FLOOR GRINDING & SURFACE PREPARATION
Contents
1. 32 dependent on depth of removal coat ings speed of operation matrix etc Extra weight can be added to the grinder to increase production Choose the DYMA SERT to fit your job EG 1X General purpose matrix for fast grinding of con crete thin mastics paints or urethane and epoxy thin coats EG 2X Use on abrasive material Matrix is designed harder for concrete less than 72 hours old brick or abrasive sands Grinding will be slower and tool life will be longer EG 3X_ Hardest matrix for use on rough surfaces such as epoxy mortars or sharp aggregates flint granite etc NOTE Dyma Serts for use on terrazzo are available call EDCO for additional information Grinding Stones Grinding Stones are generally used when there is a need to remove trowel marks rain spots excess concrete rough finishes or high spots less than 1 16 2mm in height A variety of grit sizes are available beginning with a super course C 10 S to very fine polishing types C 80 and C 120 used to grind terrazzo and marble The EDCO grinder will remove up to 1 16 2mm of concrete at the rate of approx imately 500 sq ft hr 46 sq m hr using grinding stones of the C 10 S grit Extra weight can be added to the grinder to improve the grinding speed The hardness of the surface size of aggregate age of slab or additives and sealers re quired to meet surface specifications will affect the grinding speed and rate of removal Industrial Surf2. O CONTR Systems Fax 301 663 1607 1 800 447 3326 Website www contrxsystems com Email sales contrxsystems com A Division of Equipment Development Company Inc Read and follow all instructions in the Engine Manufacturer s Printed in USA tw 2012 Page 15 E SEC 2EC 2GC P 4GC I 0512 LIMITED EQUIPMENT WARRANTY OF SALE TERMS amp CONDITIONS Equipment Development Company Inc herein referred to as EDCO Seller warrants that each new unit manufactured by EDCO to be free from defects in material and workmanship in normal use and service for a period of 1 one year except for the cutter drum assembly on all model concrete asphalt planes in which case the warranty period shall be 90 days from date of shipment to the original retail or equipment rental center owner Accessories or equipment furnished and installed on the product by EDCO but manufactured by others including but not limited to engines motors electrical components transmissions etc shall carry the accessory manufacturers own warranty EDCO will at its option repair or replace at the EDCO factory or at a point designated by EDCO any part which shall appear to the satisfaction of EDCO inspection to have been defective in material or workmanship EDCO reserves the right to modify alter and improve any part or parts without incurring any obligation to replace any part or parts previously sold without such modified altered or improved part or parts T
3. contained in these terms and conditions governmental regulations or actions strikes damage to or destruction in whole or part of manufacturing plant riots terrorist attacks or incidents civil commotions warlike conditions flood tidal waves typhoon hurricane earthquake lightning explosion or any other causes contingencies or circumstances within or without the United States not subject to the Seller s control which prevent or hinder the manufacture or delivery of the Products or make the fulfillment of these terms and conditions impracticable In the event of the occurrence of any of the foregoing at the option of Seller Seller shall be excused from the performance under these Terms and Conditions or the performance of the Seller shall be correspondingly extended This document sets forth the terms and conditions pursuant to which the purchaser Pur chaser will purchase and Equipment Development Co Inc Seller will sell the products accessories attachments collectively the Products ordered by the Purchaser These terms and conditions shall govern and apply to the sale of Seller s Products to Purchaser regardless of any terms and conditions appearing on any purchase order or other forms submitted by Purchaser to Seller or the inconsistency of any terms therein and herein 1 PRICE All prices set forth on any purchase order or other document are F O B Sellers facility or distribu tion point as may be dete
4. instructions before operating this equipment Death or serious injury can result if this machine is used improperly e Concrete grinders are designed to be used to grind flat horizontal concrete slabs using EDCO approved accessories The machines are equipped with gasoline propane engines and electric motors They are designed to be controlled by a single operator from a position at the rear of the machine When operating equipment maintain a safe distance from other personnel in the area Be sure to read the complete instructions supplied with your machine IMPORTANT Perform Pre Start Check Visually inspect the equipment for wear or damage Be sure all guards are in place and functioning properly Do not operate unless all guards are in place and secure Perform all daily maintenance Check to be sure water tubes are functioning properly if performing wet grinding operations Inspect accessories Be sure the correct accessory is installed properly on the machine mounting arrangement and its intended use Check accessories for damage see figure 6 below the type of wear or damage will vary with the type if acces sory Inspect work area to determine the presence and location of deck inserts pipes columns and objects protruding from the slab surface so that they may be avoided during the grinding operation FOR WET GRINDING Attach the water supply A flow rate of approximately 1 2 gallon per minute is recommend ed EXAMPLE OF SE
