Practical Operating Procedures - Hitachi FSV 10SA Handling Instructions Manual

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PRACTICAL OPERATING PROCEDURES

CAUTION
Never apply water or grinding fl uid when sanding. This could result in electrical
shock.
1. Switching the sander ON and OFF
The power can be turned on by setting the lever to ON ( I ) and turned off by setting the
lever to OFF (0).
CAUTION
Never turn the power switch ON when the sander is contacting the surface to be
sanded. This is necessary to preclude damage to the material. The same applies
when switching the power OFF.
2. How to hold the orbital sander
While gripping the housing, lightly press the sander
against the surface to be sanded so that the sanding
paper uniformly contacts the surface, as shown in Fig. 4.
DO NOT apply excessive pressure to the sander while
sanding. Excessive pressure may cause overload of the
motor, reduced service life of the sanding paper, and
lowered sanding or polishing effi ciency.
3. How to move the orbital sander
For optimum operating effi ciency, alternately move the
sander forward and backward at a constant speed and
balance.
4. After installing new sanding paper
Movement of the sander may tend to become unsteady
after new sanding paper has been installed, because of
the new, coarse grain of the paper. This can be avoided
by slightly tilting the sander forward or backward during
sanding or polishing. Sander movement will become steady
as the sanding paper surface becomes properly abraded.
5. Using commercial sanding paper having no holes
Obtain 230 × 280 mm sanding paper and cut into 3 equal
longitudinal portions (Fig. 5).
Before using, make holes in the sanding paper to boost its
dust absorbing effi ciency.
To make the holes (perforations), align the sanding paper
with the guide in the accessory punch plate and apply
pressure (Fig. 6).
16
Fig. 4
280 mm
230 mm
Fig. 5
Punch plate
Guide
Fig. 6