Baby Lock Crown Jewel III BLCJ18-3 Instruction And Reference Manual page 36

Diagnostics
Motor Sensor Test
Rotate the hand wheel slowly.
Passing Test:
Regular pulsing beeps as you
rotate the hand wheel.
Failing Test:
A solid tone or no beeping at all
as you rotate the hand wheel.
Back
Figure 46
Solid beep for 1/3 of a stitch cycle,
no beep for the rest of the cycle.
Diagnostics
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 47
Solid beep for 1/3 of a stitch cycle,
no beep for the rest of the cycle.
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 48
Diagnostics Tests
Motor Sensor Test
The "Motor" Sensor test can help you determine whether
there may be a problem with the Baby Lock Crown Jewel
III motor. Slowly rotating the handwheel should result
in a pulsing audible "beep. " If you get a constant solid
"beep" or no "beep" at all, this indicates a failed test and
the machine should be inspected by an authorized Baby
Lock retailer (Figure 46).
Press the "Main" button to return to the "Regulated" or
"Manual" menu screen or the "Back" button to return to
Main
the "More" menu screen.
Needle Sensor Test
The Needle Sensor test will indicate whether the needle
position sensor is functioning properly. Rotating the
handwheel should result in a "beep" for half of a stitch cy-
cle followed by no "beep" for the other half (Figure 47).
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 an authorized Baby
Lock retailer.
Press the "Main" button to return to the "Regulated" or
Main "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
the "X" stitch regulator encoder (the encoder mounted at
the rear of the carriage). As you slowly move the car-
riage 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 prob-
lem is a stitch regulator wheel that is not making consist-
ent contact with the track. Check the spring tension on
the sensor assembly on the carriage to assure that it will
Main
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 con-
tamination. Other causes are an unplugged or damaged
cable or possibly an issue with the main control board
(Figure 48).
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