5. to the grinding disc Slipping belts will overheat the disc life will be shortened and the cutting speed limited Over tensioned belts will shorten the belt and bearing life 7 Before operation check Grinding Discs to be sure they are tight Grinding discs can loosen with use Tighten bolts 6 on each disc as required 8 Before operation check Neoprene bushing for wear and replace as necessary On oe and propane models inspect spark plugs Clean if dirty replace if the electrodes are burned Gap plugs at 020 For Propane Models use a mild detergent motor oil that will not leave ash deposits Gas engine oils are avail able from major petroleum companies These gas engine oils are specifically blended for long life on LP Gas or natural gas engine operation which will not carbon up the combustion chamber or shorten valve life Premium oils should not be used in LP Gas or natural gas engines as the metallic detergents will damage the engine valves Gear Case A refer to figure on page 13 The gear case of your EDCO grinder has been pre lubricated at the factory with approximately 3 pounds of lu briplate No 630 2 grease We recommend it s continued use Each grinder has an inspection hole in the gear case top plate to enable you to check the amount of grease in the case Remove this cover with the end of a screwdriver if grease is visible do not add any If you cannot see the grease add a small amount 1 pou
6. 2 tw Website www conirxsystems com Page 8 Email sales contrxsystems com Printed in USA CON Systems A Division of Equipment Development Company Inc E SEC 2EC 2GC P 4GC I 0512 PROCEDURE FOR INSTALLING AND REMOVING ACCESSORIES Place wooden block against this surface and tap with hammer or mallet to remove accessory is rotated 180 Not the DYMA SERT case DYMA SERT DYMA SERT To install an accessory there are several different types but all install in the same manner use a brass rod or similar mal able material to drive the wooden wedge into place as shown in the above and below illustrations note on which side of the accessory the wooden wedge is positioned near center of disc Never mix worn or used accessories with new ones lt will cause vibration and an uneven work surface Replace accessories in complete sets never mix sets Place wooden block against this surface of the Strip Sert and tap with hammer or mallet to remove MULTI DIS RH Multi disc STRIP SERT a ail To remove an accessory there are several different types all are removed in the same manner use a wooden block as explained in the above illustration Never hammer directly on any accessory damage to the self adjusting system will result and the accessory will have to be replaced NOTE THE ABOVE ILLUSTRATIONS ARE VIEWING THE MACHINE FROM THE FRONT BOTTOM NOTE THE DIRECTION OF ROTATION AND MULTI DISC STYLE IF DISCS ARE REPLA
7. CED AND INSERTS FALL OUT WHEN BEING USED THE DISCS HAVE BEEN INSTALLED INCORRECTLY 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 Fax 301 663 1607 1 800 447 3326 PEA IN URA Website www contrxsystems com tw 2012 Email sales contrxsystems com Page 9 E SEC 2EC 2GC P 4GC I 0512 INSTRUCTIONS FOR CHANGING ACCESSORIES 1 Disconnect the machine from the power source before performing any work on the equipment To disconnect the power source remove the spark plug lead on gasoline and propane models or unplug the electrical models at the grinder 2 Tip Grinder back on the handle until handle remains on contact with the slab NOTE FOR GASOLINE MODELS TAKE CARE THAT GASOLINE OR OIL DOES NOT SPILL FROM THE ENGINE Turn gasoline cutoff valve off Brace securely or have someone hold the handle against the slab The grinding discs will be visible and accessable for inspec tion and installation of accessory items 3 Installing Multi disc assemblies for use with scarafiers silabide pads wire brushes and Dyma Serts The multi discs are designed as lefthand LH or righthand RH depending on the direction of rotation the LH is on the left side clockwise and RH is on the right side counter clockwise as viewed from the bottom side of the machine The single disc grinders use the RH disc NOTE Multi Discs come standard with the EDCO grinders in this manual The multi disc assemb
8. Consult the engine manufac turers operating instructions and follow the directions for starting and breaking in the engine TO STOP THE MACHINE Stop forward motion On gasoline models push the throttle to idle Turn ignition or power switch off and let the engine come to a complete stop Turn off the water supply WHEN MANEUVERING THE GRINDER Tilt grinder back enough so it does not strike the slab surface Damage to accessories may occur with inadvertent contact with the slab DO NOT FORCE GRINDER WHILE GRINDING IF THE POWER SOURCE FAILS Raise the grinder off of the floor Disconnect the power source i e the spark plug wire on a gasoline engine Inspect the accessories for damage Replace damaged or questionable accessories immediately WHEN TRANSPORTING THE GRINDER Disconnect the power source before lifting or removing any guard See the directions for changing accessories on page 9 WHEN HOISTING OR LIFTING A GRINDER Always inspect frame and attaching hardware for damage before lifting Use proper safe hoisting and lifting techniques and hardware SMI Dust and Silica Warning Grinding cutting drilling of masonry concrete metal and other materials can generate dust mists and fumes containing chemicals known to cause serious or fatal injury or illness such as respiratory disease cancer birth defects or other reproductive harm If you are unfamiliar with the risks associated with the particular process and or material being c
