Member postings for Fergus Davidson

Thanks for your comments everyone.

Martin, I'll systematically go through those suggestions and see what I find.

Speedy, the forward switching was a tiny bit glitchy when this whole thing started but after the first time, forward has been perfect. Reverse works once every 10 times but it feels like I'm damaging something so I've stopped trying.

Bob, it looks like a royal ball ache to remove the motor but I will do it if it's the last resort. I've loosemed the grub screw and eased the key back along the keyway and retightened the grub screw on the wheel. In a pitiful attempt at stopping the key moving again I've put a plastic cable tie on the end of the spindle. You never know a tiny bit of resistance might just stop it edging out.

I didn't realise I could send photos so I'll send a few in the next hour.

Thanks again all.

Hi everyone

I own an AUD and I have a couple of issues.

1) the key is slipping out of the keyway of the spindle on the rhs of the motor. I only noticed recently when the drive belt wheel was grinding against the wall of the motor compartment! The belt had twisted too so I'm glad I caught it early. This all happened when the key presumably slipped. I managed to get it all back into place with gentle use of a crow bar and I tightened up the grub screw in the spindle.

Sadly the key has slipped out again.

My first question is then, do I have to remove the motor to gain proper access to sort this out? There is virtually no room to work on this in situ.

2) a few weeks ago I was practicing thread cutting. I was starting and stopping the motor quite a bit, in retrospect maybe a bit too frequently. As a result the reverse switch began failing to engage.

If I hold the green start button in, I get a very noisy stuttering as the safety electrics keep shutting it off, like I'm pressing the stop button at the sage time.

So I opened the panel and analysed how things work. I can manually switch the reverse on by pressing the black button on the main junction box. The emergency stop doesn't engage. This makes me wonder if there is something wrong with the reverse switch controlled from the front panel. I am on single phase and the reverse switch had been working since I bought the lathe last year.

My second question is then, does anyone have experience of this happening? And if so can you advise.

Many thanks in advance!!

I'm contemplating getting an inverter as this would make quite a few things better and bypass the current setup.

Regards

Fergus

Thank you for the reply. That's really helpful.

Hi I have just bought a Myford ML7 and I want to know the maximum safe speed I can run it on white metal bearings. Thanks in advance