735.5270 Inc D-Of-C TCG250 (N1 Engine Shaft) with Part Numbers (WITH Machine Stand) Current 28.9.17.Pub
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TCG 250 Floor Grinder Operation and Maintenance Manual www.trelawnyspt.co.uk OPERATION Foreword Safety that the operators wear personal Thank you for your purchase of the WEAR SAFETY BOOTS, FACE protective equipment [PPE] TRELAWNY TCG250 Floor Grinder. MASK, SHATTERPROOF particularly gloves and clothing to GLASSES, HELMET, GLOVES and keep them warm and dry. This manual contains the necessary any other personal protective Employers should consider setting maintenance information for you to equipment required for the working up a programme of health ensure proper operation and care for conditions. Avoid loose clothing; this surveillance to establish a this machine. may become trapped in moving benchmark for each operator and to parts and cause serious injury. detect early symptoms of vibration See also the manual that is TO AVOID NUISANCE DUST, injury. supplied by the engine connect an industrial vacuum We are not aware of any PPE that manufacturer. cleaner (minimum 3000watts or provides protection against vibration equivalent) to the 50mm (2”) vacuum injury by attenuating vibration It is essential for you to read port situated at the rear of the emissions. through these manuals machine. thoroughly. ENSURE THAT THE WORK PLACE See ‘Specifications’ section for IS WELL VENTILATED. Avoid vibration emission data. In the unlikely event that you operating engine-powered machines experience problems with your in an enclosed area, since engine Further advice is available from our TCG250, please do not hesitate to exhaust gases are poisonous. Technical Department. contact your local Trelawny dealer or BE VERY CAREFUL WITH HOT agent. We always welcome COMPONENTS. The exhaust and We strongly advise you to visit the feedback and comments from our other parts of the engine are hot Health & Safety Executive website valued customers. during operation and can remain hot http://www.hse.gov.uk/vibration This for some time after shutdown. site provides excellent advice and information on HAV and currently, DO NOT REFUEL THE ENGINE includes a Hand-arm Vibration General Information Exposure Calculator that is easy to Before operating, performing WHILE THE ENGINE IS HOT OR RUNNING, there is a very real use to work out the daily vibration maintenance or repairing the exposure for each of your operators. TCG250 FLOOR GRINDER this danger from explosion – always refuel when the engine is cold, and manual must be read and understood by the operator, if in any in the open air. doubt, ask your supervisor before During transportation fasten fuel cap Media Types & using this equipment. tightly and close fuel tap. Applications Grinding Blocks Local safety regulations must be All can be used wet or dry followed at all times. Failure to follow DO NOT OPERATE ELECTRIC these instructions could result in VERSIONS IN WET CONDITIONS. Coarse grinding blocks damage to the TCG250 and/or These are fitted as standard on personal injury. CAUTION THIS MACHINE IS machines fitted with the grinding HEAVY. It weighs between block option. These are designed for Trelawny SPT Limited disclaims all (92kg/202lbs) and (144kg /317 lbs) the rapid removal of material. They responsibility for damage to persons dependent on power unit. produce a surface finish suitable for or objects arising as a consequence directly laying floor coverings or for of incorrect handling of the machine, Do not lift this machine manually. two part epoxy paint coatings and for failure to inspect the machine for the first grind of terrazzo floor damage or other faults that may surfaces. influence the operation prior to Risk of Hand-arm starting work, or failure to follow the Vibration injury Medium grinding blocks safety regulations listed or applicable These tools may cause Hand-arm These are less aggressive than the to the job site. Vibration Syndrome injury if their use coarse blocks, they should provide a This machine is primarily designed is not adequately managed. surface finish suitable for painting or for the smoothing of concrete, We advise you to carry out a risk used as the next stage to the coarse marble and terrazzo surfaces. It can assessment and to implement grinding blocks, when achieving a be used both indoors and out. measures such as; limiting exposure polished surface on terrazzo tiles or time [i.e. actual trigger time, not total other marble type surfaces. Electric models are more suitable for time at work], job rotation, ensuring indoor use because of the toxic the tools are used correctly, ensuring Fine grinding blocks exhaust gases that are produced by the tools are maintained according to These are the least aggressive of all petrol engines. our recommendations, and ensuring the grinding media. These are generally only used for final finishing to provide a surface suitable for final polishing. OPERATION In addition, scarifying blocks and Each unit