Ricoma Quick Start Guide
50
The top tension knobs allow users to quickly adjust tension
settings on a single needle. Before you start adjusting your
tension knobs, check the bobbin thread tension. The top
tension knob is pictured in Figure 120.
If too much top thread is showing on the back of your design,
tighten the top tension by rotating the knob clockwise. If too
little top thread is showing on the back of your design, loosen
the top tension by rotating the knob counterclockwise. We
always recommend starting with small quarter turns either
to loosen or tighten the tension. That way, you get a better
idea of how each tension adjustment affects your design
and get to know your machine better.
Tip:
Experiment by making small adjustments until you feel comfortable with your design. Keep in mind:
Every design is different and will require different tension settings.
The tension settings may vary by the thread’s manufacturer. While most brands tend to be similar, the
type of thread may have an effect on tension. For instance, polyester threads require nearly twice the
amount of tension as rayon.
• Rayon thread tension should be from 100 to 120 grams.
• Polyester thread tension should be from 120 to 150 grams.
Figure 120
Adjusting the top tread tension: Spring lever
Adjusting the top thread tension: Tension knobs
The spring lever controls the tension of all the needles, while the tension knobs control the tension of
the working needle.
We recommend maintaining the spring lever directly in the center, at a 90-degree angle. When adjusting
thread tension, position the lever one or two clicks either up or down from the center. The spring lever’s
placement will vary depending on your material and design.
• When sewing heavy materials, place the spring lever lower.
• When sewing lightweight materials, place the spring lever higher.
You should never place the spring lever neither all the way up nor all the way down, as either scenario
may result in thread breaks. If the spring lever is positioned all the way up, all of your needles’ threads
