4 ½” PLUNGE CUT CIRCULAR SAW 241-0748 For questions/comments, technical assistance or repair parts – Please call toll free: 1-866-349-8665 (M–F 9am–5pm EST) OPERATOR’S MANUAL CAUTION: To Reduce The Risk Of Injury, User Must Read And Understand Operator’s Manual. Save These Instructions For Future Reference.
TABLE OF CONTENTS Front cover ……………….………………………………………………………………... Table of contents ……………….………………………………………………………………... General safety warnings……………………………………………………………….………..... Eye, ear & lung protection……………………………………………………………….………..... Electric safety……………………………………………………………….………..... ……..... ... ... Power tools safety……………………………………. ……………………………………… Special safety rulers……………………………………….…………..……….... ………….. Extension cord safety ………………………………………………………………....
GENERAL SAFETY WARNINGS ! WARNING: Before using this tool or any of its accessories, read this manual and follow all Safety Rules and Operating Instructions. The important precautions, safeguards and instructions appearing in this manual are not meant to cover all possible situations. It must be understood that common sense and caution are factors which cannot be built into the product.
GENERAL SAFETY WARNINGS EYE, EAR & LUNG PROTECTION – cont’d WEAR A DUST MASK THAT IS DESIGNED TO BE USED WHEN OPERATING A POWER TOOL IN A DUSTY ENVIRONMENT. ! WARNING: Dust that is created by power sanding, sawing, grinding, drilling, and other construction activities may contain chemicals that are known to cause cancer, birth defects, or other genetic abnormalities.
POWER TOOL SAFETY WARNING: Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. 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. Save all warnings and instructions for future reference.
POWER TOOL SAFETY Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control. PERSONAL SAFETY – cont’d Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts. Use the power tool, accessories and tool bits etc.
SPECIFIC SAFETY RULES Hold power tool by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring or its own cord. Contact with a “live” wire will also make exposed metal parts of the power tool “live” and shock the operator. WARNING: Know your Plunge cut circular saw. Do not plug the saw into the power source until you have read and understand this Instruction Manual.
SPECIFIC SAFETY RULES operating properly, they must be serviced before use. The lower guard may operate sluggishly due to damaged parts, gummy deposits, or a build-up of debris. CAUSES AND OPERATOR PREVENTION OF KICKBACK – cont’d When the blade is binding, or when interrupting a cut for any reason, release the trigger and hold the saw motionless in the material until the blade comes to a complete stop.
SPECIFIC SAFETY RULES Be sure your extension cord is properly wired and in good condition. Always replace a damaged extension cord or have it repaired by a qualified electrician before using it. Protect your extension cord from sharp objects, excessive heat and damp or wet areas. ADDITIONAL SPECIFIC SAFETY RULES – cont’d When replacing the blade, make sure the replacement blade is 4-1/2" in diameter and is rated for 12,000 RPM.
PRODUCT SPECIFICATIONS PRODUCT SPECIFICATIONS Rating: 120 V AC, 60 Hz, Amperes: 8 AMP No load speed: 12000 RPM Arbor: Blade: Guide rail size: Maximum cutting depth without track 3/8” 4-1/2" 4 x (13-3/8" x 4") 1-3/16" Maximum cutting depth with track 1” Weight: 6 lb 13 o (3.
SYMBOLS WARNING: Some of the following symbols may appear on the saw. Study these symbols and learn their meaning. Proper interpretation of these symbols will allow for more efficient and safer operation of this tool. V A Hz W kW Direct current Volts No load speed Amperes Hertz Alternating or direct current Watts Class II construction Kilowatts Splash-proof construction Microfarads L kg H N/cm2 Pa OPM Min S or a.c.
KNOW YOUR PLUNGE CUT CIRCULAR SAW 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. Dust port Upper Guard Blade 20T Blade securing bolt outer flange Front handle Pivot Base plate Lower guard Direction indicator On/Off trigger Plunge release Main handle Depth scale Depth locking knob Track tension adjusters Track channel Pivot bolt Motor cover screw Motor vents Motor cover Guide plate Joining bar Workpiece clamp Hex.
