www.mkdiamond.com MK-1280 GAS SAW BRICK/PAVER SAW OWNER S MANUAL & PARTS LIST Gas Honda Part # 166561 Revision 108 08.2017 Manual Part No. 168579 Caution: Read all safety and operating instructions before using this equipment. This owners manual MUST accompany the equipment at all times.
INTRODUCTION We at MK Diamond want to congratulate you on selecting the MK-1280 Gas Saw. We are certain that you will be pleased with your purchase. MK Diamond takes pride in producing the finest products in the industry. Operated correctly, your MK-1280 Gas Saw should provide you with years of quality service. In order to help you, we have included this manual. This owners manual contains information necessary to operate and maintain your MK-1280 Gas Saw safely and correctly. Please take a few minutes to familiarize yourself with the MK-1280 Saw by reading and reviewing this manual. If you should have questions concerning your MK-1280 Gas Saw, please feel free to call our friendly customer service department at: 800 421-5830 Regards, MK Diamond NOTE THIS INFORMATION FOR FUTURE USE: MODEL NUMBER: SERIAL NUMBER: PURCHASE PLACE: PURCHASE DATE: NOTE: For your (1) one year warranty to be effective, complete the warranty card (including the Serial Number) and mail it in as soon as possible. 2
TABLE OF CONTENT SAFETY Page Safety Message/Alert Symbols, Warnings 4 Hazard Symbols 5 General, Maintenance, Saw Safety 6-7 California Proposition 65 Message 8 Product Specifications 9 Safety Labels 10 Safety Labels & Location 11 PRODUCT SPECIFICATIONS Unpacking 12 Contents 12 Transport 13 SETUP, ADJUSTMENT AND OPERATION Assembly 14 Diamond Blade Installation 15 Oil Reservoir 16 Filling Fuel Tank 17 Pre-start Inspection 18 Startup 19-20 Operation 21 MAINTENANCE Cleanup 22 Maintenance 23-28 Troubleshooting 29-30 EXPLODED VIEW AND PARTS LIST Figure 1 - Paver Saw - P/N 166561 32-34 Figure 2 - Assy, Table P/N 166577 35 Figure 3 - Assy, Engine, Hnda P/N 166578 36 Figure 4 - Assy, Arbor P/N 166579 37 Figure 5 - Assy, 16 Blade Guard 166581 38 ORDERING AND RETURNING INSTRUCTIONS Ordering, Return, Material Policy & Packaging Instructions 40 Contact & Warranty 41 3
SAFETY Safety precautions should be followed at all times when operating this equipment. Failure to read and understand the Safety Precaution and Operating Instructions could result in injury to yourself and others. This Operation and Parts Manual has been developed to provide complete instructions for the safe and efficient operation of the MK-1280 Saw. Before using this machine, ensure that the person operating the machine has read and understands all instructions in this manual. SAFETY MESSAGE / ALERT SYMBOLS A safety message alerts you to potential hazards that could hurt you or others. Each safety message is preceded by a safety alert symbol ( ) and one of three words: DANGER, WARNING, or CAUTION. DANGER You WILL be KILLED or SERIOUSLY INJURED if you do not follow directions. WARNING You CAN be KILLED or SERIOUSLY INJURED if you do not follow directions. CAUTION You CAN be INJURED if you do not follow directions. It may also be used to alert against unsafe practices. Each message tells you what the hazard is, what can happen, and what you can do to avoid or reduce injury. Other important messages are preceded by the word NOTICE. NOTICE You can cause PROPERTY DAMAGE to your machine if you don t follow directions. 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. 4
SAFETY Potential hazards associated with the MK-1280 Saw operation will be referenced with Hazard Symbols which appear throughout this manual, and will be referenced in conjunction with Safety Message/Alert Symbols. HAZARD SYMBOLS ALWAYS read this Owner s Manual before operating the machine. ALWAYS avoid inhalation of and skin contact with silica dust and/or mist. ON / OFF ALWAYS place the power ON/OFF switch in the OFF position when the machine is not in use. ALWAYS wear approved eye protection. ALWAYS wear approved respiratory protection. NEVER operate equipment with covers, or guards removed. Keep fingers, hands, hair and clothing away from all moving parts to prevent injury. ALWAYS use caution around gears. Keep fingers, hands, hair and clothing away from all moving parts to prevent injury. NEVER touch the power cord with wet hands or while standing in water when it is connected to a power source. NEVER operate the machine in an explosive atmosphere or near combustible materials. 5
