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124
Problem
The cloth is not feeding
smoothly.
The machine does not run.
Crunching sound occurs
when running the machine.
Patterns are distorted.
The automatic buttonhole
stitches are not balanced.
Pattern selection keys do
not work.
Threads frequently bunch
up on the underside of the
stippling design pattern.
Cause
1. The feed dog is packed with lint.
2. The stitches are too ne.
3. The feed dog is lowered.
1. The machine is not plugged in.
2. A thread is caught in the hook race.
3. The start/stop button is used for ordinary sewing with the foot
control plugged in.
1. Something is caught between the carriage and the arm.
2. The carriage is hitting something around the machine
1. The needle thread tension is too loose.
2. The stitch length is not suitable for the fabric being sewn.
3. Feed balancing dial is not properly set.
4. Interfacing is not used for sewing stretch and very ne
fabrics.
5. The embroidery hoop attaching knob is loose.
6. The embroidery hoop is hitting something around the
machine.
7. The fabric is not stretched tightly enough on the embroidery
hoop.
8. The fabric is caught or trapped when sewing embroidery.
1. The stitch length is not suitable for the fabric being sewn.
2. The feed balancing dial is not set properly.
3. Interfacing is not being used with stretch fabric.
1. The electronic control circuit is not working correctly.
2. The key position is out of alignment
1. The minimum length of the jump thread cutting is too short.
Reference
See page 121.
Make stitches longer.
See page 21.
See page 6.
See page 121.
See page 8.
Remove the object.
See page 83.
See page 34.
See page 33.
See page 82.
Use an interfacing.
See page 92.
See page 83.
See page 91.
Stop the machine
and free the fabric.
See page 39.
See page 82.
Use an interfacing.
Turn the switch off
and turn it on again.
See page 76.
See page 115.
To carry the sewing machine, hold the carrying handle with your hand, and support the sewing machine with the other
hand.
Clean the outside of the machine with a soft cloth. Do not use chemical solvents.
Store the machine and accessories in cool and dry place.
Do not store the machine in a area of high humidity, near a radiator or in direct sunlight.
The power supply cord, foot control and embroidery hoops can be stored in the semi-hard fabric cover.
Make sure to store the embroidery carriage arm before turning off the power switch.
Janome MC9900 Instruction Manual
Janome Embroidery Machine
www.aaasewing.com
MC9900 Owners Manual/ User Guide