Wide angle pto orientation?

Kidds

Member
Horticulture
Does it matter which way around it goes?
For some reason I can’t get it to latch with the heavy end on the machine so ran it tother way. Apart from being heavy to put on is there a reason why not?
 

Kidds

Member
Horticulture
:scratchhead: I thought the wide angled joint was only on 1 end of the shaft, so putting it on the machine end is a waste of time as there's hardly any movement at that end of the shaft anyway, whereas at the tractor end there is sharp angles from the pivot point of the drawbar/hitch.
I don't know, that's why I am asking.
The machine is held on a 9 hole drawbar that fits on the lift arms so the pivot point is much further back from the drawbar if that makes any difference.
I inherited the job of driving it and the pto has always had the heavy end at the machine end. Got a new shaft and it won't latch that way round, can't figure out why but maybe it's not supposed to go on that end.
 

sawdust

Member
Location
Argyll
I don't know, that's why I am asking.
The machine is held on a 9 hole drawbar that fits on the lift arms so the pivot point is much further back from the drawbar if that makes any difference.
I inherited the job of driving it and the pto has always had the heavy end at the machine end. Got a new shaft and it won't latch that way round, can't figure out why but maybe it's not supposed to go on that end.
Heavy end (wide angled end) should always be at the tractor (y) unless your getting mixed up with a heavy plated slip clutch
that end should always be on the machine (y)
 
Had the same query yesterday on a small baler on 9 hole bar as had to replace part in winter and could not work out which way round. Wide angle one end and over run on the other. Put wide angle at tractor and the over run would not work, swapped around and was all good.
 

Dave W

Member
Location
chesterfield
The crucial bit is where the pivot point is in relation to the 2 pto stubs.
On a muck spreader for example the pivot is virtually under the front pto so that’s where the wide angle should be.
Sounds like your sprayer is a non conventional setup so without pics we don’t know. However the wide angle should go on the end closest to the pivot between machine and tractor regardless of how it’s hitched.
 

Kidds

Member
Horticulture
See which is the sharpest angle when turning and uss the wide angle end there
I think I am just going to have to have the heavy end at the tractor because it won't latch onto the other end. Slides on OK and seems to go far enough but not latching.
It has one of those pull collars that releases 3 small ball bearings inside that fall back into the groove on the shaft, they don't. That's what I mean by not latching.

It has fallen off once and by some miracle nothing bad happened. I thought it was on properly but obviously not. Won't risk that again and no idea how I got away with it. PTO guard in good order, the safety chain held it and shaft just ran inside the guard. Not the sort of luck I usually have.
 

Kidds

Member
Horticulture
The crucial bit is where the pivot point is in relation to the 2 pto stubs.
On a muck spreader for example the pivot is virtually under the front pto so that’s where the wide angle should be.
Sounds like your sprayer is a non conventional setup so without pics we don’t know. However the wide angle should go on the end closest to the pivot between machine and tractor regardless of how it’s hitched.
Pretty standard setup with trailed orchard sprayers, neither pic is mine but very similar.
Hitch goes on 9 hole drawbar.

168663-10405115.jpg
a96076.jpg
 

Dave W

Member
Location
chesterfield
Pretty standard setup with trailed orchard sprayers, neither pic is mine but very similar.
Hitch goes on 9 hole drawbar.

168663-10405115.jpg
a96076.jpg
If the setup is the same as as the machine pictured then I’d suggest the pivot will be about in the middle. In which case a wide angle won’t really make any difference. You could just use a standard shaft
 

Kidds

Member
Horticulture
If the setup is the same as as the machine pictured then I’d suggest the pivot will be about in the middle. In which case a wide angle won’t really make any difference. You could just use a standard shaft
Setup is same as pictured just on a modern tractor. Pivot probably is close to centre.
So I can assume it makes no difference which end it goes and probably doesn't even need one.
 

sawdust

Member
Location
Argyll
Setup is same as pictured just on a modern tractor. Pivot probably is close to centre.
So I can assume it makes no difference which end it goes and probably doesn't even need one.
Was the replacement joint like for like? or is it different? maybe the stub shaft on the sprayer only has a locking grove in 1 certain place rather than cut all the way round.
 

Kidds

Member
Horticulture
Was the replacement joint like for like? or is it different? maybe the stub shaft on the sprayer only has a locking grove in 1 certain place rather than cut all the way round.
Looks the same to me and shaft on machine is grooved all round. Visually I can't see why it doesn't latch but it's OK the other way around. Latch on other end is standard push pin.

Is there a reason it’s on 9 hole rather than normal drawbar?
Probably to get the pivot point further back. These things are designed for sharp turning at end of apple rows.
 

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