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6. The outer frame of the cloth presser
6-1) The thread trimmer cam
Decide the position of the thread trimmer cam screw
cannot be lifted or lowered.
screw is loose.
and fix it.
(Motor specification only)
6-2) Presser pulse motor malfunction
2-A) The presser pulse motor is
Replace the presser pulse motor.
(motor specifications only)
out of order.
2-B) Connection of presser pulse
Check the connector connections.
motor is improper.
6-3) Defective board
3-A) The board is out of order.
Replace the board.
3-B) Connector connections are
Check the connector connections.
improper.
6-4) There are inadequate fitting
Examine the positions for greasing.
conditions among the work feed
bar, the link, and the face plate.
The sewing material is not pressed completely by the
outer frame as a whole.
6-5) Supply air pressure is too low.
Adjust the supply air pressure.
(Air specification only)
6-6) Inadequate adjustment of the
Adjust the regulator.
regulator (air specifications only)
6-7) Solenoid valve malfunction
Reolace the solenoid valve.
(air specifications only
6-8) Inadequate adjustment of the
Adjust the speed controller.
speed controller
(air specifications only)
7. The intermediate presser does not
7-1) There are some inadequate
Check for the inadequate fitting and rattling conditions
rise after sewing.
fitting conditions in the intermedi
in the link mechanism.
ate presser link mechanism.
Examine the positions for greasing.
7-2) Intermediate presser variable
Adjust the intermediate presser variable.
is maladjusted.
7-3) Intermediate presser pulse
3-A) Intermediate presser pulse
Replace the intermediate presser pulse motor.
motor malfunction
motor is out of order.
3-B) Connection of intermediate
Check the connector connections.
presser pulse motor is
improper.
7-4) Defective board
4-A) The board is out of order.
Replace the board.
4-B) Connector connections are
Check the connector connections.
improper.
Trouble
Cause (1)
Cause (2)
Check and corrective measures