is fully tested and the 230v and 415v Motors wire brushes are available which can overload relays have been calibrated Take particular care when using be fitted in place of the grinding and set according to the 230v or 415v Machines, ensure that blocks. manufactures specifications. the electrical supply is earthed and that breakers and fuses are correct Diamond Disc machine In the event of malfunction on a new for the loading. The machine is fitted with a 20 machine, the owner should first segment diamond disc for medium check that the power supply on site The 230v motor requires the concrete as standard (see below for is suitable and adequate. minimum of a 13amp, 220v power specification). There are also 10 All cables should be fully uncoiled supply. segment discs for very aggressive and never left wrapped around cable grinding and 16 segment discs for reels or tied in loops. The 415v motor requires the aggressive grinding available. The minimum of a 10amp, 380v power 20 segment disc are the most The starter box is fitted with a safety supply. Always use the shortest economical and least aggressive. feature to protect the motor and possible length of extension cable. relays from damage. Should an To avoid voltage drop the cable must All discs can be used wet or dry. overload condition occur which have a minimum core wire size of triggers the thermal overload within 2.5mm2 cross-section area. Grinding disc 20 segment (Blue) the starter, depress the red stop Maximum length of cable 30 meters. (Soft bonded diamond) button to reset. Premium disc. ENGINE VERSIONS For medium to hard material, Note that the circuitry may have to CAUTION granite, cured concrete or terrazzo. cool down for a period before the Beware of POISONOUS FUMES. overload switch can reset itself upon Start and operate only in well- Grinding disc 20 segment (Black) depressing the stop button. ventilated areas. (Medium bonded diamond) Premium disc. The starter boxes are preset and Starting For medium or general abrasive under no circumstances should they Machines fitted with petrol materials - medium strength be tampered with, stripped down or engines concrete or adhesives. adjusted, otherwise it will invalidate the warranty. The disc must be raised off the floor Grinding disc 20 segment (Red) surface before starting the engine (Hard bonded diamond) . from cold. Premium disc. 110v Motor The machine is fitted with a pedal For softer or abrasive materials - The motor requires the minimum of a operated stand to allow the disc to green (less than 48hrs old) or 32amp, 110v power supply. be raised off the ground when medium strength concrete, or Always use the shortest possible starting the engine. adhesives. length of extension cable. To avoid Tilt the machine back by it’s handle voltage drop the cable must be a bar whilst depressing the pedal, minimum core wire size of 2.5mm2 keeping the pedal depressed, lower but preferably 4.0mm2 cross-section. the machine back to the floor. The Pre-Start Check weight of the machine keeps the ALL VERSIONS The maximum length of cable can then be 15 metres and 30 meters stand engaged and the head off the Check all bolts and screws for floor. tightness. Ensure that all fittings are respectively. The engine may now be started. secure. When starting from cold the throttle Check the drive belts for correct Use a centre tap transformer with a continuous rated output of at least lever must be in the fast position to tightness. There should normally be allow the automatic choke to approximately 13mm (1/2") of free 3.0KVA. In practice this means that a 5.0KVA transformer must be used. operate. Subsequent starting may play when the belt is depressed in be carried out with the lever in the the middle position between the two Manufacturers have different methods of rating their equipment. idle/slow position. pulleys. Once the engine is at operating All transformers and cables should temperature you may begin work. To check and set the belt tension, To retract the stand simply tilt the refer to the Belt installation & be fitted with 32amp plugs and sockets. machine back. Adjustment section. The 230v supply to the 110v See next section for detailed engine The TCG250 is supplied with a starting procedure. specially commissioned electric transformers ideally should be rated motors and starter switch assembly. to at least 20amp if supply problems are to be avoided. Be careful with HOT COMPONENTS. The exhaust and other engine parts are hot during and for some time after operation. Do not touch them. OPERATION Petrol engine starting procedure Machine Operation Shut Down Check that there is sufficient fuel in (Please refer to manual handling On electric powered machines, the fuel tank. (See manufactures recommendations when lifting.) simply release the “hold to run” hand book for type) lever. Connect a suitable commercial On engine powered machines, move Check that the engine oil level is vacuum which has been designed the engine’s throttle lever to the slow correct.