Adjustment; Checking The Machine Head Switch - Brother BAS-311H Service Manual

8. ADJUSTMENT

8. ADJUSTMENT
Maintenance and inspection of the sewing machine
should only be carried out by a qualified technician.
Ask your Brother dealer or a qualified electrician to
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 foot switch
is depressed by mistake, which may result in injury.
･
When carrying out inspection, adjustment and
maintenance.
･
When replacing consumable parts such as the
rotary hook.

8-1. Checking the machine head switch

85
CAUTION
Hold the machine head with both hands when tilting
it back or returning it to its original position.
Furthermore, after tilting back the machine head, do
not push the face plate side or the pulley side from
above, as this may cause the machine head to
topple over, which may result in personal injury or
damage to the machine.
If the power switch needs to be left on when carrying
out some adjustment, be extremely careful to
observe all safety precautions.
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.
Check that the machine head switch is turned on as
shown in the illustration.
NOTE:
If the machine head switch is not turned on, errors
"E050", "E051" and "E055" will be generated.
3238B
BAS-311H