PTO chipper

[Alan46]

I have a Koiti ck25 hst with a 4" chipper. My question is what's the proper way to get the chipper turning up to speed I currently have the tractor in neutral at about 1500 rpm and slip the clutch until flywheel doesn't pull the motor down then increase to 2600 rpm. any thoughts? Thanks for your input ️☮

 

[sea2summit]

Sounds about right, think I engage my chipper at about 1,100 but it's a switch so can't feather a clutch. Is 2,600 where you hit 540? I've got tach on the chipper and per manufacturer specs I usually run it slightly below 540 indicated on the tractor.

 

[ericm979]

Engage the PTO at the engine RPM that will work the least clutch slippage. The more your slip the clutch the more you wear it and the sooner it will need to be replaced. That involves splitting the tractor which is not an insignificant job.

 

[oosik]

I run my tractor at dead idle. Engage the PTO lever. When fully engaged - run the tractor up to 2160 rpm - this is a PTO speed of 540. The engagement of the PTO lever is neither slow or rapid. I simply push it forward and that's that.

 

[bigtiller]

Good luck with the chipper/shredder. Like the name implies, it's both a bear and a cat.

 

[Alan46]

Sounds about right, think I engage my chipper at about 1,100 but it's a switch so can't feather a clutch. Is 2,600 where you hit 540? I've got tach on the chipper and per manufacturer specs I usually run it slightly below 540 indicated on the tractor.

Thanks for the advice. ️

 

[Alan46]

Sounds about right, think I engage my chipper at about 1,100 but it's a switch so can't feather a clutch. Is 2,600 where you hit 540? I've got tach on the chipper and per manufacturer specs I usually run it slightly below 540 indicated on the tractor.

Yes 2600 is where I hit 540! I think I will start running mine slightly below also ️

 

[Alan46]

I run my tractor at dead idle. Engage the PTO lever. When fully engaged - run the tractor up to 2160 rpm - this is a PTO speed of 540. The engagement of the PTO lever is neither slow or rapid. I simply push it forward and that's that.

That dead idle sounds great. I I'll try it today. I know the less slippage the better, that's why I asked the masters️

 

[Hoobie]

My tractor has hst trans but has a clutch as well. I shove the clutch, engage pto at full idle , then feather out the clutch to start it going. Then rev to 2700 rpm for the 540. My theory is the main clutch can withstand better than the pto clutch. So I do this with all my pto implements

 

[Alan46]

Hey Hoobie, thanks for the reply, I just finished for the day, that is how I'm doing it from now on bro!️

 

[RalphVa]

Engage the wc46 at 1300 rpm idle and then rev to 2500, which is 450 rpm on the PTO. Don't need the hp. Just loafs along at 2500 rpm, probably about 16 hp at the PTO.

 

[Alan46]

Thanks everyone who helped me out!️

 

[AnotherBueller]

Just ordered a Nova Tractor BX52 chipper (Nova Tractor BX52 wood chipper) and a extra set of knives. $1600 for the chipper and $20 for each extra knife total $1680.00. It came with free shipping.
So for a extra $100 I got a heaver rotor, balanced for use at 1000 rpm (540 recommended) with a throat opening of 11" X 5" and needs 18 - 50 Hp.
I was looking at the BX42, it has a 4"X 10" throat and needs 15 - 45 hp.
I'll post pictures (if I can) and a review when it comes in.
Bob

 

[TerryR]

I have the same model Bearcat that you do. I start it just as you described, except at an engine speed just a bit above idle

 

[Alan46]

I have the same model Bearcat that you do. I start it just as you described, except at an engine speed just a bit above idle

Hey TerryR:

Do you find it hard to get to all the zerks? How many have you found?

 

[RalphVa]

Just ordered a Nova Tractor BX52 chipper (Nova Tractor BX52 wood chipper) and a extra set of knives. $1600 for the chipper and $20 for each extra knife total $1680.00. It came with free shipping.
So for a extra $100 I got a heaver rotor, balanced for use at 1000 rpm (540 recommended) with a throat opening of 11" X 5" and needs 18 - 50 Hp.
I was looking at the BX42, it has a 4"X 10" throat and needs 15 - 45 hp.
I'll post pictures (if I can) and a review when it comes in.
Bob

Cheap. Hope it isn't.

 

[TerryR]

Hey TerryR:

Do you find it hard to get to all the zerks? How many have you found?

No, not hard, impossible.

As I recall, there are four, in addition to those in the PTO shaft. There are also one or two where the chute swivels, which aren't important.

Of the four "real" ones, the one on the rear of the flywheel shift is easy, but the other end of that shift requires taking off the belt guards, which is a pain.

The other two are on the jack shaft that is turned by the PTO. As I recall the front one of those is easy, but the rear one has to be accessed through a hole in the rear plate that isn't big enough to get any grease gun I've found on it. I tried enlarging the hole but didn't have tools to make that work.

I finally after many years of fussing with the two difficult ones I fixed both with extenders. The one on the front of the flywheel shift I extended up through the belt guard by cutting a hole in it and using some brass nipples and fittings from the auto parts store.

The one on the rear of the jack shaft I extended with a hose from GreaseExtensionHoses.com. I found their standard 8-inch hose would reach out though a hole I drilled in the side of the frame that put the zerk there. It required a 6mm thread adapter to connect the hose to the bearing. (I used a second adapter from them to connect the auto supply fittings to the other bearing).

Getting the hose started in the hole on the bearing with the pully in the way was fun, but I figured out a way to do it. As I recall it involved masking tape and a piece of wood to keep the hose straight until the threads started.

 

[Alan46]

No, not hard, impossible.

As I recall, there are four, in addition to those in the PTO shaft. There are also one or two where the chute swivels, which aren't important.

Of the four "real" ones, the one on the rear of the flywheel shift is easy, but the other end of that shift requires taking off the belt guards, which is a pain.

The other two are on the jack shaft that is turned by the PTO. As I recall the front one of those is easy, but the rear one has to be accessed through a hole in the rear plate that isn't big enough to get any grease gun I've found on it. I tried enlarging the hole but didn't have tools to make that work.

I finally after many years of fussing with the two difficult ones I fixed both with extenders. The one on the front of the flywheel shift I extended up through the belt guard by cutting a hole in it and using some brass nipples and fittings from the auto parts store.

The one on the rear of the jack shaft I extended with a hose from GreaseExtensionHoses.com. I found their standard 8-inch hose would reach out though a hole I drilled in the side of the frame that put the zerk there. It required a 6mm thread adapter to connect the hose to the bearing. (I used a second adapter from them to connect the auto supply fittings to the other bearing).

Getting the hose started in the hole on the bearing with the pully in the way was fun, but I figured out a way to do it. As I recall it involved masking tape and a piece of wood to keep the hose straight until the threads started.

Wow, that was some story! If today was April 1st I would think you were b sing me would it be asking too much for you To post some photos of your feat of engineering Terry. ️

 

[TerryR]

Weather is supposed to be decent in the morning. I'll see if I can get down there and take some photos. I doubt I'll take off the belt guard, so you will only get to see part of it.

 

[Alan46]

That's fine whatever you can do without to much trouble!
I guess that's the only zerk I haven't greased never had the guard off bro. You seem like the kind of guy I'd like to have a drink with!