4 Specific safety instructions and the symbols used
Unsafe practices and other important information are emphasised in this manual.
Warnings are emphasised by means of special signs.
Always read the manual before using the Mixer!
4.4
Basic safety measures during maintenance, repair and cleaning
The machine may only be maintained according to the safety instructions by qualified, authorised persons, who are familiar with
the operating instructions (and those for the sub-assemblies) and can work accordingly.
Before maintenance and repair work, switch off the main power supply switch and secure with a padlock. The person carrying
out the maintenance or repair work must keep the key to this lock.
When changing heavy machine parts, only use suitable and safe load handling devices and sling gear.
Before any maintenance and repair work, make sure that any parts of the machine which may be touched have cooled
down to room temperature.
Before any maintenance or repair work, make sure that unauthorised persons cannot access the work area. Attach or set up a
sign drawing attention to the maintenance or repair work in progress.
Observe the inspection and maintenance intervals specified in the operating instructions.
Observe the maintenance and repair instructions for sub-assemblies included in these operating instructions.
Dispose of environmentally hazardous lubricants, coolants or cleansing agents in a responsible manner.
NOTE!
After all the installation work has been completed, the movement of the drive shaft must be checked on the machine by rotating
it manually before the drive is switched on. Make sure the drive cannot be switched on accidentally.
NOTE!
The rotor shaft nut must be tightened by hand and then with a torque wrench (tightening torque approximately 30 Nm). It is also
advisable to lock the thread with a liquid thread lock, such as Loctite, for example.
NOTE!
Any work on the axial face seal must be done very carefully. The seals consist of a brittle material and are therefore sensitive
to shocks. Avoid impact.
The cleaning (CIP) of the powder mixer is carried out in combination with the cleaning of the tank or when cleaning the pipe
system of the entire installation. The funnel and the ball valve must be removed and replaced by the blind flange supplied. This
guarantees that no CIP fluid, such as soda lye or acid, for example, will leak out if the ball valve is opened accidentally.
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