JUKI DDL-900B Instruction Manual

DDL-900B

INSTRUCTION MANUAL

I. SPECIFICATIONS ........................................................................................ 1

II. SET-UP ........................................................................................................ 3

1. Installation ......................................................................................................................................... 3

2. Installing the pedal sensor ...............................................................................................................4

3. Installing the power switch (for CE) ................................................................................................ 4

4. Connecting the connector ...............................................................................................................5

5. How to install the power plug .......................................................................................................... 6

6. Attaching the connecting rod ..........................................................................................................6

7. Winding the bobbin thread ..............................................................................................................7

8. Adjusting the height of the knee lifter ............................................................................................. 8

9. Installing the thread stand ...............................................................................................................8

10. Lubrication ........................................................................................................................................9

11. Adjusting the amount of oil (oil splashes) .................................................................................... 10

12. Attaching the needle .......................................................................................................................12

13. Setting the bobbin into the bobbin case ......................................................................................13

14. Adjusting the stitch length .............................................................................................................13

15. Presser foot pressure ..................................................................................................................... 13

16. Hand lifter ........................................................................................................................................13

17. Adjusting the height of the presser bar ........................................................................................ 14

18. Threading the machine head .........................................................................................................14

19. Thread tension ................................................................................................................................15

20. Thread take-up spring ....................................................................................................................15

21. Adjusting the thread take-up stroke .............................................................................................15

22. Needle-to-hook relationship ..........................................................................................................16

23. Height of the feed dog .................................................................................................................... 16

24. Tilt of the feed dog .......................................................................................................................... 17

25. Adjusting the feed timing ...............................................................................................................17

26. Counter knife ................................................................................................................................... 18

27. Pedal pressure and pedal stroke ...................................................................................................18

28. Adjustment of the pedal .................................................................................................................19

29. Marker dots on the handwheel ......................................................................................................19

III. FOR THE OPERATOR ............................................................................. 20

1. Operating procedure of the sewing machine ............................................................................... 20

2. Setting procedure of the machine head .......................................................................................21

3. Operation panel built in the machine head ..................................................................................22

4. Operating procedure of the sewing pattern .................................................................................23

5. One-touch setting ...........................................................................................................................25

6. Setting of functions ........................................................................................................................26

7. Production support function .........................................................................................................27

8. Setting of thread clamp (NB type only) .........................................................................................29

9. Function setting list ........................................................................................................................ 31

10. Detailed explanation of selection of functions ............................................................................35

11. Automatic compensation of neutral point of the pedal sensor .................................................. 45

12. Selection of the pedal specications ............................................................................................ 46

13. Setting of the auto lifter function ..................................................................................................46

14. Selecting procedure of the key-lock function .............................................................................. 47

15. Initialization of the setting data .....................................................................................................47

16. LED hand light .................................................................................................................................48

17. Height adjustable one-touch type reverse stitching switch ....................................................... 48

IV. MAINTENANCE ....................................................................................... 49

1. Adjusting the machine head ..........................................................................................................49

2. Error codes ...................................................................................................................................... 50

I. SPECIFICATIONS

Supply voltage Single phase 220V/230V/240V

Frequency 50Hz/60Hz

Operating environment

Input 210VA

Temperature : 5 to 35˚C

Humidity 35 - 85 %

DDL-900B-

S : Light- to Medium-weight materials

H : Heavy-weight materials

DDL-900B-S DDL-900B-H

Application

Max. sewing speed 5,000 sti/min 4,000 sti/min

Thread trimming speed 210 sti/min 210 sti/min

Stitch length 4 mm 5 mm

Presser foot lift (by knee lifter) 13 mm 13 mm

Needle

Lubricating oil JUKI CORPORATION GENUINE OIL 7

Noise

Light- to Medium-weight materials Heavy-weight materials

DB × 1 (#14) #9 to 18, 134 (Nm 90) Nm

65 to 110 (for CE)

- Equivalent continuous emission

sound pressure level (LpA) at the

workstation :

A-weighted value of 81.0 dB; (Includes

KpA = 2.5 dB); according to ISO

10821- C.6.2 -ISO 11204 GR2 at

4,000 sti/min.

A-weighted value of 80.0 dB; (Includes

KpA = 2.5 dB); according to ISO

10821- C.6.2 -ISO 11204 GR2 at

3,500 sti/min.

- Equivalent continuous emission

sound pressure level (LpA) at the

workstation :

A-weighted value of 83.0 dB; (Includes

KpA = 2.5 dB); according to ISO

10821- C.6.2 -ISO 11204 GR2 at

4,000 sti/min.

A-weighted value of 80.0 dB; (Includes

KpA = 2.5 dB); according to ISO

10821- C.6.2 -ISO 11204 GR2 at

3,500 sti/min.

DB x 1 (#21) #20 to 23

• The sewing speed preset at the time of shipping : 4,000 sti/min

*1 : Needle used depends on the destination.

– 1 –

DRAWING OF TABLE

– 2 –

drilled hole

4xø3.4 on the bottom surface, depth 20 (Drill a hole at the time of set-up.)

Installing position of drawer stopper (on the reverse side)

ø18 drilled hole

3xø13 drilled hole

2xø3.5, depth 10

ø40±0.5

ø16 depth 30

ø16 depth 30 (for optional parts)

C1.5 to C2.5 (hinge side only)

II. SET-UP

1. Installation

1) Carry the sewing machine with two persons as

shown in the gure above.

Do not hold the handwheel D.

❸

❶

❷

❽

❶

A B

❹

❾

❸

❶

19.5 mm23.5 mm

❸

2) Do not put protruding articles such as the screw-

driver and the like at the location where the

sewing machine is placed.

3) Adjust so that the underside cover is supported at

the four corners of the table. Mount rubber hinge seat ❽ on the table and x it on the table with a

nail.

4) Two rubber seats ❶ for supporting the head por-

tion on the operator side A are xed on the extended portion of the table by hitting the nail ❷ , and the other two rubber cushion seats ❸ on the

hinge side B are xed by using a rubber-based adhesive. Then, underside cover ❹ is placed.

❼

5) Fit hinge ❼ into the opening in the machine bed,

and t the machine head to table rubber hinge ❽ before placing the machine head on cushions ❾

on the four corners.

6) Securely t machine head support stand ❻ in the hole (60 x 141 x ø16, depth 30) (refer to H in

DRAWING OF TABLE p. 2) in the table.

❽

❻

1. Be sure to install the machine head support rod ❻ supplied with the unit.

2. If a pair of scissors or the like is caught between the control box and the table, the control box cover can break. To prevent such an accident, do not place anything on C section.

3. Be aware that the control box breakage and/or oil leakage can occur if operating the sewing machine with the machine head support rod ❻ removed.

❼

– 3 –

2. Installing the pedal sensor

❶

3. Installing the power switch (for CE)

WARNING :

1. Be sure to attach the ground wire (green/yellow) to the specied location (on the ground side).

2. Take care not to allow terminals to come in contact with each other.

3. When closing the power switch cover, take care not to allow the cord to be caught under it.

1) Install the pedal sensor to the table with mounting

screws ❶ supplied with the unit.

It is necessary to install the pedal sensor at such

a position that the connecting rod is perpendicu-

lar to the table.

2) After the completion of installation of the pedal

sensor on the table, place the sewing machine

head on the table.

❷

1ø 220V-240V

❹

Blue Blue

❶

Do not insert the power plug into the plug

receptacle.

) Remove screw ❶ on the side face of the power

switch cover to open the power switch cover.

2) Pass AC input cord ❷(40145128), ❸(M6102461DAA) through the rear face of the

power switch. Bundle the cord with cable clip band ❹ to secure it.

3) Securely x the terminals of the AC input cord

❷(40145128), ❸(M6102461DAA) by tightening

the screws at the specied locations.

4) Close the power switch cover. Tighten screw ❶

on the side face of the power switch cover.

❷

Green/ Yellow

❸

Brown Brown

– 4 –

4. Connecting the connector

WARNING :

• To protect against personal injury resulting from abrupt start of the sewing machine, be sure to

turn the power OFF, unplug the machine and wait for ve minutes or more before installing the

pedal sensor.

• To prevent damage of device caused by maloperation and wrong specications, be sure to connect all the corresponding connectors to the specied places. (If any of the connectors is inserted into

a wrong connector, not only the device corresponding to the connector can break but also it can start abruptly, inviting the risk of personal injury.)

• To prevent personal injury caused by maloperation, be sure to lock the connector with lock.

• Do not connect the power plug until the connection of cords is completed.

• Fix the cords while taking care not to forcibly bend them or excessively clamp them with staples.

• As for the details of handling respective devices, read carefully the Instruction Manuals supplied with the devices before handling the devices.

❸

❷

❶

❹

Machine head connector

AC power supply

Pedal

Connector connection diagram

Do not insert the power plug into the wall outlet. Check to be sure that the power switch is turned OFF.

1) Connect the connectors listed below to the con-

trol box in the order of ❶ to ❸. ❶ Pedal sensor cable ❷ AC input cable ❸ Machine head connector For the connection ports of the cables, refer to

the connector layout drawing.

Be sure to fully insert the connectors into the corresponding ports until they are locked.

2) Draw out cable of the control box through cable

draw-out hole ❹ to route it to the underside of

the sewing machine table.

Underside of the table

Pedal sensor

❶

❻

Slack

❺

❹

❺

❷

Underside of the table

❺

Pedal sensor

❶

Slack

❺

(For CE)

❹

❺

❷

3) Fix pedal sensor cable ❶ and AC input cable ❷

with a staple ❺.

4) Attach the solenoid cover with two solenoid cover

setscrews ❻ which are supplied with the unit as

accessories.

Take care not to allow the cords to be caught under the cover when attaching the cover.

– 5 –

5. How to install the power plug

WARNING :

1. Be sure to attach the ground wire (green/yellow) to the specied location (on the ground side).

2. Take care not to allow terminals to come in contact with each other.

1ø 220-240V

Blue

Brown

Green / Yellow (ground wire)

AC 220-240V

❶

1) Connect the power cord to power plug ❶. Con-

nect the blue and brown wires (1ø) to the power

supply side and the green/yellow wire to the earth

side as illustrated in the gure.

1. Be sure to prepare the power plug ❶

which conforms to the safety standard.

2. Be sure to connect the ground lead (green/yellow) to the grounding side.

2) Check that the power switch is in the OFF state.

Then, insert the power plug ❶ coming from the

power switch into the plug receptacle.

In prior to the connection of the power plug ❶, re-check the supply voltage spec-

ication indicated on the control box.

* The power plug ❶ is different in shape ac-

cording to the destination of the sewing

machine.

6. Attaching the connecting rod

WARNING :

To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and a lapse of 5 minutes or more.

❸

❶

❷

❸

Fix connecting rod ❶ to installing hole of pedal lever ❷ with nut ❸.

– 6 –

7. Winding the bobbin thread

1) Insert the bobbin deep into the bobbin winder

❽

❸

❶

❷

❹

❻

❼

❻

❺

❻

6) In case that the bobbin thread is not wound evenly on the bobbin, loosen screw ❺ and adjust the height of bobbin thread tension ❽.

• It is the standard that the center of the bobbin is as high as the center of thread tension disk ❻.

• Adjust the position of thread tension disk ❻ to the direction of D when the winding amount of the bobbin

thread on the lower part of the bobbin is excessive and to the direction E when the winding amount of

the bobbin thread on the upper part of the bobbin is excessive.

After the adjustment, tighten screw ❺.

7) To adjust the tension of the bobbin winder, turn the thread tension nut ❼.

spindle ❶ until it will go no further.

2) Pass the bobbin thread pulled out from the

spool rested on the right side of the thread stand

following the order as shown in the gure on the

left. Then, wind clockwise the end of the bobbin

thread on the bobbin several times.

