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www.mkdiamond.com
Revision 313
Manual Part# 156777
Caution: Read all safety and operating instructions
before using this equipment. This owner's manual
MUST accompany the equipment at all times.
08.2019
MK-20 CONCRETE SAW SERIES
MODELS
MK-2013HE GX390
MK-2013HSP GX390
MK-2020HSP GX630
MK-2024HSP GX690
MK-2013HS Part # 155714
OWNER'S MANUAL
PART #
155714
156499
156498
158777
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Table of Contents
Related Manuals for MK Diamond Products MK-2013HE GX390
Summary of Contents for MK Diamond Products MK-2013HE GX390
- Page 1 MK-20 CONCRETE SAW SERIES www.mkdiamond.com OWNER’S MANUAL MODELS PART # MK-2013HE GX390 155714 MK-2013HSP GX390 156499 MK-2020HSP GX630 156498 MK-2024HSP GX690 158777 MK-2013HS Part # 155714 08.2019 Revision 313 Manual Part# 156777 Caution: Read all safety and operating instructions before using this equipment. This owner’s manual...
- Page 2 INTRODUCTION Congratulations on your purchase of a MK-20 Series. 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 MK-20 Series should provide you with years of service. In order to help you, we have included this manual.
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Page 3: Table Of Contents
TABLE OF CONTENTS SAFETY Safety Messages Damage Prevention Message General Safety Precautions and Hazard Symbols California Proposition 65 Message Safety Label Locations 10-11 Product Specifications UNPACKING, TRANSPORT and ASSEMBLY Unpacking Contents Transport Assembly 14-18 SET-UP, OPERATION and SHUTDOWN Set-Up 18-21 Operation 22-26 Shutdown... -
Page 4: Safety Messages
MK-20 SERIES SAFETY Read and follow all safety, operating and maintenance instructions. Failure to read and follow these instructions could result in injury or death to you or others. Failure to read and follow these instructions could also result in damage and/or reduced equipment life. Safety warnings and guidelines do not by themselves eliminate danger. - Page 5 MK-20 SERIES SAFETY PERSONAL PROTECTIVE EQUIPMENT ALWAYS wear approved respiratory, head, ear and eye protection when operating this machine. ACCIDENTAL STARTS! Before starting the engine/motor, be sure the ON/OFF switch is in the OFF position to pre- vent accidental starting. Place the ON/OFF switch in the OFF position before performing any service operation.
- Page 6 MK-20 SERIES SAFETY USE PROPER APPAREL DO NOT wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry that may be caught in moving parts. Non-slip footwear is recommended. Wear protective hair cover- ing to contain long hair. SECURE WORK Clamps or a vise should be used to hold work whenever practical.
- Page 7 MK-20 SERIES SAFETY CHECK FOR DAMAGED PARTS Before using a power tool, check for damaged parts. A guard or any other part that is damaged should be carefully checked to determine if it would operate properly and perform its intended function. Always check moving parts for proper alignment or binding. Check for broken parts and mountings and all other conditions that may affect the operation of the power tool.
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Page 8: California Proposition 65 Message
MK-20 SERIES SAFETY SILICA DUST WARNING Grinding/cutting/drilling of masonry, concrete, metal and other materials with silica in their composition 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 inhalation of airborne crystalline silica can cause serious or fatal respiratory diseases, including silicosis. - Page 9 NOTES GAS ENGINE SAFETY Gasoline models are shipped from the factory dry, meaning without fuel or oil. Both must be added before equipment can be used. Check the engine Manufacturer Owner's Manual for instructions on fueling, break-in, servicing and proper engine care and use. GAS SAFETY PRECAUTIONS EXPLOSIVE FUEL! Gasoline is extremely flammable, its vapors can explode if ignited;...
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Page 10: Safety Label Locations
MK-20 SERIES SAFETY OPERATION & SAFETY DECALS The MK-20 Series Concrete Saw is equipped with a number of safety decals. These decals are pro- vided for operator safety and maintenance information. Should any of these operation or safety de- cals become unreadable, replacements can be obtained by calling (800) 262-1575. Location of Safety Decals for models: MK-2013HE, MK-2013HSP WARNING Console Label Part # 156749... - Page 11 MK-20 SERIES SAFETY Locations of Safety Decals for models: MK-2024HSP, and MK-2020HSP WARNING FORWARD DO NOT operate this FAST RAISE BLADE TO equipment before reading the owner s manual. CLEAR PAVEMENT LOWER BLADE WHEN MANEUVERING SLOWLY INTO CUT RAISE LOWER Always wear safety approved hearing, eye, head and respiratory protection.
