JUKI AMS-224EN6060/IP-420 User manual

1
ENGLISH
INSTRUCTION MANUAL
AMS-224EN6060 / IP-420
* This Instruction Manual only describes the functions which are different from those of the
AMS-224EN/IP-420. In order to use the AMS-224EN6060 safely, please be sure to read not
only this Instruction Manual but also that for the AMS-224EN/IP-420 before using your AMS-
224EN6060.
* "CompactFlash(TM)" is the registered trademark of SanDisk Corporation, U.S.A.

i
＊:
Refer to the Instruction Manual for the AMS-224EN.
CONTENTS
I. MECHANICAL SECTION (WITH REGARD TO THE SEWING MACHINE) ... 1
1. SPECIFICATIONS ....................................................................................................... 1
2. CONFIGURATION ....................................................................................................... 2
3. INSTALLATION ........................................................................................................... 3
3-1. Installation of the sewing machine.............................................................................................3
3-2. Assembling the thread stand......................................................................................................3
3-3. Installing the thread stand ..........................................................................................................3
3-4. Installing the air hose ..................................................................................................................4
3-5. Preparing the sewing cassette ...................................................................................................4
3-6. Installing the eye protection cover.............................................................................................6
4. PREPARATION OF THE SEWING MACHINE ............................................................ 7
4-1. Lubrication....................................................................................................................................7
4-2. Attaching the needle....................................................................................................................7
4-3. Threading the machine head ......................................................................................................7
4-4. Installing and removing the bobbin case .................................................................................. 8
4-5. Installing the bobbin....................................................................................................................8
4-6. Adjusting the thread tension ......................................................................................................9
4-7. Intermediate presser height........................................................................................................9
4-8. Adjusting the thread take-up spring ..........................................................................................9
5. OPERATION OF THE SEWING MACHINE............................................................... 10
5-1. Sewing.........................................................................................................................................10
5-2. Needle thread clamp device...................................................................................................... 11
II. OPERATION SECTION (WITH REGARD TO THE PANEL) ............................................. 11
1. PREFACE .................................................................................................................. 11
2. WHEN USING IP-420 ................................................................................................ ＊
2-1. Name of each section of IP-420 ................................................................................................ ＊
2-2. Buttons to be used in common ................................................................................................ ＊
2-3. Basic operation of IP-420 .......................................................................................................... ＊
2-4. LCD display section at the time of sewing shape selection .................................................. ＊
(1) Sewing shape data input screen................................................................................................. ＊
(2) Sewing screen ............................................................................................................................ ＊
2-5. Performing sewing shape selection......................................................................................... ＊
2-6. Changing item data.................................................................................................................... ＊
2-7. Checking pattern shape ............................................................................................................ ＊
2-8. Performing modication of needle entry point ....................................................................... ＊
(1) Editing the thread tension ........................................................................................................... ＊
(2) Editing the intermediate presser height ...................................................................................... ＊
2-9. How to use temporary stop....................................................................................................... ＊
(1) To continue performing sewing from some point in sewing ........................................................ ＊
(2) To perform re-sewing from the start............................................................................................ ＊

