DURKOPP ADLER 755 A Service Instructions Manual page 192

3. Pull the transport clamp to the front by hand.
4. Pull the transport clamps to the front.
5. Align the light barriers with the middle of the reflecting foils (1).
Fig. 187: Aligning the light barriers (2)
(3) - green LED
(4) - orange LED
 The range from seam beginning to seam end must be checked on
Fig. 188: Aligning the light barriers (3)
(5) - Light barrier holder
(6) - Screws
6. Swing out the light barrier holder (5).
7. Loosen screws (6) and (7).
8. Align the light barriers on the reflecting foils (1).
190
③
④
the clamp.
• Orange LED (4) on: Reflection present
• Orange LED (4) off: reflection not present
• Orange LED (4) flashes: weak signal, re-align light barriers or
replace reflecting foils
• Green LED (3) on: Switching signal stable
• Green LED (3) off: Clean, readjust, or replace the light barrier or
replace the reflecting foil
⑤
(5) - Light barrier holder
⑥ ⑦
(7) - Screws
Service Instructions 755 A/756 A - 00.0 - 02/2019
Light barriers
④
③
⑤