Trouble Shooting Guide

SILVERCREST SNM 33 C1

Upper thread breaks

Rethread the machine.
Reduce the thread tension (lower number).
fadenspannung a

A. Upper thread tension

Basic upper thread tension setting: "AUTO" To increase the tension, turn the dial to the next higher number. To reduce the tension, turn the dial to the next lower number.
1. Normal thread tension
2. Upper thread tension too loose
3. Upper thread tension too tight

Note: The upper thread tension must be set at 2-3 when sewing the lightweight fabrics, like silk and jersey etc.

 
fadenspannung b

B. Lower thread tension

Note: The bobbin tension is adjusted correctly during manufacturing, therefore no changes are necessary.

To test the bobbin thread tension, the full bobbin is placed in the bobbin case. The bobbin case and gripper are then suspended by the end of the thread. If the tension is correct, the thread will unwind by about 1.97 to 3.94 inch. when gently swung and will then remain suspended. If the full bobbin case unwinds, the tension is too slack. If the tension is too tight, it hardly unwinds or does not unwind at all. To adjust, use the screwdriver.

Use a larger needle

tabelle

IMPORTANT: Match needle size to thread size and weight of fabric.

Please Note:

  • In general, fine threads and needles are used for sewing fine fabrics, and thicker threads are used for sewing heavy fabrics.
  • Always test thread and needle size on a small piece of fabric which will be used for actual sewing.
  • Use the same thread for needle and bobbin.
  • Use the stabilizer material for fine or stretchy fabrics, and select the correct presser foot.
  • The upper thread tension must be set at 2-3 when sewing the lightweight fabrics, like silk and jersey etc.
Remove and reinsert the needle (flat side towards the back).

Important: Turn power switch to off ("O")!

SNMD33A1 Einsetzen der Nadel

Change the needles regularly, especially at the first signs of problems when sewing.

Insert the needle as in the illustration.
A. Loosen the needle clamp screw and tighten again after inserting the new needle.
B. The flat side of the shaft should be towards the back.
C/D. Insert the needle up to the stop at the end of the shaft.

Only use fully-functional needles.
Problems can occur with the use of:
- Bent needles
- Blunt needles
- Damaged points

Remove the bobbin and unwind the thread.

Important: Set the main switch (20) to ("O"). Raise the presser foot bar by lifting the two-step presser foot lifter (18) and lift the thread lever (1) by turning the hand wheel (21) anti-clockwise. Follow the arrows and numbers on the sewing machine when threading.

SNMB1 Oberfaden einfaedeln 1

1. Place the spool (n) on the spool pin (15) and hold it in place with a spool pin cap (s).

- Small spool pin cap for thin threads
- Large spool pin cap for thick threads

 
SNMB1 Oberfaden einfaedeln 2

2. Guide the upper thread through the upper thread guide (16) and bobbin thread guide (2) from right to left, then move it forward into the right slot and guide it downwards.

3. Guide it to the left under the guide lug (A) and then upwards again.

 
SNMB1 Oberfaden einfaedeln 3

4. Guide the thread from right to left through the thread lever (1) and then downwards.

5. Guide the thread first behind the large, metal thread guide (B) and then through the eye of the needle. Always thread the needle from the front.

 
SNMB1 Oberfaden einfaedeln 4

Needle threader

You can use the needle threader (g) as a threading aid.
1. Insert the needle threader (g) through the eye of the needle from back to front.
2. Guide the upper thread through the wire loop of the needle threader.
3. Pull the needle threader (g) together with the thread back through the eye of the needle.

Replace the needle.

Important: Turn power switch to off ("O")!

SNMD33A1 Einsetzen der Nadel

Change the needles regularly, especially at the first signs of problems when sewing.

Insert the needle as in the illustration.
A. Loosen the needle clamp screw and tighten again after inserting the new needle.
B. The flat side of the shaft should be towards the back.
C/D. Insert the needle up to the stop at the end of the shaft.