ii
＊:
Refer to the Instruction Manual for the AMS-224EN.
2-10.
When setting of sewing product is difcult because of interruption of needle tip .................. ＊
2-11. Winding bobbin thread ............................................................................................................. ＊
(1) When performing winding bobbin thread while performing sewing ............................................ ＊
(2) When performing winding bobbin thread only ............................................................................ ＊
2-12. Using counter............................................................................................................................ ＊
(1) Setting procedure of the counter ................................................................................................ ＊
(2) Count-up releasing procedure .................................................................................................... ＊
(3) How to change the counter value during sewing ........................................................................ ＊
2-13. Performing new register of users’ pattern.............................................................................. ＊
2-14. Naming users’ pattern .............................................................................................................. ＊
2-15. Performing new register of pattern button............................................................................. ＊
2-16. LCD display section at the time of pattern button selection ................................................ ＊
(1) Pattern button data input screen................................................................................................. ＊
(2) Sewing screen ............................................................................................................................ ＊
2-17. Performing pattern button No. selection ................................................................................ ＊
(1) Selection from the data input screen .......................................................................................... ＊
(2) Selection by means of the shortcut button.................................................................................. ＊
2-18. Changing contents of pattern button...................................................................................... ＊
2-19. Copying pattern button ............................................................................................................ ＊
2-20. Changing sewing mode............................................................................................................ ＊
2-21. LCD display section at the time of combination sewing....................................................... ＊
(1) Pattern input screen.................................................................................................................... ＊
(2) Sewing screen ............................................................................................................................ ＊
2-22. Performing combination sewing ............................................................................................. ＊
(1) Selection of combination data..................................................................................................... ＊
(2) Creating procedure of the combination data............................................................................... ＊
(3) Deleting procedure of the combination data ............................................................................... ＊
(4) Deleting procedure of the step of the combination data ............................................................. ＊
2-23. Using the simple operation mode ........................................................................................... ＊
2-24. LCD display when the simple operation is selected.............................................................. ＊
(1) Data input screen (individual sewing) ......................................................................................... ＊
(2) Sewing screen (individual sewing).............................................................................................. ＊
(3) Data input screen (combination sewing)..................................................................................... ＊
(4) Sewing screen (combination sewing) ......................................................................................... ＊
2-25. Changing memory switch data................................................................................................ ＊
2-26. Using information ..................................................................................................................... ＊
(1) Observing the maintenance and inspection information............................................................. ＊
(2) Releasing procedure of the warning ........................................................................................... ＊
2-27. Using communication function ............................................................................................... ＊
(1) Handling possible data ............................................................................................................... ＊
(2) Performing communication by using the media.......................................................................... ＊
(3) Performing communication by using USB .................................................................................. ＊
(4) Take-in of the data ...................................................................................................................... ＊
(5) Taking in plural data together...................................................................................................... ＊
2-28. Performing formatting of the media........................................................................................ ＊

iii
＊:
Refer to the Instruction Manual for the AMS-224EN.
2-30.Operation at the time of X/Y motor position slip..................................................................... ＊
(1) When the error is displayed during sewing................................................................................. ＊
(2) When the error is displayed after end of sewing......................................................................... ＊
(3) When the rest switch is not displayed......................................................................................... ＊
3. MEMORY SWITCH DATA LIST................................................................................. ＊
3-1. Data list ....................................................................................................................................... ＊
3-2. Initial value list ........................................................................................................................... ＊
4. ERROR CODE LIST .................................................................................................. ＊
5. MESSAGE LIST ........................................................................................................ ＊
III. MAINTENANCE OF SAWING MACHINE................................................ 12
1. MAINTENANCE......................................................................................................... 12
1-1. Adjusting the height of the needle bar (Changing the length of the needle) ....................... 12
1-2. Adjusting the needle-to-shuttle relation .................................................................................. 12
1-3. Adjusting the timing of main shaft and hook driving shaft ................................................... 14
1-4. Adjusting the vertical stroke of the intermediate presser..................................................... 14
1-5. The moving knife and counter knife.........................................................................................14
1-6. Needle thread clamp device......................................................................................................14
1-7. Thread breakage detector plate................................................................................................14
1-8. Draining waste oil ......................................................................................................................14
1-9. Needle cooler unit......................................................................................................................15
1-10. Amount of oil supplied to the hook......................................................................................... 16
1-11. Replacing the fuse ....................................................................................................................16
1-12. Changing the voltage of 100 ⇔200V ......................................................................................16
1-13. Replenishing the designated places with grease .................................................................. 16
(1) Points to be applied with JUKI Grease A.................................................................................... ＊
(2) Points to be applied with JUKI Grease B.................................................................................... ＊
(3) Points of the feed gear section to be applied with grease .......................................................... 16
(4) Points of the cassette chuck section to be applied with grease.................................................. 17
1-14. Troubles and corrective measures (Sewing conditions)....................................................... 17
2.OPERATION FLOWCHART...................................................................................... 18
3. OPTIONAL ................................................................................................................ 19
3-1. Table of Needle hole guide........................................................................................................ 19
3-2. Silicon oil tank............................................................................................................................19
3-3. Bar code reader..........................................................................................................................19
3-4. Tension controller No. 3 ............................................................................................................ 19

