Imer Group 1106007, Operating, Maintenance, Spare Parts Manual

Page: 30 / 74

30
IMER INTERNATIONAL S.p.A.
KOINE 3
INCONVENIENTI CAUSE RIMEDI
Machine does not start Water
Water pressure too low: the gauge shows pressure below 2 bar
(green lamp on?), the display shows the text H
2
O
- Check that water is delivered from the supply
hose
- Check that the water filter is clean
- Check that the water pump is switched on
- If the pump collects from a tank, check that it has
been primed and there are
no leaks from couplings
Machine does not start Material
- Product too dry in mixing chamber
(mortar pump seized? red lamp on?)
- Initial start-up not performed correctly (see
para.11)
- Water flow rate setting too low (see para.11)
- No water delivered to mixing chamber
(water inlet obstructed, water solenoid valve
malfunction)
Machine does not start Grid
-Grid not inserted completely, the display shows the text Bloc
-Check that the grid is positioned correctly
Machine does not start Air
- The air pressure, with jet valve completely open, does not fall
below the minimum pressure value on the machine pressure switch
(table 1)
- Check that the air hose is not bent or obstructe-
do
- Check that the jet nozzle is perfectly clean
Machine does not start
and compressor does
not start and the blue
light is OFF
Electrical current
- No current delivered to connector of site panel
(fuses?)
- No power delivered to machine
(defective connector connection? loose cable?)
- Main switch not ON
- Check points listed alongside
Machine does not start
but compressor starts
Electrical current
- Start selector switch not in correct position
- Mixing chamber open
(start/stop pushbutton lamp on?)
- Mortar pump motor connector not inserted
(start/stop pushbutton lamp on?)
- Low water pressure switch trips on start-up
(water pump switched on ?see also "machine does not start due to
water)
- Check points listed alongside
Machine does not stop
and/or compressor
does not stop
Air
- Air hose defective
(hose cut? Air leaks from couplings?
- Compressor air supply low
- Jet air valve faulty (blocked in open position)
- Check the air hose and couplings in particular
and replace if necessary
- Check air filter (see para. 12)
- Check compressor relief valve
Machine stops after
starting up
Water
- Intake filter clogged
- Pressure reducer filter clogged
- Water hose too long and/or too narrow
- Water supply insufficient
- Check points listed alongside: clean filters,
check for adequate flow rate from the water hose
(at least 10-12 l/min if working with lime-cement
based plaster, at least 15-20 l/min with gypsum
based plasters) and replace hose if necessary or
collect water from an auxiliary tank