Sm102-4

By revolution count, I'm speaking of the actual number of revolutions (on the lubrication screen) compared to the set value for lubrication frequency. The numbers on the picture.

 

Check for broken wire at solenoid for directional control valve. Do not work on the assembly with air/power energized. You will lose fingers. Common problem on this vintage assembly.

 

1) If the revolution count is the recycling count, then is 20,000 & 200,000 respectively as show on screen. Attached the new screen.
2) Not sure why the valve happening like this.

 

2) Wire checked , no broken wire found. Everything working, only wrong commands

 

Dear Sir;

Please review this;

1)The sensors

”Lubrication monitoring” 12B47(chains) +12B77(bearings) are fitted at the first
progressive distributor behind the motor.

a) clean very well,
b) tight very well the cables or connector
c) clean all oxidation
d) test the supply voltage for sensors
e) see if they are working good, you can test easy with the camera Cell, since IR sensors are invisible to the human eye, when you see to Camera cell, you must see ligth blue, otherwise the sensor is faulty. or defective.

2)
When the press is switched on, the grease lubrication
system is ready for operation. The motor for
grease lubrication 12M47 delivers the lubricant to
the progressive distributors via solenoid valve
12Y78.

a) test if the motor is coming, of course if the sensor is working good, test the input to the motor if they are voltages at terminal of motor, if NOT see why is NOT coming according with the schemati electrical diagrams
b) if they are voltage the motor can be defective, need replace or maintenance, ball bearing, LUBE, or winding(reheating) NOT burning, but need to recover with Varnish.
c) the solenoide vaolve, see if there are voltage or not, or if have mechanical problem, dirty, or defective and replace it 12Y78

 

Pneumatic impression ram...from what I see, you are missing a stage. When on impression, both rams should have shot outwards.

 

Side jogger lube cycle of 200K is satisfied, however chain lube of 20K is 15K over (past due). Heed Chock’s instruction for electrical fault, inspect under manifold for leakage from broken grease line.

 

Hi Chock & Junker1984, thank you for your reply. I will test the lubricant later.

However, the priority part is the other issue - function of the valve.
When its supposed to be ON but the valve turn OFF. When its supposed to be OFF but the valve turn ON.
But for the rest of printing units are work fine, only 1 of printing unit is work in other way.
Quite a strange problem, hope you can guide.

 

I cannot imagine a scenario where this is even possible, that is, the impression ram is working in reverse. I see in your picture the ram is removed from machine, yes? When that unit is told to go on impression (off, in your case), do both stages (shafts) shoot out? You might possibly exchange EAK (Input/Output) boards, meaning swap the board that is assigned to that unit with another unit...or feeder/ delivery. Order of boards, from right to left, is feeder, delivery, console, cabinet, then printing units .