– 1 –
1. SPECIFICATIONS
I. MECHANICAL SECTION (WITH REGARD TO THE SEWING MACHINE)
1 Sewing area Standard sewing area at the time of shipment X direction 600 mm × Y direction 500 mm
Largest possible sewing area X direction 600 mm × Y direction Max. 600 mm
2 Max. sewing speed 2,000 sti/min (When sewing pitch is 3 mm or less)
3 Stitch length 0.1 to 12.7 mm (in increments of 0.05 mm)
4 Feed system Intermittent X-Y linear system (with an encoder) driven by the stepping motor
5 Needle bar stroke 41.2 mm
6 Needle
Sewing specication
DP x 17 (B point) (Standard #24) (135×17 FG)
Pneumatic reverse feed type Applicable count of thread: 840 to 1860 denier
7Feeding frame specication Cassette holder of auto-ejector type
8 Intermediate presser stroke 4 mm (Standard) (0 to 10 mm)
9 Lift of intermediate presser 15 mm
10 Intermediate presser
DOWN position variable
0 to 4.0 mm
11 Shuttle Double-capacity semi-rotary hook
12 Lubricating oil New Defrix Oil No. 2 (Lubrication system)
Grease: JUKI GreaseA, PenetrationNo2 lithium Grease, JUKI GreaseB、
LONGTERM W2 (feed rack & pinion, auto-ejector)
13 Memory of pattern data Main body, medium
• Main body : Max. 999 patterns (Max. 50,000 stitches/pattern)
• Medium：Max. 999 patterns (Max. 50,000 stitches/pattern)
14 Start switch Two-hand control start switch
15 Temporary stop facility Used to stop machine operation during a stitching cycle.
16 Enlarging / Reducing facility Allows a pattern to be enlarged or reduced on the X axis and Y axis independently
when sewing a pattern. Scale : 1% to 400% times (0.1% steps)
17 Enlarging / Reducing
method
Pattern enlargement / reduction can be done by increasing / decreasing either stitch
length or the number of stitches. (Increasing/decreasing stitch length only can be
performed when pattern button is selected.)
18 Max. sewing speed
limitation
200 to 2,000 sti/min (Scale : 100 sti/min steps)
19 Pattern selection facility Pattern No. selection method (Main body :1 〜999、Medium：1〜999)
20 Bobbin thread counter UP/DOWN method (0 to 9,999)
21 Sewing counter UP/DOWN method (0 to 9,999)
22 Memory back-up In case of a power interruption, the pattern being used will automatically be stored in
memory.
23 2nd origin setting facility Using jog keys, a 2nd origin (needle position after a sewing cycle) can be set in the
desired position within the sewing area. The set 2nd origin is also stored in memory.
24 Sewing machine motor Servo-motor
25 Dimensions 1,800mm (W) x 2,100mm (L) x 1,275mm (H) (Excluding thread stand)
26 Mass (gross mass) 710 kg
27 Power consumption 550 VA
28 Operating temperature
range
5˚C to 35˚C
29 Operating humidity range 35 % to 85 % (No dew condensation)
30 Line voltage Rated voltage ±10% 50 / 60 Hz
31 Air pressure used 0.5 to 0.55 MPa (Max. 0.55 MPa)
32 Air consumption 1.8 dm3 / min (ANR)
33 Needle highest position
stop facility
After the completion of sewing, the needle can be brought up to its highest position.
34 Noise - Equivalent continuous emission sound pressure level (LpA) at the workstation :
A-weighted value of 85 dB ; (Includes KpA = 2.5 dB) ; according to ISO 10821- C.6.3
-ISO 11204 GR2 at 2,000 sti/min.
- Sound power level (LWA) :
A-weighted value of 94 dB ; (Includes KWA = 2.5 dB) ; according to ISO 10821- C.6.3
-ISO 3744 GR2 at 2,000 sti/min.
(Dust prevention mat (accessory) is used.)