SAFETY RULES FOR SAFE OPERATION DANGER Failure to follow instructions in this manual may lead to serious injury or even death! This equipment is to be operated by trained and qualified personnel only! This equipment is for industrial use only. The following safety guidelines should always be used when operating the MK-1280 Saw. This equipment should not be operated by persons under 18 years of age. NEVER operate this equipment without proper protective clothing, shatterproof glasses, steeltoed boots and other protective devices required by the job. NEVER operate this equipment when not feeling well due to fatigue, illness or taking medicine. NEVER operate this equipment under the influence of drugs or alcohol. ACCIDENTAL STARTS on 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 HOT PARTS Keep hands, feet, hair, and clothing away from all moving parts to prevent injury. Never operate a power tool with shrouds or guards removed. Engine components can become extremely hot from operation. To prevent severe burns, do not touch these areas while the engine is running, or immediately after it is turned off. Never operate the engine with heat shields removed. ALWAYS USE SAFETY GLASSES Safety glasses should always be worn when working around power tools. Everyday eyeglasses only have impact resistant lenses and may not prevent eye injury; they are NOT safety glasses. ALWAYS USE RESPIRATORY PROTECTION Exhaust gases may be harmful if inhaled. Do not operate gas-powered equipment in enclosed spaces. Respiratory protection should be worn when operating gas powered equipment. ALWAYS USE HEARING PROTECTION To reduce the possibility of hearing loss, always use hearing protection when operating equipment. 6
SAFETY REMOVE ADJUSTING KEYS AND WRENCHES Form a habit of checking to see that keys and adjusting wrenches are removed from the power tool before it is turned on. KEEP WORK AREA CLEAN Cluttered work areas and benches invite accidents. DO NOT USE IN DANGEROUS ENVIRONMENTS Do not operate equipment in dangerous environments. Always keep the work area well lighted. KEEP CHILDREN AWAY All visitors and children should be kept a safe distance from work area. MAKE WORKSHOP KID PROOF Make the workshops kid proof by using padlocks, master switches or by removing starter keys. 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. WEAR PROPER APPAREL Do not wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry that may be caught in moving parts. Nonslip footwear is recommended. Wear protective hair covering to contain long hair. SECURE WORK Clamps or a vise should be used to hold work whenever practical. Keeping your hands free to operate a power tool is safer. DO NOT OVERREACH Keep proper footing and balance at all times by not overreaching. MAINTAIN TOOLS WITH CARE Keep tools sharp and clean for the best and safest performance. Always follow maintenance instructions for lubricating and when changing accessories. SHUTDOWN TOOL The saw should always be shutdown before servicing or when changing accessories such as blades, bits, cutters, etc... USE RECOMMENDED ACCESSORIES Consult the owner s manual for recommended accessories. Using improper accessories may increase the risk of personal or by-stander injury. 7
SAFETY NEVER STAND ON THE TOOL Serious injury could occur if a power tool is tipped, or if a cutting tool is unintentionally contacted. NEVER LEAVE TOOL RUNNING UNATTENDED TURN POWER OFF Do not leave a tool until it comes to a complete stop. Always turn a power tool OFF when leaving the work area, or, when a cut is finished. 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 it would operate properly and perform its intended function. Always check moving parts for proper alignment or binding. Check for broken parts, mountings and all other conditions that may affect the operation of the power tool. A guard or any damaged part should be properly repaired or replaced. DIRECTION OF FEED Always feed work into a blade or cutter against the direction of rotation. A blade or cutter should always be installed such that rotation is in the direction of the arrow imprinted on the side of the blade or cutter. 