Charnwood BG6 User manual

6” BENCH GRINDER
OWNERS MANUAL
MODEL: BG6
Charnwood Machinery Ltd, Cedar Court, Walker Road,
Bardon Hill, Leicestershire, LE67 1TU
Tel. [phone] Fax. [phone]
email: [e-mail] website: www.charnwood.net

GENERAL SAFETY RULES
WARNING: Do not attempt to operate the machine until you have read thoroughly and
understood completely all instructions, rules, etc. contained in this manual. Failure to comply
may result in accidents involving fire, electric shock, or serious personal injury. Keep this
owner's manual and review frequently for continuous safe operation.
1. Know your machine. For your own safety, read the owner's manual carefully. Learn its application and
limitations, as well as specific potential hazards pertinent to this machine.
2. Make sure all tools are properly earthed.
3. Keep guards in place and in working order. If a guard must be removed for maintenance or cleaning,
make sure it is properly replaced before using the machine again.
4. Remove adjusting keys and spanners. Form a habit of checking to see that the keys and adjusting
spanners are removed from the machine before switched it on.
5. Keep your work area clean. Cluttered areas and workbenches increase the chance of an accident.
6. Do not use in dangerous environments. Do not use power tools in damp or wet locations, or expose
them to rain. Keep work areas well illuminated.
7. Keep children away. All visitors should be kept a safe distance
8. from the work area.
9. Make workshop childproof. Use padlocks, master switches and remove starter keys.
10. Do not force the machine. It will do the job better and be safer at the rate for which it is designed.
11. Use the right tools. Do not force the machine or attachments to do a job for which they are not
designed. Contact the manufacturer or distributor if there is any question about the machine's suitability for
a particular task.
12. Wear proper apparel. Avoid loose clothing, gloves, ties, rings, bracelets, and jewellery which could get
caught in moving parts. Non-slip footwear is recommended. Wear protective hair covering to contain long
hair.
13. Always use safety glasses. Normal spectacles only have impact resistant lenses. They are not safety
glasses.
14. Do not over-reach. Keep proper footing and balance at all times.
15. Maintain the machine in good condition. Keep the machine clean for best and safest performance.
Follow instructions for lubrication and changing accessories.
16. Disconnect the machine from power source before servicing and when changing the blade.
17. Never leave the machine running unattended. Turn the power off. Do not leave the machine until it
comes to a complete stop.
18. Do not use any power tools while under the effects of drugs, alcohol or medication.
19. Always wear a face or dust mask if operation creates a lot of dust and/or chips. Always operate the tool
in a well ventilated area and provide for proper dust removal. Use a suitable dust extractor.
Risk of Injury: Never Reach Into A moving Part
Always Wear Eye Protection
Always Wear A Dust Mask
Always Wear Ear Protection

Overview of BG6 6”Bench Grinder
Work Light Magnifying Guard
Wheel Dresser
Guard
Grey Grinding
Disc (Coarse)
Work Table
Wing Nut White Grinding
Disc (Fine)
On Off Switch
Coolant Tray Work Table
Specification
Motor (Induction) 220v-240v, 50Hz
250w (0.33hp)
Maximum Continuous Runtime S2
30 minutes
No Load Speed
2850rpm
Spindle Diameter
12.7mm (1/2”)
Wheel Size (Grey)
150mm x 20mm (6” x 3/4”)
Wheel Grit (Grey)
36 grit
Wheel Size (White)
150mm x 40mm (6” x 1.5”)
Wheel Grit (White)
60 grit
Sound Pressure Level
69.9 db (A)
Sound Power Level
81.1 db (A)
Weight
10kg
Manufacturer’s Warranty
1 year
Rating
Hobby
Rating Description
Hobby: Suitable for Weekend DIY'ers and woodworking enthusiasts.
Generally lighter weight machines with lower power ratings and smaller tooling capacities. Typically only
ever used by one person for short periods of time or longer periods of time infrequently. Machinery should
be well maintained in a clean, dry environment such as a home workshop, garage or timber shed.
Expected maximum use of 100 hours annually.
Please Note: Using a product in excess of its rating will void the manufacturer’s free warranty.

