Harrison M300 The rebuild

[the snooper]

2nd generation Range Rover?

 

[hareng]

I thought a VFD has to be wired differently?

Output of mine goes directly in to the rotary switch 3 wires plus earth to machine, same as would be wired from 3ph 400V supply.

I did try the previous 4kw inverter wired direct in to the motor on a 3 sec soft start, but no help in what to connect to. 100 odd page manual that didnt tell what contacts did what. Needed up and running, months passed with no help from supplier either. Reminds me i want the dosh off the last 4kw one.

 

[ford34/2]

Did this all come to a very happy ending, both up and running?

Stan

 

[Shox Dr]

I used the Allen Bradley inverter, 4amps a channel but won't run the lathe at more than 800rpm as it slows down too much on big cuts. Just replaced the crossfeed screw with a Ballscrew, super smooth and zero backlash.

 

[octo0072000]

I used the Allen Bradley inverter, 4amps a channel but won't run the lathe at more than 800rpm as it slows down too much on big cuts. Just replaced the crossfeed screw with a Ballscrew, super smooth and zero backlash.

i did put up that 85KVA 3 phase Lister genny Dave that should run it for ya

 

[Shox Dr]

I wouldn't mind a Lister genny

 

[octo0072000]

I wouldn't mind a Lister genny

thats the one i put up seems to be lots on fleybay

http://www.ebay.co.uk/itm/lister-ge...3?pt=UK_Commercial_Trucks&hash=item4d2bf0e04f

 

[Shox Dr]

Too many pistons

 

[hareng]

I used the Allen Bradley inverter, 4amps a channel but won't run the lathe at more than 800rpm as it slows down too much on big cuts./QUOTE]

Three years on you still running that and KW rating?
Hows it wired 220V or 400+V

Had same trouble with a 4KW 400V inverter and a 5.5KW Transwave rotary and wouldn't say beefy cuts, far from it 2mm cut on 1 3/8" 6082 would see and hear it slow down to a standstill within seconds even at 540rpm.
10KW running 400V it immediately ramps up 4 yrs on. I cant put 1/2 the cut of what i could with a 1 1/2hp 1ph 240v Harrison 140, facing 3/8" off on 5 1/4" round on power feed at 1000rpm.

 

[mylesdw]

Finally got round to rebuilding my lathe to day. I'd sent it off (well the parts) to Brian Caddy at Slideway Services in Nuneaton. He regound the bed taking off a massive 70thou yes you read it right 1.6mm, and the same from the underneath of the saddle, rebuilding it with Marlon,
Really happy with the result. Brian is a top bloke. When I went to collect it he was starting on the 2nd of 14 Bridgeports from the RAF.

Can you give a rough idea of what that sort of work costs? I have an old Colchester that might need that sort of treatment one day...

 

[octo0072000]

Too many pistons

you want one of these then just the one piston you will need a genny head to suit it

http://www.ebay.co.uk/itm/Lister-CS...K_BOI_FarmingEquipment_RL&hash=item3f44db42b0

 

[Shox Dr]

Hareng
Still using the 240v> 240v Bradley.

Can you give a rough idea of what that sort of work costs? I have an old Colchester that might need that sort of treatment one day...

The M300 cost me £750. Best off giving him a call.

 

[scottmk1]

What ball screw did you fit to the cross feed?

 

[Shox Dr]

1605.

 

[scottmk1]

Can you elaborate? I'm looking to refurbish my newly acquired M300 & seeing as spares from 600 group are expensive I'm looking at alternatives.

 

[Shox Dr]

1605=16mm dia 5mm pitch. This keeps it as close it stock as possible. Though not a problem if you are using DROs

 

[scottmk1]

Ahh, thanks for that. have a dro so no issues there. I will investigate this further.

 

[Shox Dr]

Good, anything else let me know

 

[Crazeewelder]

How much for the regains service doc?

 

[Crazeewelder]

“Regrind”