Adjustments; Actuator Position - Brother Z-8550A Service Manual

9. ADJUSTMENTS

9. ADJUSTMENTS
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 at the following times.
The machine may operate if the treadle is depressed
by mistake, which could result in injury.
• When carrying out inspection, adjustment and
maintenance
• When replacing consumable parts such as the
rotary hook and knives
If the power switch and air need to be left on when
carrying out some adjustment, be extremely careful
to observe all safety precautions.

9-1. Actuator position

<Rear side>
67
CAUTION
Use both hands to hold the machine head when
tilting it back or returning it to its original position.
If only one hand is used, the weight of the machine
head may cause your hand to slip, and your hand
may get caught.
Do not touch the face plate knives when opening the
thread take-up guard cover.
If they are touched, injury may result.
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.
When removing the needle plate, auxiliary needle
plate and knife unit, use a screwdriver that matches
the size of the screw heads.
If a screwdriver that does not match the size of the
screw heads is used, it may damage the screw
heads and result in injury to the operator or damage
to the articles being sewn.
The installation position of the actuator (1) can be adjusted
3506M
as shown in the illustration.
Adjust so that it is in a position where it is easy to operate.
NOTE:
If using a thread wiper device (option), adjust the position
of the actuator (1) within the range of (A) so that it does
not touch the thread wiper.
1. Loosen the two screws (2).
2. Move the switch installation plate (3) to move the actuator
(1) to the desired position.
3. Tighten the two screws (2).
3507M
Z-8550A, 8560A