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Page 12: Product Specifications
MK-20 SERIES PRODUCT SPECIFICATION PRODUCT SPECIFICATIONS The MK-20 Series is a versatile gas powered Concrete Saw. Operated and used according to this manual, the MK-20 Series will provide years of dependable service. General Description The MK-20 Series is engineered as a portable concrete saw powered by a Honda gas engine. The saw is capable of 6-5/8"... -
Page 13: Unpacking
1 Blade Nut Handlebar Handlebar Pointer Wrench Bolts and Washers MK-20 CONCRETE SAW SERIES www.mkdiamond.com OWNER’S MANUAL MODELS PART # MK-2013HE GX390 155714 MK-2013HSP GX390 156499 MK-2020HSP GX630 156498 MK-2024HSP GX690 158777 MK-2013HS Part # 155714 Revision 313 08.2019 Manual Part# 156777 Caution: Read all safety and operating instructions before using this equipment. - Page 14 MK-20 SERIES ASSEMBLY DESCRIPTION OF CONTROLS The Depth Control Wheel raises the blade when rotated clockwise, and lowers the blade when rotated counterclockwise. The keyed ignition switch turns clockwise to the on and start positions. The engine turns over with the switch in the start position. Release the key after the engine starts. When the engine is running, the Tach/Hour Meter display will indicate the engines RPM.
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Page 15: Assembly
MK-20 SERIES ASSEMBLY HANDLEBAR ASSEMBLY Follow the assembly instructions to prepare your saw for operation. Locate the threaded holes on Align the handlebar with the Install one Washer onto each bolt. both sides of the handlebar. holes on both sides of the frame at Install bolt through the Handlebar the desired height. - Page 16 MK-20 SERIES ASSEMBLY HYDRO-STATIC TRANSMISSION The Hydro-Static Transmission is factory filled with fluid having a viscosity equivalent to SAE 20 W 20. Do not overfill the expansion tank. Notice that the full level line is near the NOTICE bottom of the expansion tank. Over filling will result in rupturing the seals on the hydromatic transmission and subsequent mechanical damage.
- Page 17 MK-20 SERIES ASSEMBLY DIAMOND BLADE INSTALLATION NOTE: 1. When installing the blade retaining-bolt, ensure the threads of the bolt are aligned with the threads of the drive shaft so as not to "cross-thread" the bolt. 2. When installing the blade ensure that the blade shaft and flanges are free from dirt and all foreign material before mounting blade on the blade shaft.
- Page 18 MK-20 SERIES ASSEMBLY NOTE: Raise the blade as high as possible when maneuvering so that the blade will not strike the pavement. The blade is spinning when- ever the saw is running. Tighten Blade Shaft Nut holding the Blade Shaft steady. Lower and close Blade Guard.
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Page 19: Set-Up
MK-20 SERIES SET-UP FRONT POINTER ALIGNMENT The Front Pointer is set in line at the factory. However, the pointer should be checked for proper alignment with the blade after every use. Using a straight edge, care- With the Blade centered over the Adjust the Pointer in or out if the fully mark a line 12 feet long on line and the Saw Frame parallel... - Page 20 MK-20 SERIES SET-UP 1 inch (25mm) Proper Oil Level from throat Maximum Fuel Level Low Level Check the Air Filter for Check for proper oil level. Ensure fuel level is 1" below the cleanliness. Refer to Engine Manual Refer to Engine Manual for details. throat of the Fuel Tank.
- Page 21 MK-20 SERIES SET-UP BLADE SPEED AND THROTTLE SETTING Since diamond blades cut best at specific rim-speeds, blades of different diameters must be turned at different blade shaft rpm’s. The MK-2013/14 will run either a 16" or 18" blade and the MK-2020/24/22 HSP will run a 16"...
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Page 22: Operation
MK-20 SERIES OPERATION STANDARD OPERATION The MK-20 Series is intended for industrial applications and operated by experienced professionals. The operator must be aware of the machine’s capabilities and limitations. It is the operators respon- sibility to use this machine under safe working conditions and conform with federal, state and local codes or regulations pertaining to safety, air, pollution, noise etc... - Page 23 MK-20 SERIES OPERATION NOTE: Read the engine instructions manual before starting saw. Start engine by rotating Ignition For Wet Cutting, open Cooling Move the throttle all the way for- Switch to the right. Supply Valve. Verify proper cooling ward to "Fast" position. flow and adjust the water flow on the Blade to a desired amount.
