Impacts STREAMER S320RD, Operating Manual

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S320RD Operating Manual
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7.3 Maintenance
As already mentioned in Chapter 5 “Initial operation,” we recommend you make your first repair
work on the machine with the help of an IMPACTS personnel. Using this recommendation, your
maintenance personnel will have the opportunity to get an extensive training.
Only those repair works are described which occur within the context of maintenance or which are
required to replace wear parts.
If you replace parts yourself for specific reasons, the following instructions and work
sequence have to be observed:
• You should stock all spare or wear parts that cannot be supplied quickly. As a rule, production
standstill periods are more expensive than the cost for the corresponding spare part.
• Screws that have been removed must be replaced with those of the same quality (strength,
material) and design.
Prior to any repair work on the machine and its drives, secure the machine against
unintentional switching-on. Pull out the key from the ignition/starter switch in order to do
this. Store the key in a safe place to find again and avoid accidents.
7.4 The Blast Pattern
Abrasive leaving the blast wheel blades is not thrown in all directions. Scatter is restricted to an
angle of about 50°. This is achieved through the use of a control cage which surrounds the impeller.
The position of the window in the control cage determines the direction and HOT ZONE of the blast
pattern.
Correct adjustment of the control cage and thus of the blast pattern is the most important factor for
optimum working with the S320RD blast-machine.
Incorrect adjustment of the control cage results in very high wear and premature blasting-through
of the liners in the blast wheel housing, as well as reduced blasting performance and a possible
loss of the rebound energy of the abrasive.
Each time the Wheel Kit cage is replaced, the thread of the blast wheel fastening screw should be
checked. Make sure that this screw is tightened correctly. In addition, absolute care must be taken
to clean the thread from dust and abrasive.
After each blast wheel repair work switch on the engine and accelerate it to ca. 2400 min-1 (without
feeding abrasive) in order to find out whether the rotating parts turn freely and without vibration.
After that, the blast cleaning procedure can be continued.
The blast wheel motor is designed for a long service life. Damage to the blast wheel motor can be
detected by unusual noises or functional failure of the electric motor. In this case, notify our service
department.