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The ON/OFF switch
• Toswitchonthetool,pressandholdtheon/
offswitch(1).
• Ifyoureleasetheon/offswitch,thetoolwill
be switched off.
7. ELECTRONIC MOTOR
CONTROL
7.1 Starting current limiting
The electronically controlled smooth start takes
care that the machine starts without jerk. In this
manner, the splashing of thin liquid materials
is prevent at the same time when switching on
the machine.
As a result of the machine’s reduced starting
current, a 16 A fuse is sufficient.
7.2 No load speed reduction
The electronic control reduces the no-load
speed of the machine which results in reduced
noise and wear of motor and gear.
7.3 Speed pre-selection
With the speed control (2) the speed can be
continuously pre-selected: the necessary speed
is dependent on the type of material to be
mixed. It is recommended that it be confirmed
with a practical trial.
7.4 Constant electronics
The constant electronics keeps the speed bet-
ween no-load and load nearly constant and
ensures uniform mixing of the materials.
7.5 Electronic overload protection
In case that the machine is extremely overloa-
ded, an electronic overload protection protects
the motor from damage. In this case, the motor
stops and restarts only after the feeding pres-
sure is reduced.
7.6 Temperature-dependant overload
protection
To protect the motor from overheating at
extreme permanent load, it is switched off by
the protective electronic system when a critical
temperature is reached.
After a cooling-down period of approx. 3 - 5
min., de machine is again ready for use and can
be fully loaded.
When the machine is warmed by use, the tem-
perature-dependent overload protection reacts
earlier as a result.
8. SERVICE & MAINTENANCE
8.1 Maintenance
Make sure that the plug is removed
from the mains when carrying out
maintenance work on the motor.
The machines have been designed to operate
over a long period of time with a minimum of
maintenance. Continuous satisfactory opera-
tion depends upon proper machine care and
regular cleaning.
• The ventilating slots on the motor casing
should be cleaned out from time to time.
• Whenthecarbon brushesare wornout,the
machine switches itself off. The machine
must then be sent to customer service for
maintenance.
• After100hours:checkcarbonbrushes
• After200hours:renewthegreasefillingin
the gearbox
To verify the protective insulation
remains intact, the machine must be
subjected to a technical safety test
afterwards. For this reason, this main-
tenance must be performed exclusi-
vely by a professional electro-work-
shop.
