JUKI AC-172N-1790 Guida utente

AC-172N-1790

SETUP MANUAL

ENGLISH

– 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 "!.3-2. Connecting the power supply" and "!.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

– 2 –

　1-4. Preparation for the device

Turn the power ON.

1Set the mode to input mode.

When the back-light of LCD display 1shows the input mode in blue

color, it is possible to change the memory switch data. When the back-

light shows the sewing mode in green color, press READY key 2to

change over to the input mode.

2Call memory switch data edit screen.

Press MODE key 3 , and memory switch data (level 1) edit screen A

is displayed.

Further hold pressing the key for 3 seconds, and memory switch data

(level 2) edit screen Bis displayed.

3Select memory switch data to change.

Press ITEM SELECT key 4to select K55 (C).

4Activate the adjuster adjustment mode.

Press READY key 2 to activate the adjustment mode.

Press STOP switch 5 on the machine head, and the preset board trav-

els forward and the cloth plate moves up.

Set up the adjustment gauge in place and adjust the adjuster.

After the completion of adjustment of the adjuster, remove the adjust-

ment gauge. Press the switch on the machine head to return the cloth

plate and the preset board to the home position.

Press the power switch to exit the adjuster adjustment mode.

1-3. Preparation for the device

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 1which 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

2. After the adjustment, return knob 1to the tool box to

prevent it from being lost.

Caution :

Do not turn the power OFF when the preset board is

traveling forward under the adjuster adjustment mode.

– 3 –

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

1, 4or 5, 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 proce-

dure 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 1Sub clamp catch plate 4

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 1, 4and 5are 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 5

Sixth thread

※ Referto"Adjustment

of adjusters and

alignment" p.4.

Aligned

Adjuster 1Adjuster 2Adjuster 3Adjuster 4

Adjuster 5

Adjuster 6

Adjuster 7

– 4 –

Step 1

1A-1.

In the case the 6th

thread of sub-clamp catch

plate

is displaced to-

ward the operator side

with respect to the gauge.

Sixth

thread

1B-1. In the case the 6th

thread of sub-clamp catch

plate

is displaced away

from the operator side

with respect to the gauge.

Sixth

thread

1A-2.

Lift adjuster 7, and ad-

just by turning it clockwise

until the 6th thread of sub

clamp catch plate is aligned

with the

gauge.

Then, pro-

ceed to step 2.

Sixth

thread

1B-2.

Lift adjuster 1, and

adjust by turning it clock-

wise until 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

is displaced to-

ward the operator side

with respect to the gauge.

Sixth

thread

2B-1. In the case the 6th

thread of sub-clamp catch

plate

is displaced away

from the operator side

with respect to the gauge.

Sixth

thread

2A-2. Lift adjusters 3and

4, and adjust by turning

them clockwise until the

6th thread of sub clamp

catch plate is aligned

with

the

gauge

Sixth

thread

2B-2.

Lift adjuster 2, and ad-

just 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

is displaced to-

ward the operator side

with respect to the gauge.

Sixth

thread

3B-1. In the case the 6th

thread of sub-clamp catch

plate

is displaced away

from the operator side

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 1,4and 5

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 1and 4aligned

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 difference 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

and

to decrease the clearance (the

difference 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 1

Sub clamp catch plate 4

Sub clamp catch plate 5

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

123

Spacer

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