Milwaukee MK-Manta I User's Manual
Contents
1. 5 O 1 MANTA I Revision 03 05 Effective Date March 2 2005 MANTA PARTS LIST cont 154491 154473 154494 151307 157375 154490 153459 154556 154715 154301 158430 158385 158387 152587 152591 153681 154489 154491 154494 151307 157375 154556 154490 153459 154715 n a 154301 511 E12 E13 Screw 6 32 x gt Pan Head E14 E15 E7 E8 E9 E17 EB 581 582 Screw 14 20 Socket Head EB4 EB5 EB6 EB7 EB8 EB9 EB10 EB11 EB12 EB13 Screw 6 32 x gt Pan Head EB14 EB15 l EB16 E8 E9 E11 E12 E13 E14 E15 E17 EB EBI EB2 683 EB4 EBS 686 EB7 EBS EB11 6812 14 EB15 EB16 3 158425 2 157525 153684 157445 154574 153524 150924 154741 154475 GB2 154476 Valve 1 4 GB7 Hose 38LD Ar 6 154656 GB8 Coupler Body 1 4 1 154617 GB9 Fitting 1 4 MNPT X 3 8 2 154659 GB10 Ferrell Crimp 2 154660 GB11 Base Vacuum Pump 154495 GB12 Handgrip 3 4 X 4 9 16 Black 139949 GB13 Screw 10 32 X 1 2 Phillips Pan Head Cap 151052 GB14 Foot Rubber 154496 GB15 Screw 1 4 20 X 3 4 Flat Head Phillios Cap 154657 GB16 14 0 4 151893 H Assembly Handle Slip 1 n a Hi Hub Slip Handle o LL 157321 602. 8 Monitor the water flow If the water flow is adequate the water leaving the cut should be slightly sludgy When cutting metal rebar the water should have a gray metal coloring When drilling into prestressed concrete the bit may cut into the hardened steel cable under tension As the bit cuts through each strand the tension in the cable is released The diamond segments on the bit crown can be damaged by the loose wires The best prevention for bit damage is to use a core bit designed especially for drilling in prestressed concrete 9 When the cut is complete keep the drill motor on and rotate the handle to bring the bit up out of the hole The bit may become stuck if the motor is turned off before the bit is completely clear of the hole Once the bit is clear of the hole tighten the carraige lock knob turn off the motor and the water supply NSEHJNormally the core will drop out of the bit and remain in the hole However in cases where the core sticks in the bit it is sometimes necessary to push the core up and down with the water running to allow the core to drop out Sometimes very light tapping on the barrel of the bit with a piece of wood will loosen the core A CAUTION Perform this action only with the motor turned off and the unit unplugged to prevent accidental starting and injury Exercise extreme caution in hand placement when removing a stuck core as it can be heavy and inflict injury Revision 03 05 Effective Da
3. F1 F3 F4 F5 F6 F7 GB N N 2 g NIN 20 Revision 03 05 Effective Date March 2 2005 MANTA I MANTA I MANTA PARTS LIST cont H2 H3 H4 Spoke Slip Handle Knob Ball gt 20 Female Screw 1 4 20 X Thumb Screw 14 20 X 1 4 Socket Head Set Assembly Accessory Pack not shown Carton Accessory Pack Owner s Manual MK Manta 1 Core Drill Card Warrant MK Sell Sheet Assembly Motor Milwaukee 4094 Motor Milwaukee 4094 Shear Pin 20A 120V Assembly Motor Milwaukee 4096 Motor Milwaukee 4096 Slip Clutch 20A 120V Assembly Motor Milwaukee 4004 Motor Milwaukee 4004 Slip Clutch 20A 120V Assembly Motor Milwaukee 4097 20 Motor Milwaukee 4097 20 Slip Clutch 15A 120V Assembly Motor Milwaukee 4090 Motor Milwaukee 4090 Shear Pin 15A 120V Assembly Motor Eibenstock EBM 300 3 P Motor Eibenstock EBM 300 3 P Slip Clutch 20A 120V Assembly 32 Motor Mount Plate Hybrid Milwaukee M1 Casting Motor Mount Plate Hybrid M2 Screw 3 8 16 x 1 Socket Hd Cap M3 Key 3 8 x 3 8 5 Screw 20 x 1 0 Socket Hd Assembly Motor Mount Plate Hybrid 748 Casting Motor Mount Plate Hybrid MA2 Screw 3 8 16 x 1 4 Socket Hd Cap MA3 Key 3 8 x 3 8 5 MA4 Screw 28 x 1 5 Socket Hd Cap Assembly 32 Motor Mount Plate Hybrid Ebinstock Casting Motor Mount Plate Hybrid Screw 3 8 16 x 1 Socket Hd Key 3 8 x 3 8 5 Screw M8 x 1 25 x 25mm Soc
4. MONTHS AND BE IN RESALABLE CONDITION A RESTOCKING CHARGE OF 15 WILL BE BILLED PARA ORDENAR PARTES DE REPUESTO S RVASE TENER LISTA LA SIGUIENTE INFORMACI N ANTES DE LLAMAR N MERO DE SERIE DE LA SIERRA N MERO DE MODELO DE LA SIERRA D NDE Y CUANDO SE COMPR LA SIERRA N MERO DE LA PARTE DESCRIPCI N DE LA PARTE TODAS LAS PARTES LISTADAS SE PUEDEN PEDIR A TRAV S DE SU DISTRIBUIDOR AUTORIZADO O DIRECTAMENTE A MK DIAMOND SI LA PARTE NO EST EN EXISTENCIA LOCAL LLAME AL N MERO DE TEL FONO INDICADO ABAJO Y PIDA EL DEPARTMENTO DE ATENCI N AL CLIENTE PARA SOPORTE T CNIO LLAME AL 1 800 474 5594 SIN CARGO EL PEDIDO M NIMO ES DE 25 00 POL TICA DE DEVOLUCI N DE MERCANC A EN CASO DE QUE SEA NECESRIO DEVOLVER ALG N PRODUCTO QUE USTED HAYA COMPRADOA MK DIAMOND S VASE OBSERVAR LO SIGUIENTE USTED DEBE DIRIGIRSE A NUESTRO DEPARTAMENTO DE ATENCI N AL CLIENTE PARA RECIBIR UNA APROBACI N DE DEVOLUCI N DE MERCAN A NO SE ACEPTAR MERCANC A DEVUELTA SIN EL CORRESPONDIENTE N MERO DE PAGADO HASTA SU DESTINO TODA LA MERCANC A DEVUELTA DEBER EMBARCARSE CON FLETE MESES ANTERIORES Y ESTAR EN CONDICIONES DE PODERSE VENDER COMO NUEVA SE APLICAR UN CARGO DE 1596 POR REINTEGRO AL ALMAC N POUR COMMANDER LES PI CES DE RECHANGE VEUILLEZ AVOIR LES INFORMATIONS SUIVANTES AVANT D APPELER NUM RO DE S RIE DE LA SCIE NUM RO DE MODELE DE LA SCIE DATE ET LIEU D ACHAT R F RENCE DESIGNATION DE LA PIECE TOUTES LES PI CES I
