Quick Guide to Floor Grinding
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Quick Guide to Floor Grinding Floor prep/Stripping Leveling floors Restoring floors Grinding natural stone Concrete grinding/polishing Wood grinding HTC - Professional Floor Systems

Tool guide Concrete grinding OBS! NB! Soft concrete causes more wear on the tools. Check tools for wear after 10 mins. It takes about 20 to 30 days for newly-laid concrete to harden and attain its full strength. Source: HTC Sweden AB. The values can vary depending on the quality of the concrete. * Mega Pascal Coating removal

Tool guide Mounting tool holders/diamond tools When mounting tool holders, the following precautions should be taken: • • • • • • • • Remove any loose weights. The discs and tools may be hot. Use protective gloves! The power should be off and HTC recommends that the cord be unplugged. Tip the machine over and detach the old tool holder. The tool holder can also be screwed to the machine if desired. Lock the tools. Turn the machine upright and check the splash guard. Make sure the splash guard is lying flat against the floor. An improperly mounted splash guard can cause problems such as poor...

Tool guide What if the tools don’t work? What do I do if the tool glazes* over or grinds poorly? 1. 2. 3. 4. Increase the weight (pressure) Vary the speed Moisten the surface Switch to tools with a softer bond Check the tools after about 10 minutes to ensure they are not wearing down too quickly. What should I do if the tool wears out too fast? 1. Choose a tool with a harder bond 2. Reduce the pressure 3. Increase to a full set (Tools in all places.) What is meant by “too fast”? 1. If the tool wears down more than 1mm in 30 minutes. Measure the tool for wear after about 10 minutes. *Glazing...

Machine operation Control knobs - Description of functions The control panel has the following knobs: • • • • Emergency stop Red button. Located on the control panel; cuts the power immediately. On/Off (main switch) Starts and stops the machine’s electronics and prepares for start-up. A green light is lit when the switch is turned. Speed (applies only to machines with variable speed) Regulates the speed of the machine’s grinding discs. Rew/Fwd (used to start and stop the machine) Starts and stops the machine’s grinding discs. Starting the machine 1. Begin by placing the machine in start-up...

Machine operation What if the machine doesn’t start? 1. Make sure the emergency stop button is not pushed down. 2. Make sure the machine’s power cord is okay, has sufficient area, and is not too long (30 meters [98 feet] maximum for single-phase, 50 meters [164 feet] for three-phase). 3. Is the grinding head pressure too high? Remove any weights or lift the machine slightly to ease the pressure on the grinding heads. 4. Check to see if a fuse blew. 5. Check for an error code on the converter’s display in the electric cabinet. How do I use the machine? Before you get started, do the...

General advice Choose the right machine Your choice of machine should be determined by the surface and time. Large surface area=large machine, and vice versa. It is essential to know how many times the surface needs grinding (grinding steps). Inspect the surface Inspect the floor carefully and remove any objects sticking up that might get fastened in or damage the machine and tools. Use the correct power cord Use a power cord that is no longer than 30 meters (98 feet) for single-phase or 50 meters (164 feet) for three-phase and that covers an area big enough to accommodate the machine being...

Machinery for all floors from HTC - the industry leader HTC Sweden AB | P.O. Box 69 | SE-614 22 | Söderköping | Sweden Tel: +46 (0)121-294 00 | Fax: +46 (0)121-152 12 | www.htc-sweden.com