Clarke CBG6RL Manual

BENCH GRINDER

MODEL Nos.

CBG6RL & CBG8RL

CBG6RSC & CBG8RSC

CBG6RWC & CBG8RWC

CBG6RR & CBG6RRW

OPERATING & MAINTENANCE

INSTRUCTIONS

CBG8RL

0805

TECHNICAL DATA

CBG6RL CBG8RL

Grinding Wheel Size 2x150x20x12.7mm 2x200x20x32mm

Grade of Grinding Wheel 1 x Grit Size 36 1 x Grit Size 36

1 x Grit Size 80 1 x Grit Size 80

Power Supply 230V 50Hz 1ph 230V 50Hz 1ph

Motor size 250W 375W

Speed (RPM) 2,950 2,950

Weight-packed 12kg 16kg

Part No. 6500500 6500510

CBG6RSC & CBG6RR CBG8RSC

Grinding Wheel Size 2x150x20x12.7mm 2x200x20x32mm

Grade of Grinding Wheel 1 x Grit Size 36 1 x Grit Size 36

1 x Grit Size 80 1 x Grit Size 80

Power Supply 230V 50Hz 1ph 230V 50Hz 1ph

Motor size 250W 375W

Speed (RPM) 2,950 2,950

Weight-packed 12kg 16kg

Part No. 6500030 6500040

CBG6RWC & CBG6RRW CBG8RWC

Grinding Wheel Size 1x150x20x12.7mm 1x200x20x32mm

Grade of Grinding Wheel 1 x Grit Size 60 1 x Grit Size 60

Wire Wheel Size 1x150x20x32mm** 1x200x20x32mm

Power Supply 230V 50Hz 1ph 230V 50Hz 1ph

Motor size 250W 375W

Speed (RPM) 2,950 2,950

Weight-packed 12kg 16kg

Part No. 6500035 6500045

**Insert provided

Duty Cycle 20/20 min

When disposing of this product, do not dispose of with general waste. It must be disposed of according to the laws

governing Waste Electrical and Electronic equipment, at a recognised disposal facility.

Please note that the details and specifications contained herein, are correct at the time of going to print. However, CLARKE

International reserve the right to change specifications at any time without prior notice.

DECLARATION of CONFORMITY

We declare that this product conforms to the following directives:

• 98/37EC

signed

L.E. Fergusson

Engineering Manager

Thank you for purchasing this CLARKE BENCH GRINDER, which is designed for DIY

and general workshop use.

Before attempting to operate this machine, please read this instruction manual

thoroughly and follow all directions carefully. By doing so you will ensure the safety

of both yourself and others around you, and at the same time, you should look

forward to long and trouble free service from your Bench Grinder.

GUARANTEE

This product is guaranteed against faults in manufacture for 12 months from

purchase date. Keep your receipt as proof of purchase. This guarantee is invalid

if the product has been found to have been abused in any way, or not used for the

purpose for which it was intended, or to have been tampered with in any way. The

reason for return must be clearly stated. This guarantee does not affect your

statutory rights.

CONTENTS PAGE

Guarantee, General Safety Rules ................................................... 2

Special Safety Rules for Grinders ..................................................... 3

Electrical Connections, Fuse Rating ................................................ 4

Pre Assembly Check / Assembly ..................................................... 5

Maintenance - Adjustments / Changing the Grinding Wheel ..... 6

Parts List and Diagram ...................................................................... 8 - 10

Technical Data .................................................................................. 11

Parts and Service............................................................................... 11

GENERAL SAFETY RULES

1. KEEP GUARDS IN PLACE and check they are not damaged.

2. REMOVE ADJUSTING KEYS AND WRENCHES. Make a habit of checking to see

that all adjusting keys and wrenches are removed from machine before

turning it on.

3. KEEP WORK AREA CLEAN. Cluttered areas and work benches invite accidents

4. DO NOT USE IN A DANGEROUS ENVIRONMENT. Do not use any power tools

in damp or wet areas, or expose them to rain. Keep work area well lit.

5. KEEP CHILDREN AWAY. All visitors, but in particular children, should be kept at

a safe distance away from the work area.

6. MAKE YOUR WORKSHOP CHILDPROOF with padlocks, master switches, or by

removing starter keys.