5. Core Drill a For your Safety These safety precautions should be followed at all times Failure to follow these safety precautions could result in injury to yourself and others Safety is a combination of operator common sense and alertness at all times when this drill rig is being used For your own safety and protection do not attempt to operate the drill until it is completely assembled and installed according to the instructions and until you read and understand all safety and operating instructions Take time to read and understand fully the owners manual and all safety labels attached to the core drill Use safety equipment Everyone in the work area should wear safety goggles or glasses with side shields complying with current safety standards Wear hearing protection during extended use and a dust mask for dusty operations Hard hats face shields safety shoes etc should be used when specified or necessary Use the right tool Do not use a tool or attachment to do a job for which it is not recommended Do not alter the tool Keep your work area clean and safe to avoid accidents Maintain a safe zone and keep all visitors at a safe distance from the work area Always insure that the switch is off before plugging unit into electrical power Never leave the drill running unattended Turn power off Do not over reach maintain control Keep proper footing and balance at all times Maintain a firm grip Use extra care whe
6. fracture the diamond segments B Vacuum base The MK Manta I Core Drill Rig is equipped with a vacuum base This base is designed to provide approximately 1800 pounds of total holding power In order to provide the most rigidity to your core rig the unit should be used on a relatively smooth surface such as concrete If the surface is too porous or rough the vacuum mount may not hold securely 1 Turn the vacuum pump on and step on the vacuum base until a vacuum is created and the base adheres to the work surface 2 Level the rig using the leveling bolts Use a minimum amount of adjustment to the leveling bolts to avoid breaking the vacuum seal The vacuum gauge should read approximately 25 pounds per square inch PSI of pressure If the gauge reads 20 PSI or less check the work surface for conditions which may interfere with adequate suction such as cracks dirt or debris on a porous surface AWARNING Do not drill if the gauge reads less than 20 PSI Do no use vacuum base on cracked uneven porous or vertical surfaces C Additional support For added rigidity you may use a telescoping extension assembly in conjunction with a concrete anchor or vacuum base To use a telescoping assembly first level the rig with the leveling screws Secure the rig with an anchor or the vacuum base Place the top flange of the extension against a ceiling or wall and place the other end on the jack screw of the column The assembly is adjusta
7. remove drilling poor break core Start over with fastening improved fastening of machine 2 Stop rotation Bit deviates guide Disconnect machine adjust ways on cradle guidance have too much clearance No clearance Replace bit between tube I D or O D and crown 1 D or O D 1 Stop rotation Drill impacted Use recommended speed for to stall at lower the bit diameter used Raise bit 2 Raise bit speeds when it begins to load down Feed bit slowly when chattering begins If within one 1 year from the date of purchase this MK Diamond drill fails due to a defect in material or workmanship MK will repair it free oi charge by returning the unit 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 operating improperly Selected components such as motors engines are excluded from this warranty and are subject to the manufacturer s warranty Each manufacturer carries its own warranty conditions which are listed on the literature accompanying the motor engine at the time oi purchase MK Diamond Products may act as a warranty station for the motor engine repairs based on individual agreement with the manufacturer This warranty is in lieu of all other warranties expressed or implied Revision 03 05 Effective Date March 2 2
