F.F. Group OS 240 PLUS, Original Instructions Manual

|   English

6

OS 240 PLUS

Weight

kg

1,9

Sound emission values determined according to 

EN 60745-1

Typically the A-weighted noise levels of the product are:

Sound pressure level

dB(A) 

78

Sound power level

dB(A) 

89

Uncertainty K

dB

3

Vibration total values a

h

 (triax vector sum) 

and uncertainty K determined according to EN 

60745-1

Vibration level max:

a

h

m/s

2

3,703

K

m/s

2

1,5

IDENTIFICATION

1. 

On/Off Switch

2.  Oscillation speed selector

3.  Rear Handle 

4.  Paper Clamp

5.  Hook & loop sanding base

6.  Front Handle

7.  Dust Box

OPERATION INSTRUCTIONS 

f

Make sure that the power switch

is in the off-posi

-

tion, then plug in the tool.

f

Turn the switch to the ON position.

f

Do not use excess pressure while sanding and always 

sand in same direction as the grain of the wood. Let 

the  sandpaper  do  the  work.  Apply  even  pressure 

over the entire workpiece.

f

Check the wear on the sandpaper at regular intervals 

and replace as necessary. 

NOTE:

 Always turn the switch OFF and unplug 

the sander before changing sheets of sandpaper.

f

Empty  dust  box  regularly  for  optimal  dust  pick-up 

performance. Press button downward and pull it 

open, then pour out the dust.

NOTE:

 Do not use dust box when sanding metal. 

Do not clean the dust box by water.

f

When  sanding  is  completed,  turn  off  the  power 

switch and remove the sander from the workpiece.

f

When  completely  finished  using  the  sander,  use  a 

vacuum to dislodge all sand shavings and dust. Wipe 

with a clean, soft cloth.

f

To prevent accidents, turn off the sander and unplug 

it after use. Clean, then store the sander indoors out 

of children’s reach.

PRESELECTING THE ORBITAL STROKE RATE

With the thumbwheel 

(2)

 for preselection of the 

orbital stroke rate, you can preselect the required 

orbital stroke rate, even during operation. The re

-

quired stroke rate depends on the material and the 

working conditions and can be determined through 

practical testing

SANDPAPER INSTALLATION

f

WARNING:

 To avoid injury from accidental startups, 

turn switch OFF and remove the plug from the power 

source outlet before making any adjustments.

f

Before installing sandpaper, make sure the hook 

and loop fastener base is free of dust and dirt and 

that the sander is unplugged.

f

The hook and loop fastener base will hold any 

hook and loop sandpaper without clamps or glue. 

Simply line up the sandpaper with the hook and 

loop fastener base and press together, making 

sure front edge of the sandpaper is aligned with 

the front edge of the hook and loop fastener base.

f

There  are  also  provided  clamps  to  fasten  non-

hook-and-loop sandpaper to the sander. Select 

a sandpaper with the correct grit corresponding 

to the work to be carried out. To take maximum 

advantage of the sander’s high removal rate and 

smooth  finishing.  It  is  essential  that  the  sandpa

-

per be properly and tightly secured. Tight paper 

also wears less and lasts longer. Insert end of new 

1/4  sheet  sandpaper  approximately  1.5cm  under 

the paper clamp. Lift up on paper clamp lever and 

lock into place. Apply downward pressure to con-

form sandpaper to sanding base. Wrap sandpa-

per around cushion. Lift lever on opposite end of 

sander and insert loose end of sandpaper under 

the paper clamp. Fit sandpaper against cushion 

tightly. Lift up on the lever and lock into place.

f

To  remove  used  sandpaper,  peel  one  edge  away 

from the hook and loop fastener base until the 

whole sheet is free.

CAUTION:

 Do not use torn or severely worn or 

damaged sandpaper. To do so could damage the 

surface of the hook and loop fastener base.

SELECTING THE SANDING SHEET

Depending on the material to be worked and the 

required rate of material removal, different sanding 

sheets are available:

For the working of all wooden materials

For coarse - sanding, 

e.g. of rough, unplaned 

beams and boards

coarse

40, 60

For face sanding and 

planing small irregu-

larities

medium

80, 100, 120

For finish and fine sand

-

ing of hard woods

fine

180, 240

For the working of paint/enamel coats or prim

-

ers and fillers

For sanding off paint

coarse

40, 60

For sanding primer

medium

80, 100, 120

For final sanding of 

primers before coating

fine

180, 240