4pcs.)

Armature

Repair

P 3/ 9

Fig. 4

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Helical gear 49

DISASSEMBLING

ASSEMBLING

(1) Remove M10x25 Hex flange head bolt, Outer flange, Cut off wheel, O ring 14, Ring 17, Inner flange.

(2) Remove Gear section (Fig. 4).

(3) Disassemble the removed Gear section (Fig. 5).

Take the reverse step of Disassembling (Fig. 5, Fig. 4).

Note: Assemble Spindle to Helical gear 49 carefully as described in Fig. 6.

Safety cover

1. Unscrew M5x40 Pan head screws that

secure Safety cover and Bearing box

to the machine.

2. Remove Ring 17 and

Safety cover.

And then, remove Gear

section.

M5x40 Pan head

screw (4pcs.)

Safety cover

Gear section

Ring 17

Fig. 5

3. Remove Ball bearing 6000ZZ

with 1R269.

4. Remove Spindle from Bearing box with Arbor press.

Ball bearing 6000ZZ

Ball bearing 6203ZZ

Spindle

Helical gear 49

Bearing box

Fig. 6

Aligning this flat portion

of spindle with the

flat portion of helical

gear 49, press the spindle

with arbor press.

Flat portion of helical

gear 49

Bearing

setting plate

Helical gear 49

Spindle

Repair

P 4/ 9

Fig. 7

[3] DISASSEMBLY/ASSEMBLY

[3]-3. Vise section

DISASSEMBLING

Vise section is fixed to Base as follows.

* at Screw guide with two M8x30 Pan head screws

* by interlocking of Shoulder pin 10-16 with the guide groove on Base

(1) Make Screw guide free from Base by unscrewing two M8x30 Pan head screws.

(2) Separate Vise screw from Vise plate. And remove Shoulder pin 10-16 (Fig. 7).

Screw guide

M8x30 Pan

head screw (2pcs.)

1. Remove M8x30 Pan head screws (2pcs.)

and Chain.

Vise screw

Vise plate

Shoulder pin 10-16

Retaining ring S-16

Shoulder pin 10-16

Vise plate

4. Push Vise plate to the hole

for removing Shoulder pin

10-16 from.

5. Separate Vise screw section from Vise plate

by removing Retaining ring S-8.

Hole for removing

Shoulder pin 10-16

Retaining

ring S-8

Screw guide

Vise screw

Vise plate

Retaining ring S-8

Flat washer 8

Pay attention

not to lose Flat

washer 8. Shoulder pin 10-16

Shoulder pin 10-16

6. Shoulder Pin 10-16 is removed through

the hole for removing Shoulder pin 10-16.

2. Remove Retaining ring S-16 from Shoulder pin 10-16.

3. Turn Vise plate to the position

where Retaining ring S-8 can be

easily removed.

Hole for removing

Shoulder pin 10-16

Vise plate

Chain

Repair

P 5/ 9

Fig. 8

[3] DISASSEMBLY/ASSEMBLY

[3]-3. Vise section

[3]-4. Base

ASSEMBLING

Take the reverse step of Disassembling (Fig. 7).

Chain has to be fixed to Screw guide on the side where Protrusion is furnished (Fig. 8).

Align the Chain with the Protrusion on Screw guide.

Protrusion on

Screw guide

M8x30 Pan head screw

DISASSEMBLING

Disassemble Base from Motor unit (Fig. 9, Fig. 10, Fig. 11).

Fig. 10

4. Remove chain from hanger

of Handle and move the motor

section up to upper dead end,

till the torsion spring has no

recoil tension.

5. Lay the machine down carefully.

Spring washer 10

Flat washer 10

M10-140

Hex bolt

Flat washer 10

6. Remove M10-17 Hex nut, Flat

washer 10 (2pcs.), M10-140

Hex bolt.

M10-17 Hex nut

Chain

Fig. 9

1. Secure the motor unit with

chain on the rear side.

Spark guardM6x12 Pan head screw

2. Unscrew M6x12 Pan

head screw and remove

Spark guard.

3. Remove Rubber case and

Rubber block.

Rubber case

Rubber

block

Chain

Repair

P 6/ 9

[3] DISASSEMBLY/ASSEMBLY

[3]-4. Base

DISASSEMBLING

ASSEMBLING

Take the reverse step of Disassembling (Fig. 11, Fig. 10, Fig. 9).

Assemble Rubber block assembly to the base (Fig. 12).

Fig. 11

No.1R003

5. Insert 1R003 into Pipe 20-128 and open it

fully in the Pipe to grip its internal surface.

And pull out the Pipe while twisting them.

6. Remove Torsion spring 24.

Now Motor unit is separated

from Base.

Pipe 20-128

Torsion spring 24

Motor unit

Fig. 12

Rubber case

Rubber block

Fit Rubber block to inside of Rubber case. And assemble them to Base (Fig. 10).

Repair

P 7/ 9

Circuit diagram

Wiring diagram

Fig. D-1

Fig. D-2

Color index of lead wires' sheath

Black

Field lead wire (white)

to Switch terminal No.1

Field lead wire (black)

to Terminal block

Field

Motor housing

Wiring in Motor Housing

Field lead wires (black) (white) have

to be fixed with Lead wire holders.

Lead wire

holder

Lead wire

holder

White

Blue

** Line filter

** Line filter: Line filter is not used for

some countries.

Field

Brown

Switch

Switch side

Power supply

cord side

* Terminal block

* Terminal block: Insulated connector is

used for connecting lead

wires in stead of Terminal

block.

This lead wire is white for some countries

in stead of blue.

Noise

Suppressor

This lead wire is black for some countries

in stead of brown.

P 8/ 9

Fig. D-3

Wiring diagram

Put Terminal block here

when it is used, or route

lead wire between ribs

colored gray.

Rib Bof

Handle R

Line filter

Put Line filter in this

place when it is used.

Put Noise suppressor

in this place, if it is used.

Switch

Terminal block

Noise suppressor

Do not loosen lead wires in this part.

Route Field lead wires (black), (white)

between Rib A and Rib B in Handle R.

And pass them through Line filter.

Field lead wire (white)

Field lead wire (black)

Rib A of

Handle R

Wiring in Handle R

P 9/ 9

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