20 Volt Circular Saw 241-0428 OPERATOR’S MANUAL CAUTION: To Reduce The Risk Of Injury, User Must Read And Understand The Operator’s Manual. Save These Instructions For Future Reference. For questions / comments, technical assistance or repair parts – Please Call Toll Free: 1-866-917-4374. (M-F 8am – 6pm EST.
table of contents Safety Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2 Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3 Overview/ Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
safety symbols Some of these following symbols may be used on this tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and more safely.
safety INSTRUCTIONS The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols and the explanations with them deserve your careful attention and understanding. The symbol warnings do not, by themselves, eliminate any danger. The instructions and warnings they give are no substitutes for proper accident prevention measures.
safety INSTRUCTIONS WARNING: Read all safety warnings and instructions.Failure to follow the warnings and instructions may result in electric shock, fire and / or serious injury. Save all warnings and instructions for future reference. The term power tool in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool. WARNING: Risk of fire and electric shock. Dry location use only. Do not expose to rain. Risk of injury. Work area safety 1.
safety INSTRUCTIONS 4. Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury. 5. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations. 6. Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving parts.
safety INSTRUCTIONS Service 1. Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained. SPECIFIC SAFETY RULES FOR CIRCULAR SAWS 1. Danger a) Keep hands away from cutting area and blade. Keep your second hand on auxiliary handle, or motor housing. If both hands are holding the saw, they cannot be cut by the blade. b) Do not reach underneath the work piece.
safety INSTRUCTIONS d) S upport large panels to minimize the risk of blade pinching and kickback. Large panels tend to sag under their own weight. Supports must be placed under the panel on both sides, near the line of cut and near the edge of the panel. e) Do not use dull or damaged blades. Unsharpened or improperly set blades produce narrow kerfs causing excessive friction, blade binding and kickback. f) Blade depth and bevel adjusting locking levers must be tight and secure before making cut.
OVERVIEW Lock-off button Front assist handle Trigger switch Worklight Bevel scale Bevel adjustment locking knob Lower blade guard lever Base Blade clamping hex screw Edge guide (not including) locking knob Lower blade guard Blade Mounting slots for edge guide (not including) Spindle lock button Blade wrench (Storage in tool) Depth-of-cut scale Depth-of-cut adjustment lever Motor housing Page 8
SPECIFICATIONS PRODUCT SPECIFICATIONS No load Speed 4500RPM Blade Diameter 6-1/2-in. (165mm) Blade Arbor 5/8 in. (16mm) Cutting Depth at 90° 2-1/8-in. Cutting Depth at 45° 1-3/4-in. Maximum Bevel Angle Adjustable 0-50° Tool weight (without battery) 5lbs. 10oz. ASSEMBLY PLASTIC UPPER AND LOWER BLADE GUARD WITH ANTI-SNAG FEATURE Lightweight blade guards provide protection from the blade. The self-retracting lower blade guard features an anti-snag design for more efficient cutting.
ASSEMBLY ERGONOMIC DESIGN The design of the saw allows proper two hand control when cutting. It has been designed to be comfortable and easy to grasp. SPINDLE LOCK BUTTON The spindle lock button allows you to secure the blade when turning the blade screw. WARNING: Do not attempt to modify this circular saw or create accessories not recommended for use with this saw. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious injury.
OPERATION TO ATTACH BATTERY PACK (Fig. 1) FIG. 1 the battery pack can cause damage to internal components. BLADE GUARD SYSTEM (Fig. 2) FIG. 2 Lower blade guard is in up position when making a cut Blade exposed on underside of workpiece NOTICE: Use with the battery pack listed on page 8 only. 1. Make sure that the circular saw is “OFF” 2. Align the raised rib on the battery pack with the grooves on the bottom of the saw, and then attach the battery pack to the saw.
OPERATION SAW BLADES WARNING: When using the saw, always stay alert and exercise control. Do not remove the saw from the workpiece while the blade is moving. WARNING: A 6 1/2-inch blade is the maximum blade capacity of your saw. A blade larger than 6 1/2-inch will come in contact with the blade guards. Also, NEVER use a blade that is so thick that it prevents the outer blade washer from engaging with the flat side of the spindle.
