U.S.SAWS MC-45 Operating Manual Download Page 4

S A F E T Y  I N S T R U C T I O N S

4

Surface Prep
Division 

P: 877-817- 6687  F: 813-621-7125  

Visit us at www.ussaws.com 

[email protected]

4.1 

KNOW THE RULES & YOUR EQUIPMENT.

Most job sites have rules governing equipment use & maintenance. 
Before starting at a new work location, check with the supervisor or 
safety coordinator. Ask about any rules or regulations you need to 
abide.

OSHA enforces federal laws within the United States that apply to the 
safe operation, application, & maintenance of equipment on job sites. 
It is the employer’s responsibility to comply with these laws. 

Do not operate this machine unless you have read the operations and 
maintenance manual carefully. 

4.2 

RECEIVE PROPER TRAINING.

Do not operate this machine unless you have received operational and 
maintenance training from a U.S.SAWS representative or from an autho-
rized distributor for U.S.SAWS.

4.3 

PROTECT YOUR FEET.

Observe all applicable local, state and federal safety regulations. Wear 
OSHA approved foot protection.

4.4 

PROTECT YOUR EYES.

Observe all applicable local, state and federal safety regulations. Wear 
OSHA approved safety glasses.

4.5 

PROTECT YOUR LUNGS.

Breathable silica may be generated by use of this product. Silica can 
cause severe and permanent lung damage, cancer, and other serious 
diseases. Do not breath the dust. Do not rely on your sight or smell to 
determine if the dust is in the air. Silica may be in the air without a vis-
ible dust cloud. If air monitoring equipment for silica is not provided by 
your employer at your work site, you MUST wear appropriate respiratory 
protection when using or servicing the machine. Consult your employer 
and OSHA regarding the appropriate respiratory protection.

4.6 

PROTECT YOUR HEARING.

Observe all applicable local, state and federal safety regulations. Wear 
OSHA approved hearing protection.

4.7 

DRESS PROPERLY.

Do not wear loose clothing or jewelry that can be caught in moving parts. 
Wear protective hair covering to contain long hair. Keep hair away from 
motor air vent. Rubber gloves and non-skid footwear are recommended 
when working outdoors.

4.8 

AVOID A DANGEROUS ENVIRONMENT.

Do not expose machine to rain. Do not use machine in wet conditions. 
Water entering a power tool will increase the risk of electric shock. Keep 
work area well lit. When working at an elevated location, pay attention to 
articles and persons below. If operating the power tool in damp locations 
is unavoidable, use a Ground Fault Circuit Interrupter (GFCI) protected 
supply. Use of an GFCI reduce the risk of electric shock.

4.9 

ELECTRICAL SAFETY

Power tool plugs must match the outlet. Never modify the plug in any way. 
Do not use any adapter plugs with earthed (grounded) power tools. Unmodi-

fied plugs and matching outlets will reduce risk of electric shock. 

Avoid body contact with earthed or grounded surfaces such as pipes, radia-
tors, ranges and refrigerators. There is an increased risk of electric shock if 
your body is earthed or grounded.

4.10 

ELECTRICAL CORD MANAGEMENT

Do not abuse the cord. Never use the cord for carrying, pulling or unplug-
ging the power tool. Keep cord away from heat, oil, sharp edges or moving 
parts. Damaged or entangled cords increase the risk of electric shock. 
When operating a power tool outdoors, use an extension cord suitable for 
outdoor use. Use of a cord suitable for outdoor use reduces the risk of 
electric shock.

4.11 

AVOID ANY AREAS OR ACTIONS THAT EXPOSE YOU TO CARBON 

MONOXIDE.

Do not operate in areas where exhaust fumes could accumulate without 
wearing appropriate respiratory protection. Consult your employer and 
OSHA regarding use of appropriate respirator for dangerous carbon monox-
ide gases.

4.12 

KEEP WORK AREA CLEAN. DO NOT RUN OVER ANYTHING.

Loose objects could be thrown from crack. Make sure area to be cut is 
clear from people and any loose objects, nuts, bolts, etc. Never run over 
any loose objects.

4.13 

KEEP CHILDREN AND VISITORS AWAY.

Do not allow anyone to stand in line with the blade path. Do not let children 
or visitors contact machine or extension cord. Keep children and visitors 
away from the work area.

4.14 

KEEP FIRM GRIP ON MACHINE.

During normal operation as instructed in Section 6.0, keep a firm hold 

on the handle grips and maintain control of the machine until the blade 
completely stops.

4.15 

SHUT OFF MACHINE.

When not in use, before servicing and when changing accessories shut 
off motor. Release the lever switch and move the on/off switch to the OFF 
position. Move the fuel valve lever to the OFF position.

4.16 

STORE IDLE EQUIPMENT.

The machine and tools should be stored in a dry and secure location when 
not in use. Keep equipment out of reach of children.