8. the ammeter may jump slightly showing a heavier load If this occurs do not decrease pressure or you may damage the diamonds The Manta may be operated with the ammeter needle into the red area for the short period of time that it takes to cut through a steel rod Water Supply An adequate supply of clean water is necessary for drilling Connect the water supply hose to the hose fitting on the output of core drill motor Take precautions that the water supply will not be interrupted during the drilling operations If a bit is run dry it can be ruined in a few seconds MANTA I Revision 03 05 Effective Date March 2 2005 10 Carriage Rigidity Shear Pin and Clutch Protection Mounting Bits Drilling Procedure It is essential that the carraige fits snugly on the column to prevent the motor or bit from wobbling during drilling Through normal use the carraige may loosen from the column and begin to wobble Before drilling always make sure the carraige is rigid by trying to wiggle it with your hand If the carraige is secure it should not move If it does move tighten the adjustment screws for the nylon gibs that secure the carraige to the column Tighten only enough to remove the play Do not over tighten The MK Manta I Core Drill uses either a shear pin or a friction clutch to protect the gear and motor against overload The shear pin drives the outer portion of the drive spindle If the motor should overload the pin will shea
9. to bit face Wear picture of polished diamonds Worn or open guide ways on cradle Borehole is getting Deep grooves undulated Protruding steel Spindle is offset Bit out of true Insufficient bit load Increase bit load Reduce RPM or resharpen bit Break core clean bottom of hole or reduce RPM and drill with increased bit load Clean bit face by sharpening methods such as drilling dry at low RPM ina concrete block 3 8 deep max Increase water flow rate Clean bit face by drilling in concrete block Reduce RPM Increase bit load Bit Spaad tee mel Use lower speed increase bit load Adjust guidance on carraige Adjust guidance on carraige Nicks or dirt on mounting faces Bit is deformed Replace bit Heavy Wear Poor cleaning of Improve flushin abrasive cuttings P 9 Crown clearance Replace bit worn Out Revision 03 05 Effective Date March 2 2005 If Leaking can be tolerated continue drilling with increased attention PROBLEM WHAT TO DO INDICATION SOLUTION RECOMMENDATIONS Bit Stuck Shear Pin Fail Warranty Information 14 Loose material Step 1 Apply wrench and rotate cut steel or bit in both directions while bit is aggregates is under tension If not successful blocking between core and bit or between borehole Step 2 Try to over drill a hole and bit slightly larger than the stuck bit 1 Try to raise bit if impossible Drill moved during Disconnect bit and
10. 005 MANTA I MANTA I COMBO EXPLODED VIEW AND PARTS LIST TWIN COMBO MANTA EXPLODED VIEW 15 Revision 03 05 Effective Date March 2 2005 MANTA I MANTA EXPLODED VIEW cont MANTA ANCHO Revision 03 05 Effective Date March 2 2005 MANTA I MANTA EXPLODED VIEW cont EMBLY 7 If 014 2 27 zz D7 gt D4 s p 8 d i H3 MANTA I gt gl HS H y E w 2 TER E ol 22 HI 2 H EG Li Ks e ih SG ASSEMBLY H JA a ASSEMBLY E EA El 12 a El i El El 3 al Ih El U s e a 3 b OE El 5 Revision 03 05 Effective Date March 2 2005 E4 E E ES 14 El El EB9 El El MANTA EXPLODED VIEW cont e MN e 4 B4 7 ch 2 M 736 A eC 7 jg A PNA li j bl LES 4 i ASSEMBL M4 s gt I oi 2 M ASSEMBLY F 18 Revision 03 05 Effective Date March 2 2005 MANTA I MANTA PARTS LIST PARTS LIST Q Assembly M1 Base Vacuum Bas
11. MODEL MK MANTA I CORE DRILL OWNERS MANUAL PARTS LIST 8 OPERATING INSTRUCTIONS CAUTION READ SAFETY AND GENERAL INSTRUCTIONS CAREFULLY BEFORE USING SAW FOR THE FIRST TIME PLEASE RECORD THE SERIAL NUMBER OF YOUR DRILL IN THIS BLOCK E o n SERIAL NUMBER FOR YOUR ONE 1 YEAR WARRANTY TO BE EFFECTIVE COMPLETE THE WARRANTY CARD INCLUDE THE SERIAL NUMBER AND MAIL IT IN AS SOON AS POSSIBLE Manual Part No 161115 Revision 03 05 MK Diamond s Manta I Core Drill Operators Manual General Safety Instructions Safety Messages and Symbols Hazard Symbols Damage Prevention Messages Safety Labels Drill Features Motor Carraige Column and Base Vacuum Base and Pump Water System Unpacking Assembl Main Assembly Feed Handle and Meter Box Vacuum Base Gasket Final Assembly Drilling Operations Electrical Requirements Grounding Extension Cords Securing the Rig Drilling Speeds Drilling Pressure and the Ammeter Water Supply Carraige Rigidity Shear Pin and Clutch Protection Mounting Bits Drilling Procedure Deep Drilling Maintenance Cleaning Vacuum Base Gasket Trouble Shooting Warranty Information Exploded View amp Parts List Exploded View 15 18 Parts List 19 21 MK Diamond Authorized Service Center Back Cover How to Order Repair Parts Back Cover Returned Merchandise Policy Back Cover Revision 03 05 Effective Date March 2 2005 MANTA I General Safety Instructions for the MK Manta I
