Needle and shuttle hook
clearance is too big
djust needle and shuttle hook A
clearance properly
7-2
Needle and shuttle hook
timing is not correct
Adjust needle and shuttle hook
7-4
timing properly
Needle is bent Change it new needle ----
Needle is bent by driver
Adjust needle and diver clearanc
properly
e
7-5
Presser foot pos Adjust presser foot pos
properly
7-7
Upper thread tension is not per tension release
7-18
tight enough
Adjust up
position properly
Thread tension regulator’s
per tension release
6-6
discs are opened during
sewing
Adjust up
position properly
Presser foot position is not
correct
Adjust presser foot position
7-7
properly
Driver and shuttle hook diver clearance
7-5
clearance is very small
Adjust needle and
properly
Presser
timing is not proper
Adjust pre
Cables wiring is
disconnected
Connect all cables precisely 3-6,3-11
System software is not
box
5-1
loaded
Load system software to control
Emergency stop switch is ch
6-1
kept ON
Release emergency stop swit
lock
Start switch breaks down ge it new start switch Chan ----
start sw
turned ON
it
The test mode is valid Change to the operation mode
Synchronizer cable is ect synchronizer cable Control
disconnected
Conn
precisely unit
9.
Sewing machine
runs idle when
power switch is
turned O
ble
N
Synchronizer has a trou Change it new synchronizer ----
Work holder activate cable is
Connect the cable precisely
Control
disconnected
unit
strong enough
10.
Work holder
does not work
itch breaks
Change it new work holder switch
Work holder sw
down
----
6.
Skip stitching
often happens
ition is not
correct
ition
7.
Stitch forming
is loose
foot up and down
sser foot timing properly 7-7
8.
Sewing
machine does
not work even
ch is
6-4
Work holder pressure is not
Increase work holder pressure 7-12
45
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