– 2 –
2. CONFIGURATION
❶Machine head
❷Thread stand
❸Operation panel (IP-420)
❹Auto-ejector
❺Power switch (also used as the emergency stop
switch)
❻Two-hand control start switch
❼Auto-ejector unclamp switch
❽Air regulator
❾ Intermediate presser
󱢳Sewing cassette
󱢴Control box
❷
❺
󱢳❶
❸
❹
❼
❽
❻
❾
󱢴

– 3 –
1. Installation of the machine should be carried by a trained technician.
2. Contact the distributor or a professional electrician to have him/her to carry out electric wiring.
3. The sewing machine weighs 710 kg or more. It is therefore necessary to install it with
two or more persons.
4. Do not connect the power plug until the installation of the sewing machine is complet-
ed. If you press the start switch by mistake, the sewing machine will run to cause an
accident resulting in an injury.
5. Install the sewing machine away from strong elaectrical noise sources such as a
high-frequency welder. Installing the sewing machine near the strong electrical noise
source can cause a malfunction of the machine.
6. Be sure to ground the sewing machine. If the earth connection is improper, an electri-
cal shock can occur.
3. INSTALLATION
3-1. Installation of the sewing machine
Refer to "I-3-4. Installing the thread stand" p.6 in the Instruction Manual for the AMS-
224EN.
(The thread stand components are supplied with the machine in the accessory box.)
❶
❷
1) Once the place of installation of the sewing ma-
chine is determined, place vibration preventing
rubber
（40123512）
❸under adjusting bolt ❷.
(The vibration preventing rubber is supplied
with the machine in the accessory box.)
2) Loosen locknuts ❶of adjusting bolts ❷at
eight locations. Lower adjusting bolts ❷to
check to be sure that the machine is horizon-
tal to the oor. Then, secure the machine with
locknuts ❶.
❸
If the machine is not properly secured,
the main body of the sewing machine
can move from the installation location
to cause an injury of the worker and a
malfunction of the sewing machine.
3-2. Assembling the thread stand
3-3. Installing the thread stand
Install thread base ❶on the panel strut ❷. In-
stall intermediate thread guide asm. (26910059)
❸with oriented in the direction as shown in the
drawing.
❶
❷
❸

– 4 –
3-4. Installing the air hose
1) Connecting the air hose
Connect the air hose to the regulator.
2) Adjustment of air pressure
Open air cock ❶, pull up and turn air adjust-
ment knob ❷and adjust so that air pressure
indicates 0.5 to 0.55 MPa (Max. 0.55 MPa).
Then lower the knob and x it.
* Close air cock ❶to expel air.
Open
Close
❶
❷
1) The sewing cassette is separately available by special order.
When you would like to prepare a sewing cassette by yourself, prepare the sewing cassette shown
in the gure above.
* When you have prepared a custom-ordered sewing cassette, read from 2).
3-5. Preparing the sewing cassette
Sewing cassette
Operator side
Weight 9.5 kg or less
Width 860 mm (reference)
Depth 680 mm (reference)
Height 12 mm
or less
250mm
22mm
2xø5.8, ø8.8 Countersink
(rear surface)
Origin
550mm
9mm
6.5mm
(Outside dimension) 2xø4.5
6.5mm
(Outside dimension)
t=1.5
12 mm
or less