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. In addition, California and some other authorities have listed respirable crystalline silica as a substance known to cause cancer. When cutting such materials, always follow respiratory precautions. CALIFORNIA PROPOSITION 65 MESSAGE Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contain chemicals known (to the State of California) to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: Lead, from lead-based paints Crystalline silica, from bricks and cement and other masonry products Arsenic and chromium, from chemically treated lumber For further information, consult the following sources: http://www.osha.gov/dsg/topics/silicacrystalline/index.html http://www.cdc.gov/niosh/consilic.html http://oehha.ca.gov/prop65/law/p65law72003.html http://www.dir.ca.gov/title8/sub4.html Your risk from these exposures varies depending on how often you do this type of work. To reduce your exposure to these chemicals, work in a well-ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles. 8
SAFETY PRODUCT SPECIFICATIONS Operated and used according to this manual, the MK-1280 Gas Saw will provide years of dependable service. General Description The MK-1280 Gas Saw is engineered as portable brick saw powered by a Honda engine. The saw is capable of cutting masonry up to five and three-fourths (5-3/4) inches (127mm) in height, and thirteen and half (13.5) inches (343mm) in length in a single pass. Specifications Motor specifications for the MK-1280 Gas Saw are listed below. Motor/Engine Power Blade Capacity Depth of Cut Length of Cut L x W x H (inches) L x W x H (mm) Weight Honda GX240 16 (406mm) 5.75 (146mm) 13.5 (2 Thick Brick) 48.5 x 20.5 x 28 1,232 x 521 x 711 200 lbs (91 kg) MOTOR SPECIFICATIONS Engine power ratings are calculated by the individual engine manufacturer and the rating method may vary among engine manufacturers. Users are advised to consult the engine manufacturer s owners manual and website for specific information regarding engine power rating and maintenance. Blade Capacity The MK-1280 Gas Saw is designed for use with a 16-inch diameter segmented wet or dry MK Diamond blade with a.110 to.375 inch cutting width. Masonry Types The MK-1280 Gas Saw can cut a variety of masonry types including, cinder block, slump stone block, wall brick, paver brick, concrete block and cylinders, roofing tile, marble, granite, decorative rock or almost any other non-ferrous material. NOTE: The MK-1280 Gas Saw is not designed to cut plastic or metals. 9
SAFETY OPERATION & SAFETY DECALS The MK-1280 Saw is equipped with a number of safety decals provided for operator safety and maintenance information. Should any of these decals become unreadable, replacements can be obtained by calling (800) 262-1575.! CAUTION Part # 155579 F! Accidental start hazard. Disconnect spark plug prior to servicing.! WARNING This equipment may produce dust or mists containing crystalline silica. Silica is a basic component of masonry, concrete, and other materials. Repeated and/or substantial inhalation can cause serious or fatal respiratory diseases including silicosis. Respirable crystalline silica is listed by California and other authorities as a substance known to cause cancer. Employ dust controls and protection per OSHA/NIOSH/MSHA. CAUTION DO NOT touch hot surface. Part # 164202 A! DANGER The exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Part # 155581 G Scan for manuals FOR INFORMATION ON SERVICE OR WARRANTY PLEASE CALL 1-800-474-5594 Part # 155038 B! Part # 154398 D Part # 155582 H WARNING DO NOT operate this equipment before reading the owner s manual. DANGER Lethal exhaust gases. Use only in well ventilated areas. DO NOT use indoors. Part # 155587 (2) C! Part # 155588 E Part # 155580 I WARNING In the event of blade failure, replace blade guard immediately.!! CAUTION DO NOT operate without guards in place. WARNING When refueling stop engine and allow to cool. DO NOT overfill tank. Part # 155578 J Part # 170480 K 10
SAFETY SAFETY DECAL LOCATIONS C E D A K C I H J B F G MK-1280 Safety Decal Locations Decal Location Description A Belt Guard Warning - Silica B Frame Service or Warranty Information C Belt Guard/Blade Guard Caution - Guards in Place D Belt Guard Warning - Read Manual E Blade Guard Warning - Replace Blade Guard F Frame Caution - Accidental Start Hazard G Gas Tank - Side Danger - State of California H Gas Tank - Front Danger - Lethal Exhaust/Cancer I Gas Tank - Top Warning - Refueling J Gas Tank - Side Caution - Do Not Touch Hot Surface K Belt Guard - Top QR Code - Manuals 11
