Kuhn HR300 power harrow

[Baker9]

I have one of these and was using it in the Summer on a reseed. The tractor suddenly stalled and stopped. When I looked closely there were three tine holders clashing. The one directly below the gear box on the two to the right of it. I took the lid off the harrow and got about half the grease out. The gear wheels all look ok and seem to be connected to the tine holders.
What is the most likely thing to have caused this apart from the slip clutch being seized. The gear wheels are held on with 55mm nuts.
All the tine holders would appear to have been time about before this happened, that is 90 degrees to each other, is this correct?
Is it possible for the tine holders to rotate on the shaft descending from the gear wheel?

 

[mixed breed]

Does it have thin tines that got threw a cast holder held by one bolt each?

 

[Baker9]

Does it have thin tines that got threw a cast holder held by one bolt each?

Yes

 

[bobk]

HR300 have roll pins holding the tine holder , one will be broken

 

[mixed breed]

As Bob says.
You'll need to correct the carrier, there's a drilling underneath to help you align, knock the odd ones out (no fun) and replace.

Two go back in, a hard one and a soft one

 

[Baker9]

HR300 have roll pins holding the tine holder , one will be broken

thanks, now to find the roll pin.

 

[v8willy]

As Bob says.
You'll need to correct the carrier, there's a drilling underneath to help you align, knock the odd ones out (no fun) and replace.

Two go back in, a hard one and a soft one

This, all done from below, it's as easy to pull the tine carrier off to knock the old pins out. Tines are a pig to change too.

 

[Baker9]

As Bob says.
You'll need to correct the carrier, there's a drilling underneath to help you align, knock the odd ones out (no fun) and replace.

Two go back in, a hard one and a soft one

I will need to throw it up on its side to see the marks. Would the carriers pull off the shaft with a bearing puller?

 

[mixed breed]

I've changed them on my back, but easier if you upend it. I've never had much success pulling them off, usually just knock them round with a sledge.

 

[bobk]

I will need to throw it up on its side to see the marks. Would the carriers pull off the shaft with a bearing puller?

Tip it on it's back , carriers come off easyish with a bit wd40 , then sort the clutch ... otherwise you'll end up with a f**ked tractor .

 

[Baker9]

Tip it on it's back , carriers come off easyish with a bit wd40 , then sort the clutch ... otherwise you'll end up with a fudgeed tractor .

Thanks

 

[Will 1594]

Andrew Geust buy some thing from him for the repairs. His knowledge and advice is priceless

 

[Baker9]

Andrew Geust buy some thing from him for the repairs. His knowledge and advice is priceless

I need to see what all I need first, but I will be in contact with him at some stage.

 

[v8willy]

I will need to throw it up on its side to see the marks. Would the carriers pull off the shaft with a bearing puller?

Yeah, 2 lugs on it for a puller if I recall.

 

[RP245]

Hi All,
Would anyone have a schematic of a HR 300 gearbox they could share or tell me how to go about changing the seals in it. Its leaking into the trough as well as at the input shaft.
Cheers.
RP

 

[Muck Spreader]

Hi All,
Would anyone have a schematic of a HR 300 gearbox they could share or tell me how to go about changing the seals in it. Its leaking into the trough as well as at the input shaft.
Cheers.
RP

Get your parts from https://andrewguest.co.uk/ and ask him how to fit them.