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MasterForce 241-0746 Operating Manual
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MasterForce 241-0746 Operating Manual

7-1/4-in. 15 amp hypoid
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OPERATING MANUAL
7-1/4-in. 15 Amp Hypoid Circular Saw
241-0746
IMPORTANT :
Carefully read this Owner's Manual before using this tool. Pay close atten-
tion to all Safety Instructions, Warnings, and Caution sections. Use this tool
properly, and only for its intended use.
Safety symbols in this manual are used to flag possible dangers. The safety
symbols and their explanations require the operator's full understanding. The
safety warnings do not, by themselves, eliminate any danger, and they are not
a substitute for proper accident prevention measures.
This Safety Alert Symbol indicates caution, warning, or danger. Failure to
obey a safety warning can result in serious injury to yourself or others. To reduce
the risk of injury, fire, or electric shock, always follow the safety precautions.

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Summary of Contents for MasterForce 241-0746

  • Page 1 OPERATING MANUAL 7-1/4-in. 15 Amp Hypoid Circular Saw 241-0746 IMPORTANT : Carefully read this Owner’s Manual before using this tool. Pay close atten- tion to all Safety Instructions, Warnings, and Caution sections. Use this tool properly, and only for its intended use.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Rules for Safe Operation ................Page 3 Unpacking ....................... Page 8 Description ...................... Page 9 Operation ......................Page 11 Maintenance....................Page 23 Troubleshooting ....................Page 27 Warranty ......................Page 28 PRODUCT SPECIFICATIONS Input 15 Amps Rating 120V, 60Hz AC No-load Speed 4400RPM Blade Diameter...

  • Page 3: Rules For Safe Operation

    RULES FOR SAFE OPERATION KNOW THE TOOL To operate this tool, carefully read this Owner’s Manual and all labels affixed to the saw before using. Keep this Manual available for future reference. IMPORTANT This tool should only be serviced by a qualified service technician. For more information, call the toll-free helpline, at 1-866-917-4374.
  • Page 4 ● Avoid body contact with grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is grounded. ● Don’t expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
  • Page 5 and balance enables better control of the tool in unexpected situations. ● Use safety equipment. Always wear eye protection. Dust mask, non-skid safety shoes, hard hat, or hearing protection must be used for appropriate conditions. ● Before connecting the tool to a power source (receptacle, outlet, etc.), be sure voltage supplied is the same as that specified on the nameplate of the tool.
  • Page 6 unauthorized parts or failure to follow Maintenance Instructions may create a risk of electric shock or injury. SPECIFIC SAFETY RULES FOR CIRCULAR SAWS DANGER:Keep hands away from cutting area and blade. Keep your sec- ond hand on auxiliary handle, or motor housing. If both hands are holding the saw, they cannot be cut by the blade.
  • Page 7 holes. Blades that do not match the mounting hardware of the saw will run eccentrically causing loss of control. ● Never use damaged or incorrect blade washers or bolts. The blade washers and bolt were specially designed for your saw, for optimum performance and safety of operation.

  • Page 8: Unpacking

    ● Do not use the circular saw near fumes or combustible liquids. ● Never slow the blade down with your hands, or by applying pressure to the side of the blade. ● Never apply force! Move the circular saw forward gently and steadily. UNPACKING WARNING: If any parts are broken or missing, DO NOT attempt to plug in the power cord or operate the saw until the broken or missing parts are re-...

  • Page 9: Description

    DESCRIPTION KNOW YOUR HYPOID CIRCULAR SAW (Fig. 2) Fig. 2 Rear Handle Front Handle Upper Blade Guard Trigger Switch Depth-of-Cut Adjustment Lever Bevel Adjustment Locking Lever Lower Blade Guard Lever Bevel Scale Lower Blade Guard Base Spindle Clamping Blade Screw Edge Guide Front Handle Locking Knob...
  • Page 10 Your hypoid circular saw has a precision-built electric motor and it should only be connected to a 120-volt, 60-Hz AC ONLY power supply (normal household current). DO NOT operate on direct current (DC). This large voltage drop will cause a loss of power and the motor will overheat. If the saw does not operate when plugged into correct 120-volt, 60-Hz AC ONLY outlet, check the power supply.

