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4. Before operation
Before using the machine it is of great importance to inspect the machine.
It is not permitted to use the machine if the machine safety is not according the checkpoints below.
4.1
Daily check points power supply
Use only extension cables for extending the main cable that are sized and marked in accordance with
the overall power consumption of the machine.
Electrical cables must be fully unwind of their reels.
No damage is permitted for electrical cables.
Use an electrical power supply connection with earth connecting.
The main switch of the machine should be put to ‘Off’ before connecting to the power supply.
Make sure the power supply is in accordance with the machine specifications.
The circuit breaker of the power supply must have a ‘’D’’ characteristic. Circuit breakers with a “C” or
“B” characteristic can give problems when switching the machine on.
If the machine is to be operated using power from a generator, the generator must be operated in
accordance with the current legal regulations and directives in force. (this applies to the protective
earth conductor in particular) in order to ensure that all safety devices are functioning and to eliminate
possible damage to electrical components.
4.2
Daily check points of machine
Safety functions and operating functions must work correct.
Check all screws and other fasteners for tightness. No loose bolts and/or nuts are permitted.
Check the electrical components, cables and connections for wear and/or damages.
Dust hose connection must be reliable: use hose clamps and industrial tape.
Dust hoses must be undamaged and free of obstructions.
Make sure that the bag or dustbin of the dustcollector is empty and connected properly.
Check the following parts for damage and wear: blast wheel, cage, blast housing, mouth seal, spreader
beam and all other hoisting equipment. Replace the parts when you can see obvious signs of wear.
Wear grooves on the blastwheel are acceptable until 75% of blade thickness has been worn away.
Check de parts of the valve on wear and defects. Remove foreign bodies and dust deposits to prevent
clogging of the machine.
Th
e “Filling hatch” and “Inspection hatch”
must be closed to keep the vacuum in the machine. (Position
6 & 9 of machine description)
4.3
Check points on the hoisting and lifting equipment
Fill the machine with shot (max. 62 kg.) and adjust the turnbuckles so the machine is evenly leveled
when lifted with the spreader beam. Lock the position of the turnbuckles with the locking nuts.
Inspect the cables, rigging, chains, turnbuckles, winch motors and all other hoisting equipment for
damages before every use.
All hoisting and lifting equipment has to be inspected by a certified expert.
Comply with the local regulations regarding the frequency of the inspections (e.g. annually, half-
yearly, quarterly etc.)
After inspection / repairs the enclosed Maintenance Log at the front of the manual has to be filled in.
