TO20 Front Pump Installation

Smiles79 · Aug 15, 2023

I just got the tractor put back together after putting the new crank pulley and splined hub on so that I can mount a front pump. When I insert the shaft, it doesn't look like there's enough sticking out past the radiator to allow a coupler to be installed (I got this shaft from Steiner, said it would fit a TO20). Does this look right? I assume the shaft needs to be inserted into the splined hub as far as it will go?

https://imgur.com/a/YW3viTs

caterpillar guy · Aug 16, 2023

If it is in as much as the diameter of the shaft it is in far enough to be fine. Alignment is more important than depth in this case.

Smiles79 · Aug 16, 2023

That's good to hear, thanks!

Smiles79 · Aug 16, 2023

If the shaft isn't bottomed out in the hub, what's going to keep it from moving towards the thing while it's running, causing the coupler to contact the radiator? I'm using a love joy coupler.

Hdonly · Aug 16, 2023

Lovejoy coupler is not the best way to couple the pump.

Smiles79 · Aug 16, 2023

Why is that?

Hdonly · Aug 16, 2023

(quoted from post at 08:52:31 08/16/23)
Why is that?

If there is any appreciable movement in and out between the drive end and the pump end it tends to destroy the rubber coupling. Just my experience in other applications. I have never seen them used in driving a front mount pump on a tractor. JUst sharing my opinion. Others here may not agree with me.

This post was edited by Hdonly on 08/16/2023 at 07:59 am.

TO20 Front Pump Installation

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