IMER STEP 120 Manual De Uso, Mantenimiento Y Repuestos página 40

CAUSE AND CORRECTIVE ACTION THREEPHASE
FAULT
Machine does not start,
compressor does not
start and the blue light
is OFF
Machine does not start,
compressor does not
start but the compres-
sor starts no signal on
display
The machine starts but
stops immediately
Introduce termal cutout
switch
Material flow to the gun
stops.
A red light illuminates on
the electrical panel
The machine stops du-
ring operation
The compressor starts up
repeatedly although the
air tap put on the spray
jet is closed
The machine is turned on,
the compressor starts but
the screw doesn't turn
IMER INTERNATIONAL S.p.A.
STEP 120
CAUSE
Electric current
- No current delivered to connector of site panel
(fuses)?
- No power delivered to machine
(defective connector connection? loose cable?)
- Main swiitch not turned on
- It miss a phase
Electric current
(blu lamp on=main switch in correct position?)
-Operating selector not in start position
-Hopper grid missing or not properly mounted
-Plug not inserted correctly in socket
-Remote control connected?
-Spray jet nozzle dirty or clogged
-Supply voltage too high (over 250V)
Material
- Material binding properties low
(mortar pump seized?)
- Material too dry
Clogging
- Material hose clogged
- Spray jet clogged
- Low level of binder in mix
- Sand not suitable for mix
The following texts appear on display
-Material pressure of friction on screw too high
-Inverter temperature too high
-Motor temperature too high
-Inverter module current too high
-System overload
-Supply voltage too low
-Perforated tube
-Coupling leakage
-The air spray outlet is obstructed
-Air hose bended
- Check point listed alongside
- Check point listed alongside
-Start unit up from remote control
-Clean nozzle with special cleaner
-Empty the hopper, ensure that the screw
is not blocked. when the machine is clean,
restart with liquid cement taking care to mix the
solution with at least 400/500 kg of binder per
cubic metre:
- Bring the density of the material equal to that
of a plastering mortar by adding water
- Work with lower flow rates
- Remove obstruction
- Connection to compressor detached
- Bodies in mix with too large section
- Use sand with constantly optimal particle size
curve.
-Reduce flow rate before restarting
-Low level of binder in mix, add cement or lime
-Sand not perfectly suitable for pumping;correct
-Pipeline length excessive;reduce
-Wait for the motor to cool sufficiently before
restarting
-Check the power line
-Wait for the motor to cool sufficiently before
restarting
-Probable external short circuit
-Pump seized
-Check that the power voltage is between 210
and 230V with the machine running and that
the cables are correctly sized, and that there
is no other equipment (cranes, hoists, saws,
cement mixers etc..) connected to the same
power line
-Replace the gaskets
-Seal the couplings
-Replace the air tap of the spray jet
-Lean nozzle with special cleaner
-To rectifie
40
CORRECTIVE ACTION