Only use fully-functional needles.
Problems can occur with the use of:
- Bent needles
- Blunt needles
- Damaged points

Lower thread breaks

Remove and reinsert the bobbin case and pull on the thread. The thread should pull easily.

Important: Turn power switch to off ("O")!

spule einlegen a

When inserting or removing the bobbin, the needle must be fully raised.

1. Open the hinged cover.

2. Pull the bobbin case tab (A) and remove the bobbin case. Hold the bobbin case with one hand.

 
spule einlegen b

3. Insert the bobbin (3) so that the thread runs in a clockwise direction (arrow).

4. Pull the thread into the slit and under the tension spring.

 
spule einlegen c

5. Hold the bobbin case between the index finger and thumb on the bobbin case tab (A).

6. Insert it into the shuttle race.

Check both bobbin and bobbin case.

Important: Turn power switch to off ("O")!

spule einlegen a

When inserting or removing the bobbin, the needle must be fully raised.

1. Open the hinged cover.

2. Pull the bobbin case tab (A) and remove the bobbin case. Hold the bobbin case with one hand.

 
spule einlegen b

3. Insert the bobbin (3) so that the thread runs in a clockwise direction (arrow).

4. Pull the thread into the slit and under the tension spring.

 
spule einlegen c

5. Hold the bobbin case between the index finger and thumb on the bobbin case tab (A).

6. Insert it into the shuttle race.

Skipped stitches

Remove and reinsert needle (flat side towards the back).

Important: Turn power switch to off ("O")!

SNMD33A1 Einsetzen der Nadel

Change the needles regularly, especially at the first signs of problems when sewing.

Insert the needle as in the illustration.
A. Loosen the needle clamp screw and tighten again after inserting the new needle.
B. The flat side of the shaft should be towards the back.
C/D. Insert the needle up to the stop at the end of the shaft.

Only use fully-functional needles.
Problems can occur with the use of:
- Bent needles
- Blunt needles
- Damaged points

Replace the needle

Important: Turn power switch to off ("O")!

SNMD33A1 Einsetzen der Nadel

Change the needles regularly, especially at the first signs of problems when sewing.

Insert the needle as in the illustration.
A. Loosen the needle clamp screw and tighten again after inserting the new needle.
B. The flat side of the shaft should be towards the back.
C/D. Insert the needle up to the stop at the end of the shaft.

Only use fully-functional needles.
Problems can occur with the use of:
- Bent needles
- Blunt needles
- Damaged points

Choose a needle size to suit the thread and fabric

tabelle

IMPORTANT: Match needle size to thread size and weight of fabric.

Please Note:

  • In general, fine threads and needles are used for sewing fine fabrics, and thicker threads are used for sewing heavy fabrics.
  • Always test thread and needle size on a small piece of fabric which will be used for actual sewing.
  • Use the same thread for needle and bobbin.
  • Use the stabilizer material for fine or stretchy fabrics, and select the correct presser foot.
  • The upper thread tension must be set at 2-3 when sewing the lightweight fabrics, like silk and jersey etc.
Use the correct presser foot.

Important: Turn the main switch to off ("O") when carrying out all the operations!

SNMD33A1 Montieren des Naehfusshalters 1

1. Install the presser foot holder
NRaise the presser bar (A) by lifting the two-step presser foot lifter Attach the presser foot holder (B) as illustrated.

2. Inserting the presser foot
Lower the presser foot bar (B) until the groove (C) is directly above the pin (D). Lower the presser foot bar (A) as far as it will go. The presser foot (a) will engage automatically.

 

 
SNMD33A1 Montieren des Naehfusshalters 2

3. Removing the presser foot
Raise the presser foot. Press the lever (E) gently towards the front and the presser foot disengages.

4. Inserting the edge/ quilt guide (q)
As shown in the illustration carefully insert the edge/ quilt guide (q) e.g. For hems, pleats, etc.

