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P R E - O P E R AT I O N C H E C K L I S T
Figure 1 - Warning label - read and understand manual
5.1
Start by reading the entire Owner’s Manual, Rx for Diamond
Blade Safety, and Rx for Concrete Saws by the Masonry and Concrete
Saw Manufacturers Institute. Then, read the entire MC-45 operations
and maintenance manual. Get familiar with the machine’s parts. See
Figure 1 through Figure 32.
WARNING:
Improperly maintaining the MC-45 failing to correct a
problem before operation could cause a malfunction resulting in
a serious injury. Always perform a pre-operation inspection before
each operation and correct any problem.
5.2
Observe the condition of your work environment. Walk over
area work area and look for hazards. Make sure the work environ-
ment is safe and meets all safe-working conditions discussed in
section 4, Rules for safer operation.
TO PREVENT SERIOUS INJURY DO NOT OPERATE SAW WITHOUT PROPER
TRAINING AND. UNDERSTANDING OF THE OWNERS MANUAL
WHEN OPERATING THIS MACHINE
6
Keep all guards
in place
Wear Head Protec-
tion, breathing pro-
tection, and the use
of hearing protection
is mandatory
Flying debris
and loud noise
hazards. Wear
ear and eye
protection
Wear hand
protection
5.3
Obtain SAFETY DATA SHEET (SDS) for all work surface materi-
als. This includes primers, all coatings, adhesives, tile and crack filling
materials, etc. Do not attempt to cut, clean out, or remove material with-
out SDS information. Consult SDS sheet for health hazards information.
WARNING:
The
U.S.SAWS MC-45
maximum blade operating speed is
5000 rpm. Do not use a blade that is not a dry cut diamond blade.
Using a non dry cut diamond blade or a blade rated below 5000 rpm
could result in severe blade failure, personal injury or death. See
Figure 8 and Figure 9. Never cut material for which the blade was not
designed. Check blade manufacturer’s guidelines on material to be
cut. Never operate a blade in the wrong rotation direction. Verify blade
direction when changing blades. The
U.S.SAWS MC-45 i
s designed
to cut in a straight line. Never attempt to cut any pattern or follow
any joint that is not a straight line. This tool reduces the maximum
speed of blade to create more cutting power and reduce amperage
draw. Most 4”, 4.5”, 5 “ blades will have ratings up to 10,000 RPM.
Because of this speed change be sure to use recommend blades from
U.S.SAWS for consistent cutting results.
Surface Prep
Division
P: 877-817- 6687 F: 813-621-7125
Visit us at www.ussaws.com
5.0
PRE-OPERATION CHECKLIST
5000 MAX. RPM
Figure 8 - Max rpm label - maximum blade speed
5.4
Choose the proper dry cut diamond blade for the application,
speed and material to be cut. See Figure 9.
U
Usse
e o
on
nllyy d
diia
am
mo
on
nd
d b
blla
ad
de
ess ((sstte
ee
ell
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uttttiin
ng
g--o
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h tth
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e.. R
RP
PM
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n b
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usstt e
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ee
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e
m
ma
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Th
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e u
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h o
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uss
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Figure 2 - Warning label - use only diamond blades
5.5
Clearly mark all intended cut areas with straight paint or
chalk lines.
CAUTION:
Running the MC-45 generates heat in the motor, blade. Do
not touch these components without wearing proper heat protecting
work gloves.