www.mkdiamond.com Revision 102 08.2010 Manual Part No.168579 Caution: Read all safety and operating instructions before using this equipment. This owners manual MUST accompany the equipment at all times. MK-1280 GAS SERIES BRICK/PAVER SAW OWNERS MANUAL & PART LIST Name address City state phone e-mail product model part NumBer machine serial# where did you purchase this saw From? Name zip Code Fax q tile distributor q home CeNter q equipment supply house q tool supply q Bldg material supply q rental equipment house are you a do-it-yourselfer q or CoNtraCtor q IF so, what type? tile q masonry q other what Criteria was important in ChoosiNg this saw? (rate From 1 to 5, 5 BeiNg the most important) price CommeNts or suggestions: date purchased power precision portability availability other mk diamond warranty 1315 Storm Parkway, Torrance, CA 90509 USA www.mkdiamond.com 1.800.421.5830 1.310.539.5158 If within one (1) Year from the date of purchase, this MK Diamond saw fails due to defect in material or workmanship, MK will repair it, free of charge when the unit is returned to the dealer where it was purchased. This warranty DOES NOT cover normal wear or damage resulting from operator abuse. In no event shall MK Diamond Products, Inc. be liable for consequential damages arising out of the failure of any product if operated improperly. MK Diamond Products may act as a warranty station for motor/engine repairs based on an individual agreement with the manufacturer. This warranty is in lieu of all other warranties express or implied. 2010 All Rights reserved. MK Diamond Products, Inc. P/N 155037 MK Warranty Card (02/10) MK-1280 GAS SAW UNPACKING UNPACKING Your MK-1280 Gas Saw has been shipped from the factory thoroughly inspected. Only minimal assembly is required. CAUTION Use proper lifting techniques when lifting the MK-1280 Gas Saw. CONTENTS In your container, you will find one (1) MK-1280 Gas Saw, one (1) MK-1280 Gas Saw movable cutting table, one (1) adjustable cutting guide, one (1) blade wrench, one (1) owners manual, one (1) engine manual and one (1) warranty card. MK-1280 Gas Saw Movable Cutting Table Adjustable Cutting Guide Blade Wrench MK DiaMonD Warranty CarD Owner s Manual Honda Engine Manual Warranty Card 12
TRANSPORT TRANSPORT The MK-1280 Gas Saw weighs approximately 200 pounds; two people should be used when transporting the saw. CAUTION 1. Never transport the MK-1280 Gas Saw with water in the Water Basin. 2. The MK-1280 Gas Saw weighs approximately 200 pounds; two people are required when lifting or moving. NOTE: Remove the Movable Cutting Table when transporting the MK-1280 Gas Saw. The MK-1280 Gas Saw is designed with handles on the front & rear of the saw for ease of transport. To transport Verify the Movable Cutting Table is removed Grasp the saw by the handles in the front & rear of the saw Lift and transport the saw to the desired work location Remove Movable Cutting Table Handle Handle 13
ASSEMBLY Movable Cutting Table Installation While holding the front, position movable Cutting Table roller wheels above Guide Rails. Seat movable Cutting Table roller wheels on saw Guide Rails. (C) Verify movable Cutting Table is seated correctly by moving table back and forth. Adjustable Cutting Guide Installation NOTE: The adjustable Cutting Guide can be used on either side of the Diamond Blade. Loosen adjustable Cutting Guide retaining thumbscrews by turning counter-clockwise. Seat and tighten the adjustable Cutting Guide retaining thumbscrew. 14
ASSEMBLY DIAMOND BLADE INSTALLATION NOTE: When installing the diamond blade retaining-bolt, ensure the threads of the bolt are aligned with the threads of the blade shaft so as not to cross-thread the bolt. Loosen Blade Guard Bolts. Remove the Blade Guard. Remove retaining screw, (left-hand thread) and Outer Flange. (C) Install Diamond Blade onto Blade Shaft. (D) Install retaining screw and outer flange. (E) Tighten retaining screw and Outer Flange. Reverse process to install. (F) Install Blade Guard and tighten bolts. 15
FILLING OIL RESERVOIR FILLING OIL RESERVOIR NOTE: Refer to the Engine Manual for your specific engine. Remove Dipstick. Fill Oil Reservoir. NOTE: When installing the Oil Dipstick, ensure the threads are aligned with the threads of the Oil Reservoir so as not to cross-thread the dipstick. Bottom Edge (C) Add Oil until level reaches the bottom edge of fill hole. (D) Install Dipstick. (E) Clean Up. 16