(In case of the aluminum bobbin, after winding

clockwise the end of the bobbin thread, wind

counterclockwise the thread coming from the

bobbin thread tension several times to wind the

bobbin thread with ease.)

3) Press the bobbin winder trip latch ❷ in the direc-

tion of A and start the sewing machine. The bob-

bin rotates in the direction of C and the bobbin thread is wound up. The bobbin winder spindle ❶

automatically as soon as the winding is nished.

4) Remove the bobbin and cut the bobbin thread

with the thread cut retainer ❸.

5) When adjusting the winding amount of the bobbin

thread, loosen setscrew ❹ and move bobbin winding lever ❷ to the direction of A or B. Then tighten setscrew ❹.

To the direction of A : Decrease

To the direction of B : Increase

1. When winding the bobbin thread, start the winding in the state that the thread between the

bobbin and thread tension disk ❻ is tense.

2. When winding the bobbin thread in the state that sewing is not performed, remove the needle thread from the thread path of thread take-up and remove the bobbin from the hook.

3. There is the possibility that the thread pulled out from the thread stand is loosened due to

the inuence (direction) of the wind and may be entangled in the handwheel. Be careful of the

direction of the wind.

– 7 –

8. Adjusting the height of the knee lifter

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

❶

1) The standard height of the presser foot lifted

using the knee lifter is 10 mm.

2) You can adjust the presser foot lift up to 13 mm

using knee lifter adjust screw ❶.

3) When you have adjusted the presser foot lift

to over 10 mm, be sure that the bottom end of needle bar ❷ in its lowest position does not hit presser foot ❸.

❸

9. Installing the thread stand

❷

1) Assemble the thread stand unit, and insert it in

the hole in the machine table.

2) Tighten nut ❶.

❶

– 8 –

10. Lubrication

WARNING :

1. Do not connect the power plug until the lubrication has been completed so as to prevent accidents due to abrupt start of the sewing machine,

2. To prevent the occurrence of an inammation or rash, immediately wash the related portions if oil

adheres to your eyes or other parts of your body.

3. If oil is mistakenly swallowed, diarrhea or vomitting may occur. Put oil in a place where children cannot reach.

❻

❷

❺

❹

❸

❶

1) Before running the sewing machine, remove

rubber plug ❶ from the top of the machine arm,

and add oil through the oil inlet using accessory funnel ❹ supplied with the sewing machine.

2) Fill the oil tank with the oil until the top end of

oil amount indicating rod ❸ comes between the upper engraved marker line A and the lower engraved marker line B of oil amount indicating window ❷.

If the oil is lled excessively, it will lead from the

junction between the oil shield and bed, or from

the junction between the rubber plug and bed,

or proper lubrication will not be performed. So,

be careful. In addition, when the oil is vigorously

lled, it may overow from the oil hole. So, be

careful.

* When oil is added until MAX. line A is reached,

the oil quantity becomes 600 cc.

* Check the oil quantity while the sewing ma-

chine is at rest.

* Check the quantity of oil in the oil tank by view-

ing the oil surface from the side of oil amount indicating window ❷.

3) When you operate the sewing machine, rell oil if

the top end of oil amount indicating rod ❸ comes down to the lower engraved marker line B of oil amount indicating window ❷.

4) When you operate the machine after lubrication,

you will see splashing oil through oil sight window ❻ if the lubrication is adequate.

* Note that the amount of the splashing oil is

unrelated to the amount of the lubricating oil.

1. When you use a new sewing machine or a sewing machine after an extended period of disuse, use the sewing machine after performing break-in at 2,000 sti/min or less.

2. For the oil lubrication, purchase JUKI CORPORATION GENUINE OIL 7 (Part No. : MML007600CA).

3. Be sure to lubricate clean oil.

4. Be aware oil leakage can occur if the surface of added oil quantity exceeds MAX. line A.

5. Transporting the sewing machine with the sewing machine lled with oil can give rise to the

risk of oil leakage. Be sure to discharge oil from the sewing machine through drain cock ❺.

– 9 –

11. Adjusting the amount of oil (oil splashes)

WARNING :

Be extremely careful about the operation of the machine since the amount of oil has to be checked by turning the hook at a high speed.

(1) Conrmation of the amount of oil in the hook

Amount of oil (oil splashes) conrmation paper

①

25 mm

70 mm

Oil splashes conrmation paper

Position to conrm the amount of oil (oil splashes)

②

3 - 10 mm

Closely t the paper against the wall

surface of the bed.

* When carrying out the procedure described below in 2), remove the slide plate and take extreme caution

not to allow your ngers to come in contact with the hook.

1) If the machine has not been sufciently warmed up for operation, make the machine run idle for approxi-

mately three minutes. (Moderate intermittent operation)

2) Place the amount of oil (oil spots) conrmation paper under the hook immediately after the machine stops

running.

3) Check to be sure that the oil surface in the oil shield rests in the range between the "MAX. line" and the

"MIN. line".

4) Conrmation of the amount of oil should be completed in ve seconds. (Check the period of time with a

watch.)

(2) Adjusting the amount of oil (oil spots) in the hook

1) Tilt the sewing machine. Turn oil amount adjust-

ment screw ❶, which is mounted on the front

bushing of lower shaft, in the "+" direction (direc-

❶

tion A) to increase the oil amount (oil spots), or in the "-" direction (direction B) to decrease it.

* The oil-amount +/- indication mark is shown on

2) After the amount of oil in the hook has been

properly adjusted with the oil amount adjustment screw ❶, make the sewing machine run idle for

approximately 30 seconds to check the amount

of oil in the hook.

the underside cover.

– 10 –

(3) Sample showing the appropriate amount of oil in the hook

Appropriate amount of oil (small)

Splashes of oil from the hook

1 mm

Appropriate amount of oil (large)

Splashes of oil from the hook

2 mm

1) The amount of oil shown in the samples on the

left should be nely adjusted in accordance with

sewing processes. Be careful not to excessively

increase/decrease the amount of oil in the hook.

(If the amount of oil is too small, the hook will be

seized (the hook will be hot). If the amount of oil

is too much, the sewing product may be stained

with oil.)

2) Check the oil amount (oil splashes) three times

(with three sheets of paper).

(4) Conrmation of the amount of oil supplied to the face plate parts

Amount of oil (oil splashes) conrmation paper

①

25 mm

70 mm

Position to conrm the amount of oil

②

(oil splashes)

Oil splashes

conrmation paper

* When carrying out the work described below in

2), remove the face plate and take extreme cau-

tion not to allow your ngers to come in contact

with the thread take-up lever.

1) If the machine has not been sufciently warmed

up for operation, make the machine run idle for

approximately three minutes. (Moderate intermit-

tent operation)

2) Place the amount of oil (oil spots) conrmation

paper under the hook immediately after the ma-

chine stops running.

3) Check to be sure that the oil surface in the oil

shield rests in the range between the "MAX. line"

and the "MIN. line".

4) The time required for the conrmation of the

amount of oil (oil splashes) should be completed

in ten seconds. (Measure the period of time with

a watch.)

(5) Adjusting the amount of oil supplied to the face plate parts

1) Adjust the amount of oil supplied to the thread

take-up and needle bar crank ❷ by turning adjust

Maximum

❶

Minimum

❷

❶

– 11 –

pin ❶.

2) The minimum amount of oil is reached when

marker dot A is brought close to needle bar crank ❷ by turning the adjust pin in direction B.

3) The maximum amount of oil is reached when

marker dot A is brought to the position just

opposite from the needle bar crank by turning the adjust pin in direction C.

(6) Sample showing the appropriate amount of oil supplied to the face plate parts

Appropriate amount of oil (small)

plashes of oil from the thread take-up lever

1 mm

Appropriate amount of oil (large)

plashes of oil from the thread take-up lever

2 mm

1) The state given in the gure shows the appropri-

ate amount of oil (oil splashes). It is necessary to

nely adjust the amount of oil in accordance with

the sewing processes. However, do not exces-

sively increase/decrease the amount of oil in the

hook. (If the amount of oil is too small, the face

plate parts will be hot or seize. If the amount of oil

is too much, the sewing product may be stained

with oil.)

2) Check the oil amount (oil splashes) three times

(with three sheets of paper).

12. Attaching the needle

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

Use the specied needle for the machine. Use the

proper needle in accordance with the thickness of

❶

D B

❷

thread used and the kinds of the materials.

1) Turn the handwheel until the needle bar reaches

the highest point of its stroke.

2) Loosen screw ❷, and hold needle ❶ with its indented part A facing exactly to the right in direction B.

3) Insert the needle fully into the hole in the needle

bar in the direction of the arrow until the end of

hole is reached.

4) Securely tighten screw ❷.

5) Check that long groove C of the needle is facing exactly to the left in direction D.

When polyester lament thread is used,

if the indented part of the needle is tilted

toward operator's side, the loop of thread

becomes unstable. As a result, hangnail

of thread or thread breakage may occur.

For the thread that such phenomenon

is likely to occur, it is effective to attach

the needle with its indented part slightly

slanting on the rear side.

– 12 –

13. Setting the bobbin into the bobbin case

14. Adjusting the stitch length

1) Pass the thread through thread slit A, and pull the thread in direction C. By so doing, the thread

will pass under the tension spring and come out from notch B.

2) Check that the bobbin rotates in the direction of

the arrow when thread is pulled.

* The dial calibration is in millimeters (reference

value).

1) Turn stitch length dial ❶ in the direction of the

arrow, and align the desired number to marker dot A on the machine arm.

❶

15. Presser foot pressure

29 to 32 mm

❷

16. Hand lifter

❶

1) Loosen nut ❷. As you turn presser spring regulator ❶ clockwise (in direction A), the presser foot

pressure will be increased.

2) As you turn the presser spring regulator ❶ counter-clockwise (in direction B), the pressure will be

decreased.

3) After adjustment, tighten nut ❷.

The standard value of the pressure regulating thumb

screw is 29 to 32 mm.

1) The presser foot is lifted by moving the lever

upward.

2) The presser foot is lowered by moving the lever

downward.

– 13 –

17. Adjusting the height of the presser bar

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

❶

18. Threading the machine head

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

1) Loosen setscrew ❶, and adjust the presser bar

height or the angle of the presser foot.

2) After adjustment, securely tighten the setscrew ❶.

[NB type]

(Note) Be sure to pass the thread through the section A.

– 14 –

19. Thread tension

❶

❷

❸

(1) Adjusting the needle thread tension

1) The length of thread remaining at the needle tip after thread trimming is shortened by turning tension regulating nut No. 1 ❶ clockwise in direction A.

2) It is lengthened by turning the nut counterclockwise in direction B.

3) The needle thread tension is increased by turning tension regulating nut No. 2 ❷ clockwise in direction C.

4) It is decreased by turning the nut counterclockwise in direction D.

20. Thread take-up spring

❶

❷

❸

❶

❺

❹

(2) Adjusting the bobbin thread tension

1) The bobbin thread tension is increased by turning tension regulating screw ❸ clockwise in direction E.

2) It is decreased by turning the screw counterclockwise in direction F.

(1) Changing the stroke of thread take-up

spring ❶

1) Loosen setscrew ❷.

2) As you turn tension post ❸ clockwise (in direction A), the stroke of the thread take-up spring will be increased.

3) As you turn tension post ❸ counterclockwise (in direction B), the stroke will be decreased.

(2) Changing the pressure of thread take-up

spring ❶

1) Loosen setscrew ❷, and remove thread tension asm. ❺.

2) Loosen setscrew ❹.

3) As you turn tension post ❸ clockwise (in direction A), the pressure will be increased.

4) As you turn the tension post ❸ counterclockwise (in direction B), the pressure will be decreased.

21. Adjusting the thread take-up stroke

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

❶

1) When sewing heavy-weight materials, move thread guide ❶ to the left (in direction A) to increase the length of thread pulled out by the thread take-up.

2) When sewing light-weight materials, move thread guide ❶ to the right (in direction B) to decrease the length of thread pulled out by the thread takeup.