7. DO NOT FORCE YOUR BENCH GRINDER. It will do a better and safer job if used

at the rate for which it was designed.

8. WEAR THE PROPER APPAREL. No loose clothing, gloves, neckties, rings,

bracelets, or any other jewellery which might get caught in moving parts.

Non-slip footwear is recommended. Long hair should be contained.

9. ALWAYS USE SAFETY GLASSES. Everyday glasses only have impact resistant

lenses, they are not safety glasses. Also use a face mask if a lot of dust is

generated.

10. DO NOT OVERREACH. Keep a firm footing and proper balance at all times.

11. DISCONNECT FROM THE MAINS before attempting any kind of service work or

adjustment or when changing accessories such as grinding wheels.

12. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for best and safest

performance.

13. REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in the OFF

position before plugging in.

14. CHECK FOR DAMAGED PARTS. Before using the machine, always check parts

for signs of damage, and to ensure they are secure. If a component suffers

slight damage, (eg. a distorted guard or bracket), make sure it will perform its

intended function properly before switching on. If in doubt, do not use the

machine. ALWAYS be prepared to SWITCH OFF IMMEDIATELY, if you

experience unusual noises, or excessive vibration. Do not use the machine

until the fault is fully rectified.

ADDITIONAL SAFETY RULES FOR BENCH GRINDERS

1. Replace a cracked wheel immediately.

2. Always use guards and eye shield

3. Do not overtighten wheel nut.

4. Maintain the distance between wheel and tool rest to 1/16 (1.6mm) or less as

the diameter of the wheel decreases with use.

5. Use a grinding wheel suitable for the speed of grinder. (See technical data).

6. Stand to one side of bench grinder during operation, not directly in front.

7. One minute of free rotation is necessary for a new grinding wheel. Should the

new grinding wheel be faulty and break, it will happen within the first minute

of operation.

8. Do not remove the wheel guard except when changing a worn wheel.

9. Do not use the grinding wheel for any kind of cutting.

10. Do not use the side of the wheel for any reason.

11. Do not over stress the grinding wheel.

12. NEVER leave a grinder running unattended. Turn power off. Do not leave tool

until it comes to a complete stop.

13. Use ONLY approved replacement grinding wheels. Contact your local dealer

for approved replacement grinding wheels. The use of inferior parts may risk

of injury.

ELECTRICAL CONNECTIONS

Connect the mains lead to a standard, 230 volt (50Hz) electrical supply through a

fused good quality 13 amp BS 1363 plug, or a suitable fused isolator switch.

WARNING: THIS APPLIANCE MUST BE EARTHED

IMPORTANT: The wires in the mains lead are coloured in accordance with the

following code:

Green & Yellow —- Earth

Blue —- Neutral

Brown —- Live

As the colours of the flexible cord of this appliance may not correspond with the

coloured markings identifying terminals in your plug, proceed as follows:

Connect GREEN & YELLOW cord to terminal marked with a letter “E” or Earth

symbol ‘ ’ or coloured GREEN or GREEN & YELLOW.

Connect BROWN cord to terminal marked letter “L” or coloured RED.

Connect BLUE cord to terminal marked letter “N” or coloured BLACK.

We recommend that this unit is fitted with a Residual Current Device (RCD).

FUSE RATING

The fuse in the plug for this appliance must be rated at 5 amps

IMPORTANT NOTICE

If this appliance is fitted with a plug which is moulded on to the electric cable (i.e.

non rewirable) please note:

1. This plug must be thrown away if it is cut from the electric cable. There is a

danger of electric shock if it is subsequently inserted in a socket outlet.

2. Never use the plug without the fuse cover fitted.

3. Should you wish to replace a detachable fuse carrier, ensure that the correct

re-placement is used (as indicated by marking or colour code).

4. Replacement fuse covers can be obtained from your local dealer, or an

electrical stockist.

5. The fuse in the plug must be 5 Amps, and any replacement must be ASTA

approved to BS1362.

PRE-ASSEMBLY CHECK

Before assembling your Bench Grinder, please check to ensure that all the parts

listed below have been included. If any parts are missing or damaged, you should

immediately contact your local dealer or CLARKE International on 0181-558 6696

for replacement.

