Mitsubishi PLK-E1008H Technical Manual page 50

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