3) Normally, thread guide ❶ is positioned in a way that marker line C is aligned with the center of the screw.

– 15 –

22. Needle-to-hook relationship

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

❶

C D

❸

A ❷

DDL-900B 0.04 to 0.10

If the clearance between the blade point of hook and the needle is smaller than the

specied value, the blade point of hook

will be damaged. If the clearance is larger, stitch skipping will result.

❹

Dimension F (mm)

A B

❺

Adjust the timing between the needle and the hook as follows :

1) Turn the handwheel to bright the needle bar down to the lowest point of its stroke, and loosen setscrew ❶.

Adjusting the needle bar height.

2) [For a DB/DP needles]

Align marker line A on the needle bar ❷ with the

bottom end of the needle bar lower bushing ❸, then tighten clamping screw ❶ of the needle bar

connection.

[For a DA needle] Align marker line C on the needle bar ❷ with the

bottom end of the needle bar lower bushing ❸, then tighten clamping screw ❶ of the needle bar connection.

Adjusting position of the hook ❺.

3) [For a DB/DP needles]

Loosen three setscrews of the hook, turn the

handwheel and align marker line B on ascending the needle bar ❷ with bottom end of the needle bar lower bushing ❸.

[For a DA needle] Loosen three setscrews of the hook, turn the

handwheel and align marker line D on ascending the needle bar ❷ with bottom end of the needle bar lower bushing ❸.

4) After making the adjustments mentioned in the above steps, align the blade point E of hook ❺ with the center of needle ❹. Provide a clearance of dimension F (reference value) between the needle ❹ and the hook ❺, then securely tighten three setscrews of the hook.

23. Height of the feed dog

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

❶

❷

0.75 to 0.85 mm (S type)

1.15 to 1.25 mm (H type)

To adjust the height of the feed dog :

1) Loosen screw ❷ of crank ❶.

2) Move the feed bar up or down to make adjust-

ment.

3) Securely tighten screw ❷.

If the clamping pressure is insufcient,

the motion of the forked portion becomes heavy.

– 16 –

24. Tilt of the feed dog

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

❶

Front up b Standard

Front down d Throat plate

25. Adjusting the feed timing

1) The standard tilt (horizontal) of the feed dog is obtained when marker dot A on the feed bar shaft is aligned with marker dot B on feed rocker ❶.

2) To tilt the feed dog with its front up in order to

prevent puckering, loosen the setscrew, and

turn the feed bar shaft 90˚ in the direction of the

arrow, using a screwdriver.

3) To tilt the feed dog with its front down in order to

prevent uneven material feed, turn the feed bar

shaft 90˚ in the opposite direction from the arrow.

Whenever the feed dog tilt is adjusted, the feed dog height will be changed. So, it is necessary to check the height after tilt adjustment.

❷

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

1) Remove rubber plug ❹ from the top surface of the machine arm.

2) Loosen setscrews ❷ and ❸ of feed eccentric cam ❶ through adjustment hole A. Adjust the feed timing by moving the feed eccentric cam in the direction of the arrow or in the opposite

direction of the arrow. Then, rmly tighten the

setscrews.

3) For the standard adjustment, adjust so that the top surface of feed dog and the top end of needle

eyelet are ush with the top surface of throat

plate when the feed dog descends below the throat plate.

4) To advance the feed timing in order to prevent uneven material feed, move the feed eccentric cam in the direction of the arrow.

5) To delay the feed timing in order to increase stitch tightness, move the feed eccentric cam in the opposite direction from the arrow.

❶

❸

❹

Standard feed timing

Advanced feed timing

Delayed feed timing

– 17 –

Be careful not to move the feed eccentric cam too far, or else needle breakage may result.

26. Counter knife

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

When sharpening again the counter knife ❶, extra special care must be taken on the handling of the knife.

Fig A

❶

Oil Stone

❷

❸

❶

❹

* In the case the thread cannot be trimmed sharply, re-sharpen counter knife ❶ as illustrated in Fig. A be-

fore the knife has become dull and re-place it correctly.

1) Loosen setscrew ❸ of bobbin case opening lever ❷, and remove the bobbin case opening lever.

2) Loosen setscrew ❹, and remove counter knife ❶.

3) To install the counter knife ❶, follow the above procedure in reverse order.

27. Pedal pressure and pedal stroke

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

❶

❷

❸

(1) Adjusting the pressure required to

depress the front part of the pedal

1) This pressure can be changed by changing the mounting position of pedaling pressure adjust spring ❶.

2) The pressure decreases when you hook the spring on the left side.

3) The pressure increases when you hook the spring on the right side.

(2) Adjusting the pressure required to

depress the back part of the pedal

1) This pressure can be adjusted using regulator screw ❷.

2) The pressure increases as you turn the regulator screw in.

3) The pressure decreases as you turn the screw out.

(3) Adjusting the pedal stroke

1) The pedal stroke increases when you insert connecting rod ❸ into the right hole.

– 18 –

28. Adjustment of the pedal

WARNING :

Be sure to turn the power OFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine.

❶

❷

❺

(1) Installing the connecting rod

1) Move pedal ❸ to the right or left as illustrated by the arrows so that motor control lever ❶ and connecting rod ❷ are straightened.

(2) Adjusting the pedal angle

1) The pedal tilt can be freely adjusted by changing the length of the connecting rod ❷.

2) Loosen adjust screw ❹, and adjust the length of connecting rod ❺.

❹

29. Marker dots on the handwheel

❶

(Blue)

❷

(Green)

❸

Check the marker dots on the handwheel with the

presser foot lifted after thread trimming. ・ The upper stop position of the needle bar is

reached when marker dot ❶ on the cover is aligned with blue marker dot ❷ on the handwheel.

・ The operating timing of the thread trimming cam

is when marker dot ❶ on the cover is aligned with green marker dot ❸ on the handwheel.

– 19 –

III. FOR THE OPERATOR

1. Operating procedure of the sewing machine

❶

❷

❸

1) Press power switch ❶ to turn the power ON. Power switch ❶ is in the ON state when the "I" mark side is pressed. It is in the OFF state when

the "○" side is pressed.

If the power indicator LED on the panel does not light up after having turned ON

* The mounting location

and shape of the power switch ❶ differs with the place of destination.

the power switch ❶, immediately turn OFF the power switch ❶ and check the supply voltage. In addition, in such a case as this, re-turn ON the power switch when 2 to 3 minutes or more have passed after turning OFF the power switch ❶.

2) When the power switch ❶ is turned ON, the sewing machine automatically turns to bring the needle bar to its UP position in the case the needle bar is not in that position.

When turning ON the power, the needle

❶

(For CE)

bar moves. Do not put your hands or things under the needle.

3) The pedal is operated in the following four steps:

❹

a. The machine runs at low sewing speed when you

lightly depress the front part of the pedal. ❷

b. The machine runs at high sewing speed when

you further depress the front part of the pedal. ❷ (If the automatic reverse feed stitching has been preset, the machine runs at high speed after it completes reverse feed stitching.)

c. The machine stops (with its needle up or down) when you reset the pedal to its original position. d. The machine trims threads when you fully depress the back part of the pedal. ❹ * When the auto-lifer (AK device) is used, one more operating switch is provided between the sewing ma-

chine stop switch and thread trimming switch. The presser foot goes up when you lightly depress the back part of the pedal ❸, and if you further depress the back part ❹, the thread trimmer is actuated.

❺

❻

4) Reverse feed stitching at the beginning of sewing, reverse feed stitching at the end of sewing and various sewing patterns can be set on built-in panel

5) When one-touch type reverse feed switch ❻ is

pressed, the sewing machine performs reverse feed stitching.

❺ of the machine head.

6) When you have nished sewing, conrm rst that the sewing machine has stopped. Then, press power

switch ❶ to turn the power OFF.

1. Do not place your hands under the lever (section A in the gure) in the case of operating the

one-touch type reverse feed switch or of automatic reverse feed.

2. In the case the machine is not used for a long time, remove the power plug from the plug

receptacle.

– 20 –

2. Setting procedure of the machine head

* This item has been factory-adjusted at the time of shipment. Carry out the machine head setting procedure

in the case the control box is replaced, or in any case where it is necessary.

1) Refer to "III-6. Setting of functions" p.26 and

call the function setting No. 95.

2) Press switch 󱢹.

❾

󱢹

3) Select the machine head type by pressing

and switches ❾

dL90

For DDL-900B

4) After the selection of the type of the machine

head, press switch 󱢹 to conrm the se-

lection. The settings are automatically initialized

according to the type of the machine head.

󱢹

– 21 –

3. Operation panel built in the machine head

Ⓐ

❶

Ⓓ Ⓑ

❷

❹

󱢳

❾

Used to change over the automatic reverse

❶

❷

❸

❹

❺

❻

❼

❽ 󱢹

feed stitching at the beginning of sewing

between enable and disable. Used to change over the automatic reverse

feed stitching at the end of sewing between

enable and disable. Used to change over the automatic double

reverse feed stitching at the beginning of

sewing between enable and disable. Used to change over the automatic double

reverse feed stitching at the end of sewing

between enable and disable. Used to change over the reverse feed

stitching pattern between enable and

disable.

Used to change over the overlapped stitch-

ing pattern between enable and disable.

Used to change over the constant-dimen-

sion stitching pattern between enable and

disable.

Display section A

󱢸 󱢹

❾

󱢳

󱢴

󱢵

󱢶

󱢷

󱢸

󱢴

Ⓖ ❼

󱢵 Ⓕ ❻

󱢶 Ⓗ

❽

󱢷

Used to change the contents displayed

on the display section.

Used to carry out compensating stitch-

ing in half-stitch steps.

Used to change over the one-shot

automatic stitching between enable and

disable.

Used to change over the soft-start func-

tion between enable and disable.

Used to change over the needle bar

stop position at the time of stopping

sewing between up and down. Used to change over the thread trim-

ming operation between enable and

disable.

Used to change over the operation

mode to the function setting mode.

Used to conrm the settings changed

under the function setting mode.

– 22 –

4. Operating procedure of the sewing pattern

Refer to the Instruction Manual for each operation panel for how to operate sewing patterns us-

ing other operation panel than the built-in panel of the machine head.

(1) Reverse feed stitching pattern

Reverse feed stitching at sewing start and reverse feed stitching at sewing end can be separately pro-

grammed.

[Setting procedure of the reverse feed stitching]

1) Effective/ineffective of the reverse feed stitching

pattern can be changed over by pressing switch ❺.

When the reverse feed stitching pattern is en-

Ⓖ ❼

Ⓕ ❻

Ⓗ ❽

abled, LED Ⓔ lights up and the display section

A shows the number of reverse feed stitches at

the beginning of sewing and that at the end of

sewing.

Use and switches ❾ to change the num-

ber of stitches for the target process (A, B, C or

D). (The number of stitches that can be set is 0 to

15.)

The numbers of stitches for processes A, B, C

and D are displayed on display section A from

left to right in the order from A to D.

❶

❷ ❹

Display section A

❸

❾

❺Ⓔ

2) Enable/disable of the reverse feed stitching at the beginning of sewing is set by pressing switch ❶.

Enable/disable of the reverse feed stitching at the end of sewing is set by pressing switch ❷.

Enable/disable of the double reverse feed stitching at the beginning of sewing is set by pressing

switch ❸.

Enable/disable of the double reverse feed stitching at the end of sewing is set by pressing switch ❹.

The number which exceeds 9 is indicated as follows:

A = 10, b = 11, c = 12, d = 13, E = 14, and F = 15.

(2) Overlapped stitching pattern

Overlapped stitching pattern can be programmed.

A : Number of stitches of normal stitching setting : 0 to 15 stitches

B : Number of stitches of reverse stitching setting : 0 to 15 stitches

C : Number of stitches of normal stitching setting : 0 to 15 stitches

D : Number of times of repetition : 0 to 15 times

1. When process D is set to 5 times, the sewing is repeated as

A → B → C → B → C.

