Donald Helm
- Sep 2, 2017
- 7
- Joined
- Sep 2, 2017
- Messages
- 7
Hello, my name is Don , my hobby is model engineering and I have a Myford ML7 lathe. My problem is -
In 1990 (yes 27 years ago) I fitted a readily available power cross feed.. This consists of a small geared 12 V motor connected to the cross travel lead screw , powered by a power pack. This consists of a PCB with a transformer , rotary variable speed control , a forward/stop/reverse switch and small resistors and other bits.
Earlier this year , it had been running fine but when I came to use it , the motor had lost both speed and power..
A electrician I know had a look at it and thought it was the motor so I bought a new one (they are still available) , fitted it but it was no better . I then renewed the transformer but still no better. One item I recognised was a capacitor and remembering from old car days how these could give trouble , I replaced it but still no better.
I am afraid I have now exhausted my limited knowledge and wonder if anyone can advise what the power loss could be.
In 1990 (yes 27 years ago) I fitted a readily available power cross feed.. This consists of a small geared 12 V motor connected to the cross travel lead screw , powered by a power pack. This consists of a PCB with a transformer , rotary variable speed control , a forward/stop/reverse switch and small resistors and other bits.
Earlier this year , it had been running fine but when I came to use it , the motor had lost both speed and power..
A electrician I know had a look at it and thought it was the motor so I bought a new one (they are still available) , fitted it but it was no better . I then renewed the transformer but still no better. One item I recognised was a capacitor and remembering from old car days how these could give trouble , I replaced it but still no better.
I am afraid I have now exhausted my limited knowledge and wonder if anyone can advise what the power loss could be.