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Page 25
Needle Sensor Test
The Needle Sensor test will indicate whether the nee-
dle position sensor is functioning properly. Rotating the
handwheel should result in a “beep” for half of a stitch
cycle followed by no “beep” for the other half (Figure 29).
If you hear a constant beep or no beep at all for a full 360°
rotation of the handwheel, this indicates a failed test and
the machine should be inspected by your authorized Baby
Lock retailer.
Press the “Main” button to return to the “Main” menu
screen or the “Back” button to return to the “More”
menu screen.
Motor Speed Sensor Test
The “Speed” Sensor test can help you determine whether
or not there is a problem with the Baby Lock Tiara speed
sensor. Before performing this test, remove the bobbin
case and the top thread. Press the foot pedal so that the
machine will begin slowly rotating. The white box will
show a number that should stabilize at 100 if the sensor
is functioning properly. Release the foot pedal to stop the
ma chine (Figure 30).
Press the “Main” button to return to the “Main” menu
screen or the “Back” button to return to the “More” menu
screen.
Pedal Test
The “Pedal” test can help you determine if there is a prob-
lem with the Baby Lock Tiara foot pedal. As you slowly
depress the foot pedal a percent of depression will appear
in the white box. The foot pedal should be controllable
from 0 to 100% (Figure 31).
Press the “Main” button to return to the “Main” menu
screen or the “Back” button to return to the “More” menu
screen.
Figure 29
Solid beep for 1/3 of a stitch cycle,
no beep for the rest of the cycle.
Main
Diagnostics
Back
Needle Sensor Test
Rotate the handwheel.
Solid beep for 1/3 of a stitch cycle,
no beep for the rest of the cycle.
No beep or solid beep as you rotate
the handwheel one full revolution.
Passing Test:
Failing Test:
Main
Diagnostics
Back
Motor Speed Sensor Test
The value stabilizes at 100.
Passing Test:
Remove bobbin case and top thread.
Clear all objects from the needle area.
Press Start/Stop on Handle.
100
Figure 31
Main
Diagnostics
Back
Foot Pedal Test
Remove bobbin case and top thread.
Clear all objects from the needle area.
Depress foot pedal completely.
Value below varies from 0 to 100%
Passing Test:
45
%
Figure 30