F.F. Group OS 320 PLUS, Original Instructions Manual

English   | 7

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OS 320 PLUS

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

MODELS FITTED WITH DUST EXTRACTION FACILITY

Always check that the suction hole are not obstruct-

ed when fitting the sanding sheet and that the per

-

forations in the sand sheet align with the holes in 

the base.

CHIP OUTLET (PAGE 3)

An extraction hose (Ø 35 mm), can be attached on 

the chip ejector.

If desired, attach the dust box by sliding the nozzle 

onto the chip extraction port. For efficient opera

-

tion, empty the dust box when it is no more than 

half full, allowing better airflow through the bag.

You can also connect your tool to a suitable dust ex-

traction system through the extraction port. Hose 

adaptors (not included) may be needed depending 

on the side of your dust hose.

TROUBLE SHOOTING

PROBLEM

CAUSE

SOLUTION

Tool will not 

start.

Power cord not 

connected.

Check that the 

power cord is 

plugged in.

No power at 

outlet.

 If outlet is 

unpowered, 

turn off tool 

and check circuit 

breaker.

Internal  damage 

or wear.

 Have  technician 

service the tool.

Excessive noise 

or rattling.

Internal damage 

or wear.

Have technician 

service the tool.

Sander not 

sanding 

effectively.

Possible 

sandpaper 

problem.

Check 

sandpaper for 

wear and or 

damage.

Sander not 

sanding 

effectively.

Possibly 

wrong grit of 

sandpaper.

Fine sandpaper 

is graded in 

large numbers 

(100 to 

600). Coarse 

sandpaper is 

small numbers 

(36 to 80).

MAINTENANCE

Regular inspection and cleaning reduces the neces-

sity for maintenance operations and will keep your 

tool in good working condition. The motor must be 

correctly ventilated during tool operation. For this 

reason avoid blocking the air inlets.

ENVIRONMENTAL PROTECTION

Recycle raw materials instead of disposing 

as waste. Machine, accessories and pack-

aging should be sorted for environment - 

friendly recycling. The plastic components 

are labeled for categorized recycling.

EXPLANATION OF SYMBOLS 

Double insulation

For indoor use only. Do not expose to 

rain.

Wear eye protection.

Damage to lungs if an effective dust mask 

is not worn.

Wear protective gloves

Damage to hearing if effective hearing 

protection is not worn.

To reduce the risk of injury, the user must 

read and understand this manual before 

using this product.

Important!

Conforms to relevant safety standards

GUARANTEE

This product is warranted in accordance with the le-

gal/country  specific  regulations,  effective  from  the 

date of purchase by the first user. Damage attribut

-

able to normal wear and tear, overload or improper 

handling will be excluded from the guarantee. In