1. Main Body (switch and

power cable with plug are

included. Additionally, the

CBG6RL and 8RL models

include a lamp assembly

complete with bulb).

2. Two Eyeshields, each

complete with 1 x nut, 1 x

bolt, 1 x spring washer and

2 x flat washers (A).

3. Two spark arrestor

brackets, each complete

with 1 x screw, 1 x spring

washer and 1 x flat washer

(B).

4. Two Tool rests, each

complete with 2 x screws,

2 x spring washers and 2 x

flat washers (C).

ASSEMBLY

1. Attach the tool rests with the bolts and washers provided, in the manner

shown in fig 1 - page 6.

The tool rests are adjustable and should be positioned 1/16" (1.6mm) from the

grinding wheels, ensuring they are firmly fixed and horizontal.

NOTE: Tool rests are not used with the Wire Wheels fitted to the CBG6RWC and

8RWC models, but are available as an accessory. (See your CLARKE dealer).

2. Assemble the Spark Arrester Brackets on to the Wheel Guards, using the single

screw and washers provided, in the manner shown in fig. 2 - page 6.

NOTE: Before fully tightening the screw, each bracket should be adjusted by sliding

it as close as possible to the grinding wheel without impairing the wheel

rotation. As the wheel wears down with use, it will be necessary to re-adjust

the brackets accordingly.

3. Assemble the Eye Shields on to the Spark Arrester Brackets using the nuts, bolts

and washers supplied, in the manner shown in fig. 3. The angle of the Eye

Shields are adjustable to suit the operator.

4. Your Clarke Bench Grinder should be securely bolted to a workbench before

operation, using the pre-drilled holes in the base.

2 x 5/16" (8mm) bolts are recommended. (Not supplied)

MAINTENANCE

Before carrying out any service or adjustments, ensure the grinder is switched OFF,

and disconnected from the electrical supply.

A. SPARK ARRESTER & EYE SHIELD ADJUSTMENT

Due to wear on the grinding wheel, it is necessary to adjust the Spark Arrester

Fig. 1

Fig. 3

Fig. 2

brackets from time to time. Adjustments can be made by loosening the mounting

screw, and positioning the bracket accordingly, remembering to re-tighten the

screw once adjustment is complete.

The see-through Eye Shields allow the user to see the operation clearly, and to work

precisely. The eye shields can be adjusted on their pivots to suit the operator.

IMPORTANT: Even though Eye Shields are fitted, you should nevertheless, ALWAYS

wear safety goggles when operating a grinding machine.

B. TOOL REST ADJUSTMENT

The appropriate adjustment of the tool rests provides the operator with a correct

working angle and a firm and efficient base for working. A gap of approx. 1/16"

between the wheel and tool rest should be maintained at all times. Due to wear on

the grinding wheel, it is necessary to adjust the tool rests from time to time.

Adjustments can be made by loosening the mounting screws, and positioning the

tool rest accordingly, remembering to re-tighten the screws once adjustment is

complete.

C. CHANGING THE GRINDING / WIRE WHEEL

1. Remove outside wheel cover, by unscrewing the cover retaining bolts, and

slacken the Tool Rest and Spark Arrester mounting screws.

2. Holding the wheel firmly, remove the nut and flange using the correct size

spanner, noting that the left wheel nut carries a left hand thread.

IMPORTANT: Always wear a heavy duty glove to hold a wire wheel.

3. Take off the used wheel and replace with a new one, ensuring the blotter is in

place between the wheel and flange. Do not overtighten the nut - holding

the wheel with your hand will enable you to apply sufficient force to tighten

the nut effectively.

4. Re-assemble, steps A & B as detailed above, ensuring that there is a good

balanced rotation of the wheel.

5. Switch on the machine and allow the wheel to rotate freely, for at least 1

minute.

D. DRESSING THE WHEEL

It will be necessary from time to time to dress the wheel, to obtain a true working

surface. This should be done ONLY with an approved dressing tool, which can be

obtained from your CLARKE dealer, quoting Model Number GWD-1. Part No.

6501120.