9. E SEC 2EC 2GC P 4GC 1 0512 Operator s Instruction Manual FLOOR GRINDING amp SURFACE PREPARATION Gasoline Electric e Propane 2EC 2GC 2GC P 4EC 4GC 4GC P Manual Portable 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 SV SCCMAIS Fax 301 663 1607 1 800 447 3326 PADIERNA USA Website www contrxsystems com tw 2012 Email sales contrxsystems com A Division of Equipment Development Company Inc E SEC 2EC 2GC P 4GC I 0512 READ AND UNDERSTAND THE OPERATORS INSTRUCTION MANUAL THOROUGHLY A SAFETY MESSAGES e Safety Instructions are proceeded by a graphic alert symbol of DANGER WARNING or CAUTION i Indicates an imminent hazard which if not DANGER J avoided will result in death or serious injury Indicates an imminent hazard which if not avoided can result in death or serious injury dl Indicates hazards which if not avoided could result in serious injury and or damage to the CAUTION equipment GASOLINE PROPANE POWERED EQUIPMENT e Engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproduc tive harm e Gasoline is extremely flammable and poisonous It should only be dispensed in well ventilated areas and with a cool engine Small gasoline engines produce high concentra tions of carbon monoxide CO example a 5 HP 4 cycle engine operation in an en
10. VERELY WORN EXAMPLE OF AN EVENLY WORN DYMA SERT DYMA SERT he above in an example of a DYMA SERT that has The above in an example of a DYMA SERT that has ot been rotated after every four hours of use To get been rotated after every four hours of use as you aximum life out of a DYMA SERT they should be can see the wear is even across all segments otated 180 every four hours of use Printed in 2012 tww Page 6 Email sales contrxsystems com Figure 6 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 Fax 301 663 1607 1 800 447 3326 Website www contrxsystems com USA p m CONTR Systems A Division of Equipment Development Company Inc E SEC 2EC 2GC P 4GC I 0512 Operating Instructions BEFORE STARTING THE ENGINE Raise the front of the machine clear of the working surface START ENGINE AND ALLOW IT TO REACH OPERATING SPEED Position the grinder at the starting point Bring the engine to full soeed Lower the machine onto the slab surface Use a slow sweeping motion from left right and back continously and do not force the machine into the work the engine or motor should not strain when grinding WHEN WET GRINDING Water is required Attach the water hose to the water hook up valve Use the valve to control the flow of water FOR DRY GRINDING Provide a respirator and dust control system FOR GASOLINE MODELS Put the engine stop switch in the RUN position
11. acer Discs Industrial Surfacer Discs with replaceable hi carbon steel cutters can be used in place of the multi accessory discs to create a simple high speed cleaning system and save hours 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 Fax 301 663 1607 1 800 447 3326 Website www contrxsystems com Email sales contrxsystems com Printed in USA 2012 tvw Page 12 of hard work intensive labor when hardened deposits of material such as fiberglass ice sugar rubber etc have to be removed from factory floors Cutter wheels are easily changed and may be space to fit your particular job Ideal for use in foundries sugar refiner ies walk in freezers mobile home and recreational vehicle manufacturers rubber tire hose belt plants paint booths boat tub shower manufacturers steel mills or fabricating plants Silabide Pads Silabide Pads are special nylon mesh pads impregnated with silicon carbide grit designed for super scrubbing ac tion Use to remove fins or marks on gyp crete or other underlayment materials Remove mildew rust or discolor ations from concrete clean concrete forms and strip scale and rust from slab steel plate surfaces Silabide pads can be used with detergents or dry and are attached to the EDCO Grinder with a pad driver assembly Scarifiers used with multi discs Scarifiers are used to grind slab surfaces The action is faster than with grin
12. and on off valve Dust Skirt aa Figure 3 Propane Powered 4GC Vibration Dampening Handles Muffler Propane SS Tank Ng 4 c a Dust Skirt Sm ee pe Am Depth a Control Starter NOTE Operating controls are the same for the gasoline and propane models Figure 5 A Division of Equipment Development Company Inc E SEC 2EC 2GC P 4GC I 0512 Propane System Propane Tank p ae 20 Ib horizontal Red Arrow eR m m Pointing Up gt le Tank Bottom 1 Main Power Ee we Adjustment Vapor Hose Low Pressure High Pressure LP Hose 2 Idle Mixture Vacuum Screw Dry Gas Regulator High Pressure LP Hose Propane Tank P N 5130 Horizontal Mount Vapor Withdrawal Main Fuel Valve F A A ns i NOTE The Red arrow a N i 4 on thetank will be point Propane Tank ing up The locating 20 Ib horizonta BE hole is oriented under the gauge as viewed in the photo on the left Locating Hole ai B f P z l i O D A c Fuel Gauge 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 E DI m CONTR Systems Fax 301 663 1607 1 800 447 3326 PAMERIN TSA a Website www contrxsystems com tw 2012 A Division of Equipment Development Company Inc I Email sales contrxsystems com Page 5 E SEC 2EC 2GC P 4GC 1 0512 Operating Instructions anne e Read and understand all operating