  • Page 11: Operation

    OPERATION WARNING: The maximum blade capacity of your saw is 7-1/4 inches. Any blade larger than 7-1/4 inch will come in contact with the blade guards. Never use a blade that is so thick that it prevents the outer blade washer from engag- ing with the flat side of the spindle.
  • Page 12 KICKBACK…WHAT CAUSES IT AND WAYS TO HELP PREVENT IT Kickback Causes Fig. 4 • Kickback is a sudden reaction to a pinched, bound, or misaligned saw blade, which can cause the saw to Right lift up and out of the workpiece and toward the operator.
  • Page 13 Ways to Help Prevent Kickback DANGER: Always release the trigger switch immediately if the blade binds or the saw stalls. Kickback could cause you to lose control of the saw. Loss of control can lead to serious injury. 1. Always maintain a Fig.
  • Page 14 8. Keep the blade at the correct depth setting. The depth setting should not exceed 1/4 inch below the material being cut (Fig. 6). Be sure that the blade depth and adjusting locking levers are tight and secure before making a cut. If blade adjustment shifts while cutting, it may cause binding and Kickback.
  • Page 15 MAKING DEPTH-OF-CUT ADJUSTMENTS Always use the correct Fig. 8 blade-depth setting. The correct blade-depth setting Depth-of-cut adjustment for all cuts should not be lever more than 1/4-inch deeper than the material being cut. Increased cutting depth will increase the chance of kickback and cause the cut to be rough.
  • Page 16 1. Always use your Fig. 9 saw with your hands positioned correctly: with one hand operating the trigger switch and the other on the front assist handle (Fig. 9). Never use the saw with your hands positioned as shown in Fig. 10. To Help Maintain Control: Always support the workpiece near the cut.
  • Page 17 4. Depress the trigger switch to start the saw. 5. Always let the blade reach full speed before you begin the cut into the workpiece. 6. When making a cut, always use steady, even pressure. Forcing the saw causes rough cuts and could shorten the life of the saw or cause Kickback. 7.
  • Page 18 MAKING RIP CUTS Fig. 11a Line of Cut Always use a guide when making long or wide rip cuts Indicator with your saw. You can use either a straight edge or use the edge guide that was included with your saw. USING A STRAIGHT EDGE WARNING: Always se- curely clamp and support...
  • Page 19 WARNING: Always unplug the saw before making any adjustments. Fail- ure to unplug the saw could result in accidental starting, which can cause serious personal injury. 1. Unplug the saw from Fig. 13 the power source. 2. Position the edge guide so that the ruler side of the arm is facing up.
  • Page 20 MAKING BEVEL CUTS WARNING: Always securely clamp and support the workpiece. Always maintain proper control of the saw. Failure to clamp and support the work- piece and loss of control of saw could result in serious injury. 1. Your saw can be Fig.
  • Page 21 0° BEVEL STOP The saw has a 0° bevel stop that has been factory adjusted to assure a 0° angle of the saw blade when making 90°cuts. TO CHECK 0° BEVEL STOP WARNING: Always unplug the saw before making any adjustments. Fail- ure to unplug the saw could result in accidental starting, which can cause serious personal injury.
  • Page 22 2. While holding the Fig. 18 lower blade guard up by the lever, firmly rest the front of the saw base flat against the workpiece with the rear handle raised, so that the blade does not touch the workpiece (Fig. 18). 3.

  • Page 23: Maintenance

    MAINTENANCE WARNING: To ensure safety and reliability, all repairs should be performed by a qualified service technician. WARNING: For your safety, always turn off the switch and unplug the hy- poid circular saw from the power source before performing any maintenance or cleaning.
  • Page 24 REPLACEMENT OF CARBON BRUSHES WARNING: For your safety, always turn off the switch and unplug the saw from the power source before performing any maintenance or cleaning. 1. Unplug the saw before inspecting or replacing brushes. 2. Replace both carbon brushes when either has less than 1/4-in. length of carbon remaining, or if the spring or wire is damaged or burned.
  • Page 25 CHANGING THE BLADE WARNING: Be sure to wear protective work gloves while handling a saw blade. The blade can injure unprotected hands. 1. Unplug the saw from the power source. WARNING: To prevent personal injury, ALWAYS disconnect the plug from power source BEFORE assembling parts, making adjustments or changing blades.
  • Page 26 8. Completely remove the spindle-clamping screw “A,” the outer “D” washer, and the blade (see Fig. 21). 9. The remaining washer is the inner bushing washer that fits around the spindle shaft; it does not need to be removed. 10. Put a drop of oil onto the inner bushing washer and outer “D” washer where they will touch the blade.

  • Page 27: Troubleshooting

    TROUBLE SHOOTING If the blade does not follow a straight line: • Teeth are dull. This is caused by hitting a hard object such as a nail, and dulling the teeth on one side. The blade tends to cut to the side with the sharpest teeth.

  • Page 28: Warranty

    WARRANTY If, during normal use, this MASTERFORCE™ power tool breaks or fails due to a defect in material or workmanship within three years from the date of original purchase, simply bring this tool and its sales receipt back to your...