2. The number which exceeds 9 is indicated as follows:

A = 10, b = 11, c = 12, d = 13, E = 14, and F = 15.

[Setting procedure of the overlapped stitching]

1) Effective/ineffective of the overlapped stitching pattern can be changed over by pressing switch ❻.

When the overlapped stitching pattern is rendered effective, LED Ⓕ lights up.

2) Press and switches ❾ to change the number of stitches for target process (A, B, C or D).

– 23 –

(3) Constant-dimension stitching pattern

The constant-dimension stitching pattern can be set.

[How to set the constant-dimension stitching]

• Straight stitching

1) Press switch ❼ to select the constant-dimension sewing pattern.

When the constant-dimension stitching pattern is enabled, LED Ⓖ lights up.

2) When the constant-dimension sewing pattern is selected, the number of stitches of process E can be set

by pressing switch ❼ again.

3) The number of stitches (0 to 999) for the constant-dimension stitching can be selected by pressing and switches ❾.

• Label sewing

1) Press switch ❽ to select the label sewing.

When the selection is effective, LED Ⓗ lights up.

Every time switch ❽ is pressed, the indication of processes E to H will be changed over.

2) Display the target process the number of stitches of which is to be changed. In this state, the number of stitches of the processes (EFGH) can be changed by pressing and switches ❾.

– 24 –

5. One-touch setting

A part of function setting items can be easily changed in the normal sewing state.

Keep switch 󱢸 held pressed (for two seconds

or more) to carry out setting.

* If the indication shown on the screen does not

change, keep the switch held pressed again.

❾

󱢸󱢳

󱢹

[Setting items]

SPd ( )

When function setting No. 20 is set at "0": nip ( )

When function setting No. 20 is set at "1" : Wip ( )

TrM ( )

n. ( )

[Setting procedure (example: WiP)]

1) Press and switches ❾ to select the setting item. (Example: WiP)

2) Press switch 󱢹. The current set value is displayed. (Example: on)

Sewing speed

Thread clamp (wiper) operation : ON/OFF

Thread trimming operation after one-shot automatic stitch-

ing: ON/OFF

Function setting

3) Press and switches ❾ to change the set value. (Example: oFF)

4) Press switch 󱢹 to conrm the set value.

5) Press

1. In the case the function setting (n.) is selected, operation using switch 󱢸 cannot be

carried out. Once the setting of the function setting is nished, press switch 󱢳 to

nish setting. (Refer to "III-6. Setting of functions" p.26 for further details about setting of

functions.)

2. Once the power switch is turned off, be sure to wait for ten seconds or more before turning

it on again. If the power is re-turned on immediately after it has been turned off, the sewing

machine may not operate normally. In such a case, turn the power on again correctly.

switch 󱢸 to nish the one-touch setting.

– 25 –

6. Setting of functions

Set value for the function setting can be changed.

❾

󱢸 ❾

1) Turn the power ON while keeping switch

󱢸 held pressed.

The indication on the display section is changed

to "n. ".

The numeric character displayed on the right side

of "n." represents the function setting number.

(The gure shows the case of "No. 96 Maximum

sewing speed".)

2) Press and switches ❾ to change the

number of function setting.

and switches ❾' (two switches on

the left) are used for changing the number

in the "fast-feed" mode.

3) Press switch 󱢹 to change the setting.

The indication is changed to the set value.

(The gure shows the case where the set value is

changed from the indication "n.96" to "4000" (set

󱢳

⇩

󱢹

❾

value) by pressing switch 󱢹.)

4) Press and switches ❾ to change the set

value.

5) Press switch 󱢹 to conrm the set value.

6) The display returns to the state described in 1).

To additionally change the set value for other

function setting numbers, repeat the steps of

procedure from 2).

When you have completed the set value

changing, press switch 󱢳. The sewing

machine is restored to its normal sewing state.

– 26 –

7. Production support function

The production support function enables "sewing counting", "bobbin-thread counting" and "number of

stitches counting".

Ⓒ

Ⓐ

Ⓓ Ⓑ

Ⓔ

Ⓕ

Ⓖ

1) When switch 󱢸 is pressed while the sew-

ing machine is in the sewing state, the product

support function is invoked.

At this time, LEDs Ⓐ, Ⓑ, Ⓒ and Ⓓ light up.

2) Every time switch 󱢸 is pressed, the

function display will be changed over in the

order of the "sewing counting function", the

"bobbin-thread counting function", the "number

of stitches counting function" and the "sewing

󱢸

state".

* Sewing counting function (LED Ⓔ lights up)

The value indicated on the counter is increased every time the preset number of times of thread trimming

is reached.

It is possible to prohibit the sewing machine from starting when the value indicated on the counter reach-

es the preset one, if desired.

* Bobbin thread counting function (LED Ⓕ lights up)

The number of stitches sewn is detected. The preset value indicated on the counter is subtracted accord-

ing to the detected number of stitches.

Once the value indicated on the counter becomes a negative value, the bobbin thread has to be replaced.

* Number of stitches counting function (LED Ⓖ lights up)

The number of stitches is counted from the start of sewing until thread trimming is carried out.

[Sewing counting function]

Display section A

Ⓒ

Ⓔ 󱢴

1) Counted value is indicated on display section A.

2) The value on the counter can be changed by

Ⓐ

pressing and switches ❾.

3) The value on the counter is reset to 0 (zero) by

Ⓓ Ⓑ

pressing switch 󱢴.

4) The sewing counting function setting can be

changed by keeping switch 󱢸 held

pressed (for two seconds).

5) The function setting changing operation is n-

ished by pressing switch 󱢸.

󱢸❾

The setting items which can be changed are as follows:

* No. 181 ..... Target number of products

* No. 182 ..... Operation to be carried out when the target number of products is reached

0 : No operation

1 : Sewing machine operation is disabled

When the value on the counter equals to the target number of products, the sewing ma-

chine will not run even if the pedal is depressed. At this time, the display automatically

changed to “sewing counter function”. To release the sewing machine from the disabled state, the value on the counter is reset to 0 (zero) by pressing switch 󱢴.

* No. 183 ..... The number of times of thread trimming to be carried out during one sewing sequence

The number of times of thread trimming for stopping the sewing counter is set.

– 27 –

[Bobbin thread counting function]

Ⓒ

Ⓐ

Ⓓ Ⓑ

❾

[Number of stitches counting function]

Ⓒ

Ⓐ

Ⓓ Ⓑ

󱢴

Ⓕ

Ⓖ

1) Operate this function in the state where sewing is

nished.

The value on the counter cannot be changed if

thread trimming has not been carried out.

2) The value on the counter is reset to the initial

value by pressing switch 󱢴.

3) In this state, the initial value can be changed by

pressing and switches ❾.

1) The number of stitches is automatically counted

from the start of sewing until thread trimming is

carried out.

2) Once thread trimming is carried out, the value on

the counter is reset to 0 (zero).

– 28 –

8. Setting of thread clamp (NB type only)

* State at the time of shipment from the factory is ON for NB equipment.

1. Turn the power ON while keeping switch 󱢸

held pressed.

The indication on the display section is changed

to "n. ".

The numeric character displayed on the right side

of "n. " represents the function setting number.

2. Press and switches ❾ to change the num-

ber of function setting.

* and switches ❾' (two switches on the

󱢸󱢳 󱢵󱢹 ❾

❾'

left) are used for changing the number in the

"fast-feed" mode.

⇩

3. Press switch 󱢹 to change the setting.

The indication is changed to the set value. (The

default value has been factory-set to "1" (wiper).)

⇩

4. Press and switches ❾ to change the set

value to "0" (thread clamp).

5. Press switch 󱢹 to conrm the set value.

6. The display returns to the state described in 1.

To additionally change the set value for other

function setting numbers, repeat the steps of

procedure from 2.

* Thread clamp operation can be set by means

of function setting number 15.

0 : Thread clamp does not operate.

1 : Thread clamp operates.

7. When you have completed the set value chang-

ing, press switch 󱢳. The sewing machine is

restored to its normal sewing state.

[Response to problems occurring at the beginning of sewing]

• In the case needle thread breakage occurs when using a thin thread or fragile thread

• In the case needle thread is not tucked on the wrong side of material

• In the case needle thread breakage occurs when starting sewing from the material end (such as sewing

the material with needle thread tucked on the undersurface of material)

If any of the aforementioned problems occurs, the assist function which works to reduce the presser foot

pressure at the beginning of sewing can be set by using the auto-lifter device (AK85B)

* The AK85B can be optionally installed. (Part number: 40188851)

* In the case the AK85B is not used, the presser foot pressure should be reduced to allow the needle thread

to be released smoothly. (The recommended presser foot pressure is 30 N (3 kg) or less.)

Adjust the presser foot pressure and the sewing speed appropriately to prevent insufcient feed efcien-

cy due to jumping or other faults of the presser foot. Conrm the adjustment result by actually sewing the

material.

– 29 –

(Caution) 1. In the case the needle thread is left on the right side of the material when using thick thread,

it is necessary to change the set value of function setting number 152 to "320 - 350". After

the change, the time during which the thread is clamped will be longer, and it will be easier

to pull the needle thread under the material. (Default value: 290)

2. In the case the thread clamp function is set to ON state when the AK device is used, the mi-

cro-lifter function of the AK device is enabled at the start of sewing. The needle thread can

be drawn under the reverse side of the material by slightly oating the the presser foot. If

you do not need this function, set the function setting number 177 to "0". (Default value: 42)

3. When using the thread clamp device, make sure that switch 󱢵 (soft-start function) is in

its ON state (the lamp stays on). The soft-start function can be turned ON/OFF by pressing

switch 󱢵.

1. The amount of uplift of the presser foot above the throat plate varies according to the

material thickness of the item to be sewn and the presser foot pressure. Be sure to check the

actual condition before starting sewing.

2. If the adjustment value of the operating time of the AK85B is increased while the presser

foot pressure is high, the operating noise will become larger. Adjust the adjustment value of

the operating time of the AK85B and the pressure foot pressure while visually checking the

needle thread.

– 30 –

9. Function setting list

No. Item Description Setting range Default

1 Soft start function The number of stitches to be sewn at a low speed when the soft-start

2 Material end sensor

function

3 Thread trimming

function by material end sensor

4 Number of stitches for

material end sensor

5 Flicker reducing function Flicker reducing function

* 7 Unit of bobbin thread

counting down

* 8 Sewing speed of re-

verse feed stitching

12 Optional switch function

selection

function is used at the start of sewing. (* This setting is enabled when the thread clamp function is in the OFF

state.) 0 : The function is not selected. 1 to 9 : The number of stitches to be sewn under the soft-start mode.

Material end sensor function.

0 : Material end detection function is not operative.

1 : After detecting material end, the specied number of stitches (No. 4)

will be sewn, and the sewing machine will stop.

Thread trimming function by material end sensor.

0 : Automatic thread trimming function after detection of material end is

not operative.

1 : After detecting material end, the specied number of stitches (No.

4) will be sewn, and the sewing machine will stop and perform automatic thread trimming.

Number of stitches for material end sensor. Number of stitches from detection of material end to stop of the sewing machine.

0 : Flicker reducing function is not operative. 1 : Flicker reducing function is effective.

Unit of bobbin thread counting down

0 : 1 Count/10 stitches 1 : 1 Count/15 stitches 2 : 1 Count/20 stitches

Sewing speed of reverse feed stitching is set.

Switching of function of optional switch.

