Contec 200 XL Betriebsanleitung Seite 33

adjUSTMenT and MaInTenanCe
3.2
3.3
f Remove the shot hose between the shot valve and the shot enter pipe (54) which is
clamped onto the blast wheel cover by means of two clamps (53).
f Loosen the clamps by turning the two nuts. The shot cage is located under the inlet
flange. On removing the shot enter pipe the shot cage turns freely.
f Above the centre of the cage window is a marking point (pin) which is helpful for orien-
tation.
f If the path has been blasted heavier on the left hand side compared to the right, turn
the cage anti – clockwise. Turn in a clockwise direction if the path is heavier on the right
hand side.
f Reconnect the shot enter pipe with the clamps, connect the shot hose and try a short
test run.
f Repeat the adjustment if necessary until the path is smooth, even and without variation.
Adjusting the height of the shotblaster
There are three adjustable screws for changing the height of the shotblaster. By changing
the height, the gap between the magnetic frame and the floor is adjusted. Basically, the
smaller the distance, the better (less wear & tear and loss of abrasive). A rough, uneven
floor, however, requires a greater distance from the machine than a smooth one.
The screw at the upper end of the level bolt tube under the control panel is responsible for
the adjustment in the front area. There are two screws on the rear suspension for adjusting
the height in the rear area.
f Loosen the lock nuts on the screws. The same effect applies to all screws: turning
clockwise lifts the machine, turning counterclockwise lowers the machine.
f The distance to the floor should be even at all points of the magnetic frame (83,86).
A distance between 5 mm and 10 mm will suit most floors.
f Rubber sealings (84,89) and brushes (85,90) are attached to the front and side strips of
the magnetic frame. The strips serve to additionally seal the blast opening. If the machi-
ne height setting is changed, the rubber sealings and brushes must be adapted accor-
dingly.
f Loosen the screws of the brush sealings that clamp the rubber strips and move them in
the required position. The rubber strips and brushes should always lie flat on the floor.
Wear & tear on the blast wheel and shot cage
The blast wheel (48) is a pure wear & tear part and must be checked regularly. We recom-
mend carrying out the first check after approximately 30 operating hours. The service life
of the wheel depends on how the machine is used.
For example a lot of wear & tear occurs when blasting soft concrete with a lot of surface
slurry. Concrete dust is a very aggressive substance and increases wear & tear enormous-
ly. This decreases when blasting steel or ceramic tiles. To give an accurate figure for the
lifetime of the wheel is therefore impossible. As a rough guide, this could be anywhere bet-
ween 30 and 100 hours.
f Take off the shot hose (No. 54) in between the shot valve and the shot enter pipe (52).
f Loosen the four nuts which secure the blast wheel cover (50) to the machine. Remove
the blast wheel cover carefully.
f Between the blast wheel cover and the blast chamber is a rubber sealing which may,
during the process of operation stick to both sides.
f Pay special attention not to tear or rip it. Failure to do so will result in damage to this
sealing.
Blast wheel with 5 blades (left) Shot cage (right)
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