Kef Bsh 20-50 User manual

Industrivej 3-9

DK 9460 Brovst

Denmark

Tel. +45 9823 6266

Fax. +45 9823 6144

10.01.12

KEF-MOTOR A/S

Manual

BSH

Belt Grinding Machines

20-50

20-75

20-100

20-150

22-75

25-75

25-150

2

EU declaration of conformity

hereby declares that

BSH Belt Grinding Machines are manufactured in accordance with the provisions of the

COUNCIL DIRECTIVE of 17. May 2006 (2006/42/EC) –The Machinery Directive (order

no. 561 of 25 June 1994 with subsequent amendments)

2006/42/EC: Directive on machinery-safety

2004/108/EC: Directive on Electromagnetic Compatibility

2006/95/EC: Low Voltage Equipment Safety directive

Also on accordance with:

The council directive of 19 February 1973 (73/23/EEC) –The Low Voltage Directive

–with later amendments (order no. 797 of 30 August 1994)

The council directive of 3 May 1989 (89/336/EEC) –The EMC Directive –with later

amendments (order no. 796 of 5 December 1991 with subsequent amendments)

KEF-MOTOR A/S

Industrivej 3-9

DK-9460 Brovst

Denmark

www.scantool-group.com

Tel.: +45 98 23 62 66

Fax: +45 98 23 61 44

3

Table of Contents

1. TRANSPORT & HANDLING 4

1.1 TRANSPORT 4

1.2 HANDLING 4

1.3 PLACING 4

2. DIRECTIONS 5

2.1 OPERATION 5

2.2 SAFETY RULES FOR STATIONARY POWER TOOLS. 5

2.3 MAINTENANCE 7

3. SPARE PARTS LIST 8

3.1 DRAWING OF BELT GRINDING MACHINE WITHOUT EXHAUST SYSTEM 8

3.2 SPARE PARTS LIST FOR BELT GRINDING MACHINE WITHOUT EXHAUST SYSTEM 9

3.3 DRAWING FOR BELT GRINDING MACHINE WITH EXHAUST SYSTEM 10

3.4 SPARE PARTS LIST FOR BELT GRINDING MACHINE WITH EXHAUST SYSTEM 11

4. TECHNICAL DATA 12

4.1 TECHNICAL SPECIFICATIONS 12

4.2 DIMENSIONS 12

4.3 CIRCUIT DIAGRAMS 13

4.4 PRESSUREDIAGRAM 16

5. WARRANTY 16

5.1 GUARANTEE 16

4

1. Transport & Handling

1.1 Transport

The BSH belt grinding machine is packed in protective wrapping and delivered on

a pallet with the following measures: 120 x 80 x 120 cm

1.2 Handling

The machine can easily be transported on the pallet on which it is delivered.

1.3 Placing

Mounting of the belt grinder must take place on a firm and level ground. The

machine must be fastened to the ground by means of the four fittings which are

used to fasten the belt grinder to the pallet.

The machine is provided with no-volt release protection switch and connected for

the wanted voltage (V). The electrical connection must be performed by an

authorized electrician, and it is important to control that the motor (and ventilator)

has the correct direction or rotation (please see the arrow on the motor).

Eye shields, suction hose and perhaps dust bag must be mounted before use.

The clamps for mounting the suction hose are placed in the dust bag. The eye

shields (A) must be mounted into the eye shield fitting (see fig.: 1.1).

The tool rest (B) must be mounted at a distance of minimum 2 mm from the belt,

and the handle (C) must be fastened. Turn the contact wheel by your hand and

adjust the belt by means of the handle (D) until it runs just on the contact wheel. It

must be controlled that the spark box (F) is properly fastened. The wanted working

height is adjusted by means of the (G).

Fig.: 1.1

5

2. Directions

2.1 Operation

After adjustment and connection the belt grinding machine is ready for use. The grinding

can take place by the contact wheel or on the surface grinding table by opening the cover

(H) (see fig.: 1.1). By loosening the handle (E) the cover (I) can be opened and make

grinding of long materials possible. The lifetime of a new belt is prolonged if the grinding

starts with a light pressure.

2.2 Safety rules for stationary power tools.

Follow them to achieve best results and full benefit from your new machine.

The good craftsman respects

the tools with which he works.

He knows they represent years

of constantly improved design.

He also knows that they are

dangerous if misused.

This is the theme of a new safe-

use program for stationary

power tools. The safety rules

are based on approved

practices in industrial and home

shops

1. Know your power tool. Read the owner’s manual

carefully. Learn its applications and limitations, as

well as the specific

potential hazards

peculiar to this tool.

2. Keep guard in place

and in working order.

