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Page 19
IMPORTANT: Top tension should be adjusted only after
the bobbin case foundation tension adjustment is made.
Puckering, gathers and thread breakage occur when the
top tension is too tight. Loops and thread nests occur
on the back when the top thread tension is too loose.
Tension may need to be adjusted depending on the
fabric, thread or batting you are using on each project.
It is easy to set the top tension with the Janome Quilt
Maker Pro 18 Easy-Set Tension. To adjust the top tension
tighter, turn the tension knob clockwise. To loosen the
tension, turn the tension knob counterclockwise. Unlike
the bobbin-case adjustment, which requires minute
adjustments (like the tick of a clock), the top tension
knob might need to be turned anywhere from 1/4 of a
turn to two to four turns to achieve balanced tension.
Easy-Set Tension™ Adjustment
Cleaning and Lubricating the Machine
Only use light sewing machine oil in the Janome Quilt
Maker Pro 18. Internal oiling is not necessary on the
Janome Quilt Maker Pro 18 except when the machine is
taken to a service technician for routine maintenance
and cleaning. The hook assembly, however, needs
regular lubricating. Failure to keep the hook assembly
lubricated can cause severe damage to the machine.
To lubricate, turn off the machine. Remove bobbin and
case before oiling. Clean around the hook assembly
with a soft brush to remove lint. Put a very small drop of
oil on the hook in the region where the bobbin basket
assembly and the rotating hook meet (see Figure 22).
The bobbin basket is the portion of the hook that the
bobbin case snaps into. The bobbin basket remains
stationary while the hook rotates around the basket. The
oil lubricates the region where these two components
interlock. A drop of oil in the region indicated will work
its way back into the interlocking area of the hook and
bobbin basket.
The frequency of lubrication depends upon the usage
of the machine. Lubricating is recommended before
running the machine if it has not been used regularly,
or every other bobbin change if used frequently. After
oiling, always sew a scrap piece as oil may cling to
thread. Over oiling can cause excess dripping from the
bobbin assembly. Lack of lubricant may be noticed by a
change in the sound of the machine and will affect stitch
quality.
Maintenance
Figure 22
Cleaning the Touchscreen
Never use any chemicals to clean your display as this
may adversely affect the touch screen response. Use a
soft rag dampened with isopropyl alcohol and gently
wipe the display to remove any marks.
As you adjust the tension, a tension value appears on
the Main Screen (when the machine is turned on). make
a note of this value to easily set the tension again in the
future for the same type of thread.
Note: Before adjusting the top tension, remember to
floss or pull the top thread up into the tension discs or
it will float outside the discs providing little or no top
tension. This could cause significant tension or nesting
problems on the bottom side of the quilt.
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