Rolland 700(5 color) feeder problem.

Hi fellows printers. I’m experiencing issues with my Feeder timing. When I start production, the feeder belt slows down big time. And sometimes the sideguide pulls the sheet over before it even reaches the headstops. I’m thinking it’s the clutch but sometimes while the feeders engaged, pile will go down but not up. Also will not inch up. Pile up light is lit but pile down light is out. If I press down on the foot from the top of the feeder head or if I press the big safety button, it works again. It does this intermittently everytime I stop the press to wipe a blanket or get rid of a hickey/or when the feeder knocks off.

 

Hi sounds like a board problem .when you said if you press the stop button it resets? You could check the timing on feeder hope you can resolve it would not hurt to call electrian

 

1. AEP NUL
2. Anl. on (cuplen)
3. Mash 180 degr.
5 Foto 1, 2 to position. (kardan)
Check the springs inside the suction head. Тhe presser foot should go down
Check the non-stop sensitive strip

 

When I press hard from top of foot, the pile inches up and it starts production normally. Could it be the spring that pulls the presser foot down is worn that it doesn’t have enough tension?

 

Check sensors in the suction head... Use el. diagram and check intput of sensors... I had situation on EVO 700 that tooth belt of head jump one tooth and head was not in phase with sheet flap when was in phase with machine...
When machine is on 180, transport on, lines in picture 1 and 2 must be inline.
Feeder timing must be 0 on trend display...

 

Sensors.
Foot down-> no light
2.5mm up first light
5mm, next,
7.5 mm next (3)

 

Which one would be the sensor for the pile down button? Bottom light is left side top light is right side.

 

Oh gotcha. You mean the gap between the sensors and the plate?

 

the distance should not be more than 0.5mm.

 

the very first step is to make sure the feeder timing is correct.
druckman share the service information with instructions how to set the feeder timing!
1.- using hand terminal set the feeder timing in 0.0 mm
2.-rotate the machine in base speed 3000 sh/h and press the button for feeder clutch
3.-when feeder is engaged press stop and now rotate machine jogging forward until reach the 180 ° in LCD display at printing unit 1
4.-the feeder timing is correct when the machine at 180° the red line on the circle cover of clutch is aligned with the other line at feeder wall at 12 o´clock
5.-at the same time the rotating valvle in the suction head must point down ay 6 o´clock
6.- at the A side of feeder you can find the belts for the feeder mechanism you can see the pulley that conects the feeder drive with the suction head belt this pulley has a red line that must point to the red mark at 3 o´Clock
7.- if marks do not match you can correct for example the red line under the table loosing the 13 mm hex head screws at shaft cardan, someone else must help you because you need to use the handle for the feeder B side pulling out and holding while other people loose the hex screws at cardan, when screws are loose now you can correct the position of mark rotating the feeder only forward, if you rotate backwards the clutch will disconect, do not lift the table because the position will be wrong!. if the mark below the table is aligned at 12 O´clock the others marks must be aligned too.
after finishig this procedure you must check the signal from the pressfoot in the suction head.

please let me know if this procedure is now OK

 

Issue has been resolved guys. It was the clutch just as I thought.

 

Hello there - i seem to be having the same problem with my Man Roland 300. If we force the foot a little bit down it goes up.

Did you replace the clutch or just adjusted the timing?

 

What is the clutch on this R300? Electric or air?
Either way, it doesn't hurt to check the feeder timing.
ser 311-314 - 182 degr.
ser 315-326 -156 degr.
ser 327-330 -167 degr.
ser 331 + 11 degr.

PP
It is good to write the production series of the machine.

 

The clutch is electric.

We adjusted the sensors in the head but no luck.

We opened on the A side to get to the clutch. What are we looking for there?

 

Feeder timing?

 

Where and how can we see the timing?

 

1. AEP NUL
2. Anl. on (cuplen)
3. Mash
ser 311-314 - 182 degr.
ser 315-326 -156 degr.
ser 327-330 -167 degr.
ser 331 + 11 degr.