Dimas MP 250 S Manuel D'utilisation Et D'entretien page 34

7 Installation
• THE CROWN WHEEL SUPPORT PLATE
For rough stone blocks or (light) concrete, us a
Corex type "embedded nut" crown wheel in dry
application.
Be careful of the length of the
screws. If they are lost, there is a
risk of damaging the wheel
• THE SEGMENT SUPPORT PLATE
• For all kinds of work. Instantly interchangeable
blocks, held by locking wedges.
• Place the magnesia block (A) on the plate (B)
so that the block's angular section is between
the wedge (C) and the edge of the plate.
Insert the block by pressing it while orienting
the wedge so that the block is held by
greatest support surface possible (see FIG.
3).
• The wedge is eccentric to enable thinner or
thicker blocks to be used.
A
C
FIG. 3
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FELT SUPPORT PLATE (SEE FIG. 4):
• FASTENING THE PLATES
B
• Clean the plate's supporting surface (A).
• Coat the felt (B) with "contact" adhesive.
• Coat the plate's supporting surface.
• Apply the felt to the surface and leave it to dry
for 5 hours.
We recommend that you use some kind of
weight to press down on the felt while it is
drying.
B
A
FIG. 4
Please refer to the section on installing the
crown wheel, the felt and the segments before
starting this operation (SECTION 7).
Fastening a plate (SEE FIG. 5):
• Place the plate on the floor.
• Position the spring on the plate around the
hub).
• Fit the polyester or rubber strip around the
plate.
• Ensure the guide and the plate are correctly
positioned while the plate is being fitted.
FIG. 5