JUKI AMB-289, Engineer'S Manual

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3) Sewing
1. E023 (Detection of step-out 1-1) Step-out of motor is 1-A) Presser motor stepped out. Check presser lifter.
of presser lifting motor error) detected when passing
is displayed. presser lifting origin sensor. 1-B) Signal from presser lifting Check connection or breaking of wire of presser lifting
origin sensor does not come. origin sensor and MAIN-INT cord C asm.
1-C) Presser lifting origin sensor Replace presser lifting origin sensor.
is broken.
1-D) MAIN p.c.b. is broken down. Replace MAIN p.c.b.
2. E030 (Needle bar upper 2-1) Needle bar does not stop at 1-A) Load is heavy. Remove the cause.
position failure) is needle UP position at the
displayed. time of needle UP operation.
3. E031 (Air pressure drop) is 3-1) Air pressure drop is detected. 1-A) Air pressure is too low or Check open/close of air valve and air piping, or compressor.
displayed. supply capacity of
compressor is too low.
1-B) Signal from pressure gauge Check connection or breaking of wire of pressure gauge
does not come. relay cord asm.
1-C) Setting of pressure gauge is Adjust setting of pressure gauge (0.5 MPa).
too high.
1-D) Pressure gauge is broken. Replace pressure gauge.
4. E050 (Stop switch) is 4-1) Stop switch is detected 1-A) Stop switch is pressed. Release with reset key on the panel.
displayed during machine running.
1-B) Signal from stop switch does Check connection or breaking of wire of stop switch relay
not come. cord asm.
1-C) Stop switch is broken. Replace stop switch.
5. E098 (Needle bar down 5-1) Needle bar cannot be 1-A) Load of the machine is too Check the sewing machine.
error) is displayed. lowered. heavy.
1-B) SDC p.c.b. is broken down. Replace SDC p.c.b.
Trouble Cause (1) Cause (2) Inspecting order and adjusting procedure