FILLING FUEL TANK FILLING FUEL TANK NOTE: WARNING 1. Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel. 2. To fuel, stop engine if running, and allow it to cool. 3. Refuel in a well-ventilated area. 4. Keep gasoline away from appliance pilot lights, barbecues, electric appliances, power tools, etc. 5. Wipe up spills immediately. 1. Fuel can damage paint and plastic. Be careful not to spill fuel when filling the fuel tank. Damage caused by spilled fuel IS NOT covered under the warranty. 2. DO NOT use stale or contaminated gasoline, or an oil/gasoline mixture. 3. Use unleaded gasoline with a pump octane rating of 86 or higher. NOTE: Refer to the Engine Manual for your specific saw. Fill Throat Remove Fuel Cap. Fill Fuel Tank. Upper Limit (C) Verify fuel level is below the throat of the Fuel Tank. (D) Install Fuel Cap. 17
INSPECTION PRE-START INSPECTION The pre-start inspection should be performed before beginning any job. CAUTION If the Diamond Blade shows signs of fatigue cracking, replace the blade before starting work. Inspect Blade for damage Verify Blade correct for material being cut. Inspect Wooden Strip for excessive grooves. (C) Verify Movable Cutting Table moves freely. Proper Oil Level (D) Inspect Engine for leaks. (E) Inspect MK-1280 Gas Saw for general damage, loose connections and hardware. Low Level (F) Check for proper oil level. (See Engine Manual if low) Fill Throat Upper Limit (G) Check for proper fuel level. (See Engine Manual if low) (H) Check Air Filter for cleanliness. (See Engine Manual) 18
STARTUP WET CUTTING Attach Hose. Open Cooling flow control valve to adjust flow. DRY CUTTING Attach Vacuum Hose to Vacuum Port. 19
STARTUP Refer to Engine Manual for your specific saw ENGINE START WARNING 1. Carbon monoxide gas is toxic. Breathing it can cause unconsciousness and/or death. 2. Avoid any areas or actions that expose you to carbon monoxide. NOTES: If restarting a warm engine leave the Choke Lever in the OPEN position. Place Fuel Valve in the ON position. Place Choke Lever in the CLOSED position. (C) Move the Throttle Lever to 1/3 Open. (D) Place Engine Switch in the ON position. (E) Pull Starter Cord slowly, until slack is removed and resistance is felt. (F) Pull Starter Cord straight back in a smooth fast motion. (G) Place Choke Lever in the OPEN position when engine is warm. 20
OPERATION CUTTING CAUTION NOTE: DO NOT FORCE TOOL, it will do the job better and safer at the rate for which it was designed. Skip step C, if cutting dry. Set the Adjustable Cutting Guide. Position the masonry piece. (C) Open the Cooling Flow Control Valve and adjust flow. Verify cooling flow exists on both sides of the blade. (D) Start saw. Move the Throttle Lever to start saw adjust blade speed (faster blade speed for smoother cuts) Refer to your specific engine manual. (E) Setup to Cut. (F) Slowly push piece toward the blade continue until the cut is complete. (G) Move the Throttle Lever to lower blade speed. Refer to your specific engine manual. (H) Turn the engine OFF when work is complete. 21
CLEANUP Normal Engine Shutdown NOTE: Refer to engine manual for your specific engine. Move the Throttle Lever to lower blade speed. Place Engine Switch in the OFF position. (C) Place Fuel Valve in the OFF position. Emergency engine SHUTDOWN NOTE: Refer to engine manual for your specific engine. Place Engine Switch in the OFF position. Place Fuel Valve in the OFF position. CLEANUP CAUTION Engine parts are extremely hot following use, allow engine to cool 1/2-hour before cleaning. Use care during cleanup to avoid injury. Clean Movable Cutting Table Guide Rails with soap and clean water. Clean Movable Cutting table Roller Wheels. 22 (C) Clean exterior surface (except engine) with soap and clean water.
MAINTENANCE (D) Clean Air Filter. Refer to Engine Manual. (E) Clean engine throttle linkage with a dry cloth. Refer to Engine Manual. INITIAL MAINTENANCE Perform the following after initial purchase and operation of the MK-1280 Gas Saw. Change engine oil after first month or first 20 operating hours. Refer to Engine Manual. Check and adjust V-belt tension following first 48 hours of operation. See Micro V-belt Inspection. MAINTENANCE FOLLOWING USE To extend the life of the MK-1280 Gas Saw, the following procedure should be performed after each use. Lubricate all points listed below with light oil such as, MK Linear Guide Bar Lubricant, 3-IN-ONE oil, or other mulitpurpose spray lubricant. Lubricate the Movable Cutting Table Roller Wheels. Lubricate engine throttle linkage Points and Adjustment Bar. Refer to Engine Manual. 23
