HIGHLEAD HLK-03, Instruction Manual

Page: 32 / 62

27
Bad
condition
Cause Remedy Ref. page &
item
7.
Stitch forming
is loose
Upper thread tension is not
tight enough
Increase upper thread tension 6-3
Thread tension regulator’s
discs are opened during
sewing
Adjust tension regulator position
properly
7-15
Adjust upper tension release position
properly
7-15
Needle and shuttle hook is
in wrong
Adjust needle and shuttle
hook position
7-2
Driver and shuttle hook
clearance is very small
Adjust clearance between
driver and shuttle hook
—
8.
Sewing
machine does
not work even
start switch is
turned ON
Cables wiring is
disconnected
Connect all cables precisely 3
System software is not
loaded
Turn OFF the power and turn ON the
power again after some time.
Instruction manual
Emergency stop switch is
kept ON
Release emergency stop switch lock 6-1
9.
Work holder
does not work
Work holder activate cable
is disconnected
Connect the cable precisely Instruction manual
Work holder activate cable
is not strong enough
Increase work holder pressure 7-7
Work holder switch is out of
order
Change it new work holder switch —
10.
Sewing pattern
is distorted
Sewing material is too
heavy
Decrease sewing speed 6-2
Decrease feeding speed
Instruction manual
Select heave material setting
Instruction manual
X or Y driving gear
clearance is not proper
Adjust X or Y driving gear
clearance
7-18
11.
Work holder
does no stop at
home position
X-Y detectors cable are
disconnected
Connect X-Y cables precisely
—
X-Y detectors are out o
order(Red pilot lamps do not
go on at home position)
Change them new detectors
(Make sure red pilot lamps go
on at home position)
—
Detector and detector plate
clearance is too big
Adjust the clearance properly 7-17