American Sanders American 12 07044C, Руководство оператора

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American Sanders - American 12 Floor Sander Operator's Manual FORM NO. 78150D Page 13
Sanding Cuts and Sandpaper
Initial Cut
The purpose of the initial cut is to remove old fi nish and gross imperfections on the fl oor surface. The sand-
ing 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 fi nishing cut is to remove the scratches produced during the initial cut. Use a fi ne (60 - 80
grit) grain abrasive and a reduced sanding pressure setting.
If the surface remains rough after a fi nishing cut, it may be necessary to use an even fi ner grain of abrasive
(80 - 100 grit). Care should be taken in selecting the grit size of the abrasive. A very fi ne grain will close
the pores on a wood fl oor making admission of a stain dif fi cult.
If glazing or burning should occur immediately into a fi nishing cut, reduce the sanding pressure. If it should
occur during a fi nishing cut, the abrasive has dulled and must be replaced.
945516
945517
945518
945519 12 grit
16 grit
20 grit
24 grit
For removing gross imperfections and restore evenness
to old fl ooring. To remove build-up of paints and varnishes.
30 grit For fi rst sanding of new fl ooring (maple, oak). For removing 945520
36 grit minor imperfections and fi nishes from old fl ooring. 945521
40 grit For fi rst sanding of new fl ooring (oak, walnut). For removing 945522
minor imperfections and fi nishes from old fl ooring.
50
grit For fi rst sanding of new fl ooring (cedar, pine, fi r) 945533
For clean-up of 16 grit.
60 grit For clean-up from initial cut 36 - 40 grit. 945544
80 grit For fi nal sanding of certain hardwoods. For clean-up 945545
of initial cuts (50 grit).
100 grit For fi nal sanding of certain hardwoods where a smooth 945546
surface is desired.
120 grit For fi nal sanding of certain conifers. 945547
150 grit For fi nal sanding of certain conifers where a smooth 945548
surface is desired.
180 grit For surface roughing between coats of fi nish. 945549
Abrasive Bulk Roll
Note:
All part numbers listed are for 12" x 50' (30.5 cm x 18m)
Part No.
Grain Use