3. Traction unit troubleshooting
SYMPTOM
DIAGNOSIS
ACTION
Pressure roller is shaky
Pressure roller shaft is broken
Replace pressure roller shaft
Traction roller turns in the
wrong direction
Problems in the rewinder clutch Release the breaking force of
the rewinder
Feltdisks are worn out
Replace the felt disks
Parallel pin inside the rewinder
shaft is blocked
Release the parallel pin clean
and lubricate it
Potentiometer settings have
no effect
DATA-HOLD-switch active
Switch it off
Motor is very hot
No fault
This is normal for a stepper
motor
Motor makes high frequent
noise
No fault
This is normal for a stepper
motor
Traction roller is shaky while
power on
Pin at the front flange of the tra-
tion roller is broken or worn out
Exchange pin or if necessary
exchange the complete trac-
tion roller
The toothed belt roll or the lock-
ing plate is broken
Exchange the toothed belt
roll or exchange the locking
plate and fix it tight
At higher labeling speed the
motor stalls
Too much friction of the
paperweb
Check the paperbrake
Add Teflon tape to the peel-
ing bar
Reduce all friction of the pa-
perweb where possible
At higher labeling speed the
motor stalls
Too much friction of the
paperweb
Check the unwinder dancer
Clutching force of the rewinder
is too high
Release the breaking force of
the rewinder or
replace the felt disks
Paperweb breaks behind the
paperbrake
Lateral paperguides hurt the
paperweb
Enlarge the space between
the paperguides
Paperbrake set too hard
Reduce the braking force
4. Control print troubleshooting
SYMPTOM
DIAGNOSIS
ACTION
Motor is dead, power switch
is not illuminated
No mains connected to trafo
Check for correct main
connection
Check main fuse
Check internal main switch
wiring
5999.515-01E 12.06.2007 WM
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