JUKI AC-172N-1790AN Guida utente

AC-172N-1790AN

SETUP MANUAL

– 1 –

When you install the sewing machine in your plant, be sure to adjust the adjusters and check that the sewing

machine is properly installed. Check the alignment between the preset board and the sub clamp catch plate

following the steps of procedure described below.

1.VERIFICATION OF THE LOCATION OF PRESET BOARD AND SUB

CLAMP CATCH PLATE

1-1. Preparation of the power supply and the air supply

Refer to "I.3-2. Connecting the power supply" and "I.3-3. Installing the air hose" in the Instruction Manual.

1-2. Preparation of the adjusters

Turn the adjusters ( ①- ⑦) until they come in contact with the oor. After they have come in contact with the

oor, turn the adjusters clockwise by one revolution to lift them.

Adjuster ①

Adjuster ②Adjuster ③Adjuster ④

Adjuster ⑤

Adjuster ⑥Adjuster ⑦

1-3. Preparation for the device

❷

❶

Check to be sure that the seam allowance is set to 21

mm. If not, adjust the seam allowance to 21 mm.

Insert preset adjusting knob ❶which is supplied in the

tool box into the hole, and turn the knob to set the seam

allowance to the value indicated by scale (21mm) marker

❷. After the adjustment, return knob ❶to the tool box to

prevent it from being lost.

– 2 –

1-4. Preparation for the device

󰴤Displaying the data entry screen

Only on the data entry screen (blue), it is possible to select the sew-

ing shape. On the sewing screen (green), press to display the

data entry screen (blue or pink).

󰴥Displaying the check program

When you keep 󱤨held pressed for three seconds,  󱤩is

displayed on the screen. The check program screen is displayed by

pressing this button.

Caution :

Do not turn the power OFF when the preset board is

traveling forward under the adjuster adjustment mode.

󱤬

󱤫

󱤪

󱀃



󱤨

󱤩

󰴦Displaying the adjuster adjustment mode

Display the I07 adjuster adjustment mode by pressing 󱤪.

󰴧Starting the adjuster adjustment mode

After adjuster adjustment mode screen 󱤬is displayed at the press

of 󱤫, press machine head stop switch 󱀃. Then, the preset

device travels forward and the cloth plate goes up. Place the adjust-

ment gauge and adjust the adjuster.

After you have completed adjustment of the adjuster, detach the

adjustment gauge and press the machine head switch to return the

cloth plate and the preset device to their home positions. Then, turn

OFF the power switch to exit from the adjuster adjustment mode.

– 3 –

Place the adjustment gauge, which has the same marker dot number with the sub-clamp catch plate number

󰿿, 󱀂or 󱀃, on the preset board. Check whether the 6th thread of the sub-clamp catch plate is aligned with

the adjustment gauge. If not, adjust the location of the preset board and sub-clamp device taking the steps of

procedure in "■Adjustment of adjusters and alignment" p.4.

 1-5. Vericationoflocationsofthepresetboardandthesubclampcatchplate

Sub clamp catch plate 󰿿Sub clamp catch plate 󱀂

Sixth thread

Marker dot

number

Operator side

Aligned

Operator side

* Refer to "Adjustment

of adjusters and

alignment" p.4.

Not aligned

(Displaced on the

operator side)

Not aligned

(Displaced on the

opposite side of

the operator)

Operator side

(Caution) Before the adjustment of position of the preset board and sub-clamp catch plates, check whether the

6th thread of the sub-clamp catch plates 󰿿, 󱀂and 󱀃are displaced toward or away from the operator

with respect to the gauge. If the sub-clamp catch plates are displaced in whole, it is necessary to

adjust the seam allowance.

Caution :

Check the alignment between the

gauge

and the sub clamp locations observing from straight

above the cloth plate and do not touch the devices.

Sub clamp catch plate 󱀃

Sixth thread

* Refer to "Adjustment

of adjusters and

alignment" p.4.

