Baby Lock Crown Jewel II (BLCJ18-2) Manual - Manual (Page 35)

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X Motion Sensor Test
Use the X Motion Sensor test to verify functionality of
the “X” stitch regulator encoder (the encoder mounted
at the rear of the carriage). As you slowly move the
carriage left and right you should hear a pulsing “beep”
that pulses faster as you move faster. A solid beep, no
beep, or periods of irregular beeping (with constant
motion) indicate a problem with the Carriage Stitch
Regulator Assembly (X-Motion). The most likely
cause of a problem is a stitch regulator wheel that is not
making consistent contact with the track. Check the
spring tension on the sensor assembly on the carriage
to assure that it will easily return to the fully extended
position after being compressed. Also assure that the
track is straight with no dips or indentations and that
it is clean and free of contamination. Other causes are
an unplugged or damaged cable or possibly an issue
with the main control board. (Figure 39)
Press the “Main” button to return to the “Regulated” or
“Manual” 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
Crown Jewel II speed sensor. Before performing this
test, remove the bobbin case and the top thread. Press
the “Start” button and the handwheel and needle bar
will begin moving slowly rotating. The white box will
show a number that should stabilize at 100 if the sen-
sor is functioning properly. Pressing “Start” again will
stop the machine. (Figure 40)
Press the “Main” button to return to the “Regulated” or
“Manual” menu screen or the “Back” button to return
to the “More” menu screen.
Figure 39
Solid beep for 1/3 of a stitch cycle,
no beep for the rest of the cycle.
Main
Diagnostics
Back
X-Motion Sensor Test
Slowly push left and right.
Pulsing beep, increasing in frequency
as you push the machine faster.
No beep or solid beep as you move
the machine left and right.
Passing Test:
Failing Test:
Figure 40
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.
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