Cleaning - Scheppach Sbt-20 Originalbetriebsanleitung

7. After the work process, first close the blasting ma-
terial shut-off valve (12) so that no blasting material
remains in the lines.
8. Close the main supply line shut-off valve (17).
9. Switch the compressor off.
10. Keep the lever (6) on the blasting gun (8) pressed
until all the air has escaped from the lines.
11. Close the blasting hose supply line shut-off valve
(19).
12. It is recommended to empty all of the blasting
material out of the container after work to avoid
clumping due to humidity.
10.8 Work hints and tips
When sandblasting, there are some important points
that should be considered:
• Always wear protective clothing. Sandblasting
can release small sand particles and dust that can
irritate the eyes, skin and respiratory organs. It is
important to wear protective clothing such as safety
gloves, goggles and a respirator.
• Prepare the surface: Before sandblasting, the sur-
face should be thoroughly cleaned to remove dirt,
grease and rust. This ensures an even blasting
force.
• Pressure and nozzle selection: The blasting pres-
sure and nozzle selection must be matched to the
surface to be treated in order to avoid damage and
deformation.
• Correct blasting direction: The blasting direction
should be perpendicular to the surface to ensure
even removal.
• Keep your distance: The distance between the
blasting nozzle and the surface should be kept con-
stant to avoid damage.
• Disposal of the blasting material: Sand released
during blasting may contain pollutants and should
therefore be disposed of properly.
10.9 Releasing the pressure (Fig. 12, 13)
1. After the work process, first close the blasting ma-
terial shut-off valve (12) so that no blasting material
remains in the lines.
2. Close the main supply line shut-off valve (17).
3. Switch the compressor off.
4. Keep the lever (6) on the blasting gun (8) pressed
until all the air has escaped from the lines.
5. Slowly open the seal (4) by turning it anti-clock-
wise until the pressure relief holes are visible. This
allows the remaining pressure to escape from the
container.
NOTE! If you notice air escaping when opening the
seal (4), wait until the pressure is completely released
before opening the seal (4) completely.
10.10 Disconnecting the compressed air supply
(Fig. 14)
1. Close the main supply line shut-off valve (17).
2. Switch the compressor off.
3. Disconnect the compressed air hose from the
compressed air connection (16).
10.11 Use of the drain plug (5a) (Fig. 14)
The drain plug is used to empty the blasting material
tank quickly and conveniently. Regular emptying after
work prevents the abrasive in the tank from clump-
ing together or binding moisture. The drain plug also
makes it easier to change the abrasive.
1. Switch off the compressor and carefully open the
pressure release valve until the pressure gauge on
the sandblasting unit indicates "0 bar". Make sure
that there is no residual pressure in the unit (see
10.9).
2. Place the supplied open-end spanner AF27 (C) on
the drain plug (5a). Slowly turn them anti-clockwise.
3. Position a collection bucket directly below the
drain opening. Allow the abrasive to run out com-
pletely.
4. Tilt the product slightly forwards or to the side to
loosen any remaining residue. If necessary, shake
the tank gently to loosen any jammed particles.
5. After draining, turn the drain plug (5a) firmly clock-
wise again. Ensure a tight fit to prevent subse-
quent pressure loss.
6. Note: Clean the drain plug (5a) regularly to remove
abrasive dust.

11. Cleaning

m Attention!
Depressurise the product before carrying out any
cleaning or maintenance work! Danger of injury!
• Wipe the product with a clean cloth.
• We recommend that you clean the product directly
after every use.
• Clean the product at regular intervals using a damp
cloth and a little soft soap. Do not use any cleaning
products or solvents; they could attack the plastic
parts of the product. Make sure that no water can
penetrate the interior of the product. Water penetra-
tion increases the risk of rust formation in the product.
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