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5. STANDARD ADJUSTMENT MACHINE HEAD
Maintenance and inspection of the sewing
machine should only be carried out by a
qualified technician.
Ask your Brother dealer or a qualified electricianto
carry out any maintenance and inspection of
the electrical system.
Turn off the power switch and disconnect the
power cord from the wall outlet at the following
times, otherwise the machine may operate if
the start switch is pressed by mistake, which
could result in injury.
When carrying out inspection, adjustment
and maintenance
Disconnect the air hoses from the air supply
and wait for the needle on the pressure gauge
to drop to "0" before carrying out inspection,
adjustment and repair of any parts which use
the pneumatic equipment.
5-1. Tilting back the machine head
e
CAUTION
1. Remove the chain q from the machine head w.
w
2. Go to the left side of the work table and tilt the ma-
NOTE
q
35
5. STANDARD ADJUSTMENT (MACHINE HEAD)
If the power switch and air need to be left
onwhen carrying out some adjustment, be
extremely careful to observe all safety
precautions.
Use only the proper replacement parts as
specified by Brother.
If any safety devices have been removed,
be absolutely sure to re-install them to
their original positions and check that they
operate correctly before using the
machine.
Any problems in machine operation which
result from unauthorized modifications to
the machine will not be covered by the
warranty.
chine head back while holding it with both hands.
Turn off the power before carrying out this op-
eration.
Be careful when tilting back the machine head,
as the X-Y feed arm may drop down at this
time.
Be sure to have two people there when tilting
back the machine head and returning it to its
original position.
Check that the machine head fixing bolts have
been removed.
If the lower shaft module is e not loked, there
is the danger that the lower shaft module e
will rotate by itself, so make sure that the lower
shaft module e is locked.
BAS-705
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