0 to 9

(Stitches)

0/1

0 to 19

(Stitches)

0/1

0 to 2

150 to 3,000

(sti/min)

1 9 0 0

o P T _

Ref.

page

* 13 Function of prohibiting

start of the sewing machine by bobbin thread counter

15 Thread clamp function

at the start of sewing

20 Changeover between

thread clamp and thread wiper

21 Function of automatic

presser foot lifting at pedal's neutral position

22 Needle up/down correc-

tion switch changeover function

25 Thread trimming oper-

ation after turning the handwheel by hand

* 27 Thread clamp sewing

speed

29 Back-tack initial opera-

tion time

30 Function of reverse feed

stitching on the way

31 Number of stitches of

reverse feed stitching on the way

32 Effective condition of

reverse feed stitching on the way when the sewing machine is stopping.

* Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the time of

delivery is changed, it is in danger of causing the machine to be broken or the performance to be deteriorated. If it is necessary to change the set value, please purchase the Engineer’s Manual and follow the instructions.

Function of prohibiting start of the sewing machine by bobbin thread counting

0 : When counting is out (-1 or less) Function of prohibiting start of the

sewing machine is not operative.

1 : When counting is out (-1 or less) Function of prohibiting start of the

sewing machine after thread trimming is operative.

2 : When counting is out (-1 or less), the sewing machine stops once.

Function of prohibiting start of the sewing machine after thread trimming is operative.

Operation of the thread clamp or of the wiper at the start of sewing is set.

0 : Thread clamp does not operate 1 : Thread clamp operates

This function item is used for changing over the operation of the thread clamp and the thread wiper.

0 : Thread clamp operates 1 : Thread wiper operates

Function of lifting presser foot when the pedal is in neutral position.

0 : Function of neutral automatic presser lifting is not operative. 1 : Selection of function of neutral presser lifting.

Function of the needle up/down correction switch is changed over.

0 : Needle up/down compensation 1 : One stitch compensation

Thread trimming operation after moving the needle away from its upper

or lower position by turning the handwheel by hand is specied.

0 : Thread trimming operation is carried out after turning the handwheel

by hand.

1 : Thread trimming operation is not carried out after turning the hand-

wheel by hand.

The sewing speed when the thread clamp operates is set.

This function sets the suction time of initial motion of back-tack solenoid.

Function of reverse feed stitching on the way

0 : Normal one-touch type reverse feed stitching function 1 : Function of reverse feed stitching on the way is operative.

(In the case the function of reverse feed stitching on the way is enabled, function No. 26 cannot be used.)

Number of stitches of reverse feed stitching on the way

Effective condition of reverse feed stitching on the way

0 : Function is not operative when the sewing machine stops. 1 : Function is operative when the sewing machine stops.

0 to 2

0/1

100 to MAX

(sti/min)

50 to 500

(ms)

0/1

0 to 19

(Stitches)

0/1

3 0 0

2 5 0

– 31 –

No. Item Description Setting range Default

33 Thread trimming

function by reverse feed stitching on the way

* 35 Sewing speed at a low

speed

* 36 Sewing speed of thread

trimming

37 Sewing speed of soft-

start

38 Sewing speed of one-

shot stitching

* 39 Operation-start pedal

stroke

* 40 Low speed section of

pedal

* 41 Starting position of lifting

presser foot by pedal

* 42 Starting position of

lowering presser foot

* 43 Pedal stroke 2 for start-

ing thread trimming

* 44 Pedal stroke for

reaching the maximum sewing speed

* 45 Corrected neutral posi-

tion of the pedal

47 Auto-lifter selecting

function

* 48 Pedal stroke 1 for start-

ing thread trimming

49 Lowering time of presser

foot

* 50 Pedal specication Type of pedal is selected.

51 Compensation of

solenoid-on timing of reverse feed stitching at the start of sewing

52 Compensation of

solenoid-off timing of reverse feed stitching at the start of sewing

53 Compensation of

solenoid-off timing of reverse feed stitching at the end of sewing

55 Foot lift after thread

trimming

56 Reverse revolution to lift

the needle after thread trimming

58 Function of holding

predetermined upper/ lower position of the needle bar

59 Function of Auto/Manual

change-over of reverse feed stitching at the start of sewing

* Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the time of

Thread trimming function by reverse feed stitching on the way

0 : Automatic thread trimming function after completion of reverse feed

stitching on the way is not operative.

1 : Automatic thread trimming after completion of reverse feed stitching

on the way is performed.

Lowest speed by pedal (The MAX value differs by machine head.)

Thread trimming speed (The MAX value differs by machine head.)

Sewing speed at the start of sewing (soft-start) (The MAX value differs by machine head.)

Sewing speed of one-shot stitching (The MAX value differs by machine head.)

The pedal position at which the sewing machine starts operation from the neutral position of the pedal (Pedal stroke)

Position where the sewing machine starts accelerating from pedal neutral position (Pedal stroke)

Position where the cloth presser starts lifting from pedal neutral position (Pedal stroke)

Starting position of lowering presser foot Stroke from the neutral position

Position 2 where the thread trimming starts from pedal neutral position (When the function of lifting presser foot by pedal is provided.) (Pedal stroke)

Position where the sewing machine reaches its highest sewing speed from pedal neutral position (Pedal stroke)

The neutral position of the pedal sensor is set.

Limitation time of waiting for lifting solenoid type auto-lifter device

Position where thread trimming starts from pedal neutral position (Standard pedal) (Pedal stroke)

Sets the time required until the lowering of the presser foot is completed after a depress on the pedal.

0 : Presser foot is not operated by the pedal (KFL) 1 : Presser foot is operated by the pedal (PFL)

Compensation of starting the solenoid for reverse feed stitching when reverse feed stitching at the start of sewing is performed. – 36 to 36

Compensation of releasing the solenoid for reverse feed stitching when reverse feed stitching at the start of sewing is performed. – 36 to 36

Compensation of releasing the solenoid for reverse feed stitching when reverse feed stitching at the end of sewing is performed. – 36 to 36

Function of lifting presser foot at the time of (after) thread trimming

0 : Not provided with the function of automatic lifting of work-clamp after

thread trimming

1 : Provided with the function of lifting presser foot automatically after

thread trimming

Function of reverse revolution to lift the needle at the time of (after) thread trimming

0 : Not provided with the function of reverse revolution to lift the needle

after thread trimming

1 : Provided with the function of reverse revolution to lift the needle after

thread trimming

Function of holding predetermined upper/lower position of the needle bar

0 : Not provided with the function of holding predetermined upper/lower

position of the needle bar

1 : Provided with the function of holding predetermined upper/lower

position of the needle bar (Holding force is weak.)

2 : Provided with the function of holding predetermined upper/lower

position of the needle bar (Holding force is medium.)

3 : Provided with the function of holding predetermined upper/lower

position of the needle bar (Holding force is strong.)

This function can specify the sewing speed of reverse feed stitching at the start of sewing.

0 : The speed will depend on the manual operation by pedal, etc.

1 : The speed will depend on the specied reverse feed stitching speed

(No. 8).

0/1

150 to MAX

(sti/min)

100 to MAX

(sti/min)

100 to MAX

(sti/min)

150 to MAX

(sti/min)

10 to 50

(0.1 mm)

10 to 100 (0.1 mm)

– 60 to –10

(0.1mm)

8 to 50

(0.1 mm)

– 60 to –10

(0.1 mm)

10 to 150 (0.1 mm)

–15 to 15 (0.1 mm)

10 to 600

(second)

– 60 to – 10

(0.1 mm)

0 to 500

(10 ms)

0/1

(10°)

0/1

0 to 3

0/1

2 0 0

2 1 0

8 0 0

2 0 0 0

3 0

6 0

- 2 1

1 0

- 5 1

1 5 0

6 0

- 3 5

1 4 0

The setting differs with the machine head.

Ref.

page

– 32 –

No. Item Description Setting range Default

60 Function of stop immedi-

ately after reverse feed stitching at the start of sewing

64 Change-over speed of

condensation stitch or EBT (end back tack)

70 Function of soft-down of

presser foot

71 Double reverse feed

stitching function

72 Sewing machine startup

selecting function

73 Retry function This function is used when needle cannot pierce materials .

* 76 One-shot function One-shot operation up to the material end is specied.

84 Initial motion suction

time of presser foot lifting solenoid

87 Function of pedal curve

selection

Function at the time of completion of reverse feed stitching at the start of sewing

0 : Not provided with the function of temporary stop of the sewing ma-

chine at the time of completion of reverse feed stitching at the start of sewing

1 : Provided with the function of temporary stop of the sewing machine

at the time of completion of reverse feed stitching at the start of sewing

Initial speed when starting condensation stitch or EBT

Presser foot is slowly lowered.

0 : Presser foot is rapidly lowered. 1 : Presser foot is slowly lowered.

Effective/ineffective of double reverse feed stitching is changed over. (Only used when the CP-18 is used.)

0 : Ineffective 1 : Effective

Current limit at the startup of sewing machine is specied.

0 : Normal (Current limit is applied during startup.) 1 : Rapid (Current limit is not applied during startup.)

0 : Retry function is not provided.

1 to 10 : Retry function is provided. (Setting of the needle bar returning

force)

0 : One-shot operation is not performed. 1 : One-shot operation is performed.

Suction motion time of presser foot lifting solenoid

Pedal curve is selected. (Improving pedal inching operation)

Sewing speed

0/1

0 to 250 (sti/min)

0/1

0 to 10

0/1

50 to 500

(ms)

0 to 2

1 8 0

1 0 0

Ref.

page

Pedal stroke

90 Initial motion up stop

function

91 Function of prohibiting

compensation operation after turning handwheel by hand

92 Function of reducing

speed of reverse feed stitching at the start of sewing

93 Function added to nee-

dle up/down compensating switch

95 Head selection function Machine head to be used is selected.

96 Max. sewing speed Max. sewing speed of the sewing machine head can be set. (The MAX

* 103 Needle cooler output

OFF delay time

120 Main shaft reference

angle compensation

121 Up position starting

angle compensation

122 DOWN position starting

angle compensation

* 150 Correction of the thread

clamp speed at the start of sewing

* 151 Thread clamp ON angle The angle at which the thread clamp is turned ON at the start of sewing

* 152 Thread clamp OFF

angle

* Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the time of

Automatic UP stop function is set immediately after turning ON the power.

0 : OFF 1 : ON

It is effective in combination with the machine head provided with tension release function.

0 : Tension release function is ineffective. 1 : Tension release function is effective.

Function to reduce speed at the time of completion of reverse feed stitching at the start of sewing.

0 : Speed is not reduced. 1 : Speed is reduced.

Operation of needle up/down compensating switch is changed after turning ON the power or thread trimming.

0 : Normal (Needle up/down compensating stitching only) 1 : One stitch compensating stitching is performed only when aforemen-

tioned changeover is made. (Upper stop / upper stop)

(When the machine head is changed, each setting item is changed to the initial value of the machine head.)

value differs by machine head.)

Delay time from the stop of sewing machine to the output OFF is speci-

ed using the needle cooler output function.

Main shaft reference angle is compensated.

Angle to detect UP position starting is compensated.

Angle to detect DOWN position starting is compensated.

Speed correction coefcient for the function of the thread clamp at the

start of sewing is set. 10 to 200

is set.

The angle at which the thread clamp is turned OFF at the start of sewing is set.

0/1

150 to MAX

(sti/min)

100 to 2000

(ms)

–50 to 50

–15 to 15

180 to 290

(°)

210 to 359

(°)

The setting differs with the machine head.

5 0 0

- 1 3

1 0

2 1 0

2 9 0

– 33 –

No. Item Description Setting range Default

* 177 Thread clamp AK oper-

ating time

181 Setting of a target value

for the production support function

182 Operation to be con-

ducted when the target value is achieved

183 Setting of the number of

times of thread trimming for the production support function

* 186 Soft start resetting angle An angle at which the start is reset is set.

187 Thread clamp sewing

speed resetting angle

* Do not change the set values with asterisk (*) mark as they are functions for maintenance. If the standard set value set at the time of

Function for setting the time for turning ON the AK which operates when the thread clamp is used.

A target value for the sewing counter of the production support function is set. 0 to 9999

Operation to be carried out when the sewing counter of the production support function reaches the target value is set.

