Bedienungsanleitung Juki DDL8700B-7 (Seite 49 von 51) (Englisch)

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Phenomenon Cause Corrective measure

When tilting the sewing machine,

the buzzer beeps and the sewing

machine cannot be operated.

When tilting the sewing machine

without turning OFF the power switch,

Action given on the left side is taken for

safety sake.

Tilt the sewing machine after turning

OFF the power.

Solenoids for thread trimming,

reverse feed, wiper, etc. fail to work.

Hand lamp does not light up.

When the fuse for solenoid power pro-

tection has blown out

Check the fuse for solenoid power

protection.

Even when depressing the pedal

immediately after turning ON the

power, the sewing machine does not

run. When depressing the pedal af-

ter depressing the back part of pedal

once, the sewing machine runs.

Neutral position of the pedal has varied.

(Neutral position may be shifted when

changing spring pressure of the pedal

or the like.)

Execute the automatic neutral correc-

tion function of the pedal sensor.

The sewing machine does not stop

even when the pedal is returned to

its neutral position.

Presser foot does not go up even

when auto-lifter device is attached.

Auto-lifter function is OFF. Select “Automatic presser lifter is pro-

vided.” by auto-lifter function selection.

Pedal system is set to KFL system. Change the jumper to PFL setting to lift

the presser foot by depressing the back

part of the pedal.

Cord of auto-lifter device is not con-

nected to connector (CN37).

Connect the cord properly.

Touch-back switch fails to work. Presser foot is going up by auto-liter

device.

Operate the switch after the presser

foot lowered.

Auto-lifter device is not attached. How-

ever, auto-lifter function is ON.

Select “Automatic presser lifter is not

provided.” when auto-lifter device is not

attached.

Sewing machine fails to run. Motor output cord (4P) is disconnected. Connect the cord properly.

Connector (CN30) of motor signal cord

is disconnected.

Connect the cord properly.

2. Error codes

In case of the following, check again before you judge the case as trouble.

In addition, there are the following error codes in this device. These error codes interlock (or limit function)

and inform the problem so that the problem is not enlarged when any problem is discovered. When you

request our service, please conrm the error codes.

[Checking procedure of the error code]

1) Turn ON the power switch with switch 󱀖

held pressed.

2) With a bleep, serial numbers of the errors which

have occurred so far appear on the display sec-

tion A.

3) Press and switches ❾ to enable selec-

tion of the serial number. Select one of the serial

numbers you want to check and, in this state,

press switch 󱀔 to display the error code,

press switch 󱀕 to display the energized

time duration (upper four digits of hours and

minutes), or press switch 󱀖 to display the

energized time duration (lower four digits of hours

and minutes). (The aforementioned data are

displayed as long as the corresponding switch is

held pressed.)

󱀕

󱀖

Display section A

❾

󱀔

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Juki DDL8700B-7 Seite 49

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