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3.2.2
Loosen the motor plate lock nuts (1) and untension the drive belt by turning the pulley tension adjuster anticlockwise. (2)
3.2.3
Move the belt to the required pulley grooves (see chart).
3.2.4
Re-tension the belt by turning the pulley tension adjuster clockwise. Tighten the motor plate locknuts.
Close the pulley cover and secure it with the socket cap screw (7).
4. OPERATION
WARNING! Before operating the bandsaw ensure that you read, understand and apply the safety instructions in Section 1.
NOTE: Before operating the machine certain checks and adjustments will need to be carried out. It is very important
that these instructions are followed carefully in order that the machine is set up safely and correctly.
WARNING! The machine is designed for light metal cutting work in engineering
workshops, garages, metal fabricators, etc. The SM4 must not be used to cut any
other materials (including wood). To do so will invalidate your insurance cover and
your warranty and may cause damage and/or personal injury.
Note: The harder the material being cut, the slower the cutting speed should be. The use of a
cutting oil is recommended with the higher blade speeds.
4.1
CUTTING AT 90°
4.1.1
Ensure that the saw is disconnected from the power supply.
4.1.2
Adjust the blade speed to suit the workpiece material (see para.3.3).
4.1.3
Lift the saw arm into the raised position.
4.1.4
Adjust the stock stop to the desired length. ( See B in fig.7)
4.1.5
Clamp the workpiece securely in the vice. If the workpiece has non-parallel sides the
clamping plate can be set at an angle. Loosen the hex socket cap bolt on the moveable
part of the vice and wind the clamping plate up to the workpiece where it will adjust
itself to the angle of the workpiece. For additional security retighten the clamping plate
bolt. To reset the clamping plate to 90° afterwards, loosen the clamp bolt and wind the
plate up to the fixed plate to align it. Re-tighten the clamp plate bolt.
4.1.6
Adjust the left hand blade guide assembly by loosening the clamp knob
(see fig.6), and sliding it as close to the workpiece as possible without fouling it.
Re-tighten the clamp knob. The right hand blade guide assembly is non-adjustable in
relation to the workpiece.
4.1.7
Reconnect the saw to the power supply.
4.1.8
Gently lower the arm until the blade is just above the workpiece before switching on.
4.1.9
Switch on and bring the blade into contact with the workpiece and then release the
arm. If the blade jams, switch off immediately and disconnect it from the power supply.
Refer to the TROUBLESHOOTING section for common problems.
4.1.10 When sawing is completed disconnect from the power supply, raise blade and remove workpiece.
4.2
CUTTING AT AN ANGLE (refer to figs.1 & 4)
4.2.1
The entire cutting arm can be rotated by up to 45° as shown in fig.4 to achieve an angled cut and can be
set at any angle between 90° & 45°.
4.2.2
Ensure that the saw is disconnected from the power supply.
4.2.3
Adjust the blade speed to suit the workpiece material (see para.3.2).
4.2.4
In the normal 90° cutting position the zero mark on the scale on the angle
plate (see fig.1) should be aligned with the fixed pointer (4). If this is not
the case loosen the angle clamp (5) and screw the adjuster (6) in or out
until until the zero and the pointer are aligned.
4.2.5
Before turning the cutting arm to an angle loosen the clamp on the stop
stock and turn it to point downwards away from the blade.
4.2.6
Before clamping the workpiece in the vice loosen the angle clamp and
swivel the cutting arm to the angle required and retighten the angle clamp (5).
4.2.7
Adjust the stock stop if required and then clamp the workpiece securely in the
vice as described above.
4.2.8
Reconnect the saw to the power supply.
4.2.9
Gently lower the arm until the blade is just above the workpiece before
switching on.
4.2.10 Switch on and bring the blade into contact with the workpiece and then
release the arm. If the blade jams, switch off immediately and disconnect
it from the power supply. Refer to the TROUBLESHOOTING section for
common problems.
4.2.11 When sawing is completed disconnect from the power supply, raise blade and
remove the workpiece.
WARNING! Never raise blade when machine is running and never run machine when blade is raised.
5. BLADE CHANGING & ADJUSTMENTS
WARNING! BEFORE MAKING ANY ADJUSTMENTS, DISCONNECT SAW FROM POWER SUPPLY.
5.1
All adjustments that relate to the smooth and safe running of the blade have been set at the factory. However, if you require to replace
a blade due to it being worn out or if you need to change to a blade with a different tooth size it will be necessary to readjust the saw.
5.2
CHANGING & TENSIONING THE BLADE :
WARNING! Take care when handling saw blades, blade teeth are very sharp.
5.2.1
Move the sawing arm to the raised position .
5.2.2
The blade safety cover is held on with three hex socket cap screws. Remove these screws and the safety cover.
Original Language Version
fig.3
SM4
Issue: 3 - 07/01/10
fig.4
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