– 5 –
2) Adhere Teon sheet (optional: 40123146) on
the rear surface of sewing cassette ❶.
If the Teon sheet is not adhered on the
rear surface of the sewing cassette, the
top surface of the throat plate can be
stained to leave stains on the sewing
material. The Teon sheet is a consum-
able part. It is necessary therefore peri-
odically inspect it and change it with a
new one if it has worn out.
3) Temporarily fix positioning block (40123408)
❷and positioning block (40123409) ❸at both
ends of the sewing cassette pitch (550 mm).
(Positioning blocks ❷and ❸and the set-
screws are supplied with the machine in the
accessory box.)
4) Fix positioning block ❷with a counter-sunk
head screw.
❸
❷
❶
Positioning A Installation pitch 550
5) Temporarily fix positioning block ❸with the
setscrews and washer. Make the auto-ejector
clamp the positioning block. Then, fix posi-
tioning block ❸with the setscrew.
Repeat unclamping and clamping operations
several times to check whether the position-
ing block is fully clamped.
Check the clearance in B section with the posi-
tioning block ❸clamped. If there is a clearance,
loosen setscrew ❺and move plates ❹(at two
locations on the right and left) in the direction of
arrow C to adjust the clearance to 0 (zero).
Move the sewing cassette back and forth and
to the right and left to check whether it has a
play when it is clamped.
・
The positioning block at the auto-ejec-
tor side is used as the reference. Do
not adjust it according to the jig.
・ In prior to the start of use of the sew-
ing machine, clean up the underside
and material holding plane of the
sewing cassette, top surface of the
throat plate auxiliary cover and sec-
tions 1 and 2 of the positioning block
and check to make sure that they are
free from dust. If any of them is not
clean, the material can be soiled.
❸
Auto-ejector
❹
❺
C
B section
Setscrew

– 6 –
When using the machine with the
sewing area of which longitudinal di-
mension is 600 mm, be aware that the
sewing cassette may project the throat
plate auxiliary cover while the feed
travels forward in Y direction.
3-6. Installing the eye protection cover
Refer to "I-3-6. Installing the eye protection cover" p.7 in the Instruction Manual for the
AMS-224EN.
The sewing area can be broadened to 600 mm
in longitudinal direction according to the memory
switch setting. It should be remembered, however,
there arises the area in which sewing and jump are
disabled. So, carefully set the sewing area.
Area in which sewing
and jump are disabled
Origin
600mm
300mm300mm
200mm
200mm 200mm
Area in which sewing
and jump are disabled
The sewing area has been factory set to the area
(600 x 500) as shown in the gure at the time of
shipment.
Sewing area
Sewing area
Origin
600mm
200mm300mm

– 7 –
4-2. Attaching the needle
Refer to "I-4-1. Lubrication" p.9 in the Instruction Manual for the AMS-224EN for the
additional information.
Refer to "I-4-2. Attaching the needle" p.9 in the Instruction Manual for the AMS-224EN.
Threading the thread guide when using the thread that untwists hardly
Thread the thread
guide as shown in the
gure at the left also
when the thread re-
sistance is large and
the required length of
needle thread remain-
ing on the needle
after thread trimming
cannot be secured.
Threading the thread guide
4. PREPARATION OF THE SEWING MACHINE
4-1. Lubrication
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
4-3. Threading the machine head
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
CAUTION :
When handling the lubricating oil or grease, wear safety goggles and protective gloves to prevent
the lubricating oil or grease from coming in contact with the skin. The lubricating oil and grease
can cause inammation on skin if contacted. In addition, never swallow or eat the lubrication oil
and grease. The lubricating oil and grease can cause diarrhea or vomiting.
Needle
thread
Bobbin
thread
Bobbin
thread
Needle
thread