3. Ground all tools. If tool is equipped with three-

prong plug, it should be plugged into a three-hole

electrical receptacle. If an adapter is used to

accomodate a two-

prong receptacle, the

adapter wire must be

attached to a known

ground. Never

remove the third

prong.

4. Remove adjusting keys

and wrenches. Form

habit of checking to see

that keys and adjusting

wrenches is removed

before turning it on.

5. Cluttered areas and benches invite accidents.

6. Avoid dangerous

environment. Don’t use

power tools in damp or wet

locations or expose them to

rain. Keep your work area

well lighted.

6. Keep children away.

All visitors should be

kept in a safe distance

from work area.

6

8. Make workshop

kidproof with

padlocks, master

switches, or by

removing starter keys.

9. Don’t force tool. It will

do the job better and be

safer at the rate for

which it was designed.

.

10. Use right tool.

Don’t force tool or

attachment to do

a job it was not

designed for.

11. Wear proper

apparel. Wear no loose

clothing, gloves,

neckties, rings,

bracelets, or other

jewelry which may get

caught in moving parts.

Non-slip footwear is

recommended. Wear

protective hair covering

to contain long hair.

12. Always use safety

glasses. Also use face or

dust mask if cutting

operation is dusty.

Everyday eyeglasses only

have impact resistant

lenses. They are NOT

safety glasses.

13. Secure works. Use

clamps or vise to hold

works, when pratical. It’s

safer than using your

hands and it frees both

hands to operate tool.

14. Don’t

overreach.

Keep proper

footing and

balance at

all times.

15. Maintain tools with care. Keep tools sharp and

clean for best and safest

performance. Follow

instructions for lubricating

and changing accessories.

16. Disconnect tools before

servicing and when changing

accessories such as grinding

wheels, polishing mops,

grinding belts, blades, bits,

cutters, etc.

17. Reduce the risk of

unintentional starting.

Make sure switch is in off

position before plugging

in.

18. Use recommended accessories. Consult owner’s

manual for recommended accessories. Use of

improper accessories may cause risk of injury to

persons.

7

2.3 Maintenance

Empty the spark box with regular intervals and control if the suction canals need a

cleaning. The dust bag has to be emptied after use. The contact wheel should be

replaced when the edges have been worn round or the tyre has been damaged.

The graphite pad on the surface grinding table is changed as required.

Fig.: 2.1

When changing the belt it is released by turning the handle (J) in anti-clock-wise

direction (see fig.: 1.1), the cover (H) and the side plate (L) is opened and the

worn-down belt (K) is removed by driving the belt against the direction of rotation,

the belt is removed from the machine by the drive wheel. The new belt is fitted. It

must be checked that the direction of the arrows on the back side of the belt

correpsond to the direction of rotation. Fasten the handle (J) again and bring it into

alignment with the handle (D).

Fig.: 2.2

To change the contact wheel remove the grinding belt, tool rest and spark

arrester. Use a 6 mm mandel to hammer out the pin (L). Now the contact wheel

with axle and bearings can be taken out. One of the lock rings (M) and the axle

(N) can be taken out. The new contact wheel (O) is fitted in in reverse order.

8

3. Spare Parts List

3.1 Drawing of Belt Grinding Machine without Exhaust system

Fig.: 3.1

9

3.2 Spare Parts List for Belt Grinding Machine without Exhaust System

When ordering spare parts please state machine type and serial number together

with item number and description of the part according to this list.

Part Number

Item

No.

Description

20-50

20-75

22-75

25-75

20-100

20-150

25–150

1

Belt release handle

0102267

2

Belt guard

1055931

0239202

1055774

1055775

0239302

0239502

1055778

4

Grinding stop/Cover Blue

1055636

0880002

4532342

4532344

5

Eye shield

0233605

0233705

6

Split pin ø6x50 mm

0233050

7

Tool rest

1055634

0233207

0233307

0233507

8

Handle for tool rest

0233808

9

Bolt M10x25

0300134

10

Support for tool rest

0239373

0104373

15

Handle M6x25

0233025

18

Fan cover for motor

2031017

-

20

Screw M8x12

0300144

21

Graphite pad

0233022

0233221

0233921

0233222

0233321

0233521

0233421

22

Spring 5,5x43x125x11 mm

0102265

23

Fork for Contact Wheel

1055629

0110223

0110323

0110523

25

Star handle Ø32 M6x16

0233806

26

Screw M8x20

0233020

27

Knub handle for base

4567832

0233034

4567832

0233034

29

Drive wheel

5020024

-

32

Base without exhaust system

0100224

35

Side plate

6549081

1055772

1055773

6549081

1055773

36

Grinding belt

-

37

Screw M6x45 CH

0950614

39

Fan wheel for motor

0995704

-

42

Contact wheel with bearings

1532150

1535005

1535004

1535007

44

Ball handle M6xØ25

0331662

47

Lock nut M8

0928644

48

Switch comp.

