114.1 GENERAL INFORMATION AND TIPSYou may use your TRIO for many a wide range of dry floor treat-ment.For the first sanding of newly laid parquet it is advisable to use theHUMMEL with sanding agents of up to 60 or 80 grain, whatever thejob demands. The choice of sanding agent depends on the kind ofwood involved, initial run, type of sealing and the required surfacefinish. Always only use half-decked diffuse sanding papers.With the TRIO, you should always begin with 60 grain sandingdiscs. In the case of a poor first run, the amount sanded off canbe increased by sanding without the flexible Velcro rings. As withbelt sanding, the first run has to eliminate all the signs of previoussanding jobs!Mesh discs must be used for intermediate varnish sanding. Thechoice of grain depends on the varnish used, the varnishing speedand the required finish.For cork floors, use 60 grain discs for your first run and 80 grain discsfor the second. Intermediate varnish sanding and sanding of corkand rubber floors should be done without the additional weight.Suction the dust from the floor thoroughly after each sanding proc-ess. Keep the running wheels of the machine clean.Further important and interesting information about sanding woodenfloors can be found in the LÄGLER application techniques brochure„Sanding wooden floors“!WORKING WITH THE TRIOWorking with the TRIO4Further information can be obtained free ofcharge: within Germany- Phone: 0800 / 52 34 537- Fax: 0800 / 48 66 353within USA- Phone: 800-848-6635or- Phone: +49 - 7135 - 98 90-0- Fax: +49 - 7135 - 98 90-98- e-mail: info@laegler.com- Internet: http://www.laegler.comThe machine must never be used for wet sanding jobs of anykind!