driveline length

[jube newbe]

Ok new to the tractor world.

I just got my Ford Jubilee runing and it's now field ready. Borrowed a kingkutter rotary mower from a buddy, got the lift arms attached and went to engage the driveline onto the pto and its around 2 inches too long! Am I doing something wrong or do these things come with different length driveline?

My buddy was running his on a big old Farmall.

Thanks in advance

 

[KennyV]

Yes there can be a difference...
If you can cut shafts enough to work on yours and not be too short for his you will be OK.
But when cutting take an equal amount off the male and female parts of it, also consider that you will most likely need to be shorter still when you have it raised. KennyV

 

[kthompson]

Ok new to the tractor world.

I just got my Ford Jubilee runing and it's now field ready. Borrowed a kingkutter rotary mower from a buddy, got the lift arms attached and went to engage the driveline onto the pto and its around 2 inches too long! Am I doing something wrong or do these things come with different length driveline?

My buddy was running his on a big old Farmall.

Thanks in advance

By chance do you have a converter or extender shaft on your PTO shaft? You were fortunate to find this before doing any damage probably to your tractor. Are you sure the shaft is fully collapsing together?

 

[jube newbe]

Thanks for the input guys.

Kthompson yes there is a sleave ontop of the pto shaft which I was guessing to make it the correct diameter as well as making the pto shaft longer?

There is no give in the driveline, it should be telescoping right? Maybe I should take the plastic covering off the drivelink and see whats going on.

As it is the driveline is rigid and length wise just about touching the pto shaft housing.

 

[beersngars]

Yep..take the cover/sheild off and see what's going on. You may have to grease it up,

 

[jube newbe]

Ok still to long.
Because it's my buddies I dont want to cut it short so it wont fit his tractor, so I was thinking of buying a new 'shaft' I think its called, The square rod with yokes either end. Tractor supply have such assemblies but are differentiated by numbered series. how does the series work and is what Im planning possible?

 

[Bird]

Yep, first step is definitely to get it to telescoping. It should slide back and forth to lengthen and shorten easily.

 

[chazzy]

Man, you are lucky to check this forum before you used it !!!

Either too short or too long can create some SERIOUS damage... don't ask how I know!

The way to measure the correct driveline length is to find the shortest distance between your tractor PTO shaft and the input shaft of the implement. That will be the length of the inner and outer tube of the telescoping driveline.

 

[jube newbe]

Gents

Thanks for the input!

I took it to bits last night and soaked the shaft 'telescope' in PB blaster. A few re-applications and several smacks with the hammer loosened the thing right up. It will now fit.

My concerns now are how it can cause damage if it is too long/short. Re chazzy. Im not saying it wont I just dont understand how.

The collapsed length is 19 3/4 inches (excluding yokes) and the gap from pto shaft and mower gearbox is 35 so adding the yokes length, it should only be extended 3 or 4 inches.

Sound about right or might I break something?

Thanks again for the input, I might even get some mowing done this weekend

 

[Bird]

If it's too long and you drive through a dip or low spot so the back wheels of the tractor go down and the rear wheel on the mower is higher, the driveshaft telescopes shorter; i.e., partially collapses. Or if you raise the 3-point to lift the rotary cutter, the driveshaft partially collapses. If it's too short and reaches the limits of its travel in either situation, something has to give. The least that can happen is to bend the driveshaft.

If it's too short and you drive over a hump or over a ridge, so the front wheels of the tractor go lower, that will telescope the driveshaft longer; i.e., pulls it out, and if it reaches its limit, the two pieces come apart and then you'll have both pieces floppig all over the place. In such a situation, stay on the tractor seat, disengage the PTO, and sit there listening to the noise until everything quits moving. You cannot and should not try to stop it with your hands.