I have just purchased a Boxford Lathe

[RichardM]

preferably to move with the motor when tensioning the belt

 

[123hotchef]

I'll see what I can do. Thought I nailed it with the back gear micro switch. But no it ran for 3 or 4 seconds then cut off. Then after 30 seconds or so back to 2 seconds

 

[eLuSiVeMiTe]

I'll see what I can do. Thought I nailed it with the back gear micro switch. But no it ran for 3 or 4 seconds then cut off. Then after 30 seconds or so back to 2 seconds

Wouldn't be trying again till I'd checked every connection myself. My current lathe project was wired well excluding the earth motor earth was connected to the starter. Mains earth was connected to the isolator. Nothing linking the two.
Always worth checking a newly acquired machine. People do funny things with wiring,

 

[123hotchef]

Wouldn't be trying again till I'd checked every connection myself. My current lathe project was wired well excluding the earth motor earth was connected to the starter. Mains earth was connected to the isolator. Nothing linking the two.
Always worth checking a newly acquired machine. People do funny things with wiring,

I have no idea how it should be wired TBH, and it was working when I viewed it all those months ago

 

[eLuSiVeMiTe]

I have no idea how it should be wired TBH, and it was working when I viewed it all those months ago

Aye but working and safe are two different things.
Just open everything up and have a look. Should be some mans of securing that cap on the motor too.
If you hunt around you can probably find the single phase wiring diagrams for that lathe.

 

[Seadog]

Thought I nailed it with the back gear micro switch.

Interlocks will completely disable the motor. No running at all.

 

[123hotchef]

Interlocks will completely disable the motor. No running at all.

WELL THAT rules that out any other bright ideas

 

[123hotchef]

looks like the motor may be after ,market a 1hp 6amp motor made in Beckenham Kent

 

[123hotchef]

is there any way of testing this capacitor with a multi meter before I rewire and relocate it?

 

[Seadog]

You can do a quick test that will prove whether or not it's open or short circuit. Using the high resistance range you should see the meter reading go quickly from low to high resistance as the capacitor charges. It should eventually read infinity. If you don't get the initial flicker on the display or it ends up at a low ish value you can be pretty sure its faulty. A meter with a capacitance range would obviously allow you to measure the value.

 

[123hotchef]

it does look old could well be past it, what size cap would one need to replace it with

 

[Seadog]

What's written on it?

 

[123hotchef]

What's written on it?

i did not see any writting on the cap, i will take a closer look later

 

[123hotchef]

Nothing at all on the capacitor.

 

[123hotchef]

Here is the motor data plate

 

[Pete.]

I'd get rid of that for a nice 1450rpm motor - or a 3 phase.

Anyway, back to your problem. Someone mentioned the overload and I think you should look there first.

 

[123hotchef]

I'd get rid of that for a nice 1450rpm motor - or a 3 phase.

Anyway, back to your problem. Someone mentioned the overload and I think you should look there first.

I don't have 3 phase at home. I know there are converters. Let's get it up and running first. What is the over load for and what does it do apart from turn it on and off. What do I need to check.

 

[Pete.]

If you look at he bottom right there's a load of numbers and what looks like a pointer that seems to indicate that the overload is set to about it's lowest setting, near the number 18. If you find out how to adjust that upwards it will carry more current before it drops out. Might cure your problem.

 

[123hotchef]

If you look at he bottom right there's a load of numbers and what looks like a pointer that seems to indicate that the overload is set to about it's lowest setting, near the number 18. If you find out how to adjust that upwards it will carry more current before it drops out. Might cure your problem.

View attachment 178736

Ah thanks Pete I wondered what that was for I thought it was seconds or something for start up. I will give that a try later and report back. So you would not be swapping the old capacitor then

 

[123hotchef]

Well I adjusted it to 27 it ran for a bit longer then turned off again. Then after starting it again we are back to a second if i wait a minute of so i get a bit longer run time