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12. OPERATION
- The tank hatch safety grill must always be present and
integral, with the safety valve lever closed.
Do not put anything other than material for making the
the hopper.
- Wear the required personal protection equipment
before starting work
- During work the pipes move: suitably secure and
protect them from sharp edges, abrasive surfaces or pointed
objects that can damage them.
The correct position of the tank/manifold air adjustment ball valve
As indicated in the previous section, start with the lever positioned
between half and full air to the manifold and check the operating
If the pressure tends to exceed 5.5 bar, turn the lever towards air
sition of the lever with a given compressor, for a certain mix and for
conditions change.
If the pipes appear to move too much, try adjusting a little more air
to the manifold.
At the end of the pumping cycle, delivery of air to the tanks and
manifold is stopped, the indicator light at the START button goes
off, the compressor goes to min. speed (version 5200 Nl/min) and
Wait until it falls to 0 bar before opening the safety ball valve on the
hatch.
- Before opening the safety ball valve on the hatch cover
make sure no one else except the operator is standing within
at least 2 metres of the machine. The operator must be on the
operating side, i.e. the opposite side to the delivery manifold.
Wait until the residual pressure inside the tank is completely
discharged, then open the hatch.
A new cycle can now be carried out.
Avoid stops of more than 30-60 min.
- Do not move the machine with the tank or bucket full.
If a compressor anomaly occurs during work, promptly wash the
machine and pipes.
If clogging occurs during pumping - the pressure gauge constantly
position b) and stop the mixer. Open the safety ball valve gradually
more air is discharged from the tank, then close it.
Turn the air adjustment lever all the way towards the manifold,
restart the mixer and turn the ball valve to SCREED PUMP
Press the start button again.
If clogging persists, i.e. if the pressure does not gradually fall below
where the pipe is clogged.
At those places the pipe is particularly hard and rigid.
Shake and strike the pipe with a mallet to unclog it.
- This operation must be carried out by a skilled and
specially trained person, aware of the hazards involved in the
use of pressurised equipment - machine+pipes.
Disconnect the pipes or jet breaker stand only when absolu-
tely certain that there is no residual pressure inside the tank
no more air being discharged, the pressure gauge must
indicate 0 bar and the pipes must be soft along their entire
length.
IMER INTERNATIONAL S.p.A.
Turn the air delivery adjustment ball valve gradually towards the
If clogged repeat the operation, make sure there are no obstruc-
tions where the air is injected in the manifold, make sure the sand
is washed and in pumpable grain size, adjust the amount of water
if necessary.
13. MACHINE STOPPING AND CLEANING
At the end of work, stop the machine after the last pumping cycle.
Make sure there is no residual pressure inside the tank or pipes,
checking that the pressure gauge indicates 0 bar and the pipes
are soft along their entire length.
Open the safety ball valve on the hatch, release the grill safety ball
valve and open the hatch grill
Disconnect the pipes from the material delivery manifold.
delivery manifold with the machine working.
Carefully wash the inside and outside of the machine with a jet of
water. Remove all remaining sand from the tank.
Make sure the two delivery manifold and tank air inlet points are
perfectly clean.
-
tends to become dirty and gradually blocked during work,
with the possibility of the machine not automatically stopping
at the end of cycle. Early wear of the delivery manifold.
ball valve on the hatch is perfectly clean.
If the pressure water cleaner is present, after connecting the suc-
tion pipes to the water system - do not suck water from a drum
- and the delivery pipes with the lance supplied to the connection
on the machine.
Start the pump by means of the distributor lever and begin the
washing operations.
Make sure not to accidentally operate the pressure water
cleaner control lever during work: by turning empty it will
quickly become permanently damaged.
yourself. Never direct the water jet towards the electrical
panel or other delicate parts of the machine. Do not use the
pressure water cleaner to wash inside the compressor.
Insert one or two washing sponges in the material delivery pipe
and in the union the delivery manifold is connected to; connect it
to the manifold, pour a few buckets of water in the tank and do a
normal pumping cycle.
Repeat the operation if the pipes are not perfectly clean.
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- Do not place tools or parts of the body in the material
- Keep the delivery manifold air inlet point clean, as it
- Make sure the entire pressure relief line of the safety
- Never direct the water jet at other persons or towards
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