MK Diamond Products CX-3 Owner's Manual & Operating Instructions
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MK Diamond Products CX-3 Owner's Manual & Operating Instructions

Gas powered concrete saw
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CX-3
®
OWNERS MANUAL &

OPERATING INSTRUCTIONS

Gas Powered
Concrete Saw
Revision 100
11.2009
Manual Part# 159345
Caution: Read all safety and operating instructions
before using this equipment. This owner's manual
MUST accompany the equipment at all times.
MK Diamond Products, Inc.

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  • Page 1: Operating Instructions

    OWNERS MANUAL & OPERATING INSTRUCTIONS Gas Powered Concrete Saw Revision 100 11.2009 Manual Part# 159345 Caution: Read all safety and operating instructions before using this equipment. This owner’s manual MUST accompany the equipment at all times. MK Diamond Products, Inc.
  • Page 2 Congratulations on your purchase of a CX-3 Concrete Saw. We are certain that you will be ® pleased with your purchase. MK Diamond takes pride in producing the finest construction power tools and diamond blades in the industry. Operated correctly, your CX-3 Concrete Saw should provide you with years of service.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SAFETY Safety Messages Damage Prevention Message General Safety Precautions and Hazard Symbols California Proposition 65 Message Prestart Safety Safety Label Locations Product Specifications UNPACKING, TRANSPORT and ASSEMBLY Unpacking Contents Transport Assembly STARTUP, OPERATION and SHUTDOWN Startup 15-17 Operation Shutdown Cleanup...

  • Page 4: Damage Prevention Message

    The safety labels should be periodically inspected and cleaned by the user to maintain good legibility at a safe viewing distance. If the label is worn, damaged or illegible, it should be replaced. Contact MK Diamond or your dealer for replacement. DAMAGE PREVENTION AND INFORMATION MESSAGES A Damage Prevention Message is to inform the user of important information and/or instructions that could lead to equipment or other property damage if not followed.

  • Page 5: Safety

    CX-3 SAFETY ® GENERAL SAFETY PRECAUTIONS AND HAZARD SYMBOLS SAFETY PRECAUTIONS In order to prevent injury, the following safety precautions and symbols should be followed at all times! GENERAL SAFETY DO NOT operate or service this equipment before reading this entire manual.
  • Page 6 CX-3 SAFETY ® ACCIDENTAL STARTS Before starting the engine, be sure the ON/OFF switch is in the “OFF” position to prevent accidental starting. Place the ON/OFF switch in the OFF position before performing any service operation. ROTATING OR MOVING PARTS Keep hands, feet, hair, and clothing away from all moving parts to prevent injury.
  • Page 7 CX-3 SAFETY ® DO NOT FORCE THE TOOL A power tool will do a job better and safer operating at the rate for which it was designed. USE THE RIGHT TOOL Do not force a tool or an attachment, to do a job that it was not designed to do.

  • Page 8: California Proposition 65 Message

    CX-3 SAFETY ® SILICA DUST WARNING Grinding/cutting/drilling of masonry, concrete, metal and other materials with silica in their compo- sition may give off dust or mists containing crystalline silica. Silica is a basic component of sand, quartz, brick clay, granite and numerous other minerals and rocks. Repeated and/or substantial inha- lation of airborne crystalline silica can cause serious or fatal respiratory diseases, including silicosis.

  • Page 9: Prestart Safety

    • Unauthorized equipment modifications will void all warranties. Manufacturer does not assume responsibility for any accident due to equipment modifications. • NEVER use accessories or attachments, which are not recommended by MK Diamond for this equipment. Damage to the equipment and/or injury to user may result.

  • Page 10: Safety Label Locations

    CX-3 SAFETY ® OPERATION & SAFETY DECALS The CX-3 Concrete Saw is equipped with a number of safety decals. These decals are provided for ® operator safety and maintenance information. Should any of these operation or safety decals become unreadable, replacements can be obtained by calling (800) 262-1575.

