Reasons

Solutions

1. Cross-stitching sprays are in loose contact with copper poles.

Adjust the position of the spray as follows: firstly, rotate central screws anticlockwise to separate the cross-cutting sprays and the copper pole, then clockwise rotate the screw till the spray and the pole are closely connected

2. Embroidery thread is out of the track

Adjust the track

3. The thread is too tight or too loose.

Adjust the three wheels to make the cross-stitching pole touches the cooper pole when cross-stitching, otherwise leaves the pole

4. A fault in the disconnection –testing board

Refer to book of direction

Troubles

Solutions

1. Embroidery frame is too heavy

Reduce the weight

2. The dentiformed belt is too tight or too loose.

Adjust the tension of it

3. Fraction in the track is too strong, maybe with unknown objects

Clean and add lubricant oil to it

4. Connection between the transmission shaft and the belt becomes loose

Check the stopping screw and fixing bolt
and tighten them

5. The driving bearing breaks down

Replace the bearing

6. The fraction between the embroidery frame and the board is too strong

Check whether embroidery frame is out of shape, the screw of the frame is too loose or not, and the screw of the embroidery aid frame is too long

7. Embroidery frame is too loose or too tight

Check the bearing of embroidery frame

8. Connection between the pulse motor and the connecting cover is loose, so is the bolt

Fasten them

9. Embroidered material is too loose

Add slip sheets, and retighten them

10. Data is changed because of outside interruption

input designs again

11. Electric appliances reasons

Refer to book of direction

Reasons

Solutions

1. Wrong parking position

Adjust to the main shaft to 100 degree

2. No signals for needles’ positions (the signal light doesn’t work)

Check part 5

3. Color-changing cam changes positions

Bridge the gap between cam axils

4. Cross-stitching shafts change positions

Check part 6 to see whether a fan-shaped gear changes positions, gets loose, or shows signs of abrasion,then adjust the height of the cross-stitching shaft

5. The machinery is jammed

Check the fitting part of part 5, 6 and 7

6. Needle-shaft box changes positions

Check whether the needle tip is right to the hole

7. Driving slide changes positions

Test the fitting part of the slide and the needle

8. Electric appliances reasons

Refer to book of direction

Reasons

Solutions

1. Park in a wrong position

Turn the main craft to 100
degree

2. Embroidery frame shuts down offside

Move the frame inversely

3. Machine is jammed

Find out the jammed point and fix it

4. Motor of the main gear is switched off

5. Related fuse blows

Reasons

Solutions

1. The needle doesn’t take good aim at the hole on the needle board

Turn the main shaft to 140 degree and adjust the position of the needle

2. Color-changing part changes positions

Adjust the part

3. Needle goes blunt

Change the needle

4. Lower shaft changes positions, and needle touches shuttle shell

Check whether the shuttle looses, and make sure the shell is in place.

5. Thread scissors aren’t in place

Check scissoring part and put scissors back in place

6. Switch on the motor while pulling thread

Change the habit

Reasons

Solutions

1. Needle shafts’ locating part is too low

Loosen screw and turn main shaft to 0 degree, then adjust it

2. Driving slide doesn’t spring back

Check whether the machinery is jammed or the spring doesn’t work

Reasons

Solutions

1. Needle shafts’ locating part is too high

Loosen screw and turn main shaft to 0 degree, then adjust it

Reasons

Solutions

1. Needle is poor in quality, bent or blunt

Change the needle

2. Size of needle misfits that of thread thickness

Change the needle or the thread

3. Tip of needle and tip of shuttle change positions

Check and adjust the 196 degree parameter

4. Height of needle shaft changes

Check and adjust the 172 degree parameter

5. Tension of upper thread misfits that of lower thread

Adjust their tension

6. Embroidered material isn’t firmly fixed

Adjust it

7. Skipping electromagnet fails to spring back

Adjust it

Reasons

Solutions

1. Skipping electromagnet doesn’t act

Check whether thread and plug work well

2. Skipping electromagnet acts but changes positions

Check whether it looses and then adjust it

3. Connecting bolt on needle shaft changes positions, and move right and left

Check whether the gap between shield and connecting bolt is too large

4. Driving slide changes positions, abrades or is jammed

Check the slide and the cover, to find the jammed spot and adjust its position or replace it

5. Electric appliances reasons

Refer to the book of direction

Reasons

Solutions

1. Needle problem

A. Bad quality of the needle

Replace the needle

B. Needle is not properly installed

Reinstall it

C. Needle is not straight, or not in the position

Reinstall and adjust

D. Something is on the needle point

Remove it

E. Fixing screw of the needle is not in the right position

Adjust it to 30 degree to the right

2. Thread problem

A. Bad quality of the thread

Replace the thread

B. Thread doesn’t match with the needle

Adjust the tension of thread

C. Tension of upper thread and lower thread is too strong

Replace

D. Too many branches of the upper thread

Replace it

E. Thread is off the track

Repair the track

3. Thread track is not smooth

A. Burr in the needle board hole

Polish or replace

B. Burr in the needle track hole

Polish or replace

C. Burr on the spinning wheel disk

Replace it

4. Spinning shuttle

A. Scratch on the shuttle

Polish or replace

B. Scratch on the shuttle shell

Polish or replace

>C. Shuttle and shell deform

Replace them

D. Scratch on the locating shaft

Polish or replace

E. Bad lubrication

Add lube

5. Parameter is changed

Adjust the parameter

6. Designs are too dense, or needle is not long enough

Repair the board

Reasons

Solutions

1. Tension of upper thread or that of lower thread is weak

Adjust it

2. Thread is not hard enough

Replace the thread

3. Tension of lower thread is unstable

Clean the shuttle shell

4. Shuttle doesn’t lubricate well

Add lube to it

5. Tension of thread misfits embroidery material

Adjust the tension

6. Shuttle shell goes out of shape

Replace it

Reasons

Solutions

1. Bad quality of thread

Replace it

2. Needle shaft is too high

Adjust its height at 196 degree

3. Thread track is not smooth

Check and polish the track

Reasons

Solutions

1. Thread-scissoring position changes

A. Moving knife and Thread-scissoring shaft get loose

Adjust and fasten

B. Thread-scissoring part changes position

Adjust

C. Electromagnet changes position, cam ring is too low

Adjust

D. Moving knife’s position of opening and shutting is low

Adjust

2. Not scissoring thread

A. Moving knife and unmoving knife cooperate poorly

Adjust the angle of the unmoving knife

B. Moving knife changes position of opening and shutting

Adjust the position of 293 degree +/- 2 degree

C. Knives go blunt

Replace them

D. Moving knife changes position

Adjust

E. Spring loop of bottom thread clip deforms

Replace it

3. Thread scissored is too short

A. Tension of lower thread changes

Adjust

B. Shuttle shell deforms

Replace

C. Bottom thread clip changes position

Adjust

D. Bottom thread clip deforms

Replace

E. Computer setup is wrong

Modify into long thread scissoring

4. Electric appliance reasons

Refer to book of direction

Reasons

Solutions

1. Upper thread is not cut, or too short

A. Thread-cutting knife changes position

Adjust the position of moving knife

B. Holding part changes position

Adjust the angle

2. Drawing thread is not at the right position

A. Upper drawing thread part was locked

Open the lock

B. Thread-drawing hook changes position, or the thread drawn is not to place

Adjust the hook

C. Thread-picking part is loose

Adjust and fasten

D. Thread-drawing electromagnet doesn’t work

Replace it