I volunteer at a wood shop on a military base. We have an old Delta DL40 lathe, model 46-401, and I'm trying to repair the motor speed control board. I know they're notorious for failing, but we don't have a lot of resources. I found a burnt transistor on the board, but the board is missing the F1 fuse. Does anyone have this model who can tell me what type of fuse should be there? Thanks!
Thanks, but I have the manual. I'm an electrical engineer, so I'm the guy taking a look at it. I've seen a few people on here that have this lathe, so I was hoping someone could tell me what F1 is. Unfortunately, there are no markings on the board, and Delta says that they don't have any drawings or schematics. If I can't repair the board, I'll look into getting an AC motor and VFC controller.
How was I to know you are an electrical engineer? Message board gurus give us smell a-figuring; need it to sniff this kind of stuff out!
Know people with that lathe took speed control unit to a repair shop and tech had them fixed in very short time. Delta company sold a couple of times since that lathe came out.
Might have better luck with new motor & VFC controller.
Stanley/Black&Decker destroyed all that stuff (reference material, extra parts, castings, etc.) during their ownership of Delta so the company is starting over, might be a tough part to find.
I'm not very familiar with that particular lathe but I believe it is a DC motor. Is it feasible to use a different controller board, like an MC60?
What type of fuse? A little standard cartridge type? Or is it something like a MOV (I hate them things)? I can't find a parts diagram for the board, so a picture would be helpful.
If knew what I was doing (I don't) would cruse sites like this to find a replacement speed controller; if could not find the right fuse. Yes seems a waste when garden variety fuse might only cost a buck or less.
A picture might be helpful in determining the type. Replaceable fuses generally have a number/code on them that could be useful in tracking down what you need. I found this PDF that says there are a total of 3 fuses in that controller. "F1" is the only one that's "customer replaceable"- I take that as a challenge.
lew! Awesome sleuthing there. Having a part number is a HUGE help. I know it's just a basic cartridge fuse, so if I can get a current rating, it should work.
I just developed a problem with my dl40 controller
If yours is like mine the fuse is ceramic 20 amp 240 v
I will start component testing tomorrow but not seeing any help out there for this control unit… if I find any I will post!
And would appreciate everyone doing same
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