  • Page 11: Product Specifications

    6.5 horsepower Honda gas engine or a 7 horsepower Kohler gas engine. The saw is capable of cutting up to five (5) inches in depth. Motor and Weight Specifications Motor and Weight specifications for the CX-3 are listed below. ®...

  • Page 12: Unpacking

    In the containers, you will find one (1) CX-3 , one (1) Diamond Blade, two (2) Blade Shaft Wrenches, ® one (1) Handlebar, two (2) Handlebar Tri-knobs, two (2) Tri-Knob Washers, one (1) CX-3 Owners Manual, one (1) Engine Owners Manual and one (1) Warranty card. CX-3...

  • Page 13: Transport

    (117 pounds), ® use care when transporting. 2. Two people are required to lift and transport the CX-3 ® To lift the CX-3 , one person will lift by grasping the Handlebar (either extended or folded) and one ®...

  • Page 14: Assembly

    CX-3 ASSEMBLY ® Follow the assembly instructions to prepare your CX-3 for operation. ® Handlebar Assembly Locate the threaded holes on Align the handlebar with the Install one Tri-Knob Washer onto both sides of CX-3 console threaded holes on the sides of each Tri-Knob.

  • Page 15: Startup

    CX-3 STARTUP ® Install the Blade Retaining Tighten Blade Retaining Screw while Screw. holding the Blade Shaft steady. Filling Oil Reservoir Verify the Oil Drain Cap is installed onto the Oil Drain Line and is tight. Refer to Engine Manual for details.
  • Page 16 The pre-start inspection should be performed before beginning any job. If Diamond Blade is worn, replace the blade before starting work. Inspect Blade for damage. Verify Inspect Engine for leaks. Inspect the CX-3 for general ® the Blade is correct for the mate- damage and/or loose hardware.
  • Page 17 CX-3 STARTUP ® 1 inch (25mm) Proper Oil Level from throat Maximum Maximum Fuel Level Fuel Level Low Level Check for proper oil level. Ensure fuel level is 1” below the Ensure fuel level is below the Refer to Engine Manual for throat of the Fuel Tank.

  • Page 18: Operation

    CX-3 OPERATION ® Standard Operation The following is a brief overview of operating the CX-3 ® Use the depth control wheel to Attach the cooling supply hose Lower the Pointer. Using a raise the blade clear of the floor. to the Cooling Inlet.

  • Page 19: Shutdown

    CX-3 SHUTDOWN ® Normal Engine Shutdown Raise the Blade Guard off the Move the Throttle Lever to lower Place Engine Master Switch in ground. blade speed. the OFF position. Place Fuel Value in the off position. Raise the Pointer. Emergency Engine Shutdown...

  • Page 20: Cleanup

    3. Use care when cleaning around electrical components. Verify the engine is off and cool Clean around the Console. Clean the Depth Control Screw. before beginning to clean. Clean the CX-3 with soap and water. ® Clean the remainder of the exte- rior surface (except the engine).

  • Page 21: Maintenance

    CX-3 MAINTENANCE ® MAINTENANCE SAFETY • NEVER lubricate components or attempt service on a running machine. • Keep the machinery in proper running condition. • Fix damage to the machine immediately and always replace broken parts, or missing decals. New Maintenance Perform the following after initial purchase and operation of the saw.
  • Page 22 CX-3 MAINTENANCE ® Weekly (50 hours) and Monthly (200 hours) The following should be performed monthly. Items should be lubricated using waterproof grease. Change engine oil every 100 Lubricate the Depth Control Lubricate the Blade Shaft Bear- hours. Refer to Engine Manual Screw (Monthly).
  • Page 23 CX-3 MAINTENANCE ® 500 Hours and 1000 Hour Maintenance Perform the following maintenance every 500 hours. Replace Spark Plug. Refer to Have Authorized Repair Shop Have Authorized Repair Shop Engine Manual for details. perform 500-hour perform 1000-hour maintenance. maintenance. Yearly and Two-Year Maintenance Perform the following maintenance every year.