E. OPERATING THE LAMP (CBG6RL and CBG8RL only)

The lamp is provided with a rotary type switch located at the rear of the lamp

shade. Simply turn the switch to turn ON and OFF

PARTS DIAGRAM

PARTS LIST

6RSC 6RWC 6RL 8RSC 8RWC 8RL

6RR 6RRW

No. Description Part No. Qty Qty Qty Part No. Qty Qty Qty

1 Case Motor HT6R001 1 1 1 HT8R001 1 1 1

2 Stator HT6R002 1 1 1 HT8R002 1 1 1

3 Rotor Shaft HT6R003 1 1 1 HT8R003 1 1 1

4 Circlip HT6R004 2 2 2 HT8R004 n/a n/a n/a

5 Bearing HT6R005 2 2 2 HT8R005 2 2 2

6 End Bell HT6R006 2 2 2 HT8R006 2 2 2

7 Base Motor HT6R007 1 1 n/a HT8R007 1 1 n/a

7A Base Motor HT6R007A n/a n/a 1 HT8R007A n/a n/a 1

8 Switch Base Plate HT6R008 1 1 1 HT8R008 1 1 1

- Switch Base Screw HT6R008A 2 2 2 HT8R008A 2 2 2

- Switch Base Star Washer HT6R008B 2 2 2 HT8R008B 2 2 2

9 Switch Assembly HT6R009 1 1 1 HT8R009 1 1 1

10 Capacitor HT6R010 1 1 1 HT8R010 1 1 1

11 Capacitor Clamp HT6R011 1 1 1 HT8R011 1 1 1

12 Cable HT6R012 1 1 1 HT8R012 1 1 1

13 Plate Securing HT6R013 1 1 1 HT8R0013 1 1 1

- Plate Securing Screw HT6R013A 2 2 2 HT8R013A 2 2 2

14 Grommet HT6R014 1 1 1 HT8R014 1 1 1

15 Grommet HT6R015 1 1 1 HT8R015 1 1 1

16 Rubber Foot HT6R016 4 4 4 HT8R016 4 4 4

17 Screw HT6R017 4 4 4 HT8R017 4 4 4

18 Bolt Hex 6mm HT6R018 2 2 2 HT8R018 2 2 2

18a Spring washer 6mm HT6R018A 2 2 2 HT8R018A 2 2 2

18b Bolt Hex 5mm HT6R018B 1 1 1 HT8R018B 1 1 1

18c Spring washer 5mm HT6R018C 1 1 1 HT8R018C 1 1 1

19 Pan Head Screw HT6R019 8 8 8 HT8R019 8 8 8

20 Flat Washer HT6R020 8 8 8 HT8R020 8 8 8

20a Spring washer HT6R020A 8 8 8 HT8R020A 8 8 8

21 Base Cover HT6R021 1 1 1 HT8R021 1 1 1

WheelCoverOuterRight

HT6R022 1 1 1 HT8R022 1 1 1

23 Wheel Nut Right Hand HT6R023 1 1 1 HT8R023 1 1 1

24 Wheel Flange Outer HT6R024 2 2 2 HT8R024 2 2 2

25 Wire Wheel HT6R025 n/a 1 n/a HT8R025 n/a 1 n/a

25a G. Wheel - Coarse 6501088 1 n/a 1 6501110 1 n/a 1

25b G. Wheel - Medium 6501089 n/a 1 n/a 6501024 n/a 1 n/a

25c G. Wheel - Fine 6501135 1 n/a 1 6501130 1 n/a 1

26 Wheel Flange Inner HT6R026 2 2 2 HT8R026 2 2 2

27 Wheel Cover HT6R027 2 2 2 HT8R027 2 2 2

28 Wheel Cover Inner Right HT6R028 1 2 2 HT8R028 1 1 1

29 Tool Rest Right Hand HT6R029 1 1 1 HT8R029 1 1 1

30 Flat Washer HT6R030 4 4 4 HT8R030 4 4 4

30a Spring washer HT6R030A 4 4 4 HT8R030A 4 4 4

31 Screw Hex HT6R031 4 4 4 HT8E031 4 4 4

32 Bolt HT6R032 6 6 6 HT8R032 6 6 6

33 Flat Washer HT6R033 12 12 12 HTR033 12 12 12

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