Member postings for James Berryman

Thanks for the replies!

With the original switch (you might be able to make this out in the picture) the ear terminals are joined into a a single wire ring terminal which is bolted to the machine body with the the bolts that hold the switch in.

I could easily replicate this with the earth wires if I were to wire in the old switch. Can you just leave out the white wire.

Or more fundamentally, should I give up on the old switch and go back to the original idea of fitting the NVR switch? Is this advisible from a safety perspective?

Thanks Les,

I thought some pics would help:

Original switch

Replacement switch (which I was going to replace with a NVR switch

Could the original switch be used, despite only having three wires now?

Thanks

I meant to add I dont think the motor is original and it could have been at this point that the switch was replaced/changes to an external one for simplicity, the new motor is 230v.

Thanks all for the reponses, seems pretty straight forward.

That said on removing the original switch from within the body (aide from being slight gummed up with grease...and so I took it apart and cleaned) it appears to be functional, but the old cables coming into it have four wires, red, blue and white with the green linked to the drill case?

I wanted to to give it a try with the motor and see if ts any good and why it had been replaced by an external switch but the external switch only has the standard three cables coming in/out - not the white.

The original switch has 240v 16a written on it so I assume it should be suitible for single phase? I did read somewhere that the switches used for three phase machines (motors) could be used for 240v. Thats Said Im a little stumped by the extra wire.

It would be nice to get the original switch going again.

Thanks

James

Hi All,

I am replacing the switch on an old Fobco bench drill and have bought the following switch:

http://www.axminster.co.uk/kedu-nvr-switch-230v-1ph-e-stop-200093

The wiring for the live and neutral appears straight forward, but Im less clear on what to do with the earth. There doesn't appear to be any points to link the the earth from the mains and from the motor. The diagram provided shows them connected, but Im not sire where.

The found the below diagram for a similar switch:

https://d27ewrs9ow50op.cloudfront.net/manuals/h8240_m.pdf

Again showing the earth linked, but no details on where.

Currently the switch is straight forward three wires in and out.

Any help would be greatly appreciated

Thanks, James

HI Brian PM sent

Thanks Brian,

I now have this new piece of kit **LINK**

I will take the measurements tonight (new baby permitting) and PM you.

The plan is to fit a NVR switch as suggested. Need to work out which one would be most suitable for function, looks and connectivity.

Thanks all for the responses

Sounds like the tubing/pipe will be assigned to the "it will be useful one day" cupboard.

Many thanks Brian for the kind offer, I will PM you. I assume I will need more accurate measurements of the shafts and internal dims of the pulley rather then a best guess from a steel rule?

Im happy to purchase some more accurate measuring equipment. I have some spring calipers, but would assume I need a micrometer or vernier calipers? This company is 10 min from work and seem reasonable on price so could pop their at lunch - **LINK**

The drill was working well on purchase, but the weight of the thing and it being on the lowest speed is probably why. Will keep the existing motor for now as still working and seems quiet, but will look to:

• upgrade the switch (unfortunately it doesnt seem you can buy the original switch any more)
• Redo the wiring
• remount the switch near to the original location, the current set up is a little Heath Robinson, and get in the way of some the the drills functions

Thanks all for the replies.

I think I would change the old motor before the pulley as its a nice heavy cast iron one and I would like to keep the drill as original as possible, whereas the motor is an aftermarket one and looks to be quite a few years old.

No lathe Im afraid - I have ordered the tubing below. The spindle is 50mm and so 200mm should give me the opportunity to make a couple of mistakes.

**LINK**

it is 1/2 in diameter (which I have just thought after ordering I hope it means internal) with 1.6mm walls which would give me 15.9. 5/8 equals 15.875mm and so I hope I can get it to work.

Will need to cut the slot. The motor spindle is ground flat on one side and so would a hole be advisable?

Thanks

James

HI all,

I have recently purchased a Fobco star and am giving it a clean and light restorations. **LINK**

On inspection I noticed the motor pulley wasnt spinning centrally and on removing found it had a 1/2 inch motor shaft and a 5/8 pully with a home made aluminium adapter which is at least 1mm too small.

I found the below on ebay, but its in the US and seems a little steep to pay £20

**LINK**

Any suggestions on where I could get a similar product?

Thanks

James