  • Page 24: Troubleshooting

    CX-3 TROUBLESHOOTING ® Check Fuel Level For all Engine related maintenance and troubleshooting refer to the Engine Manual. 1. Gasoline is highly flammable and explosive. You can be burned or seriously WARNING injured when handling fuel. 2. To fuel, stop engine if running and allow it to cool.
  • Page 25 1. Drain used oil when the engine is warm. 2. Conform to Federal, State, and Local laws, codes and ordinances relative to environmental protection for oil disposal. Remove the Diamond Blade. Lower the CX-3 to its lowest Free the Oil Drain Line. ®...
  • Page 26 CX-3 TROUBLESHOOTING ® Diamond Blade Removal Locate Blade Guard lock. Push Lock Button. Open the Remove the Blade Retaining Blade Guard Cover. Screw and the Outer Flange. Remove blade. Install the new Blade, Retaining Tighten Blade Retaining Screw Screw and Outer Flange.
  • Page 27 CX-3 TROUBLESHOOTING ® Spark Plug Adjustments and Replacement For all Engine related maintenance and troubleshooting refer to the Engine Manual. CAUTION DO NOT work around the engine while hot. When installing the Spark Plug, ensure the threads are aligned with the threads in the engine so as not to “cross-thread”...
  • Page 28 Blade Guard. Remove the Blade Shaft Cover Install the Blade Guard on the Install the Inner Blade Flange, Retaining Screws and the opposite side of the CX-3 Blade, Outer Flange and Blade ®. Blade Shaft Cover. Retaining Screw. Install the Cooling Transfer Hose Install the Blade Shaft Cover.
  • Page 29 Install the Pointer on the oppo- site side, next to Blade Guard. Belt Adjustment and Replacement In order to ensure the CX-3 operates at peak efficiency, the power transmission belt should be inspect- ® ed monthly and changed if any signs of damage and/or excessive wear is observed.
  • Page 30 CX-3 TROUBLESHOOTING ® Loosen the Motor Tension Remove the old belt from the Clean and verify the alignment Arm. Push the Motor forward to Engine and Blade Shaft Pulleys. of the Engine and Blade Shaft loosen the belt. Pulleys. Obtain and install a new Verify the belt is seated in all Tighten the Motor Tension Arm.

  • Page 31: Troubleshooting

    CX-3 TROUBLESHOOTING ® Install the Belt Guard and Belt Install the Blade (See Blade Guard Retaining Screws. Installation section).

  • Page 32: Theory

    In the case of DRY cutting, the overwhelming popularity and quantity of hand-held saws and the flexible nature of MK Diamond blades to professionally handle most ceramic, masonry, stone and concrete materials, make the DRY cutting blade a very attractive tool. When using a DRY blade, the user must be aware of distinct operating practices to ensure optimum performance.

  • Page 33: Accessories

    CX-3 ACCESSORIES ® ACCESSORIES ITEM NUMBER DECRIPTION MK – CX10 159615 12 x .100 x 1.0 MK – CX10 159616 14 x .100 x 1.0 MK – AX10 159617 12 x .100 x 1.0 MK – AX10 159618 14 x .100 x 1.0 MK –...

  • Page 34: Ordering Information

    ORDERING & RETURN ® ORDERING INFORMATION You may order MK Diamond products through your local MK Diamond distributor or, you may order direct from MK Diamond. NOTE: There is a $25.00 minimum order when ordering direct from MK Diamond. All purchases must be made using VISA, MasterCard or American Express.
  • Page 35 NOTES...
  • Page 36 CX-3 Concrete Saw ® OWNERS MANUAL & OPERATING INSTRUCTIONS DOCUMENT NO. 159345 REVISION 100 11/09 MK Diamond Products, Inc. 1315 Storm Parkway Torrance, CA 90501 Toll-Free: (800) 845-3729 Phone: (310) 539-2221 Fax: (310) 539-5158 www.mkdiamond.com...

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