13. cial use only For the operator s safety and the safety of others always keep all guards in place during operation Never let equipment run unattended QGOOVOO OO Personal Protection Equipment and proper safety attire must be worn when operating this machinery The operator must wear approved safety equipment appropriate for the job such as hard hat and safety shoes when conditions require Hear ing protection MUST be used operational noise levels of this equipment may exceed 90db Eye protection MUST be worn at all times Keep body parts and loose clothing away from moving parts Failure to do so could result in dismemberment e Do not modify the machine or death e Stop motor engine when adjusting or servicing this equipment A Maintain a safe operating distance from flammable materials Sparks from the cutting action of this machine can ignite flammable materials or vapors Some dust created by power sanding sawing grinding drilling and other construction activi ties contains chemicals known to cause cancer DUST WARNING birth defects or other reproductive harm Some examples of these chemicals are e Lead from lead based paints and e Crystalline silica from bricks and concrete and other masonry products Your risk of exposure to these chemicals varies depending on how often you do this type of work To reduce your risk work in a well ventilated area use a dust control system such as an industria
14. closed 100 000 cu ft area with only one change of air per hour is capable of providing deadly concentrations of CO in less than fifteen minutes Five changes of air in the same area will produce noxious fumes in less than 30 minutes Gasoline or propane pow ered equipment should not be used in enclosed or partially enclosed areas Symptoms of CO poisoning include head ache nausea weakness dizziness visual problems and loss of consciousness If symptoms occur get into fresh air and seek medical attention immediately x ELECTRICAL POWERED EQUIPMENT Extreme care must be taken when operating electric models with water present Ensure power cord is prop erly grounded is attached to a Ground Fault Interrupter GFI outlet and is undamaged Check all electrical cables be sure connections are tight and cable is continuous and in good condition Be sure cable is correctly rated for both the operating current and voltage of this equipment Improper connection of the equipment grounding conductor can result in a risk of electric shock Check with qualified electri cian or service person if there is any doubt as to whether the outlet is properly grounded Adhere to all local codes and ordinances NOTE In the event of a malfunction or breakdown grounding provides a path of least resistance for the electric current to dissipate The motor is equipped with a grounded plug and must be connected to an outlet that is properly ins
15. d flat against the casting Insert capscrew with flat washer through hole in Pad Driver Disc and thread into Hub Stud Tighten securly Follow these instructions for each disc assembly refer to figure above Install Silabide Pads by pushing the pad against the bristles The pad should stay on the disc and the surfacer can then be lowered to its normal position When using the surfacer as a scrubber try not to lift the surfacer from the slab except to remove or change pads If the pad comes loose from the disc stop the surfacer and repeat Pad installation from the above procedure disconnect the power source 100 Thomas Johnson Drive Frederick MD 21702 4600 USA CONTR Systems Phone 301 663 1600 1 800 638 3326 Fax 801 663 1607 1 800 447 3326 Website www contrxsystems com Email sales contrxsystems com Printed in USA tw 2012 Page 11 E SEC 2EC 2GC P 4GC I 0512 GRINDER SURFACER ACCESSORIES for the models listed in this manual Dyma Serts Patented DYMA SERTS are diamond segments welded to snap in plates for faster controlled dry grinding and are ideal for removing trowel marks rough finish rain spots large volume projects paints thin mastics epoxy and urethane coatings or polymer enhanced surfaces DYMA SERTS can be used wet or dry and will outperform stones by grinding many times faster removing tough materials and lasting many times longer up to 30 000 sq ft 2 800 sq meters life at 1
16. ding stones leaving a rough sandpaper finish that may be desirable for non slip floors ceramic tile installation or epoxy mortars The action of the steel cutter wheels is to pick away the concrete from around the aggregates The cutter will not grind the aggregate consequently the aggregate will remain exposed and above the surface of the slab In some instances the aggregate will loosen or split and break away from the concrete bond This condition can be controlled and is useful when an exposed aggregate surface is re quired If the desired end result is a smooth flat surface use scar ifiers first for fast surface removal then change to coarse grit C 10 S grinding stones to bring the high aggregate to the level of the slab EDCO offers two 2 models of scarifiers The standard small cutter wheel assembly has sharp carbon steel cutters suitable for all scarifying applications Life of this assembly is from 3 to 6 hours depending on the surface material The heavy duty cutter assembly has an anticipated life from 8 to 20 hours Action is basically the same as the standard units except cutting life is extended Use it where changing cutter assemblies often is not convenient E SEC 2EC 2GC P 4GC I 0512 PROCEDURE FOR LUBRICATING FLANGE BEARINGS Inspection u i hole E Inspection The procedure is the same for two or four disc machines The hood has to be removed to access the grease points on the flange beari
