4
5
104 72 57-26
104 72 57-26
Directions for use
These service instructions are intended to be used by service workshop personnel, or by
salesmen who carry out servicing their own districts. They assume a thorough knowledge
of the handling of precision appliances and accessibility to service tools.
The manual is divided into two sections and covers all service operations and checks
which should be carried out when making a complete overhaul of a sewing machine.
The first section deals with the various settings which must be maintained to ensure that
the machine functions satisfactorily.
The second section covers dismantling and mounting instructions.
The diagrams only give indication as to where the detail or mechanism is located in
the machine. For more detailed information regarding the construction, etc., refer to
the diagrams in the spare parts list.
ESD
ATTENTION!
It is of the utmost importance that precautions are being taken in order to avoid damage
of the electronics by electro static discharges ESD (=Electro Static Discharge). To avoid
that these errors arise it is important to handle loose circuit boards in a controlled way.
Always use wrist band 412 23 02-01 when servicing.