User Guide

11
To preserve the value of the mixer and increase its service
life, handle it as described in "Transport and storage".
Furthermore, the concrete mixer should be checked regularly
for signs of wear and tear or functional deficiencies. This
applies especially to moving parts, screw connections,
protective devices and electrical parts.
Repair
Pull plug each time before doing
repair work.
• Switch off machine and pull plug if repair work should be
necessary. Do not start machine during repair work.
• Protective devices removed for repairs must be properly
remounted before starting the machine.
• Only the manufacturer or companies authorised by the
manufacturer may perform repair work on electrical parts
or on parts which affect the space needed to mount
electrical equipment.
• Use only unaltered original spare parts. Otherwise, the
manufacturer will assume no liability.
Guarantee
* We undertake a 2 year guarantee, starting from ex-stock
delivery of the equipment by the dealer. This warranty
covers faults which are caused by defective materials or
production.
* The dated invoice counts as evidence for guarantee
claims.
* Warranty claims, even during the warranty period, will not
be accepted for damages due to incorrect handling or
inadequate packaging during return of the devices or to a
non-observance of the operating instructions.
* We shall attend to any necessary warranty work. Our
express approval is required if another company is
intended to eliminate the damage.
* The guarantee does not cover normal wear to bevel gear,
ring gear segments, driving belt, ball-bearing, mixing
drum, impellers, as well as the respectively associated
fasteners
* Defective parts must be sent to our plant carriage paid or
postage paid. We reserve the right to decide whether to
provide spare parts free of charge.
* The guarantee only applies if original spare parts are
used.
* We reserve the right to make alterations on the grounds
of technical advances.
Equipment failures
Malfunction Possible cause Remedy
Motor does not start up
⇒ no mains voltage
⇒ defective cable
⇒ check fuse protection
⇒ have checked or replaced (electrician)
⇒ thermostat is triggered « reason:
- motor overload
- motor not getting enough air owing to
clogged ventilation apertures
⇒ allow motor to cool and then find and
eliminate whatever caused the thermostat to
respond
Motor hums but does not
start up
⇒ blocked crown gear
⇒ defective condenser
⇒ switch off machine, pull plug and clean or
replace the crown gear segments
⇒ send machine to manufacturer or a company
designated by the manufacturer for repairs
Machine starts up, but
becomes blocked at low
load and may switch off
automatically
⇒ extension cord is too long or its cross-section
is too small
⇒ socket is too far from mains connection and
the connecting wire's cross section is too
small
⇒ extension cord must be at least 1.5 mm² for a
maximum length of 25 m; the cross-section
of longer cables must be at least 2.5 mm²