Garant VENTURI VSV0 Notice D'instructions page 13

3. Connect the 7.2 mm hose coupling adaptor to the compressed air supply.
» The compressed air is now installed.
6.3. MOUNTING THE BACK-STOP DISC
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The purpose of the back-stop discs is the alignment of workpieces on the vacuum plate.
1. Undo the knurled nut.
2. Rotate the back-stop disc until it projects above the edge of the vacuum plate.
3. Tighten the knurled nut.
7. Operation
7.1. CLAMP THE WORKPIECE TOGETHER WITH THE ADAPTER MAT
CAUTION
Risk of injury due to a loose workpiece
Workpieces that come loose from the vacuum plate can cause injuries.
» Before starting to machine the workpiece, check that the workpiece is securely restrained.
» Machining forces must be less than the restraining forces.
» If the workpiece is subjected to higher forces, restrain it using back-stop discs.
» Arrange the back-stop discs to counteract the machining forces or feed movements.
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Lay the adapter mat between the workpiece and clamping face.
Use the adapter plate to cover the slits not covered by the workpiece.
Milled slots up to 1.5 mm deep in the adapter plate can be accepted without loss of vacuum.
The adapter mat can be re-used for workpieces with the same contour
ü There must be no burrs or unevennesses on the contact face of the workpiece.
ü Contact area between the vacuum plate and workpiece cleaned.
1. Place the adapter mat together with the workpiece to be clamped on the vacuum plate.
2. Use the adjustable back-stop discs to align the workpiece on the adapter mat.
3. Draw the workpiece contour on the adapter mat. Remove the workpiece.
4. Take the adapter mat off the vacuum plate and place it on a firm surface.
5. Use hole punches to punch holes in the adapter mat within the marked contour of the workpiece. Choose a hole dia-
meter larger than the width of the slits. Position the holes in alignment with the slits of the vacuum plate.
6. Place the adapter plate with punched holes on the vacuum plate.
7. Place the workpiece on the adapter mat in accordance with the contour outline.
8. Switch on the vacuum and clamp the workpiece.
» The optimum operating pressure for the Venturi vacuum pump is 4.0 bar.
9. Check that the workpiece is securely seated.
» The workpiece is now clamped.
7.2. CLAMP THE WORKPIECE TOGETHER WITH THE ADHESIVE FILM
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Adhesive film is thinner than adapter mats and due to its higher coefficient of friction achieves a higher adhesive force.
1. The procedure for clamping the workpiece is the same as for the adapter mat. See Clamp the workpiece together with
the adapter mat.
7.3. REMOVING THE WORKPIECE
1. Before removal of the workpiece, clean the vacuum plate under vacuum using an industrial vacuum cleaner.
2. After cleaning away all debris and chips, switch off the operating vacuum.
3. Remove the workpiece.
8. Maintenance
The vacuum plate is maintenance-free.
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