12. NDIQU ES PEUVENT TRE COMMAND ES AUPR S DE VOTRE DISTRIBUTEUR LOCAL OU AUPR S DE MK DIAMOND SI LA PI CE N EST PAS STOCK E LOCALEMENT VEUILLEZ APPELER NOTRE NUM RO D APPEL GRATUIT INDIQU CI DESSOUS ET DEMANDER LE SERVICE DE LA CLIENTELE POUR SUPPORT TECHNIQUE VEUILLEZ CONTACTER LE 1 800 474 5594 UN MINIMUM DE COMMANDE 25 00 DOLLARS US EST DE RIGUEUR POLITIQUE DE RETOUR DE MARCHANDISES SI VOUS VOUS TROUVEZ DANS L OBLIGATION DE RETOURNER UN PRODUIT DONT VOUS AVEZ FAIT L ACHAT MK DIAMOND VEUILLEZ SUIVRE LES CONSIGNES SUIVANTES NOTRE SERVICE DE CLIENTELE DEVRAIT ETRE CONSULT POUR APPROBATION AVANT DE RETOURNER TOUTE MARCHANDISE LA MARCHANDISE NE SERA EN AUCUN CAS ACCEPT E SANS NUM RO D AUTORISATION DE MARCHANDISES RETOURN ES TOUTES LES MARCHANDISES RETOURN ES DOIVENT AVOIR FAIT L OBJET DE L ACHAT DANS LES 12 MOIS PR C DENTS ET TRE EN TAT DE REVENTE UNE CHARGE DE RESTOCKAGE DE 1596 SERA FACTUR E MK Diamond Products Inc 1315 Storm Parkway Torrance CA 90509 2803 1 800 421 5830 FAX 1 310 539 5158 Manual Part No 161115 Revision 03 05
13. ble up to 14 feet Use the jack screw to tighten the assembly and to make small adjustments The MK Manta features two speed motors by Milwaukee and a three speed motor by Eibenstock Specifications for the different motors are listed in the following table Revision 03 05 Effective Date March 2 2005 MANTA I Drilling Speeds Manufacturer Model AMP Volts Speed RPM Suggested Dia in Medium Aggregate Eibenstock EBM 20 120 Low 270 Low 4 300 3 P Medium 700 Medium 2 6 High 1250 High 3 4 4 Milwaukee 4004 20 120 Low 300 Low 4 High 600 High 14 Milwaukee 4090 15 120 Low 375 Low 5 8 High 750 High 2 1 2 5 Milwaukee 4094 20 120 Low 450 Low 67 10 High 900 High 27 6 Milwaukee 4096 20 120 Low 450 Low 67 10 High 900 High 27 6 Milwaukee 4097 20 15 120 Low 500 Low 11 4 High 1000 High 5 The MK Manta I will operate in either a high or low gear speed This speed combined with applied pressure provides the cutting action for the core bit Speed selection and pressure are determined by hardness of material aggregate size and grade of diamond core bit Generally harder material and larger aggregates require more speed and pressure Use low speed for large diameter bits and high speed for small diameter bits Changing of the speeds is accomplished by using the
14. e M1 Vacuum MK p n 155753 158284 154543 154659 A5 Wheelt gt 0 O 157434 A6 Screw 1 2 1 3 4 Socket Head Shoulder 158390 Washer 2 SAE Flat 2 150924 A8 Foot Base Support 2 158389 Screw 3 8 16 x 2 Hex Head Cap 2 153529 A10 Washen38SAEFlat 2 150923 A11 Nut 3 8 16HexNylok 2 152505 Stud 12 13 x 4 Clamping 1 155124 A13 154613 A14 155125 Assembly M1 Base Anchor LI 1 AA1 2 Screw 72 13 x 3 Ye Hex Hd Cap Full Thread j WheelDia158x78 2 AA4 AA5 Screw 4 20 x 2 0 Socket Head Cap 2 158394 AA6 Foot Base Support 2 158389 Screw 3 8 16 x 2 4 Hex Head Cap 2 153529 AAS Washer 3 8 Flat 2 150923 AA9 Nut 3 8 16 Hex Nylok 2 152505 AA10 Label Manta Serial Tag shown LI 157730 AA11 155576 AA12 157914 D1 155757 D2 158348 D3 137711 D4 Plate Adjustment 3 157317 D5 Slide Carriage O 8 1738 D6 Screw 6 32 x 1 2 Flat Head Phillips Machine 8 154448 D7 Screw 6 32 x 3 8 Flat Head Philips Machine 8 157521 D8 Nut6 32NylokHex o 8 157519 D9 Knob Davies 14 20 x Washer SAE Flat Screw 1 4 20 X 34 Pan Head Phillips AC AI A2 Screw 72 13 x 3 Ye Hex Hd Cap Full Thread AS M A 1 2 4 5 2
15. g to smooth concrete slab and floor surfaces The powerful vacuum pump provides 25 PSI of holding power which equates to over 1800 pounds of force holding the Manta securely for safe accurate drilling The pump has a quick disconnect connector on the hose as well as an ergonomic handle to provide ease of transport The vacuum base also features leveling screws a cast in handle and six inch 6 wheels The water system for the Manta is a simple hose hook up and shut off valve that provides water under pressure to the diamond drill bit The water travels to the center of the bit through the water swivel and spindle to insure that water is supplied to the cutting end of the bit even in deep drilling operations Revision 03 05 Effective Date March 2 2005 MANTA I Unpacking Carefully cut through the carton approximately 6 inches from the bottom using a box cutter or other safety knife and lift away the top portion of the box Remove the Accessory Pack Vacuum Pump and Manta Core Drill Open the accessory pack and check each item with the contents list and illustration below making certain that all items are accounted for and in good condition before discarding any packing material If there are any missing or damaged parts call our toll free number 1 800 421 5830 for instructions before proceeding with the assembly CONTENTS Contents of the carton Manta including column carraige both bases and motor Vacuum Pump and Accessory Pac
