Cropmaster Clutch

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Valiant Farmer
Posts: 10
Joined: Wed Aug 14, 2019 9:02 am
Location: New Zealand

Cropmaster Clutch

Post by Valiant Farmer » Fri Jan 03, 2020 8:15 pm

Hello,
As some of you know, I put a 30D motor into my 1950 Cropmaster(and put the original petrol clutch on the motor), and I am finding that the clutch is far too light when I am operating a topper. It is chiefly starting off it slips majorly if I'm not extremely careful.
Is it possible to upgrade the springs in the pressure plate? How available would they be in NZ?
Thanks!
Joshua

User avatar
db2d
Posts: 2196
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: Cropmaster Clutch

Post by db2d » Fri Jan 03, 2020 8:43 pm

The heavier duty clutch assembly has all the springs coloured green in place of the red.
Changing the complete assembly is probably the better option. Finding the correct springs to upgrade a cover assembly would be difficult in this country but obtaining a complete replacement would not be a problem.

Valiant Farmer
Posts: 10
Joined: Wed Aug 14, 2019 9:02 am
Location: New Zealand

Re: Cropmaster Clutch

Post by Valiant Farmer » Sat Jan 04, 2020 4:27 am

Thank you. What clutch did a 25D come standard with? I have a pressure plate off a 25D and a pressure plate off a narrow pulley Implematic(was thinking a 900 but poss 850?). The 900 clutch has yellow springs - what would that be rated for - heavy or light?

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cobbadog
Posts: 772
Joined: Tue Oct 11, 2011 6:18 am
Location: beautiful Coopernook NSW. near Taree. NSW. Australia

Re: Cropmaster Clutch

Post by cobbadog » Sat Jan 04, 2020 5:48 am

When I fitted a new clutch assembly in my 30C I just put the old assembly on the counter, gave him the details of the tractor and he looked up the replacement assembly which too 2 days to get in. Complete assembly including the thrust bearing. Was not a hard thing to find here in Oz. I figured it was best to fit all new while it was apart then to have to come back later and do it. At least you done have to split the tractor on these ones.

Valiant Farmer
Posts: 10
Joined: Wed Aug 14, 2019 9:02 am
Location: New Zealand

Re: Cropmaster Clutch

Post by Valiant Farmer » Sat Jan 04, 2020 7:02 am

cobbadog wrote:
Sat Jan 04, 2020 5:48 am
When I fitted a new clutch assembly in my 30C I just put the old assembly on the counter, gave him the details of the tractor and he looked up the replacement assembly which too 2 days to get in. Complete assembly including the thrust bearing. Was not a hard thing to find here in Oz. I figured it was best to fit all new while it was apart then to have to come back later and do it. At least you done have to split the tractor on these ones.
I agree! But for me it means a couple hours labour to see if one I have works, than it doesn't cost anything. But if it doesn't work I'm not that far behind!

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db2d
Posts: 2196
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: Cropmaster Clutch

Post by db2d » Sat Jan 04, 2020 8:12 am

A pressure assembly from a non-Livedrive 900 or Implematic single drive plate clutch would be suitable for a 30D.
The 25 series tractors had originally a lighter pressure assembly.

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