Clarke CBG6RP Installation and operation manual

BENCH GRINDER
MODEL CBG6RP
OPERATING & MAINTENANCE
INSTRUCTIONS
0101

Thank you for purchasing this CLARKE Bench Grinder
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 it giving you long and trouble free service.
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
Pre Assembly Check ............................................................................... 4
Electrical Connections, Fuse Rating ..................................................... 5
Assembly, (Eyeshield and Toolrest) ....................................................... 6
Maintenance (incl. changing the grinding wheel) ............................ 7
Technical data ........................................................................................ 7
Parts List and Diagram ............................................................................ 8
GENERAL SAFETY RULES
1. KEEP GUARDS IN PLACE and check they are not damaged.
2. REMOVE ADJUSTING KEYS AND SPANNERS. Make a habit of checking to see
that all adjusting keys and spanners are removed from the 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.
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8. WEAR THE PROPER APPAREL. No loose clothing, neckties, rings, bracelets, or
any other jewellery which might get caught in moving parts.
Non-slip footwear is recommended. Wear protective hair covering to contain
long hair.
9. ALWAYS USE SAFETY GOGGLES. Everyday glasses only have impact resistant
lenses, they are not safety glasses. Also use a face mask if grinding operation
is generating a lot of dust.
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. REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in the OFF
position before plugging in.
13. CHECK FOR DAMAGED PARTS. Before further use of tool, any damaged part
should be carefully inspected and checked to determine that it will operate
properly and perform its intended function. Check for alignment of moving
parts, binding of moving parts, mounting, and any other damage that may
affect its operation. A guard or other part that is damaged should be properly
repaired or replaced. If in any doubt contact your local dealer.
ADDITIONAL SAFETY RULES FOR BENCH GRINDERS
1. Replace a cracked wheel immediately.
2. Always use guards and eyeshield.
3. Do not overtighten the wheel nut.
4. Adjust distance between wheel and tool rest to maintain 1/16” (1.6mm) or less
separation, 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 slightly to one side of the bench grinder during operation, not facing
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. NEVER 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 over stress the grinding wheel.
11. NEVER LEAVE A GRINDER RUNNING UNATTENDED. TURN POWER OFF. Do not
leave tool until it comes to a complete stop.
12. USE ONLY APPROVED REPLACEMENT GRINDING WHEELS. Contact your local
dealer or Clarke International for approved replacement grinding wheels
and accessories. The use of inferior accessories may cause risk of injury.
13. Never use the side of the grinding wheel. Use only the front face.
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PRE-ASSEMBLY CHECK
Before assembling your Bench Grinder, please check to ensure that all the parts,
shown below, have been included.
Note: if any parts are missing or damaged, please contact your local dealer or
Clarke International for replacement.
1. Main Body (A) - switch and power cable with plug are included.
2. Two Eye Shields (B), each complete with:
1 x nut,
1 x bolt,
1 x spring washer
2 x flat washers.
3. Two Spark Arrestor brackets (C), each complete with:
1 x screw,
1 x spring washer
1 x flat washer.
4. Two Tool Rests (D) - Left and Right hand , each complete with:
2 x screws,
2 x spring washers
2 x flat washers.
4

ELECTRICAL CONNECTIONS
Connect the mains lead to a standard, 240 volt (50Hz) electrical supply through a
fused good quality (rubber preferred)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 strongly 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 onto 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, an
electrical stockist, or CLARKE INTERNATIONAL Spare Parts Department
5. The fuse in the plug must be replaced with one of the same rating and this
replacement must be ASTA approved to BS1362.
5

ASSEMBLY
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Fig.3
Fig. 2
Fig. 1
1. Fix the Tool Rests, with the screws
and washers provided, in the
manner shown in Fig.1. The Tool
Rests are adjustable and should be
positioned 1/16" (1.6mm) from the
grinding wheels. Ensure that the
Tool Rest is firmly fixed and
horizontal.
2. Assemble the Spark Arrester
brackets onto the wheel guards,
using the screws and washers
provided, in the manner shown in
Fig.2.
NOTE: Before fully tightening the screws,
each bracket should be adjusted by
sliding it as close to the grinding wheels
as possible, without impairing the wheels
rotation. As the wheel wears down with
use, it will be necessary to re-adjust the
park Arrester brackets in order to
maintain a gap between the spark
arrester and the bracket. This gap should
never be allowed to become greater
than /8” .
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 for the Eye Shields can be
adjusted to suit the operator.
4. We recommend that your Clarke
Bench Grinder is secured to your
workbench before operation, using
the pre-drilled holes in the base. Do
not overtighten the mounting bolts
as this could damage the plastic
base.

