Charnwood BS410 User manual

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10” BANDSAW
OWNERS MANUAL
MODEL: BS410
Charnwood Machinery Ltd, Cedar Court, Walker Road,
Hilltop Industrial Estate, Bardon Hill, Leicestershire, LE67 1TU
Tel. [phone] Fax. [phone]
email: [e-mail] website: www.charnwood.net

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GENERAL SAFETY RULES
WARNING: Do not attempt to operate the machine until you have thoroughly read 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 from the work area.
8. Make workshop childproof. Use padlocks, master switches and remove starter keys.
9. Do not force the machine. It will do the job better and be safer at the rate for which it is designed.
10. 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.
11. 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.
12. Always use safety glasses. Normal spectacles only have impact resistant lenses. They are not safety
glasses.
13. Do not over-reach. Keep proper footing and balance at all times.
14. Maintain the machine in good condition. Keep the machine clean for best and safest performance.
Follow instructions for lubrication and changing accessories.
15. Disconnect the machine from power source before servicing and when changing the blade.
16. Never leave the machine running unattended. Turn the power off. Do not leave the machine until it
comes to a complete stop.
17. Do not use any power tools while under the effects of drugs, alcohol or medication.
18. 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.

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ADDITIONAL RULES FOR BAND SAWS
1. Ensure that the saw table is clear of off-cuts, tools or anything else that might foul the work-piece.
2. When cutting long boards use one or more roller stand(s) to support the work or have a competent
helper to support it as it feeds off the rear of the table.
3. Always make sure that the blade is tracked and tensioned correctly before starting to use the saw.
4. Always use a brush to clear the table of dust or debris. NEVER use your hands, especially when the
machine is running.
5. Always ensure that the thrust bearings and guide blocks are correctly adjusted before using the saw.
6. ALWAYS USE A PUSH STICK WHEN IT IS NECESSARY TO PUSH ANY PIECE OF MATERIAL OF
SUCH SIZE THAT IT WOULD BRING YOUR HANDS WITHIN 30 CM OF THE BLADE.
7. Do not cut material that is badly warped or which has screws or nails in it.
8. Be extra vigilant when cutting stock which has loose knots in it as these my fly out of the saw.
9. NEVER tilt the table when the saw is running.
10. To avoid exposure to hazardous dust, do not use this saw without connecting it to a suitable dust
extractor.
11. Always work with a sharp saw blade and feed the work at a rate suited to the thickness and hardness of
the material.
Note: This band saw has been designed and built solely as a woodworking machine. Do not modify it in any
way or use it for anything other than its designated purpose. Neither the manufacturers nor the supplier are
liable for any damage or injury caused by incorrect assembly, operation or electrical connection of this
machine.
Risk of Injury! Wear Eye Wear Ear
Never reach into Protection Protection
Moving parts
BS410 Specification
Table size
340 x 335 mm
Table Size with Extension
490 x 335 mm
Motor 240v / 50Hz
370W (1/2hp)
Blade length
1712 mm (67-1/2”)
Blade speed (no load)
Blade widths
730±10% m/min
6 to 13 mm (1/4”to 1/2”)
Maximum depth of cut at 90o
100mm (4”)
Throat capacity
240mm (10”)
Dust extractor hose connection
100mm (4”)
Weight
32kg net / 34kg gross
Rating
Hobby
Warranty
1 Year
Hobby Rating –Suitable for weekend DIY’ers and woodworking enthusiasts. Refers to 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 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.

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Unpacking The Bandsaw
Cut the strapping and remove the
polystyrene insert from the carton.
Remove all parts from the packaging,
look underneath the packaging too.
Layout the parts as shown to check they
are all present.
Please Note: As a safety feature, this model is
fitted with micro switches on both upper and
lower doors. The machine will not operate
unless both doors are closed and locked.