0 : No operation 1 : The sewing machine does not operate even if the pedal is de-

pressed.

* In the case the function No. 13 is used, the setting of the function No.

182 is disabled.

The number of times of thread trimming at which the sewing counter of the production support function stops counting is set.

0 : The sewing counter stops counting when a value is entered to the

sewing counter using the optional input/output function.

1 to 20 : The sewing counter stops counting according to the preset

number of times of thread trimming

* This setting is enabled when the thread clamp operates.

This function item is used for setting the angle at which the sewing speed employed while the thread clamp is operating is reset. * This setting is enabled when the thread clamp operates.

0 to 1000

(ms)

0/1

0 to 20

180 to 900

(°)

0 to 720 (°)

4 2

7 8 0

1 3 0

Ref.

page

[Function setting of thread clamp device]

No. Item Description Setting range Default

15 Thread clamp function at

the start of sewing

20 Changeover of thread

clamp/wiper

27 Thread clamp sewing

speed

37 Sewing speed of soft-start Sewing speed at the start of sewing (soft-start) (The MAX value differs by

151 Thread clamp ON angle The angle at which the thread clamp is turned ON at the start of sewing is

152 Thread clamp OFF angle The angle at which the thread clamp is turned OFF at the start of sewing is

177 Thread clamp AK operat-

ing time

186 Soft start resetting angle An angle at which the soft-start (No.37) is reset is set.

187 Thread clamp sewing

speed resetting angle

Operation of the thread clamp at the start of sewing is set.

0 : Thread clamp does not operate 1 : Thread clamp operates

Function of thread clamp/wiper operation is changed over.

0 : Thread clamp operation 1 : Wiper operation

The sewing speed when the thread clamp operates is set.

machine head.)

set.

Function for setting the time for turning ON the AK which operates when the thread clamp is used. When the setting is “0”, AK does not operate.

* This setting is enabled when the thread clamp operates.

An angle at which the thread clamp sewing speed (No.27) is reset is set. * This setting is enabled when the thread clamp operates.

0/1

100 to MAX

(sti/min)

100 to MAX (sti/

min)

180 to 290 (°)

210 to 359 (°)

0 to 100 (ms)

180 to 900 (°)

0 to 720 (°)

3 0 0

8 0 0

2 1 0

2 9 0

7 8 0

1 3 0

4 2

– 34 –

10. Detailed explanation of selection of functions

① Selection of the soft-start function (Function setting No. 1)

The needle thread may fail to interlace with the bobbin thread at the start of sewing when the stitching

pitch (stitch length) is small or a thick needle is used. To solve such problem, this function (called “soft-

start”) is used to limit the sewing speed, thereby assuring successful formation of the starting stitches.

* This setting is enabled when the thread clamp function is in the OFF state.

1 to 9 : The number of stitches to be sewn under the soft-start mode.

The sewing speed limited by the soft-start function can be changed. (Function setting No. 37)

(The MAX. value differs by machine head.)

② Flicker reducing function (Function setting No. 5)

The function reduces ickering of the hand lamp at the start of sewing.

1 : Flicker reducing function is effective

(Caution) When the icker reducing function is set at the "Flicker reducing function is effective," the

0 : The function is not selected.

Data setting range : 100 to MAX. sti/min <10 sti/min>

0 : Flicker reducing function is ineffective

startup speed of the sewing machine decreases.

③ Selection of the optional input/output function (Function setting No. 12)

For some of the input/output ports, their functions can be changed.

1) Select function setting No. 12 with the operat-

ing procedure of function setting procedures 1)

through 3). Press switch 󱢹.

2) Referring to the tables on p.33 to p.34, select dis-

play No. (i1 to i5, o1 to o3) corresponding to the

connector number to which optional input/output is to be assigned, using and switches ❾.

Then, press switch 󱢹.

3) Referring to the tables on p.33 to p.34, select

❾

󱢹󱢸

optional input/output signal to be assigned, using

and switches ❾. Then, press

switch 󱢹.

4) Activate the signal using and switches

❾. Then, press switch 󱢹.

– 35 –

Example) To assign the thread trimming function to the input port "i01"

1i.

MT r

0i.

1) Select function setting No. 12 with the operating procedure of function

setting procedures 1) through 3).

2) Press switch 󱢹.

3) Select a port (for example, "i1") to be set by pressing and switches ❾.

4) Press switch 󱢹.

5) Select a function (for example, "Trm") by pressing and switches ❾.

6) Press switch 󱢹.

7) Activate the selected function by pressing and switches ❾.

8) Press switch 󱢹.

9) Finish function setting by pressing switch 󱢸.

– 36 –

Input function list

Function

code

10 TinH Function of prohibiting thread trim-

11 LSSW Low speed command input This function works as low speed switch for standing sewing

12 HSSW High speed command input This function works as high speed switch for standing sewing

13 USW Needle lifting function UP stop motion is performed when switch is pressed during

14 bT Reverse feed stitching switch input Reverse feed stitching is output as long as the switch is held

15 SoFT Soft start switch input The speed of stitch is limited to the predetermined soft-start

16 oSSW One-shot speed command switch

17 bKoS Backward one-shot speed com-

18 SFSW Safety switch input Rotation is prohibited.

19 AUbT Automatic reverse feed stitching

20 CUnT Sewing counter input Every time the switch is pressed, the sewing counter value is

Abbre-

viation

0 noP No function (Standard setting)

1 HS Needle up / down compensating

stitching

2 bHS Back compensating stitching Reverse feed stitching is performed at low speed while the

3 EbT Function of canceling once reverse

feed stitching at the end of sewing

4 TSW Thread trimming function This function is actuated as the thread trimming switch.

5 FL Presser foot lifting function This function is actuated as the foot lifter switch.

6 oHS One stitch compensating stitching Every time the switch is pressed, one stitch stitching operation

7 SEbT Function of cancel of reverse feed

stitching at start/end

8 Ed Material edge sensor input This function works as the input signal of material edge sensor.

9 LinH Function of prohibiting depressing

front part of pedal

ming output

input

mand switch input

cancellation/addition switch

Function item Remarks

Every time the switch is pressed, normal feed stitching by half

stitch is performed. (Same operation as that of up / down com-

pensating stitching switch on the panel.)

switch is held pressing.

By depressing the back part of the pedal after pressing the

switch, operation of reverse feed stitching is canceled once.

is executed.

By operating the optional switch, ineffective/effective can be

alternately changed over.

Rotation by pedal is prohibited.

Output of thread trimming is prohibited.

machine.

DOWN stop.

pressed.

speed as long as the switch is held pressed.

This function works as one-shot speed command as long as

the switch is pressed.

Reverse feed stitching is performed in accordance with the

one-shot speed command as long as the switch is held

pressed.

Every time the switch is pressed, reverse feed stitching at sew-

ing start or reverse feed stitching at sewing end is canceled or

added.

increased.

Input function connectors

Connector No. Pin No. Display No. Function Initial value of No. 12

CN22 5 i.1 Reverse feed stitching switch input bT

CN20 7 i.2 Thread trimming switch input TSW

CN20 11 i.3 Low-speed revolution switch input LSSW

CN20 9 i.4 High-speed revolution switch input HSSW

CN20 5 i.5 Presser foot lifting switch input FL

– 37 –

Output function list

Function

code

0 noP No function (Standard setting)

1 TrM Thread trimming output Output of thread trimming signal

2 WiP Thread wiper output Output of thread wiper signal

3 TL Thread release output Output of thread release signal

4 FL Presser lifter output Output of presser lifting signal

5 bT Reverse feed stitching output Output of reverse feed stitching signal

6 EbT EBT cancel monitor output State of one time cancel of reverse feed stitching at end func-

7 SEbT Reverse feed stitching at start/end

8 AUbT Sewing start/end cancellation/addi-

9 SSTA Sewing machine stop state output Sewing machine stop state is output.

10 CooL Needle cooler output Output for needle cooler

11 bUZ Buzzer output It is output when the bobbin counter set value has been ex-

12 LSWo Revolution command output Revolution demanding command state is output.

Abbre-

viation

Function item Remarks

cancel monitor output

tion monitor output

tion is output.

State of cancel of reverse feed stitching at start/end is output.

State of cancel or addition of automatic reverse feed stitching

is output.

ceeded, an error has occurred or the bobbin thread remaining

amount is detected.

Output function connector

Connector No. Pin No. Display No. Function Initial value of No. 12

CN22 3 o.1 Reverse feed stitching output bT

CN22 7 o.2 Thread trimming output TrM

CN22 14 o.3 Revolution request input LSWo

– 38 –

④ Needle up/down switch function changeover function (Function setting No. 22)

The needle up/down switch function can be changed over between the needle up/down compensation and

one stitch compensation.

0 : Needle up / down compensating stitching

1 : One stitch compensating stitching

⑤ Setting of the suction time of the back-tack solenoid (Function setting No. 29)

This function can change the suction time of the back-tack solenoid. It is effective to decrease the value

when the heat is high.

(Caution) When the value is excessively decreased, failure of motion or defective pitch will follow.

Be careful when changing the value.

Setting range : 50 to 500 ms <10 / ms>

⑥ Function of reverse feed stitching on the way (Function setting Nos. 30 to 33)

Functions of the limit of number of stitches and thread trimming command can be added to the touch back

switch on the sewing machine head.

Function setting No. 30 Function of reverse feed stitching on the way is selected.

0 : OFF Normal back-tack function

1 : ON Function of reverse feed stitching on the way

Function setting No. 31 Number of stitches performing reverse feed stitching is set.

Setting range : 0 to 19 stitches

Function setting No. 32 Effective condition of reverse feed stitching on the way

0 : OFF Inoperative when the sewing machine stops. (Reverse feed stitching on the way

functions only when the sewing machine is running.)

1 : ON Operative when the sewing machine stops. (Reverse feed stitching on the way

functions both when the sewing machine is running and stops.)

(Caution) Either condition is operative when the sewing machine is running.

Function setting No. 33 Thread trimming is performed when reverse feed stitching on the way is com-

pleted.

0 : OFF Without thread trimming

1 : ON Thread trimming is executed.

Application

❶

❷

❸

❹

❺

Function setting

No.30 No.32 No.33

0 0 or 1 0 or 1 It works as normal touch-back switch.

When operating touch-back switch at the time of depressing front part of the pedal,

1 0 0

1 1 0

1 0 1

1 1 1

reverse feed stitching as many as the number of stitches specied by the function

setting No. 31 can be performed.

When operating touch-back switch at the time of either stop of the sewing machine

or depressing front part of the pedal, reverse feed stitching as many as the number

of stitches specied by the function setting No. 31 can be performed.

When operating touch-back switch at the time of depressing front part of the pedal,

automatic thread trimming is performed after reverse feed stitching as many as the

number of stitches specied by the function setting No. 31 has been performed.

When operating touch-back switch at the time of either stop of the sewing machine

or depressing front part of the pedal, automatic thread trimming is performed after

reverse feed stitching as many as the number of stitches specied by the function

setting No. 31 has been performed.

Output function

– 39 –

Actions under each setting state

❶ Used as the normal reverse feed stitching touch-back switch. ❷ Used for reinforcing seam (press sewing) of the pleats. (It works only when the sewing machine is

running.)

❸ Used for reinforcing seam (press sewing) of the pleats. (It works either when the sewing machine stops

or when the sewing machine is running.)

❹ Used as starting switch for reverse feed stitching at the sewing end. (Used as the substitute for thread

trimming by depressing back part of the pedal. It works only when the sewing machine is running. It is

especially effective when the sewing machine is used as the standing-work machine.)

❺ Used as starting switch for reverse feed stitching at the sewing end. (Used as the substitute for thread

trimming by depressing back part of the pedal. It works either when the sewing machine stops or when

the sewing machine is running. It is especially effective when the sewing machine is used as the stand-

ing-work machine.)

