By heat-treating the cutter housing and screen box the plastic can be melted away.
In order to be able to apply heat treatment, the cutter housing must be removed
from stand, hopper and enclosure.
This is work which can be carried out by Conair’s service department at the head
office.
A change of bearings is always necessary after heat treatment.
The granule bin, screen and screen box must be changed.
After dismantling the cutter housing the granule bin must be removed.
A granule bin filled with stiffened/hardened plastic can in most cases only be
removed by means of cutting treatment.
A granule bin filled with stiffened/hardened plastic cannot be heat-treated without
the fit changing.
These parts cannot be re-used after the heat treatment.
An alternative way of removing hardened plastic is by means of mechanical treat-
ment. Removing hardened/stiffened plastic mechanically is very time-consuming.
Furthermore, there is a big risk of damaging the rotor, knives, knife positions, sup-
port rules, cutter housing and screen.
Stoppage in blower
Look for and attend to the cause of the stoppage in the blower.
• Check there is no stoppage in the transport pipes, cyclone, dust filter and
collecting container.
Clean and empty transport pipes, cyclone, dust filter and collecting container.
• Check that the blower rotational direction is in accordance with the arrow on the
blower hood.
Stoppage in hopper
Look for and attend to the cause of the stoppage in the hopper.
• The hopper feed speed is too high or pieces too large.
Clean the hopper and lower the feed speed.
• The cutter housing is overfilled.
Look for and attend to the cause of the overfilling in the cutter housing – see
previous section.
Stoppage in material conveyance system
Look for and attend to the cause of the stoppage in the material conveyance
system.
• Overfilling or stoppage in the granule bin, transport pipes, cyclone, dust filter or
collecting container.
Clean and empty transport pipes, cyclone, dust filter and collecting container.
NOTE:
The blower blows even
if the rotational direction is
wrong, but capacity will be
less than 25%.
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l O p e r a t i o n a n d D a i l y M a i n t e n a n c e