– 8 –
4-4. Installing and removing the bobbin case
Refer to "I-4-4. Installing and removing the bobbin case" p.10 in the Instruction Manual
for the AMS-224EN.
Cushioning materials ❶to ❻are adhered on the
sewing machine strut, switch, etc. in order to avoid
personal injury.
Inspect the cushioning materials before the oper-
ation of the sewing machine for peeling and any
other defects. Change the cushioning material
with a new one if it has peeled off or has any de-
fect.
Strut
Switch
No Part No. Part name
❶40123402 CUSHION 1
❷40123403 CUSHION 2
❸40123404 CUSHION 3
❹40123401 CUSHION Block
❺40123405 CUSHION 4
❻40123406 CUSHION 5
Carefully protect against personal in-
jury caused by a possible contact with
the sewing machine strut, switch, etc.
❺
❻
❶
❸
❶
❷
Strut Strut
4-5. Installing the bobbin
Refer to "I-4-5. Installing the bobbin" p.10 in the Instruction Manual for the AMS-224EN.
❶
❸
Strut
❹
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.

– 9 –
4-8. Adjusting the thread take-up spring
Refer to "I-4-8. Adjusting the thread take-up spring" p.12 in the Instruction Manual for
the AMS-224EN.
4-7. Intermediate presser height
Press INTERMEDIATE PRESSER SET-
TING button Aand adjust with TEN keys B
so that the clearance between the bottom
end of intermediate presser and the cloth is
-0.5 to 0.5 mm (thickness of thread used).
When raising the intermediate presser height, turn the pulley by hand to lower the needle
bar, and conrm that the needle bar does not interfere with the intermediate presser.
For the intermediate presser, the height setting range displayed is from 0 to 7 mm. It has
been factory-set to the range from 0 to 4 mm as an actual measurement at the time of ship-
ment. Be aware that, if the set value of the intermediate presser height is 3 mm or less, the
intermediate presser can interfere with the needle hole guide.
A
B
The actual height of the intermediate presser is 3 mm lower than the value entered with the TEN keys.
(Example) Value entered with the TEN keys Actual height
7mm 4mm
4mm 1mm
3mm 0mm
Enter the value of the intermediate presser height that does not cause interference between the inter-
mediate presser and the needle hole guide referring to the aforementioned (Example).
4-6. Adjusting the thread tension
Refer to "I-4-6. Adjusting the thread tension" p.11 in the Instruction Manual for the AMS-
224EN.
• Clearance is large →Well-tensed seam is produced
Clearance is small →Small clearance or no clearance (the state that the material is slightly pressed
by the intermediate presser) is effective to prevent stitch skipping and isolated idling
loops which are produced when the needle penetrates the bobbin thread.
-0.5 mm to 0.5 mm
(reference)

– 10 –
5. OPERATION OF THE SEWING MACHINE
5-1. Sewing
1) Fit projection ❷of sewing cassette ❶into the slit on auto-ejector ❸. Now, sewing cassette ❶is
automatically clamped.
2) To unclamp the sewing cassette, press UNCLAMP switch ❹.
3) Check that the sewing cassette is clamped. Then, press two two-hand control start switches ❺
simultaneously to start sewing.
・ When starting sewing, check to be sure that the sewing cassette is securely xed in position.
If not, personal injury or sewing machine breakage can be caused.
・ If a clamp fault such as the slip-off of the clamp is detected during sewing, the sewing machine
makes an emergency stop and the panel displays the message "PAUSE switch is pressed".
In this case, however, the RESET button is not displayed. In this case, turn the power
switch OFF, close the air cock to discharge air (refer to "I-3-4. Installing the air hose" p.4).
Remove the sewing cassette and turn the power switch ON. After having removed the cause of
the clamp fault, carry out sewing again following the steps of procedure from step 1).
・ If you turn the power switch OFF when the auto-ejector is in the unclamped state, the au-
to-ejector carries out clamping. So, be careful to protect ngers and other parts of your body
against pinching by the auto-ejector.
・ In the case of a faulty clamping (pinching of foreign matters, inadequate insertion of the
sewing cassette), the sewing machine will not start sewing even if you press two two-hand
control start switches ❺simultaneously. In this case, press UNCLAMP switch ❹to release
the sewing cassette from the clamped state, remove the cause of faulty clamping, and start
sewing again following the steps of procedure from step 1).
・ Be aware that hands or ngers can be caught in opening A of the throat plate auxiliary cover
during sewing or when the feed is brought forward by jump operation.
Unclamped state Clamped state
❷
❸
4) After the sewing, the auto-ejector automatically pushes out the sewing cassette to complete the sewing.
5) To temporarily stop the sewing machine during sewing, press PAUSE switch ❻.
6) To stop the sewing machine in the event of an emergency, press POWER switch ❼which is also
used as EMERGENY switch.
❺❼
❻
❹
❶❸
A