ASSEMBLY AND OPERATING INSTALLING THE BLADE Blade 40T ( see (26) in Know your Plunge cut circular saw on page 12) – Fine wood blade for smooth clean cuts in wood and normal use in very light density woods and composite materials. WARNING: Always remove the plug from the power source before installing or removing a blade or adjusting the saw in any way. 1. 2. 3. 4. 5. Place a clean piece of cardboard on a workbench to protect the blade and the workbench.
ASSEMBLY AND OPERATING SETTING THE CUTTING DEPTH The cutting depth of the blade should be set to suit the thickness of the material being cut. The cutting depth should be approximately 1/8" (3 mm) greater than the thickness of the material being cut. 2. To turn the saw OFF, release the trigger switch. Loosen the depth locking knob (see (15) in know your Plunge cut circular saw on page 12), move the depth stopper to desired position.
ASSEMBLY AND OPERATING DANGER: Any workpiece that is not adequately clamped in place may come loose and cause serious injury. Never hold the workpiece in your hand. WARNING: DO NOT force the Plunge cut circular saw. Use only enough force to keep the blade cutting at full speed. Excessive pressure on the blade will cause it to slow down and overheat, resulting in poor cut quality and damage to the motor.
ASSEMBLY AND OPERATING bench at least 4’ (1.2 m) long. Assemble the guide track as follows: 1. Lay the track section (without joining bars) on its back toward the left hand side of the work surface. 2. Using the supplied hexagon key to loosen the 4 screws in the joining bar, Slide the cavities over the joining bar that is protruding from track section. (Fig.9. Fig.10) 3. Insert joining bar into the matching cavities in the left hand track section.(Fig.
ASSEMBLY AND OPERATING CUTTING USING THE GUIDE TRACK The guide track can be used to make precision cuts on workpieces up to 53-1/2” (1.36 m). 1. 2. Place workpiece on a table. Mark the cut line (1) on the workpiece (Fig. 13). NOTE: The guide track alignment mark placement will vary depending upon the type of blade being used. Always make a test cut on a scrap workpiece to verify the set-back distance. 5. Set the saw cutting depth (see page 16, section of SETTING DEPTH ADJUSTMENT). 6.
MAINTENANCE 8. not recommended that this tool be used for extended work on any fiberglass material, wallboard, spackling compounds or plaster. During any use on these materials it is extremely important that the tool is cleaned frequently by blowing it out with an air jet. Use the Track Tension Adjusters to control movement resistance of the saw along the track. Set them to equal tension at the maximum level that allows smooth movement along the track.
MAINTENANCE SAVE THESE INSTRUCTIONS FOR REFERENCE 19
EXPLODED VIEW 20
PARTS LIST WARNING: When servicing, use only original equipment replacement parts. The use of any other parts may create a safety hazard or cause damage to the saw. Any attempt to repair or replace electrical parts on this saw may create a safety hazard unless repairs are performed by a qualified technician. For more information, call the Toll-free Helpline, at 1-866-349-8665. Always order by PART NUMBER, not by key number.
PARTS LIST Key # 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 Part # 241-0748-39 241-0748-40 241-0748-41 241-0748-42 241-0748-43 241-0748-44 241-0748-45 241-0748-46 241-0748-47 241-0748-48 241-0748-49 241-0748-50 241-0748-51 241-0748-52 241-0748-53 241-0748-54 241-0748-55 241-0748-56 241-0748-57 241-0748-58 241-0748-59 241-0748-60 241-0748-61 241-0748-62 Part Name Push rod Fixed plate Cord clamp Screw Screw Bolt Depth adjustment bracket (Plunge) Depth scale indicator (Plunge) De
MASTERFORCE® 4 ½” PLUNGE CUT 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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