Aligned

Adjuster 󰴤Adjuster 󰴥Adjuster 󰴦Adjuster 󰴧

Adjuster 󰴨

Adjuster 󰴩

Adjuster 󰴪

– 4 –

Step 1

1A-1.

In the case the 6th

thread of sub-clamp

catch plate

❶

is dis-

placed forward with

respect to the gauge.

Sixth

thread

1B-1. In the case the 6th

thread of sub-clamp

catch plate

❶

is dis-

placed backward with

respect to the gauge.

Sixth

thread

1A-2.

Lift adjuster ⑦, and

adjust by turning it

clockwise until the 6th

thread of sub clamp

catch plate is aligned

with the

gauge.

Then,

proceed to step 2.

Sixth

thread

1B-2.

Lift adjuster ①, and ad-

just by turning it clockwise un-

til the 6th thread of sub clamp

catch plate is aligned with the

gauge.

Then, proceed to

step 2.

Sixth

thread

Step 2

2A-1. In the case the 6th

thread of sub-clamp

catch plate

❹

is dis-

placed forward with

respect to the gauge

Sixth

thread

2B-1.

In the case the 6th

thread of sub-clamp

catch plate

❹

is dis-

placed backward with

respect to the gauge

Sixth

thread

2A-2. Lift adjusters ③and

④, and adjust by

turning them clock-

wise until the 6th

thread of sub clamp

catch plate is aligned

with the

gauge

Sixth

thread

2B-2.

Lift adjuster ②, and

adjust by turning it

clockwise until the 6th

thread of sub clamp

catch plate is aligned

with the

gauge.

Sixth

thread

Carry out steps 1 and 2

again.

Step 3

3A-1.

In the case the 6th

thread of sub-clamp

catch plate

❺

is dis-

placed forward with

respect to the gauge.

Sixth

thread

3B-1.

In the case the 6th

thread of sub-clamp

catch plate

❺

is dis-

placed backward with

respect to the gauge.

Sixth

thread

3A-2.

Lower adjuster ⑤by

turning it counterclock-

wise to adjust so that

they are aligned

with

the gauge.

Sixth

thread

3B-2.

Lift adjuster ⑤, and ad-

just by turning it clock-

wise until the 6th thread

of sub clamp catch

plate is aligned with the

gauge.

Sixth

thread

Finish the adjustment. Carry out steps 1 to 3

again.

Not aligned

3-3.

Re-check: Are

the 6th threads of sub

clamp catch plates ❶,❹and ❺

aligned with the gauge?

(See Fig. 1.)

○

Aligned

Not aligned

Fig. 1 Fig. 1

○

Aligned

2-3.

Re-check: Are

the 6th threads of sub

clamp catch plates ❶and ❹aligned

with the gauge ?

(See Fig. 1.)

Fig. 1 Fig. 1

Caution : Check to make sure that a

clearance is provided with the sub-

clamp catch plate and the preset board.

After the completion of adjustment, be

sure to remove the adjustment gauge.

■ Adjustment of adjusters and alignment

– 5 –

If the machine head comes down from its normal position due to aged deterioration, the folded edge of the material

and the seam (the edge) may not be properly aligned when placing the material position on the machine head.

In the case the smallest clearance (the di󰀨erence in height) between the machine head bed and the feed section

is 0.7 mm or more, place spacers (0.5 mm and 1.0 mm) at locations

❶

❷

and

❸

to decrease the clearance (the

di󰀨erence in height) to 0.7 mm or less

Feed plate

The lowest part of the feed block

0.5 to 0.7mm

Sewing machine bed

Clamp table

Spacer

Mfg. No.

a b

Sub clamp catch plate

❶

Sub clamp catch plate ❹

Sub clamp catch plate ❺

When moving the device after you have

installed it in your plant, ground the device

referring to the dimensions given on the

attached sheet

2. ADJUSTING THE MACHINE HEAD

3. RECORDS OF ADJUSTED VALUES

❶❷❸

Spacer

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