SM74 main motor problem

[mpouf]

Hello
I have a SM74-4PH 1997 model
Today, while printing with 11,500 sheets, a sudden noise was heard as if a strap was being rubbed and the machine stopped immediately.The problem is the main motor.We opened it with an engineer so that the bearings were down but that's not the problem.The problem is that the rotor is stuck on the coil and the spindle does not rotate.It is'nt written in CpTronic ''any error''.

Do you have any idea what to do?
Best Regards

 

[junker1984]

Have you paged through the dynamic pages 1 - 5 history of faults? I'm surprised there are no initiation errors, in current or history, but it really doesn't matter. If, as you say, the rotor is seized to the windings, a complete tear down and rebuild is required.

 

[CHOCK]

Hi sir:
As the colleague Mr Junker say, rebuilt is required.
You must understand, and if you read very carefully the operator manual Heidelberg, require in the sheet Schedule
LUBE, and maintenance, any Electrical Motor, required of special LUBE every 12 Months, for to avoid happen the problem that you have now.
Take the motor to some shop repair electrical motor, and exchange every damaged parts, or consider to replace ,for Rebuilt used electric Motor.
Normally if there are problem Init-Test appear a message in the display.
However if malfunction occurs while the press is running, troubleshooting can be made easier by selecting DYN-test display.

 

[mpouf]

Τhanks for your answers
If the rotor is theoretically correct there is a problem when it is electrically connected to the machine?Because it has to connect to the encoder it has to synchronize with some modifier?
There is some danger?
Best Regards

 

[junker1984]

Not danger, as such, but diagnostics will see issue with encoder if not calibrated, and motor will not energize.

 

[Classic Ramkumar]

Hi sir:
As the colleague Mr Junker say, rebuilt is required.
You must understand, and if you read very carefully the operator manual Heidelberg, require in the sheet Schedule
LUBE, and maintenance, any Electrical Motor, required of special LUBE every 12 Months, for to avoid happen the problem that you have now.
Take the motor to some shop repair electrical motor, and exchange every damaged parts, or consider to replace ,for Rebuilt used electric Motor.
Normally if there are problem Init-Test appear a message in the display.
However if malfunction occurs while the press is running, troubleshooting can be made easier by selecting DYN-test display.

How can we maintain main motor ?what is ppm for main drive motor

 

[CHOCK]

ppm)= planned preventive maintenance.

You must go according with the international ppm, is about 1 year the ppm.

 

[Classic Ramkumar]

How to maintain main motor

 

[CHOCK]

You can do it in 3 ways:
1) x his personal maintenance

2) by Heidelberg

3) or other specialist maintenance motor

Every 12 months!!

Blessings

 

[Classic Ramkumar]

I am Having a Issue In Main Motor.Does Anti Setoff Powder causes MainMotor to Stuck.Can I Share pics of my motor?

 

[Adil]

Which problem do hou have , can hou explain more please ??

 

[Classic Ramkumar]

Main motor is not running....When We ON the machine....When we on the machine...Beep sound hears and break releases but main motor is not running....One of the Technician who came to check the Drive said that there is a pbm in Main motor....So we gave motor for checking....There they are saying that there is a pbm with break and winding....Will it occur?we purchased our machine in 2009 only Print master 74 -4 College.

 

[Adil]

Normally the Heidelberg engines are reliable and robust, now you tell me that you bought the machine in 2009, it seems odd to be burned out in this short time, especially if you bought a new machine. Motor repair work is a bit tricky and in most cases the winding specialists cannot fix it. I advise you to order another engine in good condition and above all to inspect the cause of the problem, because it rarely happens