VERITAS Rubina Manual page 118

Trouble Shooting Guide
Problem Cause
Upper 1. The machine is not threaded
thread correctly.
breaks
2. The thread tension is too tight.
3. The thread is too thick for the
needle.
4. The needle is not inserted cor-
rectly.
5. The thread is wound around the
spool holder pin.
6. The needle is damaged.
Lower 1. The bobbin case is not inserted
thread correctly.
breaks
2. The bobbin case is threaded wrong. 2. Check both bobbin and bobbin case.
Skipped 1. The needle is not inserted cor-
stitches rectly.
2. The needle is damaged.
3. The wrong size needle has been
used.
4. The foot is not attached correctly. 4. Check and attach correctly.
5. The machine is not threaded
correctly.
Needle 1. The needle is damaged.
breaks
2. The needle is not correctly
inserted.
3. Wrong needle size for the fabric.
4. The wrong foot is attached.
5. The needle clamp screw is loose. 5. Use the screwdriver to firmly tighten
6. The presser foot that is used is
not appropriate for the type of
stitch that you wish to sew.
7. The upper thread tension is too
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tight.
Correction
1. Rethread the machine.
2. Reduce the thread tension (lower
number).
3. Select a larger needle.
4. Remove and reinsert the needle
(flat side towards the back).
5. Remove the spool holder and unwind
the thread from the spool holder pin.
6. Replace the needle.
1. Remove and reinsert the bobbin case
and pull on the thread. The thread
should pull easily.
1. Remove and reinsert needle (flat side
towards the back).
2. Insert a new needle.
3. Choose a needle to suit the thread.
5. Rethread the machine.
1. Insert a new needle.
2. Insert the needle correctly (flat
side towards the back).
3. Choose a needle to suit the thread
and fabric.
4. Select the correct foot.
the screw.
6. Attach the presser foot that is appro-
priate for the type of stitch that you
wish to sew.
7. Loosen the upper thread tension.
Problem Cause
Page
Loose 1. The machine is not correctly
37
stitches threaded.
2. The bobbin case is not correctly
49
threaded.
3. Needle / fabric / thread combina-
55
tion is wrong.
4. Thread tension is wrong.
57
Seam 1. The needle is too thick for the
gather fabric.
37
or pucker
2. The stitch length is adjusted
wrong.
57
3. The thread tension is too tight.
35
Seam 1. The needle thread tension is too
puckering tight.
35
2. The needle thread is not thread-
ed correctly.
57
3. The needle is too heavy for the
fabric being sewn.
57
4. Stitch length is too long for the
55
fabric.
The 1. Thread is caught in the hook.
29
machine
2. The feed dogs are packed with
jams
37
lint.
The ma- 1. Lint or oil have collected on the
57
chine hook or needle bar.
is noisy
57
2. The needle is damaged.
3. Slight humming sound coming
55
from internal motor.
4. Thread is caught in the hook.
51
5. The feed dogs are packed with
57
lint.
51
Before calling for service, check the following items. If the problem still persists, contact the place
of purchase or your nearest authorized dealer.
49
Correction
1. Check the threading.
2. Thread the bobbin case as illustrated.
3. The needle size must suit the fabric
and thread.
4. Correct the thread tension.
1. Select a finer needle.
2. Readjust the stitch length.
3. Loosen the thread tension.
1. Loosen the thread tension.
2. Rethread the machine.
3. Choose a needle to suit the thread
and fabric.
4. Shorten stitch length
Remove the upper thread and bobbin
case. Turn the handwheel backwards
and forwards by hand and remove the
thread remnants.
1. Clean the hook and feed dog as
described.
2. Replace the needle.
3. Normal.
Remove the upper thread and bobbin
case. Turn the handwheel backwards
and forwards by hand and remove the
thread remnants.
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