-

49

Brakemodule (Optional)

0188845

50

Thermo relay

-

51

Emergency stop comp.

0188892

52

Relay w/0-volt retease coil

-

53

Start/stop protection

0188893

55

Split pin Ø4x50 mm

0102266

3454351

56

Disc 10x45x4

0860327

57

Disc 10mm

0101491

58

Disc 10mm,

2323212

59

Disc 8mm

5437850

60

Screw M4x8

0100425

61

Lock nut M6

0951406

62

Hinge mounting for eye shields

0921475

64

Disc 8mm

6540981

66

Lock ring Ø20

0311262

67

Shaft

0233051

0233251

0233351

0233551

68

Lock ring Ø7

0915720

69

Rubber Strip

1055860

1055807

1055808

1055860

1055808

70

Screw M6x12

0930612

71

Wave spring 14x0.3x21

0102268

72

Eccentric for 8 mm motor sheet

0752262

73

Disc 8mm

6540981

78

Screw M4x5

0737620

79

Motor

2030041

-

80

Parallel key

0110071

-

88

Disc 6mm

0737631

89

Screw M6x10

0110089

92

Handle for base

0233032

94

Axle with disc for base

0233038

95

Disc for base

0233036

96

Spark box

1055638

0101224

0101324

0153234

97

Star M6

0233807

98

Rest for surface grinding

1055679

1055680

1055681

1055682

10

3.3 Drawing for Belt Grinding Machine with Exhaust System

Fig.: 3.2

11

3.4 Spare parts List for Belt Grinding Machine with Exhaust System

When ordering spare parts please state machine type and serial number together

with item number and description of the part according to this list.

Part Number

Item No.

Description

20-50X

20-75X

22-75X

25-75X

20-100x

20-150X

25–150X

1

Belt release handle

0102267

2

Belt guard

1055931

0239202

1055774

1055775

0233902

0239502

1055778

4

Fitting for Eye Shield

1055636

0880002

4532342

4532344

5

Eye shield

0233605

0233705

6

Split pin ø6x50 mm

0233050

7

Tool rest

1055634

0233207

0233507

8

Handle for tool rest

0233808

9

Screw M10x25

0300134

10

Support for tool rest

0104373

11

Suction hose ø63

7891011

13

Fan cover for exhaust motor

2075180

0233813

14

Dust bag

0811793

15

Handle M6x25

0233025

16

Side plate for base

0105166

0101128

17

Cable

0963084

0963078

0963084

0963078

0963084

18

Fan cover for motor

2031017

-

20

Screw M8x12

0300144

21

Graphite pad

0233022

0233221

0233921

0233222

0233331

0233521

0233421

22

Spring 5,5x43x125x11 mm

0102265

23

Cradle for contact wheel

1055629

0101224

0101524

25

Star handle Ø32 M6x16

0233806

27

Knub handle for base

0233020

0233034

29

Drive wheel

5020024

-

33

Hose strap 58-75 mm

0233058

36

Grinding belt

-

37

Screw M6x45 CH

0950614

38

Socket with Dust extractor

1056049

39

Fan wheel for motor

0995704

-

41

Fan wheel for exhaust motor

2031015

42

Contact wheel with ball bearings

1535005

1535004

1535007

44

Ball handle M6xØ25

0331662

47

Lock nut M8

0928644

50

Thermo relay

-

51

Emergency stop comp.

0188892

52

Relay w/0-volt retease coil

-

53

Start/stop protection

0188893

55

Split pin Ø4x50 mm

3454351

56

Disc 10x45x4

0860327

57

Disc 10mm

0101491

58

Disc 10mm

2323212

59

Disc 8mm

5437850

60

Screw M4x8

0100425

61

Lock nut M6

0951406

62

Hinge mounting for eye shields

0921475

64

Disc 8mm

6540981

66

Lock ring Ø20

0311262

67

Axle

0233051

0233251

0233351

0233551

68

Lock ring Ø7

0915720

69

Rubber strip

1055860

1055807

1055808

1055860

1055808

70

Screw M6x12

0930612

71

Wave spring 14x0.3x21

0102268

72

Eccentric for 8 mm motor sheet

0752262

73

Disc 8mm

6540981

77

Parallel key 36x6x6

0110077

78

Screw M4x5

0737620

79

Motor

2030041

-

80

Parallel key

0110071

-

81

Screw M4x12 UHJ Z

0737610

0231196

82

Cover for terminal box

0110082

83

Exhaust motor 0.5HP

2030040

84

Fan wheel large 250 mm

0995704

85

Disc 5mm

0233030

86

Screw M5x30

0331786

87

Screw M6x16

0910616

88

Disc 6mm

0737631

89

Screw M6x10

0110089

92

Handle for base

0105167

0233032

94

Axle with disc for base

0233038

95

Disc for base

0239128

0233036

96

Spark box with exhaust system

1055643

0102224

0102324

0102524

97

Star M6

0233807

98

Plant to level

1055679

1055680

1055681

1055682

99

Switch comp.

