Maintenance - Pfaff powerquilter 16.0 Owner's Manual

Loosen Top Thread Tension
To loosen the tension, turn the top thread tension knob
(page 10, Figure 1, #5) counter-clockwise.
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. If the
top tension is too loose (causing loops of thread on the
underside of the quilt) and no amount of tightening the
top thread tension knob seems to affect it, there's a good
chance that the thread is riding on the outside of the
tension discs and is not "flossed" between them.
Having set the bobbin thread tension properly, and the
top thread looks like Diagram A:
Having set the bobbin thread tension properly, and the
top thread looks like DiagramB:
Tight Top Thread
Diagram A
Loose Top Thread
Diagram B

Maintenance

NOTE: Turn off the machine and remove the power cord
when performing maintenance on the machine.
Cleaning and Lubricating the Machine
Only use light sewing machine oil in the
quilting machine. Internal oiling is not necessary
16.0
on the
powerquilter ™
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.
Page 20
A stitch is balanced when the
top thread and the bobbin
thread meet in the middle of
the quilt sandwich.
Problem: The top thread is too tight.
Solution: Loosen the top thread tension discs.
Problem: The top thread is too loose.
Solution: Loosen the top thread tension discs.
6
Figure 16
powerquilter
quilting machine except
16.0
To lubricate, turn off the machine. Remove the 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 17). 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 stitch through a scrap piece of fabric,
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.
Cleaning the Touch-Screen Display
™
Use a soft rag dampened with isopropyl alcohol to
gently wipe the display and remove any marks. Never
use any other chemicals to clean your display as they
may adversely affect the touch-screen response and
clarity.
Figure 17