Advertisement
BERNINA
Part
Description
Sewing/
When switching from
Darning
sewing to daring (dropping
Mechanism
the feed dog) the feed dog
should rise on lower.
Free Hand
The system raises and
System (FHS)
lowers the presser foot. With
the presser foot lifter lever in
the up position it releases the
lifter lever.
The top tension is released.
With late Models 930 the
feed dog drops as well.
The shaft in the base plate is
play free and the knee lifter
lever is held securely inside
that shaft.
For the use by Authorized BERNINA Dealers Only
Service Procedure 700-900.doc
Servicing Procedure for Series 700-900
Possible
Repair
Malfunction
Instructions
• Feeding problem
Clean, oil, adjust
• Feed dog can't be
lowered
• Hand lifter lever
• Eliminate play in
cannot be lowered
• Presser foot cannot
• Replace knee lever
be lifted
• Knee lifter lever
hangs loose.
• Replace tension
• Knee lifter is not held
securely in the
machine.
• Feed dog does not
lower. (Late Model
• Clean, lubricate
930 only)
Page 9/32
Picture
INSTRUCT10N IN
PART 2.13
the lifter shaft.
if the lever does
not stay in shaft
securely.
spring behind
motor if lever
hangs loose.
(Model 830)
and adjust drop
mechanism (Model
930) check the
distance of 38mm
between the collar
and the coupling
half.
2003 Bernina of America Inc
Last Revised 5/11/2005
Advertisement