– 11 –
Kind
Area
H Type, G Type
(Vinyl leather)
H Type, G Type
(Denim) H Type, G Type H Type
4530
6030
ø 60 Pitch 3.6mm
Pattern No. 101
ø 60 Pitch 3 mm
Pattern No. 102
ø 60 Pitch 2.5 mm
Pattern No. 103
6060 ↑ ↑ ↑
Complex pattern shape
Pitch 2.8 mm
Pattern No. 010
II. OPERATION SECTION (WITH REGARD TO THE PANEL)
Refer to "II. OPERATION SECTION (WITH REGARD TO THE PANEL)" p.15 in the Instruc-
tion Manual for the AMS-224EN for the additional information.
1. PREFACE
The media supplied with the unit contains the following service patterns.
The operation panel for the AMS-224EN comes in the following four types.
5-2. Needle thread clamp device
The thread clamp device has been factory-set to OFF at the time of shipment. Leave it in the OFF
state when using the sewing machine.

– 12 –
1-2. Adjusting the needle-to-shuttle relation
❸❸
❹
❸: When DP x 17 needle (of
which needle count is
lower than #22) is used.
❸: When DP x 17 needle (of
which needle count is
higher than #22) is used.
❹
❺: Marker line for DP
x 17 needle (with
needle count higher
than #22)
❻: Marker line for DP
x 17 needle (with
needle count lower
than #22)
* Turn ON the power once, and turn OFF the
power again after making the intermediate
presser in the lowered state.
1) Turn hook driving shaft pulley ❶by hand
and adjust lower engraved marker line ❸to
the bottom end of needle bar lower metal ❹
when needle bar ❷goes up.
❹
❻
❺
❷
❶
1-1. Adjusting the height of the needle bar (Changing the length of the needle)
* Turn ON the power once, and turn OFF the power again after making the intermediate presser
in the lowered state.
1) Bring needle bar ❶down to the lowest position of its stroke. Loosen needle bar connection screw
❷ and adjust so that the upper marker line ❸engraved on the needle bar aligns with the bottom
end of the needle bar bushing lower ❹.
2) As illustrated in the above gure, change the adjusting position in accordance with the needle
count. (The standard needle count is DP x 17 (B point), #24.)
* If sewing problems such as stitch skipping and thread breakage when the needle bar is set at the
standard position, the problems may be xed by nely adjusting the needle bar height within the
range of one marker line.
1. MAINTENANCE
❶
❷
❶
❹❸
❺
❻
❺: Market line for DP x 17
(with needle count higher than #22)
❻: Marker line for DP x 17
(with needle count lower than #22)
III. MAINTENANCE OF SAWING MACHINE
After the adjustment, turn the pulley to check for an extra load.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.

