MK Diamond Products MK-4018HY, Operator'S Manual

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MK-4000 SERIES OPERATION
WARNING
The blade is spinning whenever the saw is running. Raise the blade as high as possible when maneuvering so
that the blade will not strike the pavement.
Dry cutting blades have been specially designed for use with concrete saws. Ensure that the blade you are using
is clearly marked for dry cutting.
When dry cutting, it is important to keep the air filter clean. Check the condition of the filter at least every
four (4) hours of operation. Clean the pre-filter (wash in soapy water and re-oil) and change the paper filters
as soon as it becomes clogged. Concrete dust is very abrasive and will quickly damage internal engine parts,
causing loss of compression and eventual engine failure.
Saw only as deep as the specifications and job conditions require. Remember airflow helps to cool the blade
during dry cutting. Cutting too deep with one pass, or exerting excessive forward or side pressure can be dan-
gerous. Step cut in increments of 1 inch (25 mm) or less, for the best results.
If reinforced abrasive blades are used for cured concrete, it is usually better to saw only 1 inch deep per pass. If
deeper cuts are required, cut in multiple passes.
Thinner Diamond Blades are especially advantageous when cutting dry.
MANEUVERING THE SAW
DRY CUTTING
WET CUTTING
The water used on the blade is to provide coolant during cutting and to flush the concrete cutting from the
cut.
FNR HANDLE
The FNR Handle moves the saw forward by pushing the lever away from the operator and moves the saw in
reverse by pulling the lever toward the operator. The further you push this lever, the faster the saw travels.
RAISE/LOWER HANDLE
WARNING
Before starting the engine, place this lever in
NEUTRAL.
The raise/lower handle controls the depth of the blade. When pulled back, the electric/hydraulic pump will
raise the blade out of the cut. When pushed forward the blade will lower. The lowering speed is faster, the far-
ther forward the lever is pressed.