17. ent Company Inc j CONTR Systems Back Page Figure 1 EE re ae ee e ee E N 2GC EC 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 Fax 301 663 1607 1 800 447 3326 Website www contrxsystems com Email sales contrxsystems com Printed in USA tw 2012 Page 3 E SEC 2EC 2GC P 4GC 1 0512 Operating Controls Please Note Controls shown are for the model indicated The location of these controls may vary on the different models Due to improvements and changes in the equipment the illustration shown may vary from the actual machine Electric Powered SEC Power On Off w Switch Multi Vac x AN SI he Port s Bail Vibration Dampening Handles Accessory Box ater Hook up and on off valve pack of machine x Soe lectric Motor Figure 2 Gasoline Powered Engine Stop Switch 2GC Cushioned SS vor hand grips Throttle Water Hook up Multi Vac and on off valve Choke a Control hidden Starter Grip Dust Skit NOTE Operating controls are the same for the gasoline and propane models Figure 4 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 Fax 301 663 1607 1 800 447 3326 Website www contrxsystems com Email sales contrxsystems com Printed in USA 2012 tww Page 4 Electric Powered Vibration 2EC Dampening Handles Water Hook up
18. follow the respiratory precautions mentioned above 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 Printed in USA Fax 301 663 1607 1 800 447 3326 Website www contrxsystems com tww 2012 Email sales contrxsystems com Page 7 E SEC 2EC 2GC P 4GC I 0512 PROCEDURE FOR ADJUSTING OR REPLACING DRIVE BELT NOTE The following applies to all machines They all adjust in the same manner To adjust the drive belt loosen four 4 cap screws securing the motor mount to the frame Slide the motor mount to the rear of the machine to increase belt 4 tension Tighten the four 4 cap screws loosened earlier maintaining pressure on the motor mount to prevent loosening a replace the belt remove the hood by removing two 2 cap screws one on each side of the machine Loosen the four 4 cap screws as in the first step and slide the _ ae motor mount all the way forward La Remove the belt from the motor and pinion shaft sheaves as shown in the photo on the left Reverse the previous step to install new belt Slide motor mount towards the rear of the machine and adjust belt tension tighten all four 4 cap screws as explained above Replace hood and tighten bolts New belts should be retensioned after grinder has been used for 4 hours 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 Fax 301 663 1607 1 800 447 3326 201
19. hese terms and conditions Any additional terms conditions and or prices are rejected by Seller These terms and conditions may be modified cancelled or rescinded only by a written agreement of both parties executed by their duly authorized agents USE ONLY GENUINE EDCO PARTS amp ACCESSORIES For your own safety the safety of others and the life of your machine Equipment Development Company Inc Phone 301 663 1600 1 800 638 3326 Fax 301 663 1607 1 800 447 3326 Website www contrxsystems com Email sales contrxsystems com Printed in USA 2012 tww Page 16 CON Systems A Division of Equipment Development Company Inc
20. his warranty is in lieu of and excludes all other warranties expressed implied statutory or otherwise created under applicable law including but not limited to the warranty of merchant ability and the warranty of fitness for a particular purpose in no event shall seller or the manu facturer of the product be liable for special incidental or consequential damages including loss of profits whether or not caused by or resulting from the negligence of seller and or the manufacturer of the product unless specifically provided herein In addition this warranty shall not apply to any products or portions there of which have been subjected to abuse misuse improper installation maintenance or operation electrical failure or abnormal conditions and to products which have been tampered with altered modified repaired reworked by anyone not approved by seller or used in any manner inconsistent with the provisions of the above or any instructions or specifications provided with or for the product FORCE MAJEURE Seller s obligation hereunder are subject to and Seller shall not be held responsible for any delay or failure to make delivery of all or any part of the Product due to labor difficulties fires casualties accidents acts of the elements acts of God transportation difficulties delays by acommon carrier inability to obtain Product materials or components or qualified labor sufficient to timely perform part of or all of the obligations
