NAA live PTO

jbeeje

New User
I printed off an original sales brochure for the Ