MUTOH Unwinder, Maintenance Manual

Page: 41 / 101

Roll systems – Maintenance Manual
41
AP-74100, Rev. 2.0, 12/01/05
4.1.2.2. Adjust the start sensor
Step 1 :
Make sure that the start sensor is not covered and the “Automatic” switch is set to “Manual”.
(Switch in the up position.)
Step 2 :
Hold (or ask someone to hold) the front tensioning system in the 25° position. (Please see to the
angle markings on the front tensioning system. Please refer to the section “Angle mark front
tensioning system”.)
Step 3 :
Switch the Front to AUTOMATIC. (Toggle the switch down.)
¾
The “Automatic” LED will start blinking.
¾
The front motor will start turning at the initial speed (very low!).
Step 4 :
Rotate (“upwards”) the adjustment lip carefully until the start sensor is covered. (For the
adjustment direction, please refer to the section “Sensor disc and adjustment direction”.)
¾
The “Automatic” LED will light continuously.
¾
The front motor will start accelerating.
1 = Rear stop adjustment direction 2 = Rear start adjustment direction
3 = Front stop adjustment direction 4 = Front start adjustment direction
Step 5 :
Tighten the start screw on the adjustment lip.
Notes :
¾
If necessary during adjustment, return to the initial speed by toggling the “Automatic”
switch to manual and back.
Notes :
The stop sensor …
¾
… should be covered if the front tensioning system has an angle of less than
approx. 12°. (Front “Automatic” LED is OFF.)
¾
… should be open if the front tensioning system has an angle of more than approx.
12°. (Front “Automatic” LED is blinking.)
The start sensor …
¾
… should be open if the front tensioning system has an angle of less than approx.
25°. (Front “Automatic” LED is blinking.)
¾
… should be covered if the front tensioning system has an angle of more than
approx. 25°. (Front “Automatic” LED is ON.)