16. ith safety messages A Electrical Shock Never touch electrical wires or components while the drill is running They can be sources of electrical shock which could cause severe injury or burns A Accidental Starts Before performing any maintence or service on this equipment always turn the switch off and unplug the drill from the power source to prevent accidental starting A Rotating Parts Keep hands feet hair and clothing away from all moving parts to prevent injury Other important messages that are designed to help prevent damage to your MK Diamond Manta Core Drill other property or the environment are preceded by the word notice RAIA Your MK Manta Core Drill or other property could be damaged if you don t follow instructions Safety labels contain important safety information Please read them carefully These labels are considered a permanent part of your drill If a label comes off or becomes hard to read contact MK Diamond or your dealer for replacement Revision 03 05 Effective Date March 2 2005 3 Manta I Core Drilling Machine Drill Features Motor Carraige Column and Base Vacuum Base and Pump Water System The MK Manta I Core Drill is a powerful all purpose drilling rig that is designed to drill holes up to 12 inches in diameter 14 inches with the 2 inch spacer in all types of concrete slabs floors walls and ceilings The Manta is designed for easy anchoring using
17. k In the Accessory Pack you will find Control box leveling screws 8 feed handle 1 and knobs 2 vacuum base gasket wrench Manta manual Manta warranty card motor manual and motor warranty card Leveling Screws Base Gasket i hin MANTA I MANTA I Revision 03 05 Effective Date March 2 2005 5 Assembly Main Assembly Feed Handle and Meter Box Vacuum Base Gasket Final Assembly AWARNING For your own safety and protection do not attempt to operate this drill until it is completely assembled and installed according to these instructions and until you understand the machines capabilities and the potential hazards associated with it Step 1 The Manta I is shipped with the main part of the Manta mounted backwards on the Vacuum base Remove the nut and bolt that hold the main assembly to the Vacuum base observing the following precaution Turn the Vacuum base around to the correct orientation slide the small base all the way back on the vacuum base and reinstall the nut and bolt CAUTION When removing the nut and bolt that holds the main assembly to the vacuum base the Manta will tip forward Be sure to hold the Manta when removing the vacuum base To set the Manta so that it will stand up loosen the carraige lock knob be sure to hold the carraige and move the carraige down to a position where the end of the motor spindle just touches the ground Step 2 Install the leveling scre
18. ket Hd Cap Optional Accessories Assembly 2 Spacer Block Milwaukee Spacer Block 2 Milwaukee Screw 3 8 16 x 3 4 Socket Hd Cap K1 K2 K3 K4 LA LA1 LB LB1 LD LD1 LE LE1 LF LJ1 MA MA1 MB1 MB2 MB3 MB4 H2 H3 H4 K KI LK K4 LA LAI LB LB1 LD LD1 LE LET LF JI M Mi M2 M3 MA MA2 MAS MB MB1 MB2 MB4 ERES Revision 03 05 Effective Date March 2 2005 21 HOW TO ORDER REPAIR PARTS PLEASE HAVE THE FOLLOWING INFORMATION READY BEFORE CALLING SERIAL NUMBER OF YOUR SAW MODEL NUMBER OF SAW WHERE PURCHASED AND WHEN PART NUMBER PART DESCRIPTION ALL PARTS LISTED MAY BE ORDERED FROM YOUR LOCAL DISTRIBUTOR OR FROM MK DIAMOND IF THE PART IS NOT STOCKED LOCALLY CALL OUR TOLL FREE NUMBER LISTED BELOW AND ASK FOR OUR CUSTOMER SERVICE DEPARTMENT FOR TECHNICAL SUPPORT CALL 1 800 474 5594 THERE IS A 25 00 MINIMUM ORDER RETURNED MERCHANDISE POLICY SHOULD YOU NEED TO RETURN ANY PRODUCT YOU HAVE PURCHASED FROM MK DIAMOND PLEASE OBSERVE THE FOLLOWING OUR CUSTOMER SERVICE DEPARTMENT SHOULD BE CONTACTED FOR APPROVAL TO RETURN MERCHANDISE MERCHANDISE WILL NOT BE ACCEPTED WITHOUT A RETURNED GOODS AUTHORIZATION NUMBER ALL RETURNED MERCHANDISE MUST BE SHIPPED PREPAID TO DESTINATION ALL RETURNED MERCHANDISE MUST HAVE BEEN PURCHASED WITHIN THE PREVIOUS 12