21. i disc Assembly 3 8 dia x 2 Long Roll Pin D m OO Systems A Division of Equipment Development Company Inc THREE TYPES OF ACCESSORIES Use a hex wrench to remove hex screw to allow rotation of blade This is aSTRIP SERT rotate this blade to expose a new cutting surface There are four 4 cutting surfaces on each blade Accessory case This is a DYMA SERT rotate the DYMA SERT only not the case Spring loaded slot This is a Scarifier and does not require rota tion A Division of Equipment Development Company Inc E SEC 2EC 2GC P 4GC 0512 SILABIDE PAD INSTALLATION MULTI DISC Roll Pin aee Threaded Hub Non Spin Tab 3 Pad Driver Disc l Flat Washer Cap Screw D Silabide Pad Exploded view of Silabide Pad assembly Installing Silabide Pads install Hub Stud one in each threaded hub this is a permanent installation and the stud need not be removed when using the surfacer as a grinder or scarafier Be sure that the end of the stud when fully threaded CAUTION into hub does not project past web of multi disc as sembly Your surfacer is now ready to receive the PAD DRIVER DISC anytime the need arises To install Pad Driver Disc Position PAD DRIVER DISC against the web of the multi disc be sure non spin tabs are in place see illustration in the center casting web to prevent disc from turning loose Be sure Pad Driver Disc is positione
22. l shall be held at the Purchaser s premises until authorization has been granted by Seller to return or dispose of Products Products that are to be returned for final inspection must be returned Freight Prepaid in the most economical way Credit will be issued for material found to be defective upon Seller s inspection based on prices at time of purchase 6 PRODUCTS ORDERED IN ERROR Products may be returned provided that claim is made and Seller is notified within 7 days of receipt of Products and the Products are in original buyer s possession not more than 30 days prior to return subject to Seller s approval If Products are accepted for return they must be Freight Prepaid and buyer will be charged a minimum of 15 restocking charge plus a charge back for outbound freight charges if the original order was shipped prepaid Returns are not accepted for any Products that are specifically manufactured to meet the buyer s requirement of either specifications or quantity AGREEMENTS These Terms and Conditions constitute the entire agreement between Seller and Purchaser as it relates to terms and conditions of sale and supersedes any and all prior oral or written agreements correspondence quotations or understandings heretofore in force between the parties relating to the subject matter hereof There are no agreements between Seller and Purchaser with respect to the Product herein except those specifically set forth in and made part of t
23. l style vacuum and wear approved personal safety equipment such as a dust particle respirator designed to filter out microscopic particles CON Systems A Division of Equipment Development Company Inc E SEC 2EC 2GC P 4GC I 0512 SPECIFICATIONS Table of Contents section Safety Warnings Specifications Table of Contents Operating Controls Operating Instructions SMI Dust and Silica Warning Page Number Procedure for adjusting or replacing drive belts Procedure for installing and removing accessories Instructions for changing accessories Three types of accessories Silabide pad information Grinder Surfacer accessories Lubricating flange bearings Attaching a vacuum Maintenance Instructions Maintenance Schedule Limited Equipment Warranty Note All dimensions and weights are for reference only and subject to change at any time 2GC Shown HOW TO ORDER REPAIR PARTS To insure product safety and reliability always use genuine EDCO replacement parts when making repairs to the equip ment When ordering parts please specify the MODEL and SERIAL NUMBER of the machine as given on the NAMEPLATE In addition give part number description and quantity as listed on the parts list Please note Due to improvements and changes in the equip ment the illustrations shown may be different from the actual machine Toll Free Phone 1 800 638 3326 Fax 1 800 447 3326 A Division of Equipment Developm
24. lies use a 3 8 dia x 2 long roll pin to attach them to the shaft s under the grinder refer to page 11 4 When installing the surfacer disc assemblies instead of the Multi disc assemblies refer to figure 7 The discs are triangular and must be allowed to pass each other without colliding 5 Installing grinding stones Grinding stones are used on the multi disc assembly A total of 3 stones are used with each multi disc and are held in place with a hardwood wedge The wedges are placed on the inside of the stone refer to page 10 Use a second wedge and hammer or mallet to drive the wedge securely ito place 6 Installing wire brushes The steel wire brushes are used on the multi disc assembly 3 per multi disc They are held in place with a hardwood wedge driven in on the inside of the brush toward the center of the disc refer to the previous page All accessories are held in place in the same manner 7 Installing Scarifiers The scarifier assemblies consist of disposable scarifiers and a reusable scarifier case The case is held into the multi disc assembly with a hardwood wedge driven in on the inside of the case toward the center of the disc refer to the previous page All inserts are held in place in the same manner 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 Fax 301 663 1607 1 800 447 3326 Website www contrxsystems com Email sales contrxsystems com Prin
