or disconnect the power supply (electric motor versions).
- The electric motor is protected from thermal
overloads. If it overheats the mixer will stop. Allow the
motor to cool down before restarting.
5. MAINTENANCE
WARNING. .
Before carrying out any form of maintenance work,
always turn the mixer off (and unplug it from the power
supply in electric motor versions).
- Replace worn or faulty components using original spare parts.
Any repairs to the electrical system must be carried out by
qualified personnel. Only IMER original spare parts must be used
and must not be modified in any way.
Due to its particular construction features, the ROLLBETA does
not require frequent maintenance. However, it is advisable to
change the oil in the reduction gear with ISO VG 460 oil at 40°C
after 2000 hours of work.
Check that the contacts of the plug-switch unit are clean. Any
corrosion must be removed immediately.
- Used oil is classified as special waste by law and
must be treated as such.
- Always ensure that any writing or signs on the
machine are legible.
5.1 CLEANING
After each daily work session or before long periods of inactivity,
the mixer drum must be cleaned thoroughly both inside and
outside.
- Before cleaning the mixer, always switch off the
motor and disconnect the plug from the motor (even when
using brooms, rags, scrapers, etc.).
- Do not start the mixer while carrying out cleaning
operations.
When using a hose for cleaning, do not direct the jet onto the
plug-switch unit.
Clean the outside of the mixer with a brush and water. Scrape
off any cement or concrete deposits.
There should not be any deposits of cement or concrete inside
the drum.
To clean the inside of the drum at the end of work, put in a few
shovelfuls of gravel and water, then rotate the mixer. This will
prevent any residue of cement or concrete in the drum and on
the mixing paddles from hardening.
The mixing drum must not be struck with hard objects such as
hammers shovels, etc. A dented drum will reduce the mixing
effectiveness and make cleaning more difficult.
6. NOISE EMISSION LEVEL
In chart 2 are indicated the level of sonorous power measured
L
following the EN ISO 3744 and the level of sonorous pressure
WA
measured by the operator s ear L
TABLE 2
CONCRETE
TYPE OF MOTOR
MIXER
ROLLBETA
EL 220V 50HZ
IMER INTERNATIONAL S.p.A.
RB 130
.
pA
L
L
pA
WA
68 dB (A) 76 dB (A)
7. TROUBLESHOOTING
PROBLEM
-Not power in the
supply line
- The electric plug
and socket are not
connected properly.
- The cable from
the plug to the
electric panel is
broken.
- A wire has
become
The motor does
disconnected inside
not run when the
the panel.
switch is pressed.
- A wire has
become
disconnected on the
terminalboard.
- The switch is
faulty.
- The upstream
protection has
tripped.
8
CAUSE
REMEDY
- Check the line.
- Make a proper
connection.
- Replace the cable.
- Re-make the
connection.
- Re-make the
connection.
- Replace the
switch.
- Reset. If it will not
reset, have the
machine checked by
an electrician as
there may be a
safety fault.