EverSewn CH04AX Instrucciones de funcionamiento
REPAIR MANUAL
CH04AX
Contents
1. Gauge & Tool List........................................................................................................................ 2
2. Remove machine covers....................................................................................................... 2
2-2. Remove face plate................................................................................................................................ 2
2-3. Remove Front cover ............................................................................................................................ 2
2-4. Remove Back cover............................................................................................................................. 2
2-5. Remove bed cover ............................................................................................................................... 2
3. Mechanical components adjustment........................................................................... 2
3-1. Play of the Arm shaft ........................................................................................................................... 2
3-2. Thread take up lever adjustment......................................................................................................... 2
3-3. Adjusting the needle drop position .................................................................................................... 2
3-4. Adjust height of the presser foot........................................................................................................ 2
3-5. Adjust the zigzag movement of the needle ........................................................................................ 2
3-6. Adjust needle drop positions.............................................................................................................. 2
3-7. Adjust the automatic needle threader ................................................................................................ 2
3-8. Adjust the needle bar height............................................................................................................... 2
3-9. Adjust the hook timing ........................................................................................................................ 2
3-10. Adjust the distance between needle and hook................................................................................ 2
3-12. Adjust the play for the rotary hook plates........................................................................................ 2
3-13. Adjust the height of the feed dog...................................................................................................... 2
3-14. Adjust the feed dog position............................................................................................................. 2
3-15. Adjust the upper thread tension ....................................................................................................... 2
3-16. Adjust the bobbin case tension ........................................................................................................ 2
3-17. Adjust motor belt ............................................................................................................................... 2
3-18. Super Adjust stitch balance.............................................................................................................. 2
3-19. BH BH adjustment.............................................................................................................................. 2
3-20. Bobbin winder adjustment ................................................................................................................ 2
4. Electronic Components.......................................................................................................... 2
5. Printed Circuit Board................................................................................................................ 2
5-2. HF transformer board .......................................................................................................................... 2
6-1. Trouble shooting –Main power .......................................................................................................... 2
6. Trouble shooting –Electronic parts............................................................................. 2
6-2. DC Trouble shooting - Motor............................................................................................................... 2
6-3. Trouble shooting –Stepping motor(stitch length)............................................................................. 2
6-4. Trouble shooting –Stepping motor(upper tension).......................................................................... 2
6-5. Trouble shooting –Stepping motor(thread trimmer)......................................................................... 2
6-6. Trouble shooting –Stepping motor(zigzag)....................................................................................... 2
6-7. Trouble shooting –Wi-Fi module (CH04AX) ....................................................................................... 2
6-8. Operation Panel Malfunction............................................................................................................... 2
6-9. Start/Stop button & Reverse button malfunction............................................................................... 2
6-10. Bobbin winder cannot stop............................................................................................................... 2
6-11. Buttonhole Sewing Failure................................................................................................................ 2
6-12. Foot Controller Failure....................................................................................................................... 2
6-13. LED Light Failure ............................................................................................................................... 2
6-14. Organize the cables ........................................................................................................................... 2
7. Embroidery Unit............................................................................................................................ 2
7-1. Main parts of the embroidery unit....................................................................................................... 2
7-2. Dissemble the embroidery unit........................................................................................................... 2
7-3. Mechanical adjustment for the embroidery unit. ............................................................................... 2
7-4. PCB Layout for the embroidery unit................................................................................................... 2
8. Quick Repair Reference.......................................................................................................... 2
1
1. Gauge & Tool List
Gauge Appearance
No
ZH SAP#
Item Description
Spec.
Purpose
1
031CAA0044
Needle bar height
gauge
29.05mm
For needle bar
height
adjustment (see
page 16)
2
031CAA0013
Hook timing gauge
3.5mm
For adjusting
the hook timing
(see page 18)
3
031CAA0014
Hook timing gauge
holder
For adjusting
the hook timing
(see page 18)
4
031CAA0010
Feed dog gauge
0.9~1.05mm
For adjusting
the height of
feed dog (see
page 25)
5
031V8D0301
Presser bar Gauge
6.0~6.5mm
For adjusting
the height of
presser foot
(see page 10)
6
031CAA0012
Zigzag movement
gauge
6.0~6.2mm
Checking the
zigzag
movement of
the needle (see
page10)
7
031CAA0042
Rotary hook plate
(1) gauge
0.3~0.5mm
Check the play
allowance for
the rotary hook
plate (1) (see
page 22)
8
031CAA0043
Rotary hook plate
(2) gauge
0.6~1.0mm
Check the play
allowance for
the rotary hook
plate (2) (see
page 23)
2
Tool Type
No
Head Type
Item Description
Specs
Remark
1
Hexagon
screwdriver
1.5mm
2
Hexagon
screwdriver
2.0mm
3
Hexagon
screwdriver
2.5mm
4
Hexagon
screwdriver
3.0mm
5
Hexagon
screwdriver
4.0mm
6
L-shape slotted
screwdriver (twin
heads)
3
2. Remove machine covers
2-1. Remove accessory box
2-1-1.
Grasp the accessory box then pull toward by the
arrow direction to remove it.
2-2. Remove face plate
2-2-1
Use Philips head screwdriver to remove the setscrews of the
face plate, free arm cover, free arm base cover and bed cover.
4
2-3. Remove Front cover
2-3-1
Use Philips screwdriver to remove the front cover
2-3-2
Remove the harness &WIFI module cable
5
2-4. Remove Back cover
2-4-1
Use Philips screwdriver to remove the back cover (Please
lower the presser foot lever first)
2-4-2
When removing the back cover, please pay attention to avoid
hitting the receptacle holder and break it.
2-5. Remove bed cover
2-5-1
Use Philips screwdriver to remove the bed cover
6
3. Mechanical components adjustment
①
②
③
④
⑤
⑥
⑦
⑧
3-1. Play of the Arm shaft
(※Please remove face plate, free arm cover, free arm base
cover, base cover, front cover in advance)
Use 2.5mm hexagon screwdriver to loosen 2 setscrews on arm
shaft collar (as shown in area ⑤).
7
3-1-2
Follow the arrow direction to pull the hand wheel
outward.
3-1-3
Pull arm shaft collar to left (as shown in area ⑤) and fit tightly
against the arm shaft bushing. Then tighten 2 setscrews on
the arm shaft collar
3-1-5
Follow 3-1-2 to pull the hand wheel outward and turn the
hand wheel to move the needle to three different positions
(highest, lowest, center). Then check if the play of the arm
shaft is sufficient.
3-1-4
Check if the arm shaft can rotate smoothly. If not, the arm
shaft collar may fit too tightly against the arm shaft bushing.
3-1-6
If the play of arm shaft is still too loose or too tight, follow the
above procedures (3-1-1～3-1-5) to re-adjust.
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