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Operating manual 500HSH
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6. Maintenance
Changing the liners
Loose the bolts of the top liner cover and remove the cover and top liner.
Loosen the nuts of the side liners liners. Take them out of the housing.
To mount the liners, keep on the following sequence:
Replace all worn items.
Clean the liners and the inside of the blast housing thoroughly.
Re-assemble the machine in reverse order, using kit between the top liner and the
side liners, and between the top liner and the front and rear plates of the blast
housing.
Make sure that the top liner sits close at the edges of the side liners.
Changing the blast wheel blades and impeller
Remove the abrasive storage hopper.
Remove the cage clamps and cage.
Block the blastwheel and remove the central fixing bolt.
Remove the impeller using a wooden or brass drift.
Remove the top liner cover and remove the top liner using a screwdriver or a
crowbar.
Clean the blast wheel and the blades with air
Through the opening of the blast housing: use a wooden or brass drift to tap out
all six blades from the blast wheel towards the center of the blast wheel.
Use a new central fixing bolt when mounting new blast wheel blades.
Replace the blades with six new ones and re-assemble the machine in reverse
order. Note: blast wheel blades must be replaced as a set. Replacing only some of
the blades can cause imbalance of the blast wheel.
Clean the machine every day with air and non-aggressive materials. Never use a high
pressure water cleaner to clean the machine.
Store the cleaned machine in a dry room. Protect the hydraulic parts from moisture, heat
dust and shocks. Remove the abrasive out of the abrasive storage hopper.
All repair work has to be done by qualified Blastrac personnel, this guarantee a save and
reliable machine.
Any guarantee on the machine is expired when:
By not using original Blastrac spare parts and abrasive.
When repair work is not done by qualified Blastrac personnel.
When changes, add ons or conversions are undertaken without written permission
of Blastrac BV.