25. nd is usually more than enough Do not overfill The grease in the gear case should last from three to five years before there is any need to refill or add Note Model SEC is not gear driven so this does not apply Bearings B refer to figure on page 13 Each grinder has bearings on top and bottom of the machine All bearings are self aligning sealed units equipped with grease fittings These bearings should be lubricated every 50 hours of operation with Lubriplate No 630 2 or other good bearing grease DO NOT over lubricate An occasional drop or two of oil on the wheel bearings will help prevent binding 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Printed in USA Phone 301 663 1600 1 800 638 3326 Fax 301 663 1607 1 800 447 3326 2012 tw Website www conirxsystems com Page 14 Email sales contrxsystems com E SEC 2EC 2GC P 4GC I 0512 Repairs are to be performed by approved EDCO repair technicians Owner s manual Maintenance Schedule Before Operation Every 4 Hours Every 50 Hours of Operation As Required o e 1X Entire Machine Check Engine Oil Xf fof ee O refer to Engine manual Clean Air Filter Element ff KE ert TT XT Oo BERBER Inspect Grinding Discs Xi fo O DERREN a O O O X Clean Dust amp Dirt X Off machine Gasoline and Propane Models only 100 Thomas Johnson Drive Frederick MD 21702 4600 USA n Phone 301 663 1600 1 800 638 3326 E B g
26. ngs The single disc grinder is lubricated through the access hole on the front of the machine and under the belt cover The grease points are circled in the photos above There are duplicate grease fittings on the underside of the 2EC 2GC and the 4GC models The skirts will have to be removed to access the grease points To grease the flange bearings attach the grease gun to the grease fittings and give only two 2 pumps on the grease gun every 50 hours of use If excessive over lubrication is done grease will leak onto the work surface causing possible dam age and wasted cleanup time PROCEDURE FOR ATTACHING A VACUUM Multi Vac D ji vpe 1 E i A 1 Tai YA Port L oc if se hidden A TX v Multi Vac Port SEC 2GC 4GC If using a vacuum for dust control attach it to the vacuum port at the rear of the machine except for the SEC and 4GC which is on the handle as pictured above securing it with clamps The ports are shown in the photos above 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 CONTR Systems Fax 301 663 1607 1 800 447 3326 Printed in USA Website www contrxsystems com tww 2012 Email sales contrxsystems com Page 13 A Division of Equipment Development Company Inc E SEC 2EC 2GC P 4GC I 0512 MAINTENANCE INSTRUCTIONS y 1 Disconnect the machine from the power source Remove the spark plug lead on the propane and gasoline engine models or di
27. rmined by Seller F O B Point All prices are exclusive of any and all taxes including but not limited to excise sales use property or transportation taxes related to the sale or use of the Products now or hereafter imposed together with all penalties and expenses Purchaser shall be responsible for collecting and or paying any and all such taxes whether or not they are stated in any invoice for the Products Unless otherwise specified herein all prices are exclusive of inland transportation freight insurance and other costs and expenses relating to the shipment of the Products from the F O B point to Purchaser s facility Any prepayment by Seller of freight insurance and other costs shall be for the account of Purchaser and shall be repaid to Seller 100 Thomas Johnson Drive Frederick MD 21702 4600 USA 2 PAYMENT TERMS Payment terms are as follows 2 10 days to approved and qualified accounts Net 30 days This is a cash discount for invoices paid within 10 days after the invoice date regardless of date of receipt of shipment This is not a trade discount and will not be granted to accounts that do not adhere to stated terms All past due accounts are subject to a late payment fee of 1 5 per month or a maximum allowed by law if different along with the expenses incidental to collection including reason able attorney s fees and costs Seller reserves the right to hold shipments against past due accounts Seller reser
28. sconnect the supply voltage connector at the machine on electric models before performing any maintenance All maintenance to be performed by qualified personnel 2 Never work under equipment without first properly securing the equipment to prevent it from moving or falling Always work on a flat and level surface 3 For Propane and Gasoline Models refer to the engine manual for maintenance information specific to the engine being used Be sure to check oil level before each operation while engine is cold Clean air filter element daily 4 Grease bearings after every 50 hours of use Refer to page 13 for lubrication points 5 Perform a visual inspection of the entire machine before each operation Be sure all fasteners are tight and secure check for signs of metal cracking or fatigue inspect for damage to electrical wiring damage to fuel lines check bearings and inspect to be sure proper guards are in place and secure 6 Inspect belts before each operation Check belt tension On new equipment belts should be re tensioned after the first few hours of use Damaged stretched or excessively worn belts should be replaced with a new matched set for maximum power transfer To tension belts loosen engine motor mounting hardware slightly Adjust the engine motor position until the belts are tight Re torque the engine motor mounting hardware refer to page 8 Proper belt tension must be maintained to transmit the engine motor power
