Elna International Corps. SA
Xquist
service manual
INDEX BY TROUBLES (MECANICAL TROUBLES)
Phenomenon
Item to be checked
Defective thread
tension
P-17 Height of the presser foot
P-20 Height of the feed dog
P-20 Inner hock detent
P-21 Tension release plate and base tension
P-26 Bobbin thread tension
P-40 Adjusting the actual feed amount
P-43 Adjusting the material thickness
Stitch skipping
P-17 Position of the presser foot
P-18 Height of the needle bar
P-18 Needle to hook timing
P-19 Clearance between the needle and hook
Thread
breakage
P-18 Height of the needle bar
P-18 Needle to hook timing
P-20 Inner hook detent plate
Hitched stitch
P-17 Needle entry
Defective feed
of the material
P-17 Height of the presser bar
P-20 Height of the feed dog
Contact of the
needle
P-17 Needle entry
P-19 Clearance between the needle and hook
P-26 Timing belt
Pattern shape
P-27 Disengaging the main shaft
P-27 Main shaft disengaging stopper
P-42 Longitudinal feed and lateral feed
Automatic
thread trimmer
P-21 Base tension P- Disengaging the knife P-24 Lateral position of the thread trimmer cam
P-24 Moving knife guide (upper)
P-25 Moving knife guide (lower)
P-25 Height of the looper
P-26 Bobbin thread tension
P-26 Timing belt
Noise
P-26 Timing belt
P-28 Motor belt
Buttonhole P-27
Buttonhole
Bobbin winder
P-32 Automatic bobbin winging device
Needle threader P-28 Needle threader
Embroidering
device
P-37 Replacing procedure of the motor
P-38 Adjusting the belt
P-38 Adjusting the origin
AUTOMATIC NEEDLE THREADING (TROUBLE AND CORRECTIVE MEASURE)
Trouble Cause Corrective
measure
Needle thread comes
off the thread
retaining section
when the transfer
body rotates and
comes down.
1.
The set needle thread does not enter
up to the root of shaft and is narrowly
retained at the top end.
Adjust the retaining pressure at
the upper position (see page 30).
2.
The retaining pressure does not
become high. Turn OFF the power,
and turn the driving shaft
counterclockwise. The retaining
pressure changeover plate woks and
the spring is compressed to increase
the retaining pressure
When the is not compressed,
check the adjustment of the
retaining pressure change-over
link (see page 30).