MAINTENANCE
(A) EYESHIELD and SPARK ARRESTER BRACKET ADJUSTMENT
The see-through eye shields allow the user to see the operation clearly and to work
precisely. The eye shields can be adjusted up and down to suit operator.
The Spark Arrester brackets should be adjusted so that they are as close as possible
to the wheel without impairing the wheels rotation.
IMPORTANT: Even though the Eye Shields are fitted, you should nevertheless
ALWAYS wear safety goggles when operating a grinding machine.
(B) TOOLREST ADJUSTMENT
The appropriate adjustment of the Tool Rests provides the operator with a correct
working angle and a firm and efficient base for working. Adjustments can be
made by loosening the mounting screws and moving the Tool Rest to within 1/16”
(1.6mm) from the wheel. Due to the wear on the grinding wheel, it will be
necessary to adjust the Tool Rests from time to time. Always re-tighten the
mounting screws once adjustment is complete.
(C) CHANGING THE GRINDING WHEEL
To renew or change the grinding wheels, follow the steps given below.
1. Switch off and un-plug from mains power supply. Disassemble outer covers,
left or right, by removing the three cover retaining nuts, bolts and washers.
2. Slacken the Spark Arrester bracket and Tool Rest mounting screws, and pull
the bracket and Tool Rest away from the wheel.
3. Hold the grinding wheel firmly and remove the nut and flange from the shaft,
noting that the left hand wheel nut has a left hand thread.
4. Take off the used wheel and replace with the new one, ensuring:
a. the paper blotters are in place either side of the wheel.
b. that there is a good balanced rotation of the grinding wheel, and
c. you do not overtighten the wheel nut.
5. Readjust the Tool Rest and Spark Arrester Brackets as described above.
6. Switch ON the machine and allow it to rotate freely for at least one 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 No. GWD-1. Part No. 6501120.
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TECHNICAL DATA
Motor ........................................................................... 230v ~ 50hz; 1ph
Speed .......................................................................... 2900 RPM
Power Rating .............................................................. 150Watts
Wheel Size ................................................................... 150 X 20 X12.7 Mm
Fuse Rating ................................................................. 5 Amps
Wheels ......................................................................... 1 X Fine; 1 X Coarse
Part No. ....................................................................... 6500520
Weight (Packed) ........................................................ 8 kg
Duty Cycle .................................................................. 5/5 Min.*
*This machine may be operated for 5 minutes in any 10 minute period.

No. Description Part No.No. Description Part No.
1Bolt HT6481901
2Washer HT6481902
3Outer Cover LH HT6481903
3A Outer Cover RH HT6481903A
4Wheel lock nut LH HT5481904
4A Wheel lock nut RH HT5481904A
5Wheel Flange HT5481905
76” G - Wheel (Coarse) 6501088
7A 6” G - Wheel (Medium) 6501089
7A 6” G - Wheel (Fine) 6501135
8Middle Ring HT6481908
9Screw HT5481909
10 Spring Washer HT5481910
11 Inner Cover LH HT6481911
11A Inner Cover RH HT6481911A
12 Screw HT5481912
13 Screw HT5481913
14 Spark Arrester Bracket HT6481914
15 Eyeshield HT6481915
16 Spring Washer HT6481916
17 Nut HT6481917
18 Power Cable HT5481918
19 Cable Clamp HT5481919
20 Capacitor HT5481920
21 Screw 3040528
22 Spring Washer 3040582
23 Flat Washer 3044576
24 Tool Rest LH HT6481924
24A Tool Rest RH HT6481924A
25 Screw HT6481925
26 Bearing HT5481926
27 Circlip HT5481927
28 Main Body End Cover HT5481928
29 Rotor / Main Shaft HT5481929
30 Stator HT5481930
31 Main Body (Centre) HT5481931
32 Base HT5481932
33 Bottom Plate HT5481933
34 Switch Assy. HT5481934
35 Rubber Foot HT5481935
36 Screw HT5481936
37 Grommet HT5481937
38 Flat Washer HT5481938
39 Screw HT5481939
40 Screw HT5481940
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PARTS LIST
PARTS & SERVICE TEL: [phone]
PARTS & SERVICE FAX: [phone]
or e-mail as follows:
PARTS: [email protected]
SERVICE: [email protected]
For Spare Parts and Service,please contact your nearest dealer,
or CLARKE International, on one of the following numbers.

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PARTS DIAGRAM