Interruptions exceeding 30min should be avoided.
Prolonged shutdown can cause clogging in the material delivery
lines: in this case no material is delivered from the jet and the
pressure gauge (ref.3) indicates a higher pressure than the normal
working value.
Shut down the machine by means of the selector (ref.Q1) to "0",
and position the cell wheel switch (ref.Q11) to "0" .
Run the pump in the opposite direction for a few seconds by ope-
rating the selector switch (ref.Q5): the material pressure gauge
indicates 0 bar.
Locate the point of clogging in the hose and remove by tapping
the pipeline with a mallet.
- If necessary, disconnect the jet or open the pipeline
couplings, checking previously if any residual pressure is
present.
The material pressure gauge must indicate 0 bar and the
The personnel assigned for this task must be specially trained
in these procedures.
In the event of any doubt as to the presence of residual pres-
sure, never open the couplings.
Reconnect the pipelines and spray jet, set the main switch to the
correct position (the blue lamp illuminates) and restart the machine.
- Do not move the machine with the hopper full.
If the material delivered is alternately hard and soft this may indica-
te a worn pump. To replace the pump, proceed as follows: release
the handle on the left and open the mixing chamber. Insert the
tube wrench on the end of the mixer and unscrew until the screw
inside the stator is released. Close the mixing chamber, tilt and
lock in the lifted position, remove the material delivery manifold
To insert the screw in the stator, use the lubricant spray available
from IMER. Never use mineral oil or grease for screw assembly
as this may damage the stator. Avoid all types of benzene.
In the case of a power failure during operationclean the machine
and pipelines immediately (see para.13). Also disassemble the
pump, remove the screw from the stator and clean. On completion
reassemble all components.
IMER INTERNATIONAL S.p.A.
KOINE 35
13. MACHINE SHUTDOWN AND CLEANING
At the end of work, stop the cell wheel and continue pumping until
the material delivery pipelines are empty.
Stop the machine by means of the pushbutton(ref.Q5) and set the
main switch(ref.Q1) to 0.
Open the jet valve, detach the jet and clean thoroughly, cleaning
there is no residual pressure.
Disconnect the material pipelines from the delivery manifold.
Detach the quick connector with safety device (ref.14) and open
Remove the mixer and clean. Clean the mixing zone with a
the mixing chamber, turn the main switch to the work position
and then operate the start selector switch.Leave running for
5-10 seconds, until the mixing chamber is completely clean.
27
- Before disconnecting the jet or pipelines, ensure that