19. masonry anchors A secondary vacuum base is provided to facilitate quick and easy anchoring to smooth floor surfaces The Manta is designed for use with a variety of motors All motors are powerful two or three speed units that provide the correct cutting speed over a range of diamond drill sizes Some models utilizes a shear pin system for motor protection while some others utilize a slip clutch See the Drilling Speeds section of this manual The carraige column and base assembly of the Manta I Core Drill is the strong sturdy drilling platform that provides the rigidity needed to quickly drill accurately placed straight smooth holes in all types of concrete The Manta s base is slotted to provide easy anchoring of the drill in a variety of drilling situations with a single masonry anchor The slot also allows more than one hole to be drilled from a single anchor location The base contains four leveling screws to insure accurate hole alignment even on uneven concrete surfaces The base also has a cast in handle and a set of wheels to provide easy transport The carraige travel is controlled by a strong rack and pinion gear system that can be locked at any point on the column The slidding handle allows the operator to easily control the drilling pressure and speed At the top of the column is a strong jack screw that allows for additional bracing to overhead or opposite surfaces The vacuum base and pump provide quick and reliable mountin
20. n using the tool on ladders roofs scaffolds etc Maintain all tools with care for the safest and best performance Should any part of this drill become missing or damaged or any component fail to perform properly shut off the drill and unplug the power source Replace the missing damaged and or failed part before resuming operations Always keep alert Do not allow familiarity gained from frequent use to cause a careless mistake Always remember that a careless fraction of a second is sufficient to inflict serious injury Think Safety The operation of any power tool can result in foreign objects being thrown into the eyes causing severe damage Use safety goggles to comply with ANSI 287 1 FORESIGHT IS BETTER THAN NO SIGHT Revision 03 05 Effective Date March 2 2005 MANTA I MANTA I Safety Messages Hazard Symbols Damage Prevention Messages Safety Labels A safety message informs you about potential hazards that could hurt you or others Each safety message is preceded by one of the three words Danger Warning or Caution A DANGER You WILL be KILLED or SERIOUSLY injured if you don t follow instructions AWARNING You CAN be KILLED or SERIOUSLY injured if you don t follow instructions A CAUTION You CAN be injured if you don t follow instructions Additional information as to the nature of the hazard is provided by the following hazard symbols which appear throughout the manual in conjunction w
21. ob Note Grease the bit threads to help prevent the bit from seizing on the spindle due to rust 3 Select either high or low gear speed according to the chart in the Drilling Speeds section of this manual Do not shift speed when motor is on 4 Connect water hose to water swivel 5 Secure the rig as described in the Securing the rig section of this manual Revision 03 05 Effective Date March 2 2005 MANTA I MANTA I GI AWARNING If using the vacuum base do not continue operations unless the vacuum gauge reads more than 20 inches of mercury Normally the gauge will read 23 inches or more 6 Turn the motor switch on the Control box ON Turn the water ON so that an adequate flow of water is supplied through the water swivel to the bit Hold the handle and slightly loosen the carriage lock knob Slowly rotate the handle to lower the bit into the work piece apply steady even pressure Note To prevent the bit from wandering always use a light load to start the hole and wait for the diamond tip of the bit to penetrate the work surface before increasing the load 7 Use consistent pressure so that the bit cuts consistently Insufficient pressure will cause the diamond core bit to glaze over Too much pressure will overload the motor and crush the diamonds Use the ammeter on the Control box as a guide for proper pressure A CAUTION If the rig shifts during drilling stop the motor reposition the rig and resume drilling