OPERATION FIG. 6 CORRECT SUPPORT Kickback occurs when the blade stalls rapidly and the saw is driven back towards you. Blade stalling is caused by any action which pinches the blade in the wood. To guard against kickback, avoid dangerous practices such as the following: 1. S etting blade depth incorrectly. 2. S awing into knots or nails in the workpiece. 3. T wisting the blade while making a cut. 4. M aking a cut with a dull, gummed up or improperly set blade. 5.
OPERATION STARTING/STOPPING THE SAW (Fig. 7) To start the saw: 1. D epress the lock-off button. 2. Depress the trigger switch. Always let the blade reach full speed, then guide the saw into the workpiece. To stop the saw: Release the trigger switch. After you release the trigger switch, allow the blade to come to a complete stop. Do not remove the saw from the workpiece while the blade is moving. 4.
OPERATION DANGER: When lifting the saw from the workpiece, the blade is exposed on the underside of the saw until the lower blade guard closes. Make sure the lower blade guard is closed before setting the saw down. WARNING: To make sawing easier and safer, always maintain proper control of the saw. Loss of control could cause an accident resulting in possibly serious injury. WARNING: Always clamp and support the workpiece securely. Always maintain proper control of the saw.
OPERATION Marked along the base across the front of the saw is a ruler for measuring repetitive cuts. It is marked 1-1/2 inches to the left of the 0° mark and 4-1/4 inches to the right of 45° mark in 1/16-inch increments. When making a cross cut or rip cut, align your line of cut with the left side of the notch by the 00 indicator. Since blade thicknesses vary, always make a trial cut in scrap material along a guideline to determine how much, if any, the guideline must be offset to produce an accurate cut.
OPERATION TO ADJUST BEVEL SETTING (Fig. 14) 1. Remove the battery pack from the saw. 2. Loosen the bevel adjustment knob by rotating the knob counterclockwise. 3. Tilt the base until the bevel indicator reaches the desired setting on the bevel scale (0°-50°). 4. Tighten the bevel adjustment knob by FIG. 14 rotating the knob clockwise. MAKING A BEVEL CUT (Fig. 15) FIG. 15 Line of cut 45°indicator 1. S ecure workpiece with clamps. When making a bevel cut, hold the saw firmly with both hands. 2.
OPERATION TO CHECK 0° BEVEL STOP (Fig. 16) FIG. 16 Carpenter’s square Blade 1. Remove the battery pack from the saw. 2. Loosen the bevel adjustment knob. 3. Place the saw in an upside-down position on a workbench. 4. Using a Philips-screwdriver, turn the 0°bevel stop adjusting screw until the base is square with the saw blade. WARNING: Attempting to make cuts without the bevel adjustment knob securely tightened can result in serious injury. POCKET CUTTING (Fig. 18) FIG.
OPERATION 7. R est the front of the saw base flat against the workpiece with the rear handle raised so the blade does not touch the workpiece. 8. Start the saw and let the blade reach full speed. 9. Guide the saw into the workpiece and make the cut. climb up on the workpiece and back toward you, possibly causing serious injury. 10. Release the trigger switch and allow the blade to come to a complete stop. 11. Lift the saw from the workpiece. 12. Clear corners out with a hand saw or saber saw.
MAINTENANCE oil, grease and sawdust or woodchips, and store tool in a dry place. 5. Be certain that all moving parts are well lubricated, particularly after lengthy exposure to damp and/or dirty conditions. LUBRICATION All of the bearings in this tool are lubricated with a sufficient amount of high-grade lubricant for the life of the tool under normal operating conditions. Therefore, no further lubrication is required. CHANGING THE BLADE (Fig. 19) FIG.
TROUBLESHOOTING PROBLEM The blade does not follow a straight line: The blade binds or smokes from friction: Page 21 CAUSE SOLUTION Teeth are dull. This is caused by hitting a hard object such as a nail, dulling teeth on one side. The blade tends to cut to the side with the sharpest teeth. Change a new blade Base is out of line or bent. Repair the tool by a qualified authorized Service Center Blade is bent. Change a new blade .Blade is dull.
20 Volt Circular Saw WARRANTY 90-DAY MONEY BACK GUARANTEE: This MASTERFORCE® brand power tool carries our 90-DAY Money Back Guarantee. If you are not completely satisfied with your MASTERFORCE® brand power tool for any reason within ninety (90) days from the date of purchase, return the tool with your original receipt to any MENARDS® retail store, and we will provide you a refund – no questions asked.
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