MAINTENANCE Monthly MAINTENANCE The following should be performed monthly. Items should be lubricated as directed. Remove and clean Diamond Blade Outer Flange and Retaining Bolt. Verify all engine mounting bolts are tight. (C) Check Movable Cutting Table Roller Wheels for wear. (D) Clean engine air filter. Refer to Engine Manual. Six (6) Month MAINTENANCE Perform the following maintenance every six months. Change engine oil. Refer to Engine Manual. Clean Fuel Sediment Cup. Refer to Engine Manual. (C) Clean and Readjust engine Spark Plug. Refer to Engine Manual. 24
MAINTENANCE yearly MAINTENANCE Perform the following maintenance every year. Refer to Engine Manual 1. Replace engine Air Filter. Refer to Engine Manual 2. Replace Spark Plug. Refer to Engine Manual 3. Check/Adjust Idle Speed Check/adjust Valve Clearance. Refer to Engine Manual 4. Inspect Micro-V Belts. two-yearly MAINTENANCE 1. Check Fuel Line. Refer to Engine Manual Blade Dressing Like most cutting instruments, a diamond blade performs best when it is dressed. Over time and use, diamonds on the outer edge will become smoothed or glazed over. This will reduce grinding efficiency and may cause the blade to wander or bend giving the illusion of an alignment problem. When this occurs, the blade will need to be dressed. The diamond blade can be dressed using the MK Dressing Stick (part number 152792) and by following the steps below. NOTE: Skip Steps C and D if cutting dry. Setup MK-1280 Gas Saw for operation (See Setup, Startup, Adjustment Operation). Position the Dressing Stick. (C) Open the Cooling Flow Control Valve and adjust flow. Verify cooling flow exists on both sides of the blade. (D) Move the Throttle Lever to adjust blade speed. (E) Cut the Dressing Stick 7 or 8 times to dress the Blade. Turn off engine. 25
MAINTENANCE Movable cutting table wheel change out NOTE: All four (4) Movable Cutting Table, Roller Wheels should be replaced at the same time (MK Diamond Part No. 133090) Remove the Movable Cutting Table. Using a 1/2 inch wrench, remove the Roller Wheel Retaining Nut and Roller Wheel. Rotate counterclockwise to loosen. Clean the Roller Wheel Shaft Holes. (C) Install the Wheel/Washer Assembly into Movable Cutting Table Wheel Shaft Hole and tighten. Lubricate the wheels. 26
MAINTENANCE Protective wooden strip replacement The protective wooden strip is to protect the Movable Cutting Table from damage during operation. Over time, the wooden strip will become grooved from use. A grooved wooden strip will not support masonry during cutting causing the blade to break through the piece instead of performing a smooth cut (MK Diamond Part No. 158283). Place Movable Cutting Table on work bench with Roller Wheels up. Remove the two Protective Wooden Strip Retaining Screws. (C) Replace worn Protective Wooden Strip. (D) Tighten screws to secure Wooden Strip. Install the movable Cutting Table. 27
MAINTENANCE Micro-V belt inspection, adjustment and replacement NOTE: When a new belt is installed, it should be inspected and re-tensioned after the first forty-eight (48) hours of operation. Micro-V belt Remove Outer Belt Guard. Check Belt tension. (C) To change tension loosen all four engine mount bolts. (D) Tighten or loosen belt tension as required. (E) Tighten Engine mount bolts. (F) Replace outer Belt Guard. COOLING FLOW Rodding cooling channels is performed by removing the flow control valve and then inserting a small wire rod through the cooling channel inlet, on the top of the Blade Guard and directing the rod out through each of the diamond blade cooling flow outlet ports, located on the underside of the Blade Guard. The cooling channels should be rodded until each of the outlet ports are open and free of foreign debris. 28
TROUBLESHOOTING WARNING BLADE WILL NOT CUT PROPERLY Turn the ON/OFF switch to the OFF position and place the Fuel Valve in the CLOSED position before performing the following. Check for Smoothness or Glazing. Check for Proper Rotation. (C) Ensure Blade Core is not bent. (D) Verify blade is correct for material being used. MOVABLE CUTTING TABLE DOES NOT MOVE CORRECTLY Check that the Guide Rails are clean. Clean if dirty. Check the Movable Cutting Table Roller Wheels and replace if necessary. 29
