Floor Grinder Operating Manual Model: Legacy Industrial s SD Grinder Manufacturer: Legacy Industrial Corp. Please read these instructions carefully before using. 1
Page Number Contents 2 Introduction and Description 3 Technical Data 4 Operation 5 Safety Precautions 6-7 Troubleshooting 7 Maintenance 7 Parts Diagram 8 Parts List 9-10 Customer s Responsibility 11 Terms and Conditions 12-14 2
Introduction and Description This manual is intended to provide operation and service information necessary for the safe and efficient use of this Floor Grinder. Operating or servicing the unit other than in accordance with the instructions given may subject the machine to conditions beyond its capability. This may result in the machine failure or personal injury. IMPORTANT Read the entire operating manual carefully before attempting to use the floor grinder. Special attention should be given to the section entitled Safety Precautions. The floor grinder is a sturdy, reliable and easy to use machine. The floor grinder is fitted with a 1.5 hp single phase motor. This motor offers a direct drive to the grinding plate by way of a flexible coupling between the motor and the plate. The shroud system is unique in design by automatically adjusting to suit segment height and floor angle. This shroud system when used in conjunction with an appropriate industrial vacuum unit helps to eliminate dust during grinding. The shroud has 2 removable sections to allow the operator to maneuver the grinder close to the wall. Please note that dust will likely occur when using the grinder with the either shroud section removed and represents a safety-hazard if not being used against a wall. The floor grinder comes complete with a water connection for wet grinding, if required. The water connection incorporates a ball valve that allows the operator to regulate the water supply to obtain the best grinding results. It is important to use a GFCI protected circuit when operating wet. The floor grinder has a foldable handle which enables it to be easily transported in the trunk of most vehicles. The operator can raise or lower the height of the 3
handle to maximize comfort. The newly designed lifting handle system makes the machine easy to lift. Technical Data Motor HP Motor KW Rating Motor RPM Unit Weight Plate Type Plate Bolt Types Main Construction 1.5 hp 1.1kw 1730rpm 132 lbs. /60kg Plate Type Standard 10 inch grinding head M12x25 countersunk socket head Powder Coated Steel Operation The floor grinder is designed to be used either wet or dry. If the application requires dry grinding, a suitable industrial vacuum is required. GFCI protected circuit is recommended for wet use. Consult Safety Data Sheets for the materials being ground. Concrete dust and floor coatings contain materials that can be harmful. SEE SAFETY PRECAUTIONS FOR Silica Dust Warning. Recommended personal protective equipment PPE: Hearing: Use hearing protection (ear plugs or covers designed for this use) Eye: Use protective goggles or glasses Respiratory: Use a NIOSH/MSHA device (mask or respirator) that protects your lungs from the level of dust you are creating or working in Hand Protection: Sturdy Gloves Foot: Sturdy, Closed Toe Shoes 4
Operating the Grinder 1.Make sure the diamond tooling is suitable for the material being ground and that the tooling is correctly balanced. If wobbling or excessive vibration is noticed, discontinue use, unplug the unit and inspect tooling and tooling plate. 2.Ensure that the grinding plates are in good condition and properly mounted. Never use damaged tooling. 3.All countersunk bolts must be tightened to specifications and firmly in place. Take periodic breaks to ensure that bolts are properly tightened, as they can loosen during operation. 4.Check that the grinding plate is adjusted so that it sits level on the work surface (use the bubble-level on the machine as a reference). 5.Check that all nuts and bolts on the folding handle latch are tight and secure. 6.Raise the grinding plates from the floor. 7.Start the motor by pressing the black switch on the starter box. 8.Lower the grinding plate and begin grinding. Keep the grinding head moving side to side on the work surface to create an evenly ground surface until the desired results are reached. 9.When grinding for removal of coatings/mastic/over-layments it is important to grind slowly (small bites) so that the unit is not overheated. 10.Use of this machine and common sense. If you are not sure if the machine can do what you need to be done and do it safely, consult your supervisor, employer or Legacy Industrial for clarification. Stopping the Grinder Depress the red stop button on the start box. Adjusting the machine for level The position of the axle may be adjusted as needed for leveling. 1.Adjust the vertical grinding position by loosening the level adjustment fastener counter clockwise. 2.Lifting the level adjustment handle raises the back end of the grinder. 3.Lowering the level adjustment handle lowers the back end of the grinder. 4.Use bubble-level, mounted on the machine as a reference. 5.Secure desired grinder position by tightening the level adjustment fastener Clockwise. 5
