21
10、Common problems and Solutions
phenomenon
Picture
Cause analysis
Solutions
Waist cut
constantly
Cutter wear
1. Adjust the
adjusting screw of
lower cutter
according to steps
6.6-3 and 6.6-4
2. Replace the upper
and lower cutters
according to 6.6
There is
deviation in
the shear
length of
both ends of
the waist or
the loose
line position
of the line
trace
Wrong number of stitches
in front and back
blowing or shearing
delay
Refer to "mb2003d
waist pulling
machine - touch
screen interface
operation
instructions" to set
the number of
delayed blowing or
cutting needles
After the
waist is
sewn, the
upper and
lower pieces
are
dislocated
The upper and lower
rollers and feed dog are
not synchronized
Adjust the speed
ratio of the front
tug and the lower tug
according to the
steps in 6.4
Blowing or
cutter
failure
Position deviation or
failure of reflector
1. Check whether the
laser is normal
2. Move the
reflector position
or replace the
reflector
Winding of
front roller
or lower
roller
The shield is not
against the roller
Adjust the position
of the baffle
according to 6.5