TROUBLESHOOTING BLADE STOPS TURNING Verify the engine is running. If not, restart (See Setup, Startup, Adjustment, Operation and Shudown). Check Micro-V Belt (See Micro- V Belt Inspection, Adjustment and Replacement). Engine STOPS NOTES: Refer to Engine Manual The Honda Engine is equipped with an oil level sensor that will stop the engine on a low oil level Fill Throat Proper Oil Level Pull Starter Cord straight back in a smooth fast motion. Upper Limit Verify fuel level is below the throat of the Fuel Tank. Low level (C) Check for proper oil level (See Maintenance section if low). (D) Clean and readjust engine Spark Plug (Refer to Engine Manual) 30
NOTES 31
MK-1280 gas Saw Exploded view 40 17 33 31 37 2 32 21 8 7 10 1 43 3 4 11 34 23 35 5 6 26 5 27 14 25 24 27 16 6 24 5 6 38 36 26 28 FIGURE 1 - MK-1280 SAW - P/N 166561
MK-1280 gas Saw Exploded view FIGURE 1 - MK-1280 PAVER SAW - P/N 166561 13 41 5 39 32 22 5 20 12 9 15 29 18 19 33
MK-1280 gas Saw parts list FIGURE 1 - MK-1280 PAVER SAW - P/N 166561 Item Description Part # Qty 1 NUT, 3/8-16 HEX 101188 3 2 NUT, HEX, 5/16-18 101196 4 3 WRENCH, 3/4 BOX END 134056 1 4 HOSE, WATER VINYL 3/8 X 1/2, 30 150845 1 5 WASHER, 3/8 SAE FLAT 150923 13 6 WASHER, 3/8 SPLIT LOCK 150925 11 7 SCREW, THUMB 5/16-18 X 1-1/2 151155 1 8 NUT, SQUARE 5/16-18 151156 1 9 FITTING, 1/2 MNPT X 3/4 FNH 151322 1 10 WASHER, LOCK, SPLIT, 5/16 151747 4 11 WASHER, FLAT, SAE, 5/16 151754 8 12 WASHER, 1/4 SAE, FLAT 151915 4 13 SCREW, 3/8-16 X 3-3/4 HEX HD CAP 152504 1 14 SCREW, HEX HD CAP, 3/8-16 X 1 152507 2 15 NUT, LOCK STEEL 1/2 NPT 152729 1 16 NUT, 3/8-16 HEX CENTERLOCK 153522 4 17 SCREW, HEX, 3/8-16 X 3/4 153527 1 18 FITTING, 1/2 MNPT X 3/8 BARB 153653 1 19 SCREW, 1/4-20 X 1/2 TRUSS HEAD 153880 7 20 NUT, HEX TW, 1/4-20 153941 4 21 SCREW, HEX, 5/16-18 X 2-1/4 153951 4 22 BOLT, HEX HEAD TAP, 3/8-16 X 3 155830 1 23 SCREW, 3/8-16 X 2-1/2 HEX HEAD CAP 156030 2 24 MOUNT, SHOCK MK-5000 156105 8 25 STAND OFF, SHOCK MOUNT 156560 4 26 SCREW, HEX HD CAP, 3/8-16 X 2-3/4 156774 3 27 WASHER, FENDER, 3/8 ID X 1-1/2 OD 158523 8 28 BELT GUARD, OUTER, ARBOR, COMP 160888 1 29 FITTING, 1/2 NPT COUPLER 164208 1 30 ASSY, WARN LBL, MASNRY ELEC GAS 166011-GAS 1 31 FRAME, MAIN MK-1280 166555 1 32 BACKSPLASH, MK-1280 166576 1 33 ASSY, TABLE, MK-1280 166577 1 34 ASSY, ENGINE, HONDA, MK-1280 166578 1 35 ASSY, ARBOR, MK-1280 166579 1 36 BELT, 16J420 166580 1 37 ASSY, BLADE GUARD, 16, MK-1280 166581 1 38 GUARD, BELT, INNER 166585 1 39 GUIDE, TENSION 167750 1 40 BRACKET, BELT GUARD 167763 1 41 CAP, VACUUM 167777 1 42 OWNER S MANUAL, MK-1280 168579 1 43 CASTING, SQUARING ARM-COMP 231276 1 34
MK-1280 gas Saw PARTS LIST FIGURE 2 - ASSY, TABLE - P/N 166577 Item Description Part # Qty 1 WHEEL, CONVEYOR CART 133090 4 2 SCREW, HEX HD, 1/4-20 X 3/4 152370 4 3 NUT, HEX W/WSHR, 1/4-20 153941 4 4 NUT, HEX, TW, 5/16-18 153942 4 5 WOOD STRIP, TABLE INSERT 158283 1 6 SCREW, DRYWL, FLAT HD, #6X1 159906 2 7 CASTING, TABLE, MK-1280 165398 1 8 BACKSTOP, TABLE 166584 1 35
MK-1280 gas Saw EXPLODED VIEW & parts list FIGURE 3 - ASSY, ENGINE, HONDA - P/N 166578 6 1 5 4 8 7 2 7 9 10 4 3 Item Description Part # Qty 1 NUT, 3/8-16 HEX 101188 4 2 KEY, SQUARE, 1/4 X 1-3/4 150796 1 3 SCREW, 3/8-16 X 1-3/4 HEX HD 150920 4 4 WASHER, 3/8 SAE FLAT 150923 8 5 WASHER, 3/8 SPLIT LOCK 150925 4 6 ENGINE, HONDA GX270 155396 1 7 SCREW, SET, KNR CUP, 5/16-18 X 3/8 157083 2 8 ASSY, OIL DRAIN, 10MM 157577-01 1 9 PULLEY, 16J25 X 1.0 BORE 158470 1 10 PLATE, MOTOR MOUNT 166556 1 36
MK-1280 gas Saw EXPLODED VIEW & parts list FIGURE 4 - ASSY, ARBOR - P/N 166579 Item Description Part # Qty 1 KEY, 3/16 SQ X 1-1/8 150344 1 2 BEARING, ARBOR HOUSING 154594 2 3 CASTING, 2000/5000 ARBPR - COMP 154637 1 4 SCREW, 5/16-18 X 3/8 SOCKET HEAD SET 157084 2 5 PULLEY, 16J28 X.75 BORE 160362 1 6 SCREW, 1/2-13 X 1-1/12 HEX HEAD, LEFT HAND 160818 1 7 FLANGE, OUTER, MASONRY, 4 161304 1 8 FLANGE, INNER, MASONRY, 4 161305 1 9 SHAFT, BLADE 166586 1 37
MK-1280 gas Saw EXPLODED VIEW & parts list FIGURE 5 - ASSY, 16 BLADE GUARD - P/N 166581 Item Description Part # Qty 1 ELBOW, 1/4 MNPT STREET 154615 1 2 FITTING, 1/4 MNPT X 3/8 BARB 154659 1 3 SCREW, HEX HEAD 3/8-16 X 1-1/2 LG. 156656 2 4 CASTING, BLADE GUARD, 16 - COMP 166558 1 5 VALVE, BALL, 1/4 M TO 1/4 F 231248 1 38