4.17 

OBTAIN SAFETY DATA SHEET (SDS) FOR ALL 

WORK SURFACE MATERIALS. 

This includes primers, all coatings, adhesives, tile and crack filling materi

-

als, etc. Do not attempt to cut, clean out or remove material without SDS 
information. Consult SDS sheet for hazards information. Be aware that 
some materials are explosive as a dust.

4.0 

SAFETY INSTRUCTIONS

Summary of Contents for MC-45

Page 1: ...tection Copyright 2020 by U S SAWS All rights reserved This work may not be reproduced or disseminated in whole or in part by any means without the prior written permission of U S SAWS Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com ...

Page 2: ...nor or moderate injury It may also be used to alert against unsafe practices that may cause property damage 2 The owner s manual is intended to point out some of the basic safety situa tions that maybe encountered during the normal operation maintenance of the U S SAWS MC 45 Machine to instruct you in safety practices for dealing with these conditions Keep all manuals provided with your machine in...

Page 3: ...machine max rpm rating The use of any other blade could result in death or serious injury Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com For Safe Operation You must be qualified for safe operation of the U S SAWS MC 45 walk behind machine You must clearly understand the written instructions supplied by U S SAWS be trained including actual operation ...

Page 4: ...ocations is unavoidable use a Ground Fault Circuit Interrupter GFCI protected supply Use of an GFCI reduce the risk of electric shock 4 9 ELECTRICAL SAFETY Power tool plugs must match the outlet Never modify the plug in any way Do not use any adapter plugs with earthed grounded power tools Unmodi fied plugs and matching outlets will reduce risk of electric shock Avoid body contact with earthed or ...

Page 5: ...ALITY IS DETECTED Stop using machine immediately if any abnormalities are observed during operation Examples of abnormalities include unusual noise and vibration 4 28 WHEN REPLACING A PART USE THE SAME TYPE AND QUALITY When replacing a component part with a new one use only the same type and quality of new part Never attempt to repair a machine if you are unfamiliar with proper procedures and tech...

Page 6: ...ealth 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...

Page 7: ...t the exact blade depth such as the exact diameter of a worn diamond blade If an accurate depth must be cut install the blade to be used with the motor in the OFF position Place the MC 45 in a secure position that allows the blade to overhang and be visibly measured at full blade depth An example would be blocking the wheels with the mo tor in the OFF position and lowering the MC 45 blade along si...

Page 8: ...igure 8 Warning label wear proper clothing ear and eye protection WARNING Recommended accessories for this tool including blades are listed in this manual or are available by calling customer service The use of any other attachment or accessory might be hazardous 5 11 MC 45 premium dry cut diamond blades U S SAWS recommends soft blond blades for use with the MC 45 Blades can be used in a variety o...

Page 9: ... Visit us at www ussaws com sales ussaws com SETTING THE BLADE DEPTH 6 1 Follow all pre operating instructions in section 5 0 6 2 The machine should be unplugged from electricity before start ing this operation WARNING Never attempt to start the motor with the diamond blade inserted in a joint or previous cut The blade will turn as soon as the MC 45 is started This could damage the blade or cause ...

Page 10: ... will cause excessive heat and may make cutting slower The saw must be guided in an accurate and skillful manner as to keep the saw in the joint fill material and not wander off into the concrete This is especially important when removing polyurea 6 12 Finishing a cut When the operator gets to a wall or other termi nation point with the blade still in the down position shut the saw off and wait fo...

Page 11: ...PARTS BREAKDOWN 11 Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com ...

Page 12: ...PARTS BREAKDOWN 12 Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com ...

Page 13: ...OPERATIONS BREAKDOWN 13 Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com ...

Page 14: ...OPERATIONS BREAKDOWN 14 Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com ...

Page 15: ...OPERATIONS BREAKDOWN 15 Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com ...

Page 16: ...OPERATIONS BREAKDOWN 16 Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com ...

Page 17: ...OPERATIONS BREAKDOWN 17 Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com ...

Page 18: ...OPERATIONS BREAKDOWN 18 Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com ...

Page 19: ...OPERATIONS BREAKDOWN 19 Surface Prep Division P 877 817 6687 F 813 621 7125 Visit us at www ussaws com sales ussaws com ...

Page 20: ...tion to return merchandise under warranty must first be obtained from U S SAWS 8 1 3 6 U S SAWS reserves the right to inspect and make the final decision on any merchandise returned under warranty 8 1 3 7 U S SAWS offers no warranty with respect to accessories including but not limited to engines motors batteries electrical boards tires and any other parts not manufactured by us but which the orig...

Page 21: ... the warranty registration card do not operate this machine before contacting U S SAWS at 1 877 817 6687 Verify the following before operating the equipment CHANGE OF OWNER OR NEW ADDRESS REGISTRATION CARD IMPORTANT To ensure that your U S SAWS machine is covered under warranty please fill in the following information and mail or fax it to U S SAWS 8004B E Broadway Ave Tampa FL 33619 Fax No 813 62...

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