S-7000DD
8. TROUBLESHOOTING
37
Problem Possible cause Page
13 Broken needles
・ Is the material being pushed or pulled with excessive force during
sewing?
・ Is the needle properly installed?
If it is incorrect, install the needle correctly.
・ Is the needle bent, is the needle tip broken, or is the needle hole
blocked?
Replace the needle.
・ Is the needle and rotary hook timing correct?
Adjust the height of the needle bar.
Adjust the clearance between the needle and the tip of the
rotary hook.
・ Is the needle timing too advanced with respect to the feed dog?
Retard the needle timing.
・ It is extremely dangerous to leave any pieces of broken
needle sticking in the material. If the needle breaks, search
for all pieces until the whole of the needle is found again.
・ Furthermore, we recommend that through steps be taken to
account for such needles to comply with product liability
regulations.
31*
32*
31*
14 Machine does not operate
when power is turned on
and treadle is pressed.
・ Is the power supply connector disconnected from the control box?
Insert the connector securely.
7～11
15 Machine does not operate
at high speed.
・ Is the sewing speed setting or backtack stitch speed setting too
slow?
Set the maximum sewing speed to a higher speed.
16*
16 Nothing appears on the
operation panel display.
・ Is the power supply connector disconnected from the control box?
Insert the connector securely.
・ Is the operation panel connector at the control box disconnected?
Insert the connector securely.
7～11
7*
Caution
0469M
