Clarke cl300m motor

Hi, my motor has just burnt out & I need to purchase a new or reconditioned one any help on where to purchase, I've phoned Arc Euro trade and they tell me it's not the same as the one in the Sieg c3!! is this correct?.

If this is in the wrong section would the mods please move.

I should of mentioned that I knew Machine Mart were the distributor of Clarke tools, I was looking for something either cheaper or improved over the original motor.

Thanks though

Tony,

I'm about to change the motor on my Clarke CL500M from single to three phase and the only motor I have found that will fit foot and shaft size is the original manufacturer, any other motor would need modifications to the pulley and foot plate to fit.

Transwave stock the motor I need.

Martin P

Hi Tony,

Take a look at this thread: http://www.model-engineer.co.uk/forums/postings.asp?th=57639

I got fed up of burning out and bodging the motors and replaced the motor with a shaft in two ball bearings with a three-step pulley and the toothed pulley for the drive belt on it, driven by a two-step pulley on an old Hoover 0.5hp single phase motor. This gives 12 speeds with high/low gear.

The medium term plan is to fit a 3-phase motor with speed control.

Finally, don't tell anyone, but I 'heard' that if you use a multimeter to find out where there are open circuits between adjacent segments of the communtator you can bridge them with solder (away from where the brushes contact them) and get a year or more of extra life. Especially if you fit a 1 amp thermal breaker instead of a fuse.

Neil

hi there. can you halp me find a motor mounting plate for a clarke cl300m. clarke int, sead it is part of the motor and not for sale, thanks graham.

Hi Graham,

Can you describe the part - there wasn't a mounting plate on my CL300M? It was held on by two studs set into the case that protrude through the slots in lathe base, balanced by one or two screws through the threaded holes in the base.

neil

Hi Neil,

If you look at the parts diagram on the back page of the manual, and look at no.150 listed as simply 'motor', you can clearly see that there is a flat surface on the motor with four holes in it that mount to the bed. On phoning Clarkes, they informed me that the plate was part of the motor and couldn't be bought separately.

I bought the lathe with the motor and the control box taken off because the control box was damaged. I've repaired the control box and the original owner informed me that the motor was tested as ok and working. On reassembling the lathe, it appears that the motor is simply hanging on two bolts and isn't securely mounted.

If I can possibly find someone with an old burnt-out motor, I am willing to buy it from them as the plate should still be there. The motor has three mounting holes on it where it looks like this plate bolts to. If anyone can help at all with where I might find a plate, I'd be very grateful.

Cheers, Graham

Could you not perhaps fabricate your own plate? Ian S C

Graham,

Is this the part LINK?

Little Machine Shop has a very good reputation in the US for minilathe spares. They will ship stuff to the UK (I've used them) so it might be worth checking to see how much the postal charges would be. Not prohibitive in my case, and arrived a week later, but you could try taking an order through to the checkout to see how much it would cost.

Andy

Hi Graham

$21.30 postage takes it over the customs limit.

You will need to add something like £8 for the post office fee and 20% VAT.

Boosts the cost to something like £45.

regards David

Hi Graham

It does not look like a major fabrication job.

A bit of bent sheet metal with a few holes is all.

regards David

There are several motor mounts - the earlier ones simply used two bolts through the bed into the motor body, and adjusted for position/tension with two other screws pressing against the motor body.

The following link has a detailed procedure how to adjust it (scroll nearly to the bottom of the page)

**LINK**

Later machines do have a mounting plate as part of the motor, but as other posters have noted, you are reading Model ENGINEER - how hard is it to think something up and make it?.

My last post - subscription expires next month - not worth renewing.

Hi David ,

I can confirm that VAT is payable on postage and packaging costs, as in the UK if the total exceeds the limit.

Terry

Edited By Terryd on 05/07/2012 21:43:18

Many thanks for all your help everyone - at least I now have a starting point towards sorting this lathe out.

I'm probably reading too much into it to expect the motor to hold onto two flimsy looking bolts. I pictured the motor bouncing around during operation, which could lead to the belt jumping off. I've never had one of these lathes before so didn't know what to expect.

Cheers everyone, Graham

Hi Graham,

The bolt-direct to the bed arrangement isn't perfect - but if set up well it does stay put. The hazards are over tightening and stripping the studs, and the sheer awkwardness of getting motor alignment right.

Neil

Hi,

Please see photos - I'm looking to buy a plastic end cover for the motor of the cl300m. If anyone out there has one they'd be willing to sell, could you please let me know? Cheers, Graham

Hi Graham,

I have converted my CL300M to use a 1/3 HP Hoover Fractional motor, so I have exactly what you need!

Send me a personal message using the'message member' function and I will give you an address to post me a suitably large stamped jiffy bag, and you canm have it for free.

Neil

hi all i am a newbie but i am interested in all types of engineering have a mini mini lathe from First Tools boght off ebay supposed to be brand new £150 got it half stuff missing but i rebuilt it with proper bit nt the joint clamps that came with it works good but than i saw this clarke cl300m on ebay duff motor made an offer £195 and won looked at the motor armature burnt out but 12 coil sections and 24 commutator sections permanent magnet stator is it ac or dc rewired coils on a chop saw once but never done an armature any help would be gratefully appreciated good luck to all ....kev

If you are looking to rewind the motor, then you need to rethink about it, it’s not a task for the faint hearted…

It may just be a rotor with wire wound round it…..

Heres some typical info required to do the job..

What style is the commutator, specifically,the riser bars….how the coil ends are terminated.

What gauge of wire has been used?

How many turns of wire per coil is there?

What is the coil throw?

How has the armature been wound? Is it a Progressive or Retrogressive wind? (As this is a DC motor with magnets in place of a wound field, the rotation direction can easily be changed later..)

All this information is usually gathered when stripping an armature for rewinding…Mistakes can be costly.

I know this from experience having rewound a few….

Might be more cost effective to buy a new motor..

Edited By John Rudd on 13/08/2022 19:51:03

Have a look at the Arc Euro website.

As far as I know the CL300 is made by Sieg, and is C3 in disguise, Arc Euro list spares for C2 and C3 lathes,(Probably the same as the Chester Conquest ) so may well be able to supply a replacement motor., or other spares.

Howard