22. r Extra shear pins are supplied or can be ordered from MK Diamond s Customer Service Tighten only enough to remove the play Do not over tighten Another model features a friction clutch rather than a shear pin to protect the motor and gears If the motor overloads the clutch will begin to slip and the bit will stop rotating The clutch is factory set and does not require adjustments However under normal use the clutch may start to slip at low torque If this happens refer to the motors Owner s Manual Bits with permanently attached adapters simply screw directly onto the threads of the drill spindle Ensure that the end of the bit butts up squarely against the shoulder on the spindle The MK Manta I has a 1 1 4 7 thread For bits with other threads use a shaft coupling After a bit has been mounted turn the power on and check that there is a minimum of run out or wobble A WARNING To reduce the risk of injury always unplug tool before attaching or removing accessories Only use specifically recommended accessories Others may be hazardous A WARNING When drilling through concrete floors the core will generally drop from the diamond bit Caution should be provided for people and property below the drilling area 1 Ensure that you have read and fully understand the complete operation of the MK Manta I you have purchased prior to commencing drilling operations 2 Select and install a diamond core bit appropriate for the j
23. s WARNING Never use flammable or combustible solvents around tools Through normal use the rubber gasket on the underside of the vacuum base can become worn requiring replacement Periodically check the gasket for wear If replacement is required clean the groove in the base before installing a new gasket Revision 03 05 Effective Date March 2 2005 MANTA I Troubleshooting When trouble occurs be sure to check the simple causes which at first may seem too obvious to be considered Refer to the table below for problems and their possible causes PROBLEM WHAT DO INDICATION CAUSE SOLUTION RECOMMENDATIONS 1 Check fluid return Drilling in steel reinforcement Fluid not muddy Evidence of steel cuttings Adjust drilling parameters to recommendations for reinforcement 2 Check motor Speed not correct for See recommended speed range the bit size used speeds Low Penetration Rate Under Prevailing Drilling Paramters 3 Check wear picture of bit face Heavy Wear at Steel Tube No return off Check where fluid is leaking MANTA Diamond without exposure flush with matrix Rotated with high RPM on reinforcement Loose material at bottom of hole Face of bit plugged with cuttings pumped Cuttings burnt to matrix Diamonds prevented from cutting Steel cuttings stick to bit face Diamonds prevented from cutting Face of bit covered with steel Steel cuttings stick
24. speed shift lever built into the gear case Change the gears only when the motor is off All building materials and work surfaces are composed of aggregate of various size Aggregates are materials such as gravel or crushed stone The size of the grains and the hardness of the material affects the speed of drilling Most building materials contain some type of steel reinforcements All MK bits are designed to cut through these types of reinforcing steel However bits should never be used for drilling solid steel plates Proper selection of the diamond core bit should be based on material to be drilled and performance requirements Drilling Pressure and the Ammeter Steady even pressure assures accurate holes and longer bit life Always maintain consistent pressure so that the bit is constantly cutting Too much pressure will damage the bit and motor Too little pressure will glaze over the diamonds reducing cutting efficiency and prematurely wearing the bit The ammeter is the gauge on the Control Box It provides pressure feedback information during drilling allowing the operator to help prevent motor overload and premature bit wear The green area is the operating range and the red area is the overload range Generally the operator should keep the ammeter needle in the upper area of the operating range for large diameter bits and in the lower green area for small diameter bits If the bit contacts steel reinforcing rods the needle on
25. te March 2 2005 Deep Drilling Maintenance 12 Cleaning Vacuum Base Gasket When drilling holes that are longer than the core bit follow the steps below 1 Begin drilling the hole as usual When you have drilled to the length of the bit retract the bit from the hole and turn off the motor and water as usual 2 Break off the core by driving a chisel or slender wedge into the circular kerf Remove the core using core tongs bent music wire or anchor bolts 3 After removing the core insert the bit carefully into the hole attach a bit extension to the bit and core drill rig then continue drilling as usual Periodic maintenance including cleaning lubrication and inspection for wear and damage are routine servicing procedures Following the procedures as outlined can prevent serious damage or malfunctioning of the machine and aid in preserving the useful life of core drill bits CAUTION Before performing any maintenance to the MK Manta I always unplug the unit from the electrical power source Be sure the On Off switches are in the Off position after servicing and before plugging the unit back in Clean the machine after use being careful to remove dust and slurry from the motor vents carraige and column Keep tool handles clean dry and free of oil and grease Use only mild soap and a damp cloth to clean this tool since certain cleaning agents and solvents are harmful to plastics and other insulated part
