Bernina 900 electronic - Electrical System and Motor Speed; Adjusting Motor Speed

Electrical section
Motor output, type 900 90
W (220 V)
Sewing light: 15 W
All type
900 electronic sewing machines
(and models) are provided
with an electronic
sewing speed regulator
The control electro-
nics system in incorporated
in the base
plate.
Adjusting motor speed
Connect
machine to power supply. Plug
in foot pedal cable
and actuate pedal
until motor starts.
It the speed is too
high or too low, correct in the
following
manner
Tilt
machine until thre electronics system
housing under the base plate is
accessib-
le, The trimmer
situated in the housing
can be adjusted
with a small screwdriver
(narrow blade).
Rotation
to the right (clockwise)~
Motor speed increases.
Rotation to the left (counterclockwise):
Subject to changes in
design from those
Motor speed decreases.
shown
in text and illustrations.
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