-

12

4. Technical Data

4.1 Technical Specifications

Model

20-50

20-75

20-100

20-150

Grinding belt

50x2000

75x2000

75x2250

75x2500

100x2000

150x2000

150x2500

Motor 3x400-440 V 50 Hz

1,5/3,6 HK

4,1 HK

4,8 HK

4,8 HK*

Class

IEC 34-1

IEC 34,1

IEC 34-1

IP Class

54

r/min.

2800

2860

Amp

10.6/6.1

10,6/6,0

10.6/6.8

Cos 

0,91

Belt speed

30 m/s

30/34 m/s

Contact wheel

Ø200x50

Ø200x75

Ø200x100

Ø200x150

Fan motor

0,5 HK

Weight(kg) (20)

without fan/with fan

50 / 70

60 / 80

65 / 90

80/100

Weight (kg) (22)

without fan/with fan

-

70 /90

-

Weight (kg) (25)

without fan/with fan

-

90 / 100

-

110/130

* 5,5 HP motor available.

The noise level for KEF belt grinding machine has been measured to 80 dB(A) according

to the measuring instruction in the note 561 from the Work Inspection Department on

device of technical aids.

4.2 Dimensions

Fig.: 4.2

Model

A

B

C

D

E

F

J

G

H

I

K

20-50

995

660

890

780-1070

420

506

255

341

392

306

86

20-75

995

660

835

780-1070

420

506

306

255

199

107

22-75

1050

775

835

780-1070

420

506

306

255

365

199

107

25-75

1180

900

835

780-1070

420

506

306

255

199

107

20-100

995

660

835

780-1070

420

506

306

255

199

107

20-150

955

660

835

780-1070

420

506

306

255

491

185

25-150

1180

900

835

780-1070

420

506

306

255

491

185

13

4.3 Circuit diagrams

BSH belt grinding machines can be connected to 3 x 400/440 V, 50/60 cycles and

to 3 x 230 V 50/60 cycles. There is three kinds of circuit diagrams:

1. One velocity grinder without brakes see 4.3.1 and 4.3.2

2. One velocity grinder with brakes see 4.3.3 and 4.3.4

3. Two velocity grinder with no brakes see 4.3.5 and 4.3.6

Fig. 4.3.1.: Diagram of belt grinder with no exhaustmotor.

Fig. 4.3.2.: Diagram of belt grinder with exhaustmotor.

14

Fig.: 4.3.3 Diagram of belt grinder with brake and no exhaustmotor.

Fig.: 4.3.4 Diagram of belt grinder with brake and exhaustmotor.

15

Fig.: 4.3.5 Diagram of belt grinder with two velocities and no exhaustmotor.

Fig.: 4.3.6 Diagram of belt grinder with two velocities and exhaustmotor.

16

4.4 Pressurediagram

The fan is especially developed for belt grinders. It can set up a pressure up to 1300 Pa

and a air flow from 0 to 650 m³/hour. It is constructed of 1,5 mm steel plate and is spot

welded. It has a 3-phase motor 3x230/400 V and 1x230V 50/60 Hz, 2800 r.p.m. . The fan

is enclosed in Class IP 54.

5. Warranty

5.1 Guarantee

If within 2 year of purchase this machine supplied by KEF MOTOR A/S becomes defective

due to faulty materials or workmanship we guarantee to repair or replace the machine or

defective part or parts free of charge provided that:

1. The product is returned complete to one of our Service Branches or Official

Service Agents.

2. The product has not been misused or carelessly handled and in particular has

not been used in a manner contrary to the operating instructions.

3. Repairs have not been made or attempted by other than our own Service Staff

or the staff of our Official Service Agents.

4. Documentary proof of purchase date is produced when the goods are handed

in or sent for repair.

5. Wear parts are not covered by the warranty

KEF MOTOR A/S offers you five years guarantee on the electrical motor if the motor

becomes defective or even burns-out within the first 5 years from date of invoice.

KEF BSH 20-50 User manual

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