Safety Precautions The Floor Grinder has been designed to minimize noise, vibration levels and to provide maximum operator safety. However, incorrect use of the grinder may cause serious injury and therefore the following precautions must be taken: 1.Do not use the grinder for longer than prescribed in your local environmental working regulations, as the noise load from extensive daily use may result in hearing damage. 2.Always use hearing protection, goggles, gloves, lung protection (NIOSH mask or respirator as appropriate) and appropriate closed-toe footwear. 3.Do not modify the grinder in any manner. Do not use a machine that has been modified by anyone other than the manufacturer or authorized dealers. 4.Do not add weight to the machine. Use different grinding plates to achieve the desired grinding performance. Added weight can glaze tooling. 5.Do not operate the grinder with the grinding head raised any higher than necessary. i.e. tipped back on handle. 6.Always be sure that folding handle latch is secure and has not become loose during use. 7.During normal use the machine is exposed to vibration. Occasionally check machine for bolts/nuts and wire connections which may have vibrated loose. 8.Do not allow water or flammable materials to enter the interior of the Motor. 9. Be aware of the area and people around you while working. Keep a 10 safety buffer between the machine and other workers or sensitive items. Respirable Silica Dust 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 cut or the composition of the tool being used, review the Safety Data Sheets (SDS) and/or consult your employer, the manufacturers/suppliers, governmental agencies such as OSHA and NIOSH and other sources on hazardous materials. Use engineering controls to control dust, mist and fumes at the source wherever possible. Use good work practices and follow the recommendations 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 6
always wear a respirator approved by NIOSH/MSHA for the material being used. Grinding/cutting/drilling of masonry, concrete and other materials containing silica may generate 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. The state of California and other authorities have listed respirable crystalline silica as a substance known to cause cancer. When grinding/cutting/drilling such materials, always follow the respiratory precautions mentioned above. Troubleshooting Symptom Possible Cause Action Grinder runs for short time then stops Grinder runs but does not perform adequately. Grinder vibrates during use The electrical power current limit screw is not adjusted properly or the contactor switch is in need of replacement Tooling is not matched to the application Grinding plates not correctly balanced or grinding tools are glazed/too hot Grinding noise coming from Worn motor bearings or grinding head under no-load drive coupling operation. Protective circuit breaker opens while using, repeatedly Maintenance & Inspection Cord damage or excessive motor heat from being over-worked or low voltage/amperage Adjust the current limit screw located in the Schneider housing to the appropriate setting. If this does not remedy issue order a new contactor switch Re-evaluate tooling selection. Replace grinding plates. Have machine evaluated and serviced by authorized service professional Inspect all cords and connections, replace any damaged wire/cord or connection, test incoming power for proper voltage/amperage Daily cleaning: The motor should always be kept clean. No water, or foreign materials should be allowed to get into the interior of the motor. Check operating amperage draw: While the motor is in operation, take care to keep the operating amperage below maximum level. 7
Operational sounds: During operation of the motor there must be no rubbing sounds, squeals or other random noises. Stop the motor immediately and restart after inspection and corrections have been made. Check the security of the adjustable folding handle latch periodically. The wheel bearings use sealed bearings and require no regular greasing. Tooling & attachment Electrical Connections Inspect Machine Entirely Tool Carrier Bolts Levelness Before every use Every 8 hours of use Before every use Before every use Before every use Parts Diagram 8
Number Description Qty 1 Handle 2 2 Upper arm 1 3 Switch assembly 1 4 Plug wire 1 5 Power wire 1 6 Electric motor 1 7 Motor carry Handle 1 8 M6X16 hexagon screws 4 9 Motor fixed mount 1 10 Motor connection plate 1 11 φ10 Flat washers 1 12 M8X25 hex screw 4 13 Dust shroud 1 14 M12X25 socket hexagon screw 2 15 Detachable shroud 1 16 Shroud plastic wear strip set(long) 1 17 Shroud plastic wear strip set(short) 1 18 motor driving sleeve 1 19 M10X30 hex screw 1 20 M10 nuts 2 21 φ10 Flat washers 2 22 flex coupling 1 23 M10X55 hex screw 2 24 M10X55 socket hexagon screw 2 25 connection disc 1 26 M8X12 socket hexagon screw 3 27 Dowel disc 1 28 Flexible conduit 1 29 Clipφ60 2 30 M10X30 hex screw 2 31 φ10 Flat washers 2 32 Wheel 2 33 M8X12 hexagon screws 2 34 Lift lever 1 35 Eccentric shaft 1 36 M12 locking screws 1 9
