Delta 46-460

Re: Delta 46-460

JohnV

I had this problem with my controller. Find an electrical motor repair shop that is certified for Baldor repairs. A local shop in Kansas City area fixed fine and thoroughly checked it out for about $100 labor charge. It seems that The controllers on these lathes had some quality control problems with "cold solders"

Re: Delta 46-460

mikeee12345

Based on a few specs I looked at for this lathe, it uses a 90VDC 1HP 1725RPM motor and a DC speed controller to adjust the speed of the motor. If Delta no longer supports this equipment you might be able to retrofit to a generic DC speed controller that is rated for your motor HP and load application. The other option would be to have someone troubleshoot the DC controller to determine the component that has gone bad. Most electronic repair shops would be able to diagnose the problem with this type of controller which is very commonly used for various applications. Grainger sells a generic 90VDC speed controller which would work for your application.

Internet is awash with this issue since day 1

Dick Coers

The electronics have been an issue with that machine for a long time. Bad potentiometer, bad solder joints on the control board, dust in the switch, bad reverse switch. Delta has always blamed the issues on people overworking the lathe when doing large bowls. Last I read, Delta has parts now in stock. It took them forever to start carrying parts. There is a type 1 and a type 2 version of that machine. Type 1 had the switch more to the back and constantly broke during shipping. Type 2 has the switch on top.

Sawdust in the switch is the problem you hope for. Do some disassembly and hit everything in the box with compressed air. I think you can disassemble the main with to clean out the inside.https://thepatriotwoodworker.com/forums/topic/19773-delta-46-460-repair/

Re: Delta 46-460

Bill Boehme

The most likely part to fail on anything is a potentiometer (the speed control in this case). If you don't mind spending a few dollars on a new speed control pot you have a high likelihood of saving a huge amount of money in getting unnecessary parts. Don't get the pot from Delta, you can save a lot of money by getting it from an electronic components distributor. Mouser is a local place here that also sells through the Internet. The symptoms that you described are a pretty good indication of a failing pot.

A mechanical variable pot is the most ......

JamieDonaldson

...potential wear failure part in speed control circuits on most lathes with a rotating speed control knob. I have seen many turners who use that pot for an ON/OFF switch, vastly accelerating the potential for wear failure, so use the ON/OFF switch instead, as intended!

Anyone ever use contact cleaner successfully?

Dick Coers

Ever since these things started having electrical problems, I've held my breath. Just the perfect sized machine for the ornaments and small work. I had one Jet dust collector that I was able to take the switch apart to remove all the dust, just wondering if the pot and switch can be easily disassembled for cleaning on the Delta?

Re: Anyone ever use contact cleaner successfully?

john lucas

I've had good success with contact cleaner on pots. Not always on switches unless I dissassemble them some although it worked like a charm on my dust collector remote the other day.