Underside lubrication points
Troubleshooting the Ultrafeed
®
The more we understand our machines, the better they work for us. Ultrafeed
®
Sewing
machines are actually rather simple, and adjustments can be easy if you take a little
time to get to know your machine. Use this next section as a guide to better understand
your Ultrafeed
®
and to help fine tune and resolve common sewing machine problems.
Thread Tension Doesn’t Release
If your thread won’t pull out of the top of the machine, even after you’ve raised the presser foot,
the core (
I
) of your upper tension assembly (
35
) might have pulled away from the machine. To fix
the tension, you will need to move the core closer to the machine.
1.
Remove the left end cover (p. 49,
13
) of
the machine, exposing the internal parts.
2.
Using an Allen wrench, loosen the set
screw located directly behind the tension
assembly (p. 49,
12
).
3.
With the presser foot up, push the upper
tension assembly in until you feel the first
signs of resistance.
4.
Check to make sure the tension disks
(
E
&
F
) are open and that the thread
moves smoothly.
5.
Tighten the set screw.
6.
Put the presser foot down to check that
the tension disks properly tighten. The
thread should not easily pull through.
7.
Replace the cover.
34
35
J
I
H
G
F
E
D
C
B
A
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28
Ultrafeed
®
Guidebook: Ultrafeed® Maintenance
27
