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MQ SP4030 SAW • OPERATION MANUAL — REV. #0 (01/22/09) — PAGE 25
SPECIFIC TOOLS TO BE USED
This saw is to use tools (blades) as follows:
Steel core segmented or continuous diamond rim cutting
wheel
Any other type of tool is not to be used.
SAW BLADES
1. Drive Pin Hole — A commonly located hole on the
diamond blade core that prevents operational blade
slippage between the inner & outer blade flanges
(collars). Inspect the diameter of the hole to ensure
there is no distortion, and that a snug fit develops
between the hole and drive pin.
2. Stress Relief Holes (Gullets) — Check the steel core
for cracks that may have propagated from the slots
and/or gullets. Cracks indicate extreme fatigue failure,
and if sawing continues, catastrophic failure will occur.
3. Edge of the Steel Core — Check the diameter edge
for discoloration (blue oxidation) indicating an
overheating condition caused by insufficient cooling
water/air. Overheating of blades may lead to loss of
core tension and/or increase the possibility for blade
failure. Check to make sure the steel core’s width is
uniform about the rim of the blade and not succumbing
to an “under cutting” condition brought about by highly
abrasive material or improper under cutting core
protection.
4. Directional Arrow — Check to ensure that the blade
is oriented properly on the spindle for sawing. Reference
the directional arrow on the blade and place it so the
direction of rotation “downcuts” with the turn of the shaft.
5. Diamond Segment or Rim — Ensure there are no
cracks, dings, or missing portions of the diamond
segment/rim. DO NOT
use a blade that is missing a
segment or a portion of
the rim
. Damaged and/or
missing segments/rims may cause damage to your
saw and injury to the user or others in the operating
area.
6. Specifications — Ensure that the blade specifications,
size, and diameter properly match up to the sawing
operation. Wet blades must have water to act as a
coolant. Utilizing a diamond blade not matched properly
to the task may result in poor performance and/or blade
damage.
7. Arbor Hole — It is essential that the arbor hole diameter
properly matches the shaft arbor, and that it is free
from distortions. Correct blade flanges (collars) must
be used. The inside face of the flanges must be clean
and free of debris. An out of round arbor condition will
cause damage to the blade and the saw.
8. MAX RPM — This RPM reference is the maximum
safe operating speed for the blade selected. NEVER
exceed the max RPM on the diamond blade. Exceeding
the MAX RPM is dangerous and may cause poor
performance and may damage the blade. All blades
used must be designed for the maximum spindle RPM.
WARNING — Inspect Diamond Blade
Failure to thoroughly inspect the diamond blade (Figure
8) for operational safety could result in damage to the
blade or the saw and may cause injury to the user or
others in the operating area. Discard damaged or worn
blades and replace with fresh blade.
Figure 8. Diamond Blade
SPECIFIC TOOLS / SAW BLADES