Hi chaps,
I've been recently cleaned and lubricated a Farish Class 25. How warm should the chassis get whilst running?
Cheers
John
I did clean out the gaps in the commutator and fitted new carbon brushes, as the originals were badly worn. All of the motor bearings were lightly oiled as well as the gearshafts in the bogies. It's one of the older 5 pole motors with the drive dogs.
In case it's of any interest, there is a detailed service guide here: http://thefarishshed.com/class-25-service-guide/ (http://thefarishshed.com/class-25-service-guide/)
How much current is it drawing and at what volts?
I have found 5V to 6V a good point to measure current draw.
This is why a multimeter or a volt/amp meter is a must have for modellers.
Thanks chaps,
How do I measure the current draw on the motor?
Quote from: Jaguar68 on February 27, 2018, 07:12:26 PM
Thanks chaps,
How do I measure the current draw on the motor?
Hi there,
Do you have a multimeter?
Assuming you do...
With the scale set for Volts - measure across the motor connections
With the scale set for Amps - measure in series with the motor
Aspreviously mentioned - Use the speed controller with the miltimeter connected across the motor and increase the speed until you see about 6v on your meter.
Now - without changing the setting on the controller, reconnect the multimeter in series with the motor.
This should give you the current reading in amps.
A quick check on one of mine doing this gives a current of just over 200ms
Hopes this helps!
Phil H