Baby Lock Crown Jevel BLCJ18 Instruction And Reference Manual page 29

Solid beep for 1/3 of a stitch cycle,
Diagnostics
no beep for the rest of the cycle.
Needle Sensor Test
Rotate the hand wheel.
Passing Test:
Solid beep for 1/3 of a stitch cycle,
no beep for the rest of the cycle.
Failing Test:
No beep or solid beep as you rotate
the hand wheel one full revolution.
Back
Figure 35
Diagnostics
X-Motion Sensor Test
Slowly push left and right.
Passing Test:
Pulsing beep, increasing in frequency
as you push the machine faster.
Failing Test:
No beep or solid beep as you move
the machine left and right.
Back
Figure 36
Diagnostics
Motor Speed Sensor Test
Remove bobbin case and top thread.
Clear all objects from the needle area.
Press Start/Stop on Handle.
Passing Test:
The value stabilizes at 100.
100
Back
Figure 37
26
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 a qualified
Baby Lock repair technician.
Press the "Main" button to return to the "Regulated" or
"Manual" menu screen or the "Back" button to return
to the "More" menu screen.
X Motion Sensor Test
Use the X Motion Sensor test to verify functionality of
Main
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 36)
Main
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 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 sensor is
functioning properly. Pressing "Start" again will stop
the machine. (Figure 37)
Main
Press the "Main" button to return to the "Regulated" or
"Manual" menu screen or the "Back" button to return
to the "More" menu screen.