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remain unchanged.
7. MECHANICAL SAFETY
All hazardous areas of the IMER concrete mixer are protected by
safety guards, which must be kept in perfect condition and in place
(e.g. the cooling fan grill on the electric motor).
8. TRANSPORT
- Warning. Always disconnect the power supply and
empty the mixing drum before moving the mixer.
To transport the machine, hold the support leg and tipping handle
and move as shown in Fig. 4.
For other types of movement, lift the mixer using a two-wire sling
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9. INSTALLATION
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from sinking into the ground or to prevent the mixer from
overturning during operation.
During installation of the mixer, ensure that a wheelbarrow can be
easily placed under the mixing drum when discharging.
10. ELECTRICAL CONNECTION
- Check that the power supply voltage and frequency
are as stated on the electric motor data plate, with full load.
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(a thermal-magnetic circuit-breaker) and indirect contact protection
(a residual current type circuit-breaker, for example).
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rent and cable length into account, in order to avoid risk of voltage
drops (ref. table 3)
Do not use extension cables looped around the drum.
The power lead must be the type suitable for frequent movement,
with abrasion-resistant sheathing (for example HO7RN-F).
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1). Tighten the ring nut to secure the current supply plug and
provide IP67 protection.
- The concrete mixer is now ready for operation.
11. STARTING UP.
Before connecting the cement mixer to the power supply, check
that all the safety devices are in place and working properly, that
the power supply cable is in good condition and that the plugs and
sockets (of the waterproof type) are not wet.
Connect the power supply cable to the electric panel plug. Turn
on the concrete mixer using the switch located on the electric
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one switches on the machine, while the red one switches it off.
The switch has minimum voltage protection: after a power failure
or accidental power loss, push the green start button to start the
machine up again.
In case of an emergency, stop the machine by pressing the red
stop button (extended), then disconnect the plug from the power
supply socket.
THERMAL PROTECTION:
- The electric motor is protected from overloads by a
thermal sensor: if overheating occurs, the motor stops. Let
the motor cool down before attempting to start it up again.
12. USE
- Do not introduce parts of body and/or tools inside the
mixer drum while it is running.
Insert materials while the drum is turning.
Before beginning to load the materials inside the drum, it is best to
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various materials to be mixed alternately, in the amounts required
for the type of mix to be obtained, so as to reduce the mixing time
to a minimum.
Keep the drum running until a smooth mix having the desired
consistency is obtained.
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(mouth of the drum up) and a discharge position (mouth of the
drum down).
All drum movement operations are controlled by the tipping lever.
Thanks to its particular balanced design, the MINIBETA can mix
and discharge at any angle between 0 ºand 360º.
- Do not start the machine fully loaded.
IMER INTERNATIONAL S.p.A.
MINIBETA
13. MAINTENANCE
ced personnel, after having shut down the motor, discon-
nected power supply and emptied the mixing drum.
Every two working months, check the following:
- tightening of the screws securing the drum onto the gear unit;
- Clean the ventilation slots of the electric motor to remove dirt
and rubbish,
Check on a weekly basis that the contacts of the plug and socket
connector on the electrical panel are clean, dry and free of rust.
13.1 CLEANING
After each daily work session or before long periods of inactivity,
the mixing drum must be cleaned thoroughly both inside and
outside.
operations.
always replace them correctly at the end of the cleaning
operation.
When using a hose for cleaning, do not direct the spray into the
plug-switch unit.
13.2 CLEANING INSTRUCTIONS
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. The inside of the drum can be cleaned better if, at the end
of the work session or before a prolonged period of inactivity, the
drum is rotated with a few shovel-fulls of gravel and water. This
will prevent any residue of cement or concrete from hardening.
The mixing drum must not be struck with hard objects such as
hammers or shovels, etc. A dented drum will reduce the mixing
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13.3 REPAIRS
ried out.
Repairs to electrical systems must be carried out exclusively by
specialist staff.
Original IMER spare parts only must be used and must not
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operations, they must be correctly replaced when repairs
are completed.
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.
be treated as such.
are legible.
14. TROUBLESHOOTING
8
- All maintenance operations must be done by experien-
- Do not start the mixer while carrying out cleaning
- If the protection guards are removed for cleaning,
- Do not start up the mixer while repairs are being car-
- If the protection guards are removed during repair
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- Always ensure that any writing or signs on the machine
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