Needle breaks

Replace the needle.

Important: Turn power switch to off ("O")!

SNMD33A1 Einsetzen der Nadel

Change the needles regularly, especially at the first signs of problems when sewing.

Insert the needle as in the illustration.
A. Loosen the needle clamp screw and tighten again after inserting the new needle.
B. The flat side of the shaft should be towards the back.
C/D. Insert the needle up to the stop at the end of the shaft.

Only use fully-functional needles.
Problems can occur with the use of:
- Bent needles
- Blunt needles
- Damaged points

Insert the needle correctly (flat side towards the back).

Important: Turn power switch to off ("O")!

SNMD33A1 Einsetzen der Nadel

Change the needles regularly, especially at the first signs of problems when sewing.

Insert the needle as in the illustration.
A. Loosen the needle clamp screw and tighten again after inserting the new needle.
B. The flat side of the shaft should be towards the back.
C/D. Insert the needle up to the stop at the end of the shaft.

Only use fully-functional needles.
Problems can occur with the use of:
- Bent needles
- Blunt needles
- Damaged points

Choose a needle size to suit the thread and fabric

tabelle

IMPORTANT: Match needle size to thread size and weight of fabric.

Please Note:

  • In general, fine threads and needles are used for sewing fine fabrics, and thicker threads are used for sewing heavy fabrics.
  • Always test thread and needle size on a small piece of fabric which will be used for actual sewing.
  • Use the same thread for needle and bobbin.
  • Use the stabilizer material for fine or stretchy fabrics, and select the correct presser foot.
  • The upper thread tension must be set at 2-3 when sewing the lightweight fabrics, like silk and jersey etc.
Use the correct presser foot.

Important: Turn the main switch to off ("O") when carrying out all the operations!

SNMD33A1 Montieren des Naehfusshalters 1

1. Install the presser foot holder
NRaise the presser bar (A) by lifting the two-step presser foot lifter Attach the presser foot holder (B) as illustrated.

2. Inserting the presser foot
Lower the presser foot bar (B) until the groove (C) is directly above the pin (D). Lower the presser foot bar (A) as far as it will go. The presser foot (a) will engage automatically.

 

 
SNMD33A1 Montieren des Naehfusshalters 2

3. Removing the presser foot
Raise the presser foot. Press the lever (E) gently towards the front and the presser foot disengages.

4. Inserting the edge/ quilt guide (q)
As shown in the illustration carefully insert the edge/ quilt guide (q) e.g. For hems, pleats, etc.

Loose stitches

Thread the machine correctly
Thread the bobbin case as illustrated.

Important: Turn power switch to off ("O")!

spule einlegen a

When inserting or removing the bobbin, the needle must be fully raised.

1. Open the hinged cover.

2. Pull the bobbin case tab (A) and remove the bobbin case. Hold the bobbin case with one hand.

 
spule einlegen b

3. Insert the bobbin (3) so that the thread runs in a clockwise direction (arrow).

4. Pull the thread into the slit and under the tension spring.

 
spule einlegen c

5. Hold the bobbin case between the index finger and thumb on the bobbin case tab (A).

6. Insert it into the shuttle race.

The needle size must suit the fabric and thread.

tabelle

IMPORTANT: Match needle size to thread size and weight of fabric.

Please Note:

  • In general, fine threads and needles are used for sewing fine fabrics, and thicker threads are used for sewing heavy fabrics.
  • Always test thread and needle size on a small piece of fabric which will be used for actual sewing.
  • Use the same thread for needle and bobbin.
  • Use the stabilizer material for fine or stretchy fabrics, and select the correct presser foot.
  • The upper thread tension must be set at 2-3 when sewing the lightweight fabrics, like silk and jersey etc.
Correct the thread tension.
fadenspannung a

A. Upper thread tension

Basic upper thread tension setting: "AUTO" To increase the tension, turn the dial to the next higher number. To reduce the tension, turn the dial to the next lower number.
1. Normal thread tension
2. Upper thread tension too loose
3. Upper thread tension too tight

Note: The upper thread tension must be set at 2-3 when sewing the lightweight fabrics, like silk and jersey etc.

 
fadenspannung b

B. Lower thread tension

Note: The bobbin tension is adjusted correctly during manufacturing, therefore no changes are necessary.