– 13 –
❽
󱢳
❾
2) Loosen setscrew ❽in the driver. Drawing
bobbin case opening lever hook ❾toward
you, open it to the right and left until bobbin
case opening lever 󱢳comes off.
At this time, be careful not to let shut-
tle 󱢴come off and fall.
0 mm
0 mm
0.05 〜0.1 mm
8 mm
3) Adjust so that the point of shuttle 󱢴meets the
center of needle 󱢵, and that a clearance of 0
mm is provided between the front end face of
driver 󱢶and needle as the front end face of
driver receives needle to prevent the needle
from being bent. Then tighten setscrew ❽.
4) Loosen shuttle race screw 󱢷, and adjust the
longitudinal position of the shuttle race. To
do this adjustment, turn shuttle race adjust-
ing shaft 󱢸clockwise or counterclockwise to
provide a 0.05 to 0.1 mm clearance between
needle 󱢵and the blade point of shuttle 󱢴.
5) After adjusting the longitudinal position of
shuttle race, further adjust to provide a 8 mm
clearance between the needle and the shuttle
race. Then, tighten screw 󱢷of shuttle race.
󱢳
❾
󱢴
󱢴󱢵
󱢶
❽
󱢵
󱢴
󱢷󱢸
The cushioning materials are adhered on the sewing machine strut, switch, etc. in order to avoid per-
sonal injury.
Inspect the cushioning materials before the operation of the sewing machine for peeling and any other
defects. Change the cushioning material with a new one if it has peeled off or has any defect.
→ Refer to "I-4-4. Installing and removing the bobbin case" p.8.
Carefully protect against personal injury caused by a possible contact with the sewing
machine strut, switch, etc.

– 14 –
1-4. Adjusting the vertical stroke of the intermediate presser
1-5. The moving knife and counter knife
1-7. Thread breakage detector plate
1-6. Needle thread clamp device
1-8. Draining waste oil
Refer to"III-1-3. Adjusting the timing of main shaft and hook driving shaft" p.105 in the
Instruction Manual for the AMS-224EN.
Refer to "III-1-5. Adjusting the vertical stroke of the intermediate presser" p.106 in the
Instruction Manual for the AMS-224EN.
Refer to "III-1-6. The moving knife and counter knife" p.106 in the Instruction Manual for
the AMS-224EN.
Refer to "III-1-7. Needle thread clamp device" p.107 in the Instruction Manual for the AMS-
224EN.
* The thread clamp device has been factory-set to OFF at the time of shipment. Leave it in
the OFF state when using the sewing machine.
Refer to"III-1-8. Thread breakage detector plate" p.107 in the Instruction Manual for the
AMS-224EN.
Refer to "III-1-9. Draining waste oil" p.108 in the Instruction Manual for the AMS-224EN.
1-3. Adjusting the timing of main shaft and hook driving shaft

– 15 –
1-9. Needle cooler unit
Thread breakage due to the rise in the needle
temperature can be prevented by the use of the
needle cooler unit.
1) The needle cooler unit blows compressed air
to the needle through air nozzle ❶and stops
blowing simultaneously with the completion of
sewing.
2) Turn ow regulating valve ❷to fully open it,
then give it two turns in the reverse direction.
This procedure is the reference for the adjust-
ment of the amount of air blow that does not
swing the thread.
❶
❷

– 16 –
1-13. Replenishing the designated places with grease
(3) Points of the feed gear section to be applied with grease
1-12. Changing the voltage of 100 ⇔200V
1-11. Replacing the fuse
1-10. Amount of oil supplied to the hook
Refer to "III-1-10. Amount of oil supplied to the hook" p.108 in the Instruction Manual for
the AMS-224EN.
Refer to "III-1-11. Replacing the fuse" p.108 in the Instruction Manual for the AMS-224EN.
Refer to "III-1-12. Changing the voltage of 100 ⇔200V" p.109 in the Instruction Manual for
the AMS-224EN.
Refer to "III-1-13. Replenishing the designated places with grease" p.110 , "(1) Points to
be applied with JUKI Grease A" p.111 and "(2) Points to be applied with JUKI Grease B"
p.112 in the Instruction Manual for the AMS-224EN.
When the sewing machine has run out of grease,
apply grease to the points marked with arrows
shown below.
Running the sewing machine with no
grease can cause the sewing machine
failure and noise.
(3)
(4)
Rack
Pinion