Troubleshooting; Amount; Refer To "Skipped Stitches Occur - Brother KE-436C Instruction Manual

15. TROUBLESHOOTING

15. TROUBLESHOOTING
Turn off the power switch and disconnect the power cord before carrying out troubleshooting, otherwise the machine
will operate if the foot switch is depressed by mistake, which could result in injury.
Problem
Work clamp does not
rise.
Work clamp lift amount
is incorrect.
Thread wiper does not
operate correctly.
Lower thread winds to
one side.
Lower thread winding
amount is incorrect
Thread comes un-
threaded.
63
Cause
Work clamp operation is
sluggish.
Work clamp lift amount is
too great.
Work clamp is contacting
thread wiper.
Incorrect position of
presser arm lever plate.
The thread wiper is ob-
structing the needle.
Thread wiper position is
incorrect.
Bobbin winder thread
tension stud height is
incorrect.
Bobbin presser position is
incorrect.
Stitches being skipped at
the sewing start.
Uneven upper thread
length.
Upper thread is too short.
CAUTION
Check
Sliding part of the work
clamp lubrication
Distance between work
clamp and top of needle
plate
Thread wiper standby
position
Distance between work
clamp and top of needle
plate
Clearance between
thread wiper and needle
tip
Thread wiper position
Thread wiper position
Bobbin winder thread
tension stud height
Thread winding amount
Refer to "Skipped stitches
occur"
Upper thread length
Thread take-up lever
stroke
KE-436C
Remedy
Grease the sliding part of
the work clamp.
Adjust the height of the
work clamp to within 25
mm.
Adjust the position of the
thread wiper.
Adjust the work clamp lift

amount.

Adjust the height of the
thread wiper.
Adjust the operating dis-
tance of the thread wiper.
Adjust the operating dis-
tance of the thread wiper.
Adjust the height of the
thread tension stud.
Adjust the position of the
bobbin presser.
Refer to "Skipped stitches
occur"
Adjust the sub-tension.
Adjust the thread take-up
lever stroke.
Page
44
44
47
44
47
47
47
30
30
64
32
41