Brother 882-T51 Operation Manual page 174

Symptom
The area around the hole in the needle
plate is damaged.
The needle is touching the needle
plate.
The presser foot is set too high and not
correctly positioned.
The needle hits/touches the presser
foot.
Using a weak thread like a metallic
thread.
Sliding surface on hook is not smooth.
The upper thread
There are burns on it.
breaks.
The thread is loose in the hook area.
The play between the hook and the
race is too much.
The hook does not rotate smoothly.
The space between the hook stopper
and the hook cannot be adjusted.
The upper thread is not threaded
correctly.
Upper thread is not positioned in upper
or middle guide plate.
The lower thread tension is incorrect.
The thread does not roll out of the
bobbin case smoothly.
172
Probable Cause
1 Scratches/Burrs
1 Needle
2 Needle plate hole
3 Needle touching hole
1 Hook race area
Remedy
Replace the needle plate or consult
your nearest authorized Brother dealer.
Consult your nearest authorized
Brother dealer.
Consult your nearest authorized
Brother dealer.
Slow down the machine embroidering
speed.
Consult your nearest authorized
Brother dealer.
Remove the loose thread. If the thread
is tangled in the hook, clean the hook.
Consult your nearest authorized
Brother dealer.
Remove lint, clean and apply oil.
Consult your nearest authorized
Brother dealer.
Pull the upper thread by hand from
below the presser foot, and check that
the thread moves smoothly. If the
thread does not move smoothly, it is
not correctly threaded.
Unthread the machine and
rethread the machine.
Make sure the thread is correctly
positioned in the needle bar thread
guide.
Make sure thread passes completely
under upper and middle guide plate.
Adjust the lower thread tension.
Reference Page
p. 99
p. 164
p. 164, 168
p. 48-51
p. 48-51
p. 91