37 cooling water pipe 1 38 Frame body part 1 39 M10 nuts 2 40 φ10 Flat washers 2 41 Connection sets 2 42 M12X25 Round socket hexagon screw 2 43 adjust handle 1 44 M8X20 hexagon screws 2 45 Positioning clamping claw buckle 1 46 Level bubble 1 NOT SHOWN IN DIAGRAM 47 Standard 30 Grit Medium Bond Tool 6 48 50 twist lock extension cord 1 49 Owner s Manual 1 50 30 Grit Medium Bond Grinding Plate 10 Opt. Optional Tools (available for purchase) 16, 30 Grit Medium, Soft, Hard, Super Soft Bond Tools Small PCD Tool with Bar Marker Segment Full PCD Tool with Dot Marker Segment 16, 30 grit 10 Grinding Plate, Various Layouts 101 0
Customer s Responsibility It is the owner or manager s responsibility that the user/operator has sufficient knowledge about how to use the machine safely. Supervisors and operators must have read and understood the Operator s Manual. They must be aware of: The machine s safety instructions. How the machine is to be used and maintained. National legislation could regulate the use of this machine. Find out what legislation is applicable in the place where you work before you start using the machine. The machine s range of applications and limitations. Inspecting the equipment prior to use and the immediate and effective STOP of the machine if it exhibits any vibration, erratic behavior or unusual noise. 11 1
Terms and Conditions Legacy Industrial Corp., Inc. herein referred to as Legacy (Seller) warrants that each new unit manufactured by Legacy to be free from defects in material and workmanship in normal use and service for a period of (3) months (except for tooling, tool carrier, dust shroud, tires, handle grips, NO WARRANTY AVAILABLE for these items) from date of shipment to the original owner. Accessories or equipment furnished and installed on the product by Legacy but manufactured by others, including, but not limited to motors, electrical components, etc., shall carry the accessory manufacturers own warranty. Legacy will, at its option, repair or replace, any part which shall appear to the satisfaction of Legacy inspection to have been defective in material or workmanship. Legacy 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. This warranty is for PARTS ONLY. Labor incurred to replace said parts is by the Seller and must be replaced/serviced by a qualified entity. This 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 merchantability and the warranty of fitness for a particular purpose in no event shall seller or the manufacturer 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 qualified to do so 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 a common carrier, inability to obtain Product, materials or components or qualified labor sufficient to timely perform part of or all of the obligations 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 121 2
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 ( Purchaser ) will purchase and Legacy ( 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. 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. DELIVERY, DAMAGES, SHORTAGES Seller shall use reasonable efforts to attempt to cause the Products to be delivered as provided for in these Terms & Conditions. Delivery to the initial common carrier (LTL FREIGHT 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. RETURN OF DEFECTIVE PRODUCTS Defective or failed material 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. Credit or replacement will be issued for material found to be defective upon Seller s inspection based on prices at time of purchase. Products sent back for inspection that are found to be abused, misused, or forcefully damaged will not be candidate for any parts warranty by Legacy without payment for said repair or replacement by buyer. RESOLD PRODUCT Legacy offers no warranty to any party or parties other than the original purchaser, unless authorized by Legacy at time of sale in writing. In which, the 2 nd purchaser would receive the fitness specified herein these term and conditions. 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 131 3
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 30% 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. GOVERNING CLAUSE These Terms & Conditions shall be governed by, and interpreted and enforced in accordance with the laws of the state of Florida. Exclusive jurisdiction and venue shall be with the courts service in Orange County, Florida. 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 these 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 LEGACY PARTS & ACCESSORIES FOR SAFETY AND LONGEVITY. Legacy Industrial Corp. 13440 West Colonial Dr. Suite # 2 Winter Garden, FL 34787 Ph: 888-652-0333 Email: sales@legacyindustrial.net Site: www.legacyindustrial.net 141 4