⑦ Sewing speed of one-shot stitching (Function setting No. 38)

This function can set, by the pedal operation of one time, the sewing speed of one-shot stitching when

the sewing machine continues stitching until completing the number of stitches specied or detecting the

material end.

(Caution) The max. sewing speed of one-shot stitching is limited by the model of the sewing machine

Setting range : 150 to MAX. sti/min. <50 / sti/min>

head.

⑧ Holding time of lifting presser foot (Function setting No. 47)

This function automatically lowers the presser foot when the time set with the setting No. 47 has passed

after lifting the presser foot. When the pneumatic type presser foot lifter is selected, the holding time control of lifting presser foot is

limitless regardless of the set value.

Setting range : 10 to 600 sec <10 / sec>

– 40 –

⑨ Compensation of timing of the solenoid for reverse feed stitching (Function setting No. 51 to 53)

When the normal and reverse feed stitches are not uniform under the automatic reverse feed stitching action, this function can change the ON / OFF timing of the solenoid for back tack and compensate the

timing. ❶ Compensation of on-timing of solenoid for reverse feed stitching at the start of sewing (Function setting

No. 51)

On-timing of solenoid for reverse feed stitching at the start of sewing can be compensated by the unit

of angle.

Adjusting range : – 36 to 36 <1 / 10˚>

Set value Compensation angle Number of stitches of compensation

– 36 – 360° – 1

– 18 – 180° – 0.5

0 0° 0

18 180° 0.5

– 360˚ – 180˚

0˚ 180˚ 360˚

* When the point

before 1 stitch is

regarded as 0˚,

compensation is

possible by 360˚ (1

stitch) in front and in the rear.

36 360° 1

❷ Compensation of off-timing of solenoid for reverse feed stitching at the start of sewing (Function set-

ting No. 52)

Off-timing of solenoid for reverse feed stitching at the start of sewing can be compensated by the unit

of angle.

Set value Compensation angle Number of stitches of compensation

– 36 – 360° – 1

– 18 – 180° – 0.5

0 0° 0

18 180° 0.5

36 360° 1

Adjusting range : – 36 to 36 <1 / 10˚>

360˚

180˚

0˚ – 180˚

– 360˚

❸ Compensation of off-timing of solenoid for reverse feed stitching at the end of sewing (Function setting

No. 53)

Off-timing of solenoid for reverse feed stitching at the start of sewing can be compensated by the unit

of angle.

Set value Compensation angle Number of stitches of compensation

– 36 – 360° – 1

– 18 – 180° – 0.5

0 0° 0

18 180° 0.5

36 360° 1

Adjusting range : – 36 to 36 <1 / 10˚>

360˚ 180˚

0˚

– 180˚ – 360˚

– 41 –

⑩ Foot lift function after thread trimming (Function setting No. 55)

This function can automatically lift the presser foot after thread trimming. This function is effective only

when it is used in combination with the AK device.

0 : OFF Function of automatically lifting the presser foot is not provided.

(Presser foot does not automatically go up after thread trimming.)

1 : ON Function of automatically lifting the presser foot is provided.

(Presser foot automatically goes up after thread trimming.)

⑪ Reverse revolution to lift the needle after thread trimming (Function setting No. 56)

This function is used to make the sewing machine rotate in the reverse direction after thread trimming to

lift the needle bar almost to highest position.

Use this function when the needle appears under the presser foot and it is likely to make scratches on the

sewing products of heavy-weight material or the like.

0 : OFF Function of making the sewing machine rotate in the reverse direction to lift the

needle after thread trimming is not provided.

1 : ON Function of making the sewing machine rotate in the reverse direction to lift the

needle after thread trimming is provided.

(Caution) The needle bar is raised, by rotating the machine in the reverse direction, almost to the

highest dead point. This may result in slip-off of the needle thread. It is therefore necessary

to adjust the length of thread remaining after thread trimming properly.

⑫ Function of holding predetermined upper / lower position of the needle bar (Function setting No.

58)

When the needle bar is in the upper position or in the lower position, this function holds the needle bar by

applying a brake slightly.

0 : OFF Not provided with the function of holding predetermined upper/lower position of

the needle bar

1 : ON Provided with the function of holding predetermined upper/lower position of the

needle bar (Holding force is weak.)

2 : ON Provided with the function of holding predetermined upper/lower position of the

needle bar (Holding force is medium.)

3 : ON Provided with the function of holding predetermined upper/lower position of the

needle bar (Holding force is strong.)

⑬ Change-over function of AUTO / Pedal for sewing speed of the reverse feed stitching at the start of

sewing (Function setting No. 59)

This function selects whether the reverse feed stitching at the start of sewing is performed without a break

at the speed set by the function setting No. 8 or the stitching is performed at the speed by the pedal oper-

ation.

0 : Manual The speed is indicated by the pedal operation.

1 : Auto Automatic stitching at the specied speed

(Caution) 1. The max. sewing speed of the reverse feed stitching at the start of sewing is limited to the

speed set by the function setting No. 8 regardless of the pedal.

2. When “0” is selected, stitches of reverse feed stitching may not match those of normal

feed stitching.

– 42 –

⑭ Function of stop immediately after the reverse feed stitching at the start of sewing (Function set-

ting No. 60)

This function temporarily stops the sewing machine even when keeping depressing the front part of the

pedal at the time of completion of process of reverse feed stitching at the start of sewing.

It is used when sewing a short length by reverse feed stitching at the start of sewing.

0 : Not provided with the function of temporary stop of the sewing machine immediately

after the reverse feed stitching at the start of sewing

1 : Provided with the function of temporary stop of the sewing machine immediately after

the reverse feed stitching at the start of sewing

Stop the sewing machine

temporarily to change

direction of sewing products.

⑮ Function of soft-down of presser foot (with AK device only) (Function setting No. 70 and 49)

This function can softly lower the presser foot.

This function can be used when it is necessary to decrease contact noise, cloth defect, or slippage of cloth

at the time of lowering the presser foot.

Note : Change the time of function setting No. 49 together at the time of selecting the function of soft-

down since the sufcient effect cannot be obtained unless the time of function setting No. 49

is set longer when lowering the presser foot by depressing the pedal.

Setting range : 0 to 500 ms <10 ms/Step>

0 : Function of soft-down of presser foot is not operative. (Presser foot is rapidly lowered.)

1 : Selection of function of soft-down of presser foot

⑯

Function of reducing speed of reverse feed stitching at the start of sewing (Function setting No. 92)

Function to reduce speed at the time of completion of reverse feed stitching at the start of sewing :

Normal use depending on the pedal condition (Speed is accelerated to the highest without a break.) This

function is used when temporary stop is used properly. (Cuff and cuff attaching)

0 : Speed is not reduced.

1 : Speed is reduced.

Sew without stopping

Temporary stop

without a break.

⑰ Retry function (Function setting No. 73)

When the retry function is used, if the sewing material is thick and not pierced with needle, this function

makes the needle pierce in the material with ease.

0 : Re-try function is not provided.

1 to 10 : Re-try function is provided. (Needle-bar returning force before re-trying: 1 (small) -

10 (large))

⑱ Presser foot lifting solenoid suction time setting (Function setting No. 84)

Suction time of presser foot lifting solenoid can be changed. When heating is great, it is effective to lessen

the value.

(Caution) When the value is excessively small, malfunction will be caused. So, be careful when chang-

ing the value.

Setting range : 50 to 500ms <10/ms>

– 43 –

⑲ Function of pedal curve selection (Function setting No. 87)

This function can perform the selection of the curve of sewing speed of the sewing machine against the

depressing amount of the pedal.

Change to this function when you feel that inching operation is hard or that pedal response is slow.

0 : Sewing speed in terms of the depressing amount of the pedal increases linearly.

1 : Reaction to intermediate speed in terms of the depressing amount of the pedal is de-

layed.

2 : Reaction to intermediate speed in terms of the depressing amount of the pedal is ad-

vanced.

Sewing speed (sti/min)

Pedal stroke (mm)

⑳ Initial motion UP stop position move function (Function setting No. 90)

Effective/ineffective of automatic return to UP stop position immediately after turning ON the power can be

set.

0 : Ineffective

1 : Effective

󰼼 Function added to the needle up / down compensating switch (Function setting No. 93)

One stitch operation can be performed only when the needle up / down compensating switch is pressed

at the time of upper stop immediately after turning ON the power switch or upper stop immediately after

thread trimming.

0 : Normal (Only needle up / down compensating stitching operation)

1 : One stitch compensating stitching operation (upper stop / upper stop) is performed

only when aforementioned changeover is made.

󰽇 Setting of max. sewing speed (Function setting No. 96)

This function can set the max. sewing speed you desire to use.

Upper limit of the set value varies in accordance with the sewing machine head to be connected.

Setting range : 150 to MAX. sti/min <50 / sti/min>

󰽈 Main shaft reference angle compensation (Function setting No. 120)

Main shaft reference angle is compensated

Setting range : – 50 to 50˚ <1 / ˚>

01 2

󰽉 UP position starting angle compensation (Function setting No. 121)

Angle to detect UP position starting is compensated.

Setting range : – 15 to 15˚ <1 / ˚>

11 2

󰽊 DOWN position starting angle compensation (Function setting No. 122)

Angle to detect DOWN position starting is compensated.

Setting range : – 15 to 15˚ <1 / ˚>

21 2

– 44 –

11. Automatic compensation of neutral point of the pedal sensor

Whenever the pedal sensor, spring, etc. are replaced, be sure to perform following operation :

If you place your foot or any object on the pedal, the pedal will not operate properly. Operate

the pedal with nothing placed on it.

1) Pressing switch 󱢵, turn ON the power

switch.

The panel display is as illustrated in the gure.

The value indicated on the right side of "PA.",

󱢵

at this time, is the compensation value. (In this

gure, the correction value is "1".)

2) The neutral position of the pedal is stored in

memory. Turn the power OFF to nish the proce-

dure.

In the case " " is displayed:

The pedal sensor is not properly connected. Turn the power OFF and check the connection of

the pedal sensor.

In the case " " is displayed:

It is necessary to adjust the installation of the pedal. Carry out the adjustment of the installa-

tion of the pedal according to the below-stated "How to adjust the pedal".

How to adjust the pedal

󱢹

a) Check the digit which ashes on and off to determine the direction of pedal dislocation.

In the case the pedal sensor neutral position is displaced toward the rear part of the pedal.

In the case the pedal sensor neutral position is displaced toward the front part of the pedal.

Flashes on and off Flashes on and off

b) Adjust the installation of the pedal so that the indication " " is displayed. (Refer to the Engineer's

Manual for how to adjust the pedal.)

Correct the pedal in the direction to correct the pedal dislocation. When the dislocation is reduced to be

within the permissible range, " " is displayed.

c) Press switch 󱢹. The indication is changed to the state described in 1).

d) Now, the pedal adjustment is completed. Turn the power OFF.

– 45 –

12. Selection of the pedal specications

When the pedal sensor has been replaced, change

the set value of function setting No. 50 according to

the newly connected pedal specications.

0 : KFL

1 : PFL

Pedal sensor with two springs located

at the back part of the pedal type is

PFL, and that with one spring type is

KFL. Set the pedal sensor to PFL when

lifting the presser foot by depressing

the back part of the pedal.

13. Setting of the auto lifter function

When the optional automatic presser lifter (AK85B device asm., part number : 40140416) is purchased

and retrotted, the auto lifter function should be enabled.

Display section A

1) Turn ON the power switch with switch 󱢹

held pressed.

2) "FL.on" is displayed on indicator A with a blip to

make the auto lifter function effective.

3) Turn OFF the power switch, and turn ON the

power switch again to return to the normal mode.

4) Repeat the operation 1) to 3), and display is

turned to "FL.oF". Then, the function of auto-lifter

does not work.

󱢹

: Automatic presser lifter is provided. (AK is provided.)