To test the bobbin thread tension, the full bobbin is placed in the bobbin case. The bobbin case and gripper are then suspended by the end of the thread. If the tension is correct, the thread will unwind by about 1.97 to 3.94 inch. when gently swung and will then remain suspended. If the full bobbin case unwinds, the tension is too slack. If the tension is too tight, it hardly unwinds or does not unwind at all. To adjust, use the screwdriver.

Seams gather or pucker

Use a finer needle.

tabelle

IMPORTANT: Match needle size to thread size and weight of fabric.

Please Note:

  • In general, fine threads and needles are used for sewing fine fabrics, and thicker threads are used for sewing heavy fabrics.
  • Always test thread and needle size on a small piece of fabric which will be used for actual sewing.
  • Use the same thread for needle and bobbin.
  • Use the stabilizer material for fine or stretchy fabrics, and select the correct presser foot.
  • The upper thread tension must be set at 2-3 when sewing the lightweight fabrics, like silk and jersey etc.
Check the thread tension.


fadenspannung a

A. Upper thread tension

Basic upper thread tension setting: "AUTO" To increase the tension, turn the dial to the next higher number. To reduce the tension, turn the dial to the next lower number.
1. Normal thread tension
2. Upper thread tension too loose
3. Upper thread tension too tight

Note: The upper thread tension must be set at 2-3 when sewing the lightweight fabrics, like silk and jersey etc.

 
fadenspannung b

B. Lower thread tension

Note: The bobbin tension is adjusted correctly during manufacturing, therefore no changes are necessary.

To test the bobbin thread tension, the full bobbin is placed in the bobbin case. The bobbin case and gripper are then suspended by the end of the thread. If the tension is correct, the thread will unwind by about 1.97 to 3.94 inch. when gently swung and will then remain suspended. If the full bobbin case unwinds, the tension is too slack. If the tension is too tight, it hardly unwinds or does not unwind at all. To adjust, use the screwdriver.

Use a backing for fine or stretchy fabrics.

Uneven stitches, uneven feed

Use stronger thread.

tabelle

IMPORTANT: Match needle size to thread size and weight of fabric.

Please Note:

  • In general, fine threads and needles are used for sewing fine fabrics, and thicker threads are used for sewing heavy fabrics.
  • Always test thread and needle size on a small piece of fabric which will be used for actual sewing.
  • Use the same thread for needle and bobbin.
  • Use the stabilizer material for fine or stretchy fabrics, and select the correct presser foot.
  • The upper thread tension must be set at 2-3 when sewing the lightweight fabrics, like silk and jersey etc.
Rethread the bobbin case and insert correctly.

Important: Turn power switch to off ("O")!

spule einlegen a

When inserting or removing the bobbin, the needle must be fully raised.

1. Open the hinged cover.

2. Pull the bobbin case tab (A) and remove the bobbin case. Hold the bobbin case with one hand.

 
spule einlegen b

3. Insert the bobbin (3) so that the thread runs in a clockwise direction (arrow).

4. Pull the thread into the slit and under the tension spring.

 
spule einlegen c

5. Hold the bobbin case between the index finger and thumb on the bobbin case tab (A).

6. Insert it into the shuttle race.

Do not pull on the fabric. It must be automatically moved by the machine.

The machine is noisy

Maintenance

Important: Disconnect the machine from the electricity supply by removing the plug from the mains socket. When cleaning the machine, it must always be disconnected from the electricity supply.