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Assembling The Bandsaw
Pull the table extension out so you can
slot the table into place on the trunnion.
Line up the four threaded holes in line
with the holes in the upper trunnion.
Use the four bolts attach the table to the
trunnion, leaving the bolts slightly loose.
Carefully place a steel rule against the
side of the blade, in the gap between 2
of the teeth.
Set the table parallel to the blade.
Twist the table on the trunnion until the
rule is aligned with the table slot.
Fully tighten the four bolts holding the
table to the trunnion.
Screw four wing bolts with washers, 2
turns into the tapped holes in the
underside of the table.
Slide the rip fence carrier over the bolts.
Ensure the carrier fits firmly up against
the front edge of the table.
Any gap in this fit will result in the rip
fence will not being correctly aligned
with the blade.

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Check the blade is centred in the table
insert slot without interference.
If the blade is offset to one side or the
other, it can now be adjusted.
The lower trunnion is attached to the
body of the saw by four hex headed
bolts.
These may be slackened and the
trunnion slid in either direction until the
blade is centred.
After adjustment, tighten them securely.
The locking lever locks and unlocks the
trunnion so that the table may be tilted.
Adjustable pointer
Table Angle Locking Lever

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Having set the table so that the blade is
centred, apply a little tension to the
blade and use a set square to position
the table at right angles to it.
Lock it in position and if necessary, set
the adjustable pointer so it aligns with
zero.
Adjust the table support bolt, so it
touches the top of the lower machine
frame.
Fix it in place using the lock nut.
This allows the table to be quickly and
accurately reset to 90 degrees after
tilting the table.

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Setting Up The Bandsaw
Blade tensioner adjuster
Blade tensioner quick release lever
Blade guard adjuster and lock
Blade Tracking control adjuster and lock
Set the Blade Tension
Make sure the blade tension quick
release lever is in the down position.
The blade tension indicator is to be used
as a guide.
Press the side of the blade here to check
the tension. Adjust the tension until the
blade can be deflected sideways by 3 to
5mm with finger pressure.
To increase tension, turn the adjuster
clockwise.
To decrease tension, turn the adjuster
anti-clockwise.
In future, when removing a blade, use the
quick release lever to take the tension off
the blade. After fitting the new blade use
the quick release lever to add the tension
back.
If the blade is a different width to the
previous one, you may then need to use
the tension adjuster to fine tune the blade
tension up or down.

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Set the Blade Tracking
Unlock the adjuster using the wingnut.
By hand, slowly rotate the bandsaw
upper wheel clockwise. If the blade starts
to move forward or backwards on the
wheel adjust the tracking control until the
blade is balanced.
The blade can sit in the centre of the
rubber tyre or with the tips of the teeth
projecting over the front end.
Lock the wingnut to set this position.
Repeat this process whenever the blade
is changed.
Set The Upper Blade Guides
The upper and lower thrust bearings and
guide bearings should be set up next.
Rear thrust bearing
Rear thrust bearing locking knob
Guide bearing
Guide bearing locking knob
The thrust bearing should be set 0.5mm
off the back of the blade. Adjust and lock
it in place.
The guide bearings should be set 0.5mm
off the sides of the blade. Adjust and lock
them in place.
Set The Lower Blade Guides
Guide Bearing
Guide Bearing Locking Screw
Rear Thrust Bearing
Rear Thrust Bearing Locking Screw
The thrust bearing should be set 0.5mm
off the back of the blade. Adjust and lock
it in place.
The guide pins should be set 0.5mm off
the sides of the blade. Adjust and lock
them in place.

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Set The Rip Fence Scale
Fit the rip fence to the table. Use a ruler
to measure the distance between the
blade and the fence.
Slide the scale left or right to adjust the
scale to match the measurement you
have taken.
Scale Locking Screw
Set The Drive Belt Tension
At the rear of the bandsaw, loosen (but
do not remove) the two bolts holding the
motor, using a Hex key.
Pivot Bolt
One bolt passes through a slotted hole in
the mount allowing the motor to rotate
around the pivot bolt.
Apply pressure to the top of the motor,
rotating it to increase drive belt tension.
Tighten the slotted bolt first, then the
pivot bolt.
Slotted Bolt
Open the lower door.
Check the drive belt tension by pressing
the belt.
When set correctly the belt should deflect
by approximately 5mm when using
moderate pressure.
Tip: If you are experiencing a lack of
cutting performance, the blade is easily
stalled or there is a squealing sound
under load, it might be necessary to
increase tension on the drive belt.

