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1. Wiper cannot spread a thread 1-1)Interference between wiper 1-A)Wiper mounting position is Adjust the wiper position.
and needle inadequate.
1-2)Displacement of front-rear 2-A)Wiper mounting position is Adjust the wiper position.
wiper position inadequate.
1-3)Thread holding before wiper 3-A)
The right left wiper mounting position
Adjust the wiper position
action is inadequate. (insufficient
distance to the needle).
2. Abnormal noise 2-1)Backlash between the oscillator Check oscillator gear positioning and adjust the
and the shuttle driver shaft is lower shaft gear backlash.
large.
2-2)Too much clearance between Adjust the clearance between the shuttle and the
shuttle and shuttle driver shuttle driver.
3. Deformation in sewn patterns 3-1)Too much backlash in the 1-A)Backlash is too much in the Adjust backlash of motor base.
Y feed gear Y feed arm and the motor base.
1-B)
Backlash is too much in the Y feed
Adjust backlash of Y feed pulse motor.
pulse motor and the motor base.
3-2)Too much backlash in the Adjust backlash of the X feed gear.
X feed gear
3-3)Travelling torque in X direction 3-A)The motor is pressed against Adjust backlash of the motor.
is excessive. the X feed arm too strongly.
3-B)The feed plate or the work Tighten the set screw further for the needle hole guide.
clamp foot is caught by the
needle hole guide.
3-4)Travelling torque in Y direction 4-A)The pulse motor is pressed Adjust backlash of the feed motor gear.
is excessive. against the Y feed shaft too
strongly.
4-B)Friction is excessive between Install the cloth feed support plate.
the Y feed arm and the cloth
feed support plate.
4-C)The feed plate or the work Tighten the set screw further for the needle hole guide.
clamp foot is caught by the
needle hole guide.
Trouble Cause (1) Cause (2) Check and corrective measures
11. Troubles and corrective measures
(1) Troubles and corrective measures (Mechanical parts)
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