Bosch OS50VC Use and Care Manual download pdf (Page 12)

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Bosch abrasive sheets: The uniform spacing

between grains minimizes filling or loading.

The high quality aluminum oxide sheet with

heavy backing cuts faster and lasts longer.

The following are recommended abrasive

sheets and applications:

There are also different types of paper made

for wood, paint and other surfaces.

Additional abrasive sheets can be conveniently

cut from large-size commercially available

sheets (standard size 9" x 11" (228 x 280mm).

Cut into two pieces of equal size. Choose the

proper grit for the job.

SANDING TIPS

Bosch orbital sanders are designed to produce

exceptional finishes on wood surfaces, speed

stock removal, or to remove lacquer, varnish,

and other coated finishes.

Orbital sanding provides fast, smooth final

finishes. And this model can sand flush on all

three sides of the tool t

o get in tight places

typical of cabinets, desks and shelving.

• Starting and stopping of sanding - Contact

the work with the tool after sander has

reached its full speed and remove it from the

work before turning the switch “OFF”.

Operating in this manner will prolong switch

and motor life and will greatly increase the

quality of your work.

• This sander’s even weight distribution and

the prevention of paper

slippage by the

SheetLoc system virtually eliminate any

benefit from pressing on the sander.

Excessive pressure to the sander may result

in an uneven sanding job and premature grit

wear. Constant and excessive pressure can

cause overheating and possible damage to

the motor, as well as premature wear out of

the pad.

• It's usually best to work in strokes that

parallel the grain, using some lateral motion

so t

he main strokes are overlapped as much

as 75%.

• If the surface is rough, start sanding with a

coarse grit, then medium, and then finish

with a fine or extra-fine grit. This procedure

will vary with different types of materials and

work.

• Continue to sand with each grit until the

surface looks uniform.

• When going from one grit size to a finer

size, do not skip more than two grit sizes.

• To remove the grea

test amount of stock,

use a coarse grit and move the sander

steadily over the entire surface against the

grain as well as with the grain. DO NOT

REMAIN IN ONE SPOT TOO LONG. It may

remove too much material and uneven

sanding will result.

• Sanding with the grain of the wood gives the

smoothest final finish.

STORING THE SANDER

• Do not store tool with PSA sheets on pad,

as sanding creates heat, which will caus

e an

adhesive bond between the paper and the

pad to harden when paper and pad cool

down.

(See REMOVING PSA ABRASIVE SHEETS

on page 8 & 9.)

FIG. 12

Wood

For preliminary

sanding of rough

wood, unplaned

boards.

For mid-stage

sanding and

smoothing of small

irregularities.

For finish and fine

sanding speed and

sanding sheet

(sandpaper)

Paint/Enamels and

Primers and fillers

For removing paint.

For sanding primer.

For final sanding of

primers between

coats.

Grit

Coase 40, 60

Medium 80, 100, 120

Fine 180, 240, 320,

400

Grit

Coase 40, 60

Medium 80, 100, 120

Fine 180, 240, 320

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