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Your bandsaw is now ready for use.
It is recommended that the saw is bolted to a bench and a suitable dust extractor attached.
Making A Cut
For every type of cut, the blade guard should be lowered so that the bottom edge of the guard
is just above the work piece. This is for safety and to better control the blade during the cut.
Always use a push stick so that you keep your fingers at least 30cm from the blade.
Rip Fence Blade Guard Mitre Fence
Straight Rip Cuts
Ripping cuts are generally made using the guide fence and run along the grain of the timber.
The rip fence may be used on either side of the blade.
Crosscutting
Cutting across the grain is generally done using the mitre fence.
The rip fence may be used as a length stop for repetitive cross or mitre cuts.
Cutting Curves
The bandsaw can be used to cut curves freehand. The diameter of the curve you can cut depends
on the width of the blade. A narrower blade can cut tighter curves than a wide blade. The table
below gives a guide.
Blade Width Minimum Diameter
6mm (1/4”) 60mm (2.1/2”)
10mm (3/8”) 100mm (4”)
13mm (1/2”) 130mm (5”)
Note: Once you have cut curves with a blade, the set (angle) of the teeth will have changed.
After having cut curves with a blade it will not cut so accurately in a straight line. Ideally you should
keep one blade only used for straight cuts and a separate blade for curved cuts.

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Replacing The Blade
Dust Extraction
When you notice the cutting performance of
the bandsaw starts to deteriorate it is time to
replace the blade.
Bandsaw blades are sharp enough to cause
injury even when too blunt to cut wood! It is
recommended that protective gloves be worn
when handling blades.
1) Unplug the bandsaw from the electric
supply
2) Reduce the blade tension by moving the
quick release lever into the up position
3) Open the upper and lower doors
4) Lower the blade guard
5) Remove the rip fence
6) Remove the rip fence carrier
7) Slide the blade off the wheels, bringing it
forward out of the machine via the slots in
the frame, blade guard and table.
Reverse these steps to fit the new blade.
Ensure that the teeth are at the front and
pointing down.
Position the blade between the blade guide
bearings.
Tension and adjust the blade tracking as per
the instructions in the ‘Setting up the
bandsaw’section of this manual.
Check, and adjust if necessary, the position
of the two thrust bearings and side bearings.
It is strongly recommended that a suitable
dust extraction unit is used with this machine
at all times.
100mm Diameter Dust Extraction Port

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Troubleshooting
Problem
Cause
Remedy
Machine does not start
Blown Fuse
Replace Fuse
Loose switch terminal
Inspect back of switch
Faulty switch
Replace switch
Door Switch not made
Close and lock doors
Only starts when Green
button is held down
Faulty switch
Replace switch
Motor slows down during
operation
Loose belt
Tighten Belt
Blade is blunt
Replace blade
Feed Speed is Too high
Feed the Work slower, let the
blade do the cutting
Attempting to take too deep a
cut
It may exceed the capacity of
the machine
Machine does not run but
buzzing noise heard from
motor
Failed capacitor
Replace the motor start
capacitor.
Declaration of Conformity for CE Marking
Charnwood Declare that Woodworking Bandsaw, Model BS410
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. BM
50331328 and AE 50349294 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: 29/04/2016 Location: Leicestershire
Richard Cook, Director
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

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BS410 Parts Diagram
Optional Floor Stand

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BS410 10” Bandsaw Parts List

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Updated September 2019
Charnwood, Cedar Court, Walker Road,
Hilltop Industrial Estate, Bardon Hill, Leicestershire, LE67 1TU
Tel. [phone] Fax. [phone]
email: [e-mail] website: www.charnwood.net