4. OPERATION
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WARNING! Before operating the hacksaw ensure that you read, understand and apply the safety instructions in Section 1.
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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.
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WARNING! The machine is designed for the cutting of light metal in engineering workshops, garages, metal fabricators, etc. The
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SM16/1, SM17/1 & SM18/1 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.
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WARNING! Ensure that the saw is disconnected from the power supply before making any adjustments.
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4.1.
Set up checks
4.1.1. Check the saw thoroughly before using it. Ensure the guards are correctly fitted and that the moving parts are secure and in working
order.
4.1.2. Raise the saw arm as far as possible.
4.1.3. Place the work piece in the vice, set the length bar as required and clamp the work piece securely. For angled cutting, see paragraph 4.2.
4.1.4. If cutting mild steel, turn on the coolant supply tap (models SM17/1 and SM18/1 only) and direct the coolant nozzle towards the area of
the workpiece that will be cut.
Note: Ensure the oiler is correctly set and that oil has been applied to the five oil caps before starting the saw.
4.1.4. Connect the machine to the mains power supply.
4.1.5. Start the machine and the arm will automatically lower and start cutting.
4.1.6. When sawing is completed the saw will switch off automatically, disconnect from the power supply, raise blade and remove workpiece.
Never raise blade when machine is running .
4.2.
Vice setting
4.2.1. The vice is locked at 0º but can be set to any angle up to 45º.
4.2.2. To set an angle on the vice, remove the centre bolt fig.2.C and vice clamp bolt fig.2.D.
4.2.3. Loosen the vice swivel bolt fig.2.A and the vice clamp bolt fig.2.B.
4.2.4. Set the vice to the required angle and tighten vice swivel bolt fig.2.A and the vice clamp
bolt fig.2.B.
4.2.5. Loosen the free vice clamp bolt fig.2.E.
4.2.6. Place the work piece in the vice and wind the free vice closed until it grips the workpiece.
4.2.7. Tighten the free vice clamp bolt fig.2.E and ensure the workpiece is securely clamped.
4.2.8. Where the length of the workpiece to be secured is half the width if the vice, or less,
adjust the bolt on the free vice so that it touches the fixed vice face, as shown in fig.3.
4.2.9. The saw bed provides an alternative pair of mounting holes for the fixed side of the
vice. To use these holes, remove the centre bolt fig2.C, the vice clamp bolts fig.2.B & D
and the vice swivel bolt fig.2.A.
4.2.10. Position the fixed side of the vice on the saw bed such that the vice swivel bolt fig.2.A
is located through the vice and into the mounting hole fig.2.F.
4.2.11. Fit one of the vice clamp bolts fig.2.B or D through the vice and into mounting hole fig.2.G.
Note: When using these alternative mounting holes, the fixed vice does not have a 0º
lock facility. It is the responsibility of the operator to ensure that the fixed vice is at
the correct angle.
4.2.12. Set the vice to the required angle and secure by tightening the vice swivel fig.2.A and
clamp bolt fig.2.D.
Note: Use of these alternative mounting holes can lengthen the life of the saw blades.
5. MAINTENANCE & ADJUSTMENTS
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WARNING! BEFORE CARRYING OUT ANY MAINENANCE OR MAKING ANY
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ADJUSTMENTS, DISCONNECT SAW FROM POWER SUPPLY.
5.1.
Cleaning
5.1.1. Clean saw after each operation and smear unpainted surfaces with oil to prevent rusting.
5.2.
Replacing the saw blade
We recommend you keep a small supply of commonly used saw blades to hand.
Change saw blades frequently for best results. Ensure you choose a blade with a
pitch suitable for workpiece to be cut.
5.2.1. Disconnect the machine from the power supply.
5.2.2. Loosen the two screws, fig.4.A, holding the fixed plate on.
5.2.3. Undo the two locking nuts, fig.4.B and release the tension in the blade.
5.2.4. Undo the two blade retaining screws, fig.4.C and remove the blade.
5.2.5. Fitting the new blade is the reverse of the procedure in paragraphs 5.4.1. to 5.4.3.
5.2.6. Tension the blade as described in paragraph 5.5.
5.3.
Blade tension
5.3.1. Test the blade tension by flicking the blade. The blade should make a sharp pinging
sound if it is correctly adjusted.
5.3.2. To adjust the blade tension, turn the lock nuts fig.4.B. Do not over tighten.
5.4.
Blade stroke adjustment
5.4.1. Disconnect the machine from the power supply.
5.4.2. The sawblade stroke can be adjusted ±60mm.
5.4.3. Remove the six self tapping screws in the guard, fig.1.C and fold it down.
5.4.4. Loosen the nut on the inside of the gear wheel, fig.5.
5.4.5. To shorten the stroke, slide the bow saw towards the centre of the gear wheel and to
lengthen the stroke, slide the bow saw towards the outside of the gear wheel.
5.4.6. Tighten the nut on the inside of the gear wheel, fig.5.
5.4.7. When satisfied that the adjustment is accurate, carefully turn the pulley by hand
to see if the blade snags or rubs at any point. Readjust stroke if necessary.
5.4.8. Fold the guard into position and refit the six screws removed in paragraph 5.4.3.
Fig.2.
Fig.3.
Fig.4.
SM16/1, SM17/1 & SM18/1 - 1 - 020103
Fig.5.
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