: Automatic presser lifter is not provided.

1. To perform re-turning ON of the power, be sure to perform after the time of one second or

more has passed.

(If ON / OFF operation of the power is performed quickly, setting may be not changed over

well.)

2. Auto-lifter is not actuated unless this function is properly selected.

3. When “Automatic presser lifter is provided.” is selected without installing the auto-lifter

device, starting is momentarily delayed at the start of sewing. In addition, be sure to select

“Automatic presser lifter is not provided.” when the auto-lifter is not installed since the

touch-back switch may not work.

– 46 –

14. Selecting procedure of the key-lock function

Setting of the number of stitches for a pattern can be prohibited by enabling the key lock function.

Display section A

1) Turn ON the power switch with switch ❻

and switch ❽ held pressed.

2) "KL.on" is displayed on indicator A with a blip to

make the key-lock function effective.

❻

3) The panel returns to the normal operation after

displaying "KL.on" on the indicators.

❽

4) While the key lock function is effective, "KL.on"

is displayed on the indicators when turning the

power ON.

5) When you carry out steps 1) to 3) in repetition, "KL.oF" is displayed when turning the power ON and the

key lock function is rendered ineffective.

• "KL.on" display when turning the power ON

Display appears: The key lock function is effective.

Display does not appear: The key lock function is ineffective.

In the case the key lock function is effective, the operation of the panel will be as shown in the table below.

Switch operation of which is to be dis-

abled.

Switch operation of which is not to be

disabled.

• Setting of the reverse feed stitching (❶, ❷, ❸ and ❹)

• Change of the sewing pattern (❺, ❻, ❼ and ❽)

• Change of the number of stitches (❾)

• Change of the sewing operation (󱢴, 󱢵, 󱢶 and 󱢷)

• Compensating stitching in half-stitch steps (󱢳)

• Production support function (❼)

15. Initialization of the setting data

All contents of function setting can be returned to the standard set values.

󱢴

󱢹

4) Turn OFF the power switch and turn ON the power switch after closing the front cover. The machine re-

turns to the normal motion.

1. When you carry out the aforementioned operation, the neutral position correction value for the pedal sensor is also initialized. It is therefore necessary to carry out automatic correction of the pedal sensor neutral position before using the sewing machine. (Refer "III-11.

Automatic compensation of neutral point of the pedal sensor" p.45.)

2. When you carry out the aforementioned operation, the machine-head adjustment values and the function settings of the optional devices are also initialized. It is therefore necessary to carry out adjustment of the machine head before using the sewing machine. (Refer

"IV-1. Adjusting the machine head" p.49.)

3. Even when this operation is performed, the sewing data set by the operation panel cannot be initialized.

1) Referring to the explanation of "III-6. Setting of

functions" p.26, select function setting "n.95".

Then, press switch 󱢹.

2) Press and hold switch 󱢴.

3) The buzzer sounds after approximately one sec-

ond, and the setting data returns to the standard

setting value.

Do not turn OFF the power on the way

of initializing operation. Program of the main unit may be broken.

– 47 –

16. LED hand light

WARNING :

In order to protect against personal injury due to unexpected start of the sewing machine, never bring hands near the needle entry area or place foot on the pedal during the adjustment of intensity of the LED.

* This LED is intended to improve operability of the sewing machine and is not intended for

maintenance.

The sewing machine is provided as standard with an

LED light which illuminates the needle entry area.

1) Turn the power ON while pressing switch

󱢸 to enter the function setting mode.

2) Intensity adjustment and turn-off of the light is

carried out by pressing switch ❶. Every time the

switch is pressed, the light is adjusted in intensity

in ve steps and is turned off in turn.

[Change of intensity]

󱢳

󱢸

⇒

Bright⇒...... Dim⇒Off⇒Bright

......

⇒

In this way, every time the switch ❶ is pressed,

the hand lamp status is changed in repetition.

3) Press switch 󱢳 to complete the proce-

dure.

❶

17. Height adjustable one-touch type reverse stitching switch

Height of touch-back switch ❶ is adjustable. For the process during which touch-back switch ❶

is not used, the material on the sewing machine can

be handled with ease by increasing the height of the

switch.

❶

❷

❸

[How to adjust the height]

The switch height can be adjusted along the bracket by loosening screw ❷.

To change the settings of wiper ❸ from the factory-adjusted settings at the time of shipment

for the purpose of adjustment, it is necessary to adjust the height of touch-back switch ❶ so that it does not interfere with wiper ❸.

– 48 –

IV. MAINTENANCE

1. Adjusting the machine head

When the slip between the blue marker dot on the handwheel and the concave of the cover is

excessive after thread trimming, adjust the angle of the machine head by the operation below.

1) Turn the power ON while keeping switch

󱢶 and switch 󱢷 held pressed.

"ZAJ" appears on the display section.

󱢶

󱢷

Display section A

❷

2) Turn the pulley of the machine head by hand until

the main-shaft reference signal is detected. At

this time, the degree of an angle from the main-

shaft reference signal is displayed on the display

section A. (The value is the reference value.)

3) In this state, align the blue dot ❶ of the handwheel with the concave ❷ of the cover as shown

in the gure.

❶

Display section A

󱢹

4) Press switch 󱢹 to nish the adjustment

work. At this time, the value indicated on display

section A is changed. (The value is the reference

value.)

5) Turn the power OFF.

– 49 –

2. Error codes

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

Phenomenon Cause Corrective measure

When tilting the sewing machine, the buzzer beeps and the sewing machine cannot be operated.

Solenoids for thread trimming, reverse feed, wiper, etc. fail to work. Hand lamp does not light up.

Even when depressing the pedal immediately after turning ON the power, the sewing machine does not run. When depressing the pedal after depressing the back part of pedal once, the sewing machine runs.

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.

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

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

When tilting the sewing machine without turning OFF the power switch, Action given on the left side is taken for safety sake.

When the fuse for solenoid power protection has blown out

Neutral position of the pedal has varied. (Neutral position may be shifted when changing spring pressure of the pedal or the like.)

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

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

Cord of auto-lifter device is not connected to connector (CN37).

device.

Auto-lifter device is not attached. However, auto-lifter function is ON.

Connector (CN30) of motor signal cord is disconnected.

Tilt the sewing machine after turning OFF the power.

Check the fuse for solenoid power protection.

Execute the automatic neutral correction function of the pedal sensor.

vided.” by auto-lifter function selection.

the presser foot by depressing the back part of the pedal.

Connect the cord properly.

Operate the switch after the presser foot lowered.

Select “Automatic presser lifter is not provided.” when auto-lifter device is not attached.

Connect the cord properly.

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.

Display section A

󱢴

[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 selection 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

❾

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.)

– 50 –

Error code list

Description of error

No.

E000 Execution of data

E007 Overload of motor • When the machine head is locked.

E009 Solenoid energizing

E071 Disconnection of mo-

E072 Overload of motor

E079 Continuous opera-

E302 Fall detection switch

E303 Semicircular plate

E499

E704

E730 Encoder failure • When the motor signal is not properly

E731 Motor hole sensor

E733 Inverse rotation of

E799 Thread trimming

E808 Solenoid short circuit • Solenoid power does not become normal

E809 Holding motion

E810 Solenoid current

detected

initialization (This is

not the error.)

time error

tor output connector

at the time of thread

trimming motion

tion with the motor

applied with a higher

load

failure

(When the safety

switch works)

sensor error

Data fault • The stored data have broken.

failure

motor

operation time-out

failure

abnormality

Cause of occurrence expected Items to be checked

• When the machine head is changed.

• When the initialization operation is exe-

cuted.

• When sewing extra-heavy material

beyond the guarantee of the machine

head.

• When the motor does not run.

• Motor or driver is broken.

• The period of time during which the sole-

noid is energized exceeds the assumed

one.

• Disconnection of motor connector. • Check the motor output connector for loose

• Same as E007. • Same as E007.

• The machine has been operated with the

motor applied with a load which is higher

than the normal load.

• When fall detection switch is input in the

state that the power is turned ON.

• Semicircular plate sensor signal cannot

be detected.

inputted.

• This error occurs when the motor is run-

ning at 500 sti/min or more in the oppo-

site direction of that of rotation indication

during motor is running.

• The thread trimmer control operation is

not completed within the predetermined

time period.

voltage.

• Solenoid is not changed over to holding

motion.

• Solenoid rare short-circuit. • Solenoid resistance.

• Check whether the thread has been entan-

gled in the motor pulley.

• Check the motor output connector (4P) for

loose connection and disconnection.

• Check whether there is any holdup when

turning the motor by hand.

connection and disconnection.

• Check whether the thread has been entan-

gled in the motor pulley.

• Check whether there is any holdup when

turning the motor by hand.

• Check whether the machine head is tilted

without turning OFF the power switch

(sewing machine operation is prohibited for

safety sake).

• Check whether the motor encoder connec-

tor is disconnected.

• Check the motor signal connector (CN30)

for loose connection and disconnection.

• Check whether the motor signal cord has

broken since the cord is caught in the ma-

chine head.

• Check whether the inserting direction of the

motor encoder connector is wrong.

• Connection of the encoder of main shaft

motor is wrong.

• Connection for the electric power of main

shaft motor is wrong.

• Check whether the machine head cord is

caught in the cover or the like.

• Check whether the solenoid is abnormally

heated. (CTL circuit board asm. circuit is

broken.)

– 51 –

Description of error

No.

E811 Supply voltage fault • When voltage higher than guaranteed

E922 Main shaft uncontrol-

E924 Motor driver failure • Motor driver has broken.

E930 Faulty encoder • In the case a motor signal cannot be

E931 Motor hole sensor

E942 Faulty EEPROM • Data cannot be written on the EEPROM.

detected

lable

failure

Cause of occurrence expected Items to be checked

one is inputted.

• The machine has been connected to the

power source supply voltage of which is

200 V or less.

• The machine has been connected to the

power source supply voltage of which is

270 V or more.

• In the case the main shaft cannot be

controlled.

input correctly.

• Check whether the supply voltage which

falls outside the "rated voltage ± 10 %" is

applied.

• The inner circuit may have broken.

• Check the motor signal connector (CN30)

for looseness and slip-off.

• Check whether the motor signal cord is

caught in the machine head or has a break.

– 52 –

JUKI DDL-900B Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

I. SPECIFICATIONS

II. SET-UP

1. Installation

2. Installing the pedal sensor

3. Installing the power switch (for CE)

4. Connecting the connector

5. How to install the power plug

6. Attaching the connecting rod

7. Winding the bobbin thread

8. Adjusting the height of the knee lifter

9. Installing the thread stand

10. Lubrication

11. Adjusting the amount of oil (oil splashes)

12. Attaching the needle

13. Setting the bobbin into the bobbin case

14. Adjusting the stitch length

15. Presser foot pressure

16. Hand lifter

17. Adjusting the height of the presser bar

18. Threading the machine head

19. Thread tension

20. Thread take-up spring

21. Adjusting the thread take-up stroke

22. Needle-to-hook relationship

23. Height of the feed dog

24. Tilt of the feed dog

25. Adjusting the feed timing

26. Counter knife

27. Pedal pressure and pedal stroke

28. Adjustment of the pedal

29. Marker dots on the handwheel

III. FOR THE OPERATOR

1. Operating procedure of the sewing machine

2. Setting procedure of the machine head

3. Operation panel built in the machine head

4. Operating procedure of the sewing pattern

5. One-touch setting

6. Setting of functions

7. Production support function

8. Setting of thread clamp (NB type only)

9. Function setting list

10. Detailed explanation of selection of functions

11. Automatic compensation of neutral point of the pedal sensor

13. Setting of the auto lifter function

14. Selecting procedure of the key-lock function

15. Initialization of the setting data

16. LED hand light

17. Height adjustable one-touch type reverse stitching switch

IV. MAINTENANCE

1. Adjusting the machine head

2. Error codes