Operation
13
the steel plate. There will be a hot zone on the blasted surface where the machine has developed the highest blast intensity. The zone is nor
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mally a little lighter and warmer than the rest of the blast cleaned area. Adjust the control cage until the hot zone is exactly in the middle of the
blast pattern.
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If the blast result shows strong blasting on the operator’s right side and weak blasting on the left side (shadows), turn the upper edge of
the control cage clockwise 3/32-5/32” (2-4 mm).
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If the blast result shows strong blasting on the operator’s left side, and weak blasting on the right side, turn the upper edge of the control
cage counterclockwise 3/32-5/32” (2-4 mm).
Make adjustments until the hot zone is in the middle of the blast pattern (Figure 16). Only make adjustments while the machine is turned off.
ADJUSTING MAGNETS AND SEALS (FIGURE 17)
The adjusted height of the magnetic seals, parallel to the surface to be treated, should be set equal at about 8 mm. For the height adjustment, a
1/4-5/16” (6-8 mm) stainless steel strip (C) is shifted below the magnetic sealing.
Adjust the height with the setting screws until the correct distance of 5/16-1/2” (8-12 mm)has been set. There are four screws, one at each of
the rear wheels (S1) and two on the inner side of the front wheel bracket (S2).
The height of the brush seals should be a max. of 1/8” (3 mm) above the surface. The adjustment is possible within the slots of the seal ele
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ments. The setting depends on the structure of the surface; in general, the rougher the surface, the lower the setting.
STORAGE
After each use, remove abrasive from hopper. Pull out the wire mesh tray and discard all materials.
If storing for longer than three months, complete the following:
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Turn off the machine.
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Remove all abrasive from the machine.
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Remove all abrasive from magnets.
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Clean and cover the machine.
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Motors, cables, and plugs need to be protected against moisture, dust, and shock.
MAINTENANCE SCHEDULE
Operating Hours
Inspection and Maintenance
12 hours after repairs
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Check function of all safety devices.
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Check tightness on all accessible screw connections.
Every 3 hours
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Check whether there is any foreign matter in the hopper, the feed spout, or in the blast wheel unit.
Daily, prior to operation
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Check the hose connections for tightness.
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Check the hose to the filter for damages.
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Make sure that the dust collector has been emptied.
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Check blast wheel, feed spout, liners, and fasteners for wear or damage.
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Check the separator parts for wear and defects.
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Check the level of abrasive in the storage hopper. Fill to bottom of wire mesh if necessary.
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Check the magnetic and seals for wear; replace if necessary.
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Check the electrical connections, motor, and separator for sediment or foreign bodies.
Yearly
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Fully overhaul and clean the machine.
