MK Diamond Products MK-2013 HE, Owner'S Manual

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MK-20 SERIES Revision 09/06, Effective Date September 18, 2006
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B
aligning the saw with a marked line
Refer to the figure below. Push the saw forward and approach the marked line at an angle. Stop when the distance from the rear edge
of the saw frame to the line (distance A) and the distance from the pointer to the line (distance B) are approximately equal. Lift the
rear wheels slightly off the ground by lifting on the handles and swing the rear of the saw around until the pointer is on the line and the
saw frame is parallel to it. Do not tilt the saw too far forward to keep the blade from contacting the concrete. The saw should now be
aligned with the marked line. Practice will fine tune this method. Critical to this method of alignment is to ensure that the saw pointer is
properly aligned (see alignment procedures).
With the engine running at half-throttle. Open the water valve to full open. Check to verify that the water is flowing fully. Adjust the
amount of water flowing on the blade to a desired amount.
After adjusting the flow of water increase to proper throttle setting. Lower the blade into the cut by slowly turning clockwise on the
depth control wheel. If the water supply is interrupted,
stop cutting immediately.
When the desired depth of cut is reached, lock the control wheel in position with the depth control locking knob. During cutting, do not
exert excessive side pressure on the handle bars to attempt to steer the saw. Use only enough pressure to follow the original marked
line.
starting a cut
If the saw should stall for any reason, raise the blade out of the cut before restarting the engine!
When lowering the blade into a partially made cut, the blade must be perfectly aligned within the cut before starting to saw again. DO
NOT force the blade into the material by lowering the blade too fast.
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sawing a straight line
The following items should be considered for best economy and efficiency in sawing:
With the water on, engine at the correct throttle setting, and the blade lowered, push the saw forward referring to the pointer
alignment.
The saw has a natural tendency to pull towards the side on which the blade is mounted. To assure straight line cutting, apply
pressure to the appropriate handle. If excessive pressure is required back off on the forward speed of the saw. If excessive pressure
is still required to make the saw travel straight, the saw may need to have the arbor shaft adjusted.
Avoid sudden corrective actions when the saw deviates from the intended line of cutting. Sudden and severe corrections can cause
the blade to be damaged or broken.
If the saw stalls in the cut, raise the blade out of the cut and check the blade shaft nut before restarting the engine.
Always raise the blade completely out of the cut before stopping the engine or turning off the water supply.
When sawing joints, be careful not to let the blade cut into the forms.
The forward speed of the saw, during cutting, should be regulated by the operator. Driving the saw too fast while cutting may cause
the front wheels to lift causing the blade to cut at uneven depths.
The three controlling factors of cutting economy are:
1. Depth of cut
2. Forward speed of the saw (with the engine at proper throttle)
3. Blade cutting ability
Experimental adjustment of these items, with respect to the aggregate being cut will result in the best cutting economy.
As new blades wear, the cutting ability usually improves. It is best to start at a slow forward speed with a new Blade and work up to a
desired cutting speed gradually.
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