Unpacking
All items are contained in one
cardboard carton.
Carefully unpack and check that all items
are included as in the photograph.
Assembly
Attach part #8 left hand spark guard
using the M4 x 10 pan head bolt, M4
locking washer and M4 washer.
The gap between the grey grinding
wheel and the bottom of the spark
guard should not exceed 2mm.

Attach part #11 left hand guard arm
using the M6 x 14mm Hex bolt and
M6 Washer.
Attach the Eye Guard Bracket onto
the Eye Guard using the 2 x M3
screws and nuts.
Slide the assembled part #30 eye
guard onto part #11 left hand guard
and tighten using the M6 nut.
Attach part #29 left hand table by
placing the lower slot over the lug and
then lock in place using the M8
wingnut and M8 washer.
The gap between the table and the
grey grinding disc should not be more
than 2mm.
It should be adjusted during the life of
the wheel to maintain this gap.
Attach part #69 right hand spark
guard using the M4 x 10 pan head
bolt, M4 locking washer and M4
washer.
The gap between the white grinding
wheel and the bottom of the bracket
should not exceed 2mm.

Attach part #20 right hand guard arm
using the M6 x 14mm Hex bolt and
M6 Washer.
Attach the Eye Guard Bracket onto
the Eye Guard using the 2 x M3
screws and nuts. Slide the assembled
part #63 magnifying eye guard onto
part #20 right hand guard and tighten
using the M6 nut.
Attach part #60 right hand table by
placing the lower slot over the lug and
then lock in place using the M8
wingnut and M8 washer.
The gap between the table and the
white grinding disc should not be
more than 2mm.
Spin the wheels by hand to make sure
they are not catching on the tables or
brackets.
Setting Up
Spin the wheels by hand to check they
run true.
If not, turn the grinder on and wait for it
run to full speed.
Wearing gloves, hold the wheel dresser
firmly onto the work table then move
forward lightly onto the grinding wheel,
without creating sparks.
Move sideways over the entire width of
the wheel.

Using The Grinder
To start the grinder, set the On/Off
switch position to: 1
Wait for the motor to reach its
maximum speed of rotation. Only then
should you begin grinding.
To stop the grinder, set the On/Off
switch position to: 0
Be aware the motor will take some
time to come to rest.
CAUTION: Do not touch moving parts.
Exert only moderate pressure on the
workpiece so that it can be machined
at constant speed.
Instead of accelerating your work,
high pressure will cause the drive unit
to slow down and even stop, thus
overloading the motor.
For your own safety, it is essential to
hold small pieces with a pair of locking
pliers.
Place the workpiece onto the
workpiece support and slowly guide
the workpiece towards the grinding
wheel at the desired angle, to the
point where the workpiece and
grinding wheel make contact.
Move the workpiece slightly back and
forth to produce an optimal grinding
result.
This way the grinding wheel will be
evenly worn.
Allow the workpiece to cool down
occasionally.

The machine includes an integral tray
which should be half filled with water.
If the ground edge turns bluish black it
is overheating and should be regularly
dipped into the cooling tray.
The white stone wheel is a material
designed to prevent heat building up
and should be used whenever heat is
an issue.
Maintenance
TO REPLACE THE GREY STONE
Disconnect from the power source.
Using a 10mm spanner remove the
three nuts from the stone guard cover.
Remove the side cover.
Grasp the stone using a cloth.
Use a 19mm spanner to loosen the
nut, remember undo the nut in the
direction of the stones rotation as
indicated by the arrow on the guard
cover.
Remove the plate flange and carefully
remove the stone.
Clean the interior of the stone guard.