29. talled and properly grounded DO NOT modify the plug provided on the motor If the plug does not fit the outlet have a qualified electri cian install the proper receptacle e Switch motor OFF before disconnecting power gt 100 Thomas Johnson Drive Frederick MD 21702 4600 USA Phone 301 663 1600 1 800 638 3326 Fax 301 663 1607 1 800 447 3326 Website www contrxsystems com Email sales contrxsystems com Printed in USA 2012 tww Page 2 BEFORE ATTEMPTING TO OPERATE THIS EQUIPMENT Death or serious injury could occur if this machine is used improperly AN e Do not disconnect power by pulling cord To disconnect grasp the plug not the cord e Unplug power cord at the machine when not in use and before servicing GENERAL INSTRUCTIONS Equipment should only be operated by trained personnel in good physical condition and mental health not fatigued The operator and maintenance personnel must be physically able to handle the bulk weight and power of this equipment This is a one person tool Maintain a safe operating distance to other personnel It is the operators responsibility to keep other people workers pedestrians bystanders etc away during operation Block off the work area in all directions with roping safety netting etc fora safe distance Failure to do so may result in others being injured by flying debris or exposing them to harmful dust and noise This equipment is intended for commer
30. ted in USA 2012 tww Page 10 The scarifiers can be added or removed from the case without disturbing the case One end of the scarifier is short and has a tab The tab is simply inserted under the lip of the case and the other end is pressed into the spring loaded slot and seated firmly Refer to diagram on page 11 To remove the scarifier from the case simply pry the rounded end of the frame out of the spring loaded slot Installing Dyma Serts The Dyma Sert assembly consists of a disposable Dyma Sert cutter a shock absorbing rubber block and a reusable Dyma Sert case Three Dyma Sert assemblies are used on each multi disc The case is held on the multi disc assembly by using a hardwood wedges driven in on the inside of the case Refer to diagram on page 11 The Dyma Serts can be added added or removed from the reusable case One end of the Dyma Sert has a lip The lip is Simply inserted under the lip of the case and the other end is pressed into the spring loaded slot at the other end and seated firmly Refer to page 11 Alignment of Surfacer Disc Assemblies on the 4GC Models Left Hand Disc CW Rotation The Roll Pins in the front Fm 2 Discs should point slightly Right Hand Disc CCW Rotation The Roll Pins in the back 2 Discs should point slightly inward as shown NOTE If discs do Right Hand Disc not align as CCW Rotation Left Hand Disc CW Rotation Bottom View Figure 7 Multi disc Assembly Mult
31. ut or the composition of the tool being used review the material safety data sheets and or consult your employer the manufacturers suppliers governmental agencies such as OSHA and NIOSH and other sources on hazardous materials California and some other authorities for instance have published lists of substances known to cause cancer reproductive toxicity or other harmful effects Control dust mist and fumes at the source where possible In this regard use good work practices and follow the recom mendations of the manufacturers suppliers OSHA NIOSH and occupational and trade associations Water should be used for dust suppression when wet grinding cutting drilling is feasible When the hazards from inhalation of dust mists and fumes cannot be eliminated the operator and any bystanders should always wear a respirator approved by NIOSH MSHA for the material being used Grinding cutting drilling of masonry concrete 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 grinding cutting drilling such materials always
32. ves the right to alter payment terms 3 FREIGHT TERMS All shipments will be made F O B shipping point as designated in these Terms and Condi tions and title shall pass at the F O B point Delivery to the initial common carrier shall constitute delivery to the Purchaser Any claims for loss or damage during shipment are to be filed with carrier by the Purchaser Seller will not assume responsibility for the per formance of the carrier Back orders will be shipped in the most practical fashion with charges consistent with our freight policy established with the original order UPS FED EX MAIL or shipments by other couriers are subject to the same terms and conditions as outlined in paragraph 3 Freight Terms 4 DELIVERY DAMAGES SHORTAGES Seller shall use reasonable efforts to attempt to cause the Products to be delivered as provided for in these Terms amp Conditions Delivery to the initial common carrier shall constitute the delivery to the Purchaser Sellers responsibility in so far as transportation risks are concerned ceases upon the delivery of the Products in good condition to such carrier at the F O B point and all the Products shall be shipped at the Purchaser s risk Seller shall not be responsible or liable for any loss of income and or profits or incidental special consequential damages resulting from Seller s delayed performance in shipment and delivery 5 RETURN OF DEFECTIVE PRODUCTS Defective or failed materia
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