SNMD33A1 Wartung der Naehmaschine 1 Removing the stitch plate (A):
Turn the handwheel until the needle is fully raised. Open the hinged front cover and remove the stitch plate screws with the L-screwdriver.
 
SNMD33A1 Wartung der Naehmaschine 2 Cleaning the feed dog (B):
Remove the bobbin case and use the brush supplied to clean the whole area.
 
SNMD33A1 Wartung der Naehmaschine 3 Cleaning and lubricating the catch (C-G):
Remove the bobbin case. Snap the two catch retaining arms (C) outwards. Remove the shuttle race cover (D) and the catch (E) and clean with a soft cloth. Lubricate at the points indicated (F) (1-2 drops) using sewing machine oil. Turn the handwheel until the shuttle race (G) is in the left position. Replace the catch (E). Replace the shuttle race cover and snap back the two catch retaining arms. Insert the bobbin case and bobbin and replace the stitch plate.

Important: Fabric fluff and threads must be removed regularly!

Clean the hook and feed dog as described.

Important: Disconnect the machine from the electricity supply by removing the plug from the mains socket. When cleaning the machine, it must always be disconnected from the electricity supply.

SNMD33A1 Wartung der Naehmaschine 1 Removing the stitch plate (A):
Turn the handwheel until the needle is fully raised. Open the hinged front cover and remove the stitch plate screws with the L-screwdriver.
 
SNMD33A1 Wartung der Naehmaschine 2 Cleaning the feed dog (B):
Remove the bobbin case and use the brush supplied to clean the whole area.
 
SNMD33A1 Wartung der Naehmaschine 3 Cleaning and lubricating the catch (C-G):
Remove the bobbin case. Snap the two catch retaining arms (C) outwards. Remove the shuttle race cover (D) and the catch (E) and clean with a soft cloth. Lubricate at the points indicated (F) (1-2 drops) using sewing machine oil. Turn the handwheel until the shuttle race (G) is in the left position. Replace the catch (E). Replace the shuttle race cover and snap back the two catch retaining arms. Insert the bobbin case and bobbin and replace the stitch plate.

Important: Fabric fluff and threads must be removed regularly!

Only use good quality sewing machine oil.

Important: Disconnect the machine from the electricity supply by removing the plug from the mains socket. When cleaning the machine, it must always be disconnected from the electricity supply.

SNMD33A1 Wartung der Naehmaschine 1 Removing the stitch plate (A):
Turn the handwheel until the needle is fully raised. Open the hinged front cover and remove the stitch plate screws with the L-screwdriver.
 
SNMD33A1 Wartung der Naehmaschine 2 Cleaning the feed dog (B):
Remove the bobbin case and use the brush supplied to clean the whole area.
 
SNMD33A1 Wartung der Naehmaschine 3 Cleaning and lubricating the catch (C-G):
Remove the bobbin case. Snap the two catch retaining arms (C) outwards. Remove the shuttle race cover (D) and the catch (E) and clean with a soft cloth. Lubricate at the points indicated (F) (1-2 drops) using sewing machine oil. Turn the handwheel until the shuttle race (G) is in the left position. Replace the catch (E). Replace the shuttle race cover and snap back the two catch retaining arms. Insert the bobbin case and bobbin and replace the stitch plate.

Important: Fabric fluff and threads must be removed regularly!

Replace the needle.

Important: Turn power switch to off ("O")!

SNMD33A1 Einsetzen der Nadel

Change the needles regularly, especially at the first signs of problems when sewing.

Insert the needle as in the illustration.
A. Loosen the needle clamp screw and tighten again after inserting the new needle.
B. The flat side of the shaft should be towards the back.
C/D. Insert the needle up to the stop at the end of the shaft.

Only use fully-functional needles.
Problems can occur with the use of:
- Bent needles
- Blunt needles
- Damaged points

The machine jams

Remove the upper thread and bobbin case, turn the handwheel backwards and forwards by hand and remove the thread remains. Lubricate as described.
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