Truper 13448, Manual

7

Start Up

• To work on ferrous metal, like steel, stainless steel, iron, 

etc., use rough or fine grain belts, regarding the desired 

finish. Non-ferrous metal such as aluminum, tin-plate 

soldering, brass, bronze, etc., can also be sanded.

• To minimize the load and prolong the belts’ working time 

use some lubricant for sanding, polishing, or for satin finish 

of metals.  Just rub the lubricant onto the belt every now 

and then. Also, you can use SAE No. 10 or 20 lubricant oil 

to assure a smooth and scratch-less surface.

Metal finish

sanding belts

• To prevent striation of the piece start sanding with the 

sander running.

• Keep the sander moving to get a smooth and even job.

• Sanding consists in a backward and forward movement.  

Most of the job is made with the traction movement.

• Do not force the tool against the work piece. The 

sander’s own weight generates enough pressure to make a 

good job. Too much pressure will tear the sander’s grain, 

diminishing the sanding efficiency.

• Sand slowly and systematically.

• When you stop, raise the sander from the work piece 

before turning it off.

Sanding

• Assure you are selecting                                  brand 

sanding belts with the right grain.

• For the initial sanding on an unfinished piece of wood 

use a belt with rough or very rough grain. Sand along the 

grain. Should the wood is uneven or to hard, sand 

diagonally (across the grain). Use care to prevent striation.

• After the preliminary operation, change the belt. Use a 

medium grain belt and sand along the grain. This will give 

a relatively smooth and even finish.

• For the final finish set a fine grain belt. Always sand along 

the grain to remove scratches left by the rougher belts. For 

a good finish use long and light passes.

• As a final touch, the experts usually set a fine sanding 

belt used to get a smooth surface, to fill, seal, plane or 

spray.

Wood finish

• The belt sander also removes old paint, varnish or 

lacquer. Please use the safety measures mentioned before.  

However, if the paneling is made of several layers, remove 

as much material as possible with a paint solvent or 

varnish remover before using the belt sander. Use a 

hand-scratcher to remove residues left by the solvent.  

Allow the surface to dry completely before sanding.

• For a fast removal, start with a rough grain belt.

• When you can see the raw material change to a medium 

grain belt to prevent from scratching it. Use short and light 

passes moving the sander quickly.

• Pay attention that excessive pressure or constantly 

sanding on the same spot will burn the panel.

Finishing panels

ENGLISH

Grain

Type

Applications

36

40

50

60

80

100

120

150

180

Extra rough

Extra rough

Rough

Rough

Medium

Medium

Fine

Fine

Extra fine

Super-fast removal

of material.

Fast removal of material

and sanding to shape wood.

Final sanding or to clean

surfaces before painting or sealing.

Final sanding or

after sealing.

Moderate removal of material.

Eliminate superficial

imperfections.