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ORDERING & RETURN INSTRUCTIONS 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: The Model Number of the saw The Serial Number of the saw Where the saw was purchased and when The Part Number for the part(s) being ordered The Part Description for the part(s) being ordered NOTE: Standard orders are $50.00 or more when ordering direct from MK Diamond. A $6.00 charge will be added to orders having a net billing value under $50.00. A nominal handling fee of $5.00 may apply to some orders. All parts may be ordered by calling toll free to 800 421-5830 or 310 539-5221 and asking for Customer Service. For technical questions, call 800 474-5594. RETURN MATERIALS POLICY To expedite the service relative to the return of a product purchased through MK Diamond, please observe the following: NOTE: When returning all items, they must have been purchased within the previous twelve (12) months. Have the Model Number of the saw Have the Serial Number of the saw Have the location of where the saw was purchased Have the date when the saw was purchased Contact Customer Service for approval to return the item(s) Obtain a Returned Goods Number (RGA) authorizing the return Follow the packaging instructions in the following section Ensure the RGA number is on the outside of the returned package Ensure your item(s) are prepaid to the destination For returned items, call toll free to 800 421-5830 or 310 539-5221 and ask for Customer Service. PACKAGING INSTRUCTIONS Remove the Cutting Head and Support Angle Assembly Dry the saw before shipping When packing, include the following: Saw, Diamond Blade, Blade Guard and Support Angle Assembly and Adjustable Cutting Guide (Other Accessories are not required) Package the unit in its original container or one of comparable size (do not ship the unit partially exposed) Ensure all parts are secured in the packaging to prevent moving AUTHORIZED SERVICE CENTERS For quicker repair time, you may contact MK Diamond Customer Service, toll free, at 800 421-5830 or 310 539-5221 for the Authorized Service Center closest too you or visit our web site at www.mkdiamond.com. For technical questions, call 800 474-5594. 40
WARRANTY CONTACT: Please contact MK Diamond Products, Inc. Customer Service Department with any questions you might have regarding distributors, parts or service. Telephone: (800) 421-5830 Fax: (310) 539-5158 E-mail: Customer_Service@MKDiamond.com Customer Service Hours: Monday through Friday, 6AM-4PM PST MK Diamond Products, Inc. 1315 Storm Parkway Torrance, CA 90501 MK DIAMOND PRODUCTS, INC. LIMITED WARRANTY MK DIAMOND PRODUCTS, INC. will guarantee every machine they build, to be free from defects in material and workmanship for (1) one year from date of purchase. The obligation of MK DIAMOND PRODUCTS, INC. under this warranty is limited to the repair or replacement of any parts which, under normal use, prove to be defective in material or workmanship. The parts involved or the unit in question should be returned to MK DIAMOND PRODUCTS, INC. or to a point designated by us, transportation prepaid. This warranty does not obligate us to bear the cost of labor or transportation charges in connection with replacement or repair of defective parts. Likewise, it shall NOT apply to any unit which has been subjected to misuse, neglect or accident. This warranty does NOT apply to any machine which has been repaired or altered outside our factory. This warranty does NOT obligate MK DIAMOND PRODUCTS, INC., with respect to items not of our manufacture, such as engines, motors, hydraulics, etc., which are subject to their own guarantees and warranties. We shall in no event be liable for consequential damages or contingent liabilities arising out of failure of any equipment or parts to operate properly. COPYRIGHT 2017, 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 respective owners and used with permission. MK Diamond may have patents, patent applications, trade marks, copyrights of other intellectual property right covering this product in this document. This manual MUST accompany the equipment at all times. This manual is considered a permanent part of the equipment and should remain with the unit if resold. The information and specifications included in this publication were in effect at the time of approval for printing. 41
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MK-1280 gas Saw Series OWNERS MANUAL & PART LIST MK Diamond Products, Inc. 1315 Storm Parkway Torrance, CA 90501 Toll-Free: (800) 845-5830 Phone: (310) 539-5221 Fax: (310) 539-5158 www.mkdiamond.com