Hot air from electric motor on C4

Aaron David
on 17 Jun 13 (09:31)

I have a C4 built in the late 60s, the small electric motor that runs the C4 blows a lot of hot air from it.
Does this mean the electric motor is over worked?
It runs smooth.

mikefrommontana
on 17 Jun 13 (11:22)

Is the motor itself hot? If you can disconnect the mold cooling blower duct at the motor, that might give you an idea. Also, the motor is using the blower air to cool the motor windings. Lubrication and blowing out the motor coils with compressed air would be good maintenance activities in any instance.

Aaron David
on 17 Jun 13 (11:57)

No the motor doesn’t feel hot, just hot air blowing from it.

Elrodfk
on 19 Sep 13 (18:58)

There are two motors on a C4 ½hp main drive under the clutch and another behind the keyboard which is the blower motor for cooling the moulds, I don’t mean to be rude but is the hot air coming out of a pipe in the vice next to the mould wheel? If it is then that is the air cooling the mould wheel and is perfectly fine.