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Foreword
This service and repair manual is designed to help you carry out all repairs on the machine quickly and
correctly.
Adjustments should only be made if the settings deviate from the requirements described here.
When checking or adjusting a machine, always proceed in the order described here.
For easy reference every workstep is marked with a dot. Differing worksteps are marked with a circle or
square.
The indications "right", "left", "top", "bottom", "front" and "back" always refer to the upright machine with
the controls facing the operator.
When assembling dismantled machines, set the machine to approximately the right settings. This makes
any subsequent fine adjustment much easier.
Unless otherwise specified, the handwheel must always be turned to the front.
When carrying out maintenance work or when replacing mechanical parts or accessories the machine is
to be separated from the power supply by unplugging the mains plug.
An electrical safety test must be carried out following repair work, including mechanical repairs.
According to the German Machine Safety Act of 24.06.1958, VDE regulations are the recognized rules
in the field of electrical engineering and form the basis for electrical safety tests of technical appliances.
The required electrical tests for appliances are contained within the regulations for the repair, modifica-
tion and testing of used electrical appliances (VDE 0701, edition 9.71), laid out in paragraph 3.
It is obligatory to test our electrical appliances according to VDE 0701 following any repairs to our elec-
trical appliances.
Outside Germany similar regulations apply which are on the whole identical to the requirements
of VDE 0701.
Please also observe sections 40 to 42 of the adjustment and repair instructions.
Therefore a specialist must always be consulted when carrying out repairs on electrical appliances.
The microswitch must always be functionally tested following all repair work.
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