Inspect the new stone for cracks and
damage to either the front face or the
edges before fitting.
Carefully slide the stone onto the
shaft, replace the plate flange, the nut.
Tighten against the rotation of the
stone.
CAUTION: Do not overtighten.
TO REPLACE THE WHITE STONE
Disconnect from the power source.
Using a 10mm spanner remove the
three nuts from the stone guard cover.
Remove the side cover.
Grasp the stone using a cloth.
Use a 19mm spanner to loosen the
nut, remember undo the nut in the
direction of the stones rotation as
indicated by the arrow on the guard
cover.
Remove the plate flange and carefully
remove the stone.
Clean the interior stone guard.
Inspect the new stone for cracks and
damage to either the front face or the
edges before fitting.
Carefully slide the stone onto the
shaft, replace the plate flange, the nut
and tighten against the rotation of the
stone.
CAUTION: Do not overtighten.

Troubleshooting
Problem
Cause
Remedy
Machine does not start
Blown Fuse in plug
Replace Fuse
Loose switch terminal
Inspect back of switch
Faulty switch
Replace switch
Ground Edge turns bluish
black
Edge has overheated
Regularly dip the edge into
water to cool it
Grey wheel creates more
heat
Switch to the white wheel
Wheels not running true
Wheels not dressed
Use dressing tool to true
wheels
Please dispose of packaging for the product in a responsible manner. It is suitable for recycling. Help to
protect the environment, take the packaging to the local amenity tip and place into the appropriate
recycling bin.
Only for EU countries
Do not dispose of electric tools together with household waste material!
In observance of European Directive 2002/96/EC on waste electrical and electronic equipment (EEE)
and its implementation in accordance with national law, electric tools that have reached the end of their
life must be collected separately and returned to an
environmentally compatible recycling facility.
Your local refuse amenity will have a separate collection area for EEE goods
Declaration of Conformity for CE Marking
Charnwood Declare that Bench Grinder, Model BG6
Conforms with the following Directives: Machinery Directive 2006/42/EC
EMC Directive 2014/30/EU
And further conforms to the machinery example for which the EC type examination Certificate No.
AM50360061 and AE50358706 have been issued by TUV Rheinland LGA Products GmbH, Tillystrasse 2,
90431 Nurnberg, Germany.
I hereby declare that equipment named above has been tested and found to comply with the relevant
sections of the above referenced specifications. The machinery complies with all essential requirements of
the directive.
Signed: Dated: 28/09/2019 Location: Leicestershire, UK
Richard Cook, Director

Charnwood BG6 Parts Drawing

Charnwood BG6 Parts List
Part No.
Description
Part No.
Description
001
Nut
002
Left Wheel Guard
003
Left Wheel Nut
004
Flange Washer
005
Grey Wheel 150mm x 20mm #36
006
Screw
007
Left Wheel Housing
008
Left Spark Deflector
009
Washer
010
Screw
011
Left Eye Guard Arm
012
Eye Guard Arm Bracket
013
M6 Washer
014
M6 Hex Bolt
015
Bolt
016
Eye Guard Bracket
017
M8 Washer
018
Screw
019
Screw
020
Right Eye Guard Arm
021
Motor Bracket
022
Nut
023
Spring Washer
024
Bearing
025
Motor
026
Shaft
027
Nut
028
Nut
029
Left Work Table
030
Left Eye Guard
031
M8 Wingnut
032
Bolt
033
Washer
034
Nut
035
Right Wheel Nut
036
White Wheel 150mm x 40mm #60
037
Nut
038
Washer
039
Screw
040
Right Wheel Housing
041
Grommet
042
Capacitor
043
Capacitor Bracket
044
Washer
045
Dressing Tool
046
Flexible Light Shaft
047
Motor Housing
048
Power Cable
049
Cable Strain Relief
050
Nut
051
Washer
052
Switch Housing
053
Switch
054
Nut
055
Screw
056
Washer
057
Rubber Foot
058
Coolant Tray
059
Base
060
Right Work Table
061
Washer
062
Bulb
063
Right Magnified Eye Guard
064
Dressing Tool Bracket
065
Washer
066
Washer
067
Screw
068
Right Wheel Guard
069
Right Spark Deflector
Updated April 2019
Charnwood Machinery Ltd, Cedar Court, Walker Road,
Hilltop Industrial Estate, Bardon Hill, Leicestershire, LE67 1TU, England
Tel. [phone] Fax. [phone]
email: [e-mail] website: www.charnwood.net