26. trical circuit separate from other loads and protected by a 30 amp circuit breaker The MK Manta I has been provided with a 20 Amp plug NEMA 15 20 or a 30 Amp NEMA 15 30 locking plug depending on the model MK Manta is marked Grounding Required and has a three wire cord and three prong grounding plug The plug must be connected to a properly grounded outlet see figure below If the tool should electrically malfunction or break down grounding provides a low resistance path to carry electricity away from the user reducing the risk of electrical shock The grounding prong in the plug is connected through the green wire inside the cord to the grounding system in the tool The green wire in the cord must be the only wire connected to the tool s grounding systems and must never be attached to an electrically live terminal Your tool must be plugged into an appropriate outlet properly installed and grounded in accordance with all codes and ordinances The plug and outlet should look like those in the figure to the left A WARNING Improperly connecting the grounding wire can result in the risk of electric shock Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded Do not modify the plug provided with the tool Never remove the grounding prong from the plug Do not use the tool if the cord or plug is damaged If damaged have it repaired by an authorized service facility before
27. use If the plug will not fit the outlet have a proper outlet installed by a qualified electrician The use of a circuit protected by a ground fault interrupter GFI is highly recommended Use extension cords of the proper cable size referring to the following chart Cord Length 25 feet 50 feet 75 feet Wire Size AWG 10 8 6 AWARNING Never use an extension cord smaller than shown in the chart Be sure your extension cord is properly wired and in good electrical condition Always replace a damaged extension cord or have it repaired by a qualified electrician before using it Protect your extension cords form sharp objects excessive heat and damp or wet areas Using an extension cord with inadequately sized wire causes a serious drop in voltage resulting in loss of power and possible tool damage Revision 03 05 Effective Date March 2 2005 Securing the Rig Recommended Methods A Use a concrete anchor Use either a 1 2 or 5 8 concrete anchor to secure the base to the work surface Always be sure to level the rig Using a concrete anchor insert a bolt through the slot located on the base and tighten the bolt firmly in the anchor AWARNING It is essential to always secure the rig to the work surface to help prevent personal injury and also to protect the rig An unsecured rig could rotate during drilling and possibly cause injury It could also cause the bit to chatter against the work surface or bind in a hole which can
28. ws 8 screwing four 4 into each base Step 3 Install the feed handles 1 and knobs 2 by screwing one knob onto the end of the handle then slip thru hub and attach other knob Step 4 Remove the Manta from the vacuum base by removing the nut and bolt that holds the main assembly to the vacuum base Set the Manta aside observing the following precaution Turn the vacuum base over Press the gasket into the groove in the underside of the base The gasket is cut at the factory to the correct length so that the two ends will butt together once the gasket is installed Step 5 Assemble the two pieces of the water valve and install the valve into the water swivel on the motor just above the spindle see motor literature Plug the cord from the motor into the upper outlet on the meter box the one opposite the motor on off switch The other outlet on the meter box is for the vacuum pump Revision 03 05 Effective Date March 2 2005 MANTA I Drilling Operations Electrical Requirements Grounding NEMA L5 20 125 V 20 Amp Locking Plug and receptacle Grounding blade Cover of grounded outlet box NEMA L5 30 125 V 30 Amp Locking Plug and receptacle Grounding blade Cover of grounded outlet box Extension Cords MANTA I The MK Manta I Core Drill rig has been equipped with either a 20 Amp 115V 3 speed motor a 20 Amp 120V 2 speed motor or a 15 Amp 115V 2 speed motor The drill should be used on an elec
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