Problem in DC Motor

Motor going bad.

Extruder bearing failing.

Extrudate too thick, overloading motor.

Hire a mechanic.

whats the ambient temperature? hows its cooling motor filter? is it clean?

whats the capacity of motor? me also experienced same problem in summer for 97kw motor and we provided cool air and its working well.

if it is fitted with drive, then drive will show the type of error code

Your DC motor probably has a device to control the RPM by changing the voltage supplied. If it has tripped a circuit breaker or blown fuses, the control device will have potentially been damaged. You can measure the voltage applied to the motor and check it against the capability of the control device. If it can no longer provide the voltage you need to run, then you need to replace it while it is out for repair.

If your DC motor uses brushes and a commutator, then it is possible that conductive dust from the wear of the brushes has accumulated to the point where it has caused a temporary short circuit.

Need to go back to basics - why has the motor tripped.

Has it gone on over current in which case with an extruder you may simply be driving it to hard.

You don't tell us exactly what you are extruding but if its plastic based is it melting and stressing the machine by stalling.

Is the machine coming out on temperature. Don't know where you are but you might have some sunshine - something that has aluded us for most of the summer .....!!

Some figures would be good - fuse sizes, motor sizes, voltage, temperatures and all of that good stuff.

Can we assume that 'off load' the motor runs OK?