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6. Maintenance
Maintenance work that goes beyond the scope described in this manual must only be performed by qualified
Blastrac technicians.
Pay attention to Chapter 3
"Safety"
during maintenance and repair works.
Failures due to inadequate or incorrect maintenance may generate very
high repair costs
and long standstill
periods of the dust collector.
Regular
maintenance
therefore is imperative.
Operational safety and service life of the dust collector depend, among other things, on proper maintenance.
The following table shows recommendations about time, inspection and maintenance with normal use of the
machine.
Operating hours/
time period
Inspection points, maintenance instructions
After repairing
Check the efficiency of all safety devices.
Check whether all machine parts are assembled safely and correctly.
12 h after repairing
Check all accessible screw connections and other fasteners for tightness.
Daily and prior to
starting work
Check all safety devices working adequate.
Check the function of the residual current operated device.
Check the hoses for leaks, damages and wear.
Check the hose connections for tightness and fixed seat.
Check the electric connections and motors for sediments of dirt, foreign bodies
and other contaminants.
Check the blast wheels, blades, impellers, control cages, feed spouts, liners and
fasteners for damages and wear.
Check the magnetic, rubber and brush seals for wear.
Check the separator parts for wear and defects.
Check and empty the separator trays.
Check the grid valves on damages and test if they are functioning correctly.
During operation
Watch the level and mixture of abrasive in the blast cleaning machine every hour.
The mixture should be nearly clean.
Weekly
Check the belt tension of the blast motors.
Check the bearing seals for damage and wear.
Every 3 months
Check the chain tension of the drive wheel.
Check and clean the parts of the drive wheel.
Inspect all welding on the machine for cracks.
Annually
Full overhaul and cleaning of the complete machine.
The time indications are based on uninterrupted operation. When the indicated number of working hours is not
achieved during the corresponding period, the period can be extended. However a full overhaul and a technical
inspection must be carried out at least once a year, consisting of inspection of filters for damage, air tightness
of the machine and proper function of the control mechanism. This technical inspection shall be carried out by
the manufacturer or an instructed person.
