American-sanders American 8 Drum Sanders Manuel d'utilisateur télécharger pdf (Page 13)

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American Sanders American 8 Floor Sander Operator's Manual Page 13

Sanding Cuts and Sandpaper

Initial Cut

The purpose of the initial cut is to remove old nish and gross imperfections on the oor surface. The sanding equipment should

be adjusted to heavy sanding pressure setting and a coarse abrasive should be used. If the surface is severely damaged by deep

scratches, pre-existing dwell marks, uneven planks, etc., it may be necessary to sand across or diagonally to the grain to restore

evenness to the surface. If these conditions are not present, the initial cut should be done in the direction of the grain.

If glazing, loading, or burning takes place immediately into an initial cut, select a coarser abrasive. If this should occur during an initial

cut, the abrasive has dulled and must be replaced.

Final Cuts

The purpose of a nishing cut is to remove the scratches produced during the initial cut. Use a ne (60 - 80 grit) grain abrasive and a

reduced sanding pressure setting.

If the surface remains rough after a nishing cut, it may be necessary to use an even ner grain of abrasive (80 - 100 grit). Care

should be taken in selecting the grit size of the abrasive. A very ne grain will close the pores on a wood oor making admission of a

stain difcult.

If glazing or burning should occur immediately into a nishing cut, reduce the sanding pressure. If it should occur during a nishing

cut, the abrasive has dulled and must be replaced.

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American-sanders American 8 Drum Sanders Manuel d'utilisateur Page 13