- Page 24 MK-20 SERIES OPERATION STEP CUTTING 1. Follow general instructions outlined in the section Standard Operation on page 19. 2. When deep sawing (more than 4") or concrete with hard aggregate, sawing to full depth in several cuts should be made in incremental steps of 1-1/2 to 2 inches until the desired depth of cut is reached.
- Page 25 MK-20 SERIES OPERATION BLADE GUARD REPOSITIONING WARNING Do not operate saw with any guards removed. Turn master engine switch to off position to avoid accidental starts when removing guards. Remove Diamond Blade. Remove the Cooling Transfer Locate the four Blade Guard Re- Hose from the Blade Guard by taining Bolts.
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Page 26: Shutdown
MK-20 SERIES OPERATION Install the Blade Shaft Cover. Remove the Pointer. Install the Pointer on the opposite side, next to Blade Guard. (See Front Pointer alignment Page 16) EMERGENCY ENGINE SHUTDOWN Place Engine Master Switch in the Move the Throttle Lever to lower OFF position. -
Page 27: Cleanup
MK-20 SERIES CLEANUP CLEANUP Engine parts are extremely hot following use, allow engine to cool 1/2-hour before CAUTION cleaning. Use care during cleanup to avoid injury. 1. To extend operating life, the Concrete Saw should be cleaned following NOTE: every use. 2. -
Page 28: Maintenance
MK-20 SERIES MAINTENANCE MAINTENANCE SCHEDULE Item should be performed at every indicated hour(s) or interval period whichever goes first. Maintenance Schedule Maintenance Daily 25 Hours 100 Hours or Operation or Weekly Seasonal Every 4 Hours When Dry Cutting Check Every 8 Hours Air Filter When Wet Cutting •... - Page 29 MK-20 SERIES MAINTENANCE MAINTENANCE SAFETY • Always turn the master engine switch to the off position. • 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 30 MK-20 SERIES MAINTENANCE Lubricate the zerk fitting on each Lubricate the Cooling Verify the tightness of all bolts and wheel. Supply Valve. screws. Clean the saw (except the engine) with soap and water. Weekly (50 hours) and Monthly (200 hours) The following should be performed monthly.
- Page 31 MK-20 SERIES MAINTENANCE 500 Hours and 1000 Hour Maintenance Perform the following maintenance every 500 hours. Replace Spark Plug. Refer to En- Have Authorized Repair Shop per- Have Authorized Repair Shop per- gine Manual for details. form 500-hour maintenance. form 1000-hour maintenance. Yearly and Two-Year Maintenance Perform the following maintenance every year.
- Page 32 MK-20 SERIES MAINTENANCE 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. 3.
- Page 33 MK-20 SERIES MAINTENANCE Engine Air Filter Inspection, Cleaning and Replacement Clean the Air Filter. Refer to Engine Manual for details. 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...
- Page 34 MK-20 SERIES MAINTENANCE Battery Check water level weekly. Add distilled water if necessary. Check terminal cables and remove any de- posits. Remove the battery for recharging and follow the instructions for recharging. Damage can result to the battery and electrical system if the battery is charged or installed in reverse polarity. Make sure that the negative terminal is connected to ground.
- Page 35 NOTES...
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Page 36: Accessories
MK-20 SERIES ACCESSORIES ACCESSORIES ITEM NUMBER DESCRIPTION MK-505 129072 18" x .125 x 1" Premium grade wet cutting blade for cured concrete MK-505 135301 20" x .140 x 1" Premium grade, wet cutting blade for cured concrete MK-615W 150232 18" x .125 x 1" Premium grade, wet cutting asphalt over concrete MK-615W 152391... - Page 37 MK-20 SERIES ACCESSORIES ACCESSORIES ITEM NUMBER DESCRIPTION 6.5 Gallon 157852 Water Tank 172896 Water Pump Kit...
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Page 38: Ordering Information
MK-20 SERIES ORDERING & RETURN ORDERING INFORMATION You may order MK Diamond products through your local MK Diamond distributor or, you may order direct from MK Diamond. When ordering direct from MK Diamond, please have the following information ready before calling: •... -
Page 39: Contact Information
© COPYRIGHT 2019, MK DIAMOND PRODUCTS, INC. ALL RIGHTS RESERVED. The MK Diamond logo is a registered trademark of MK Diamond Products, Inc. and may not be used, reproduced, or altered without written permission. All other trademarks are the property of their re- spective owners and used with permission. - Page 40 MK-20 SERIES CONCRETE SAW OWNER’S MANUAL MK Diamond Products, Inc. 1315 Storm Parkway Torrance, CA 90501 Toll-Free: (800) 421-5830 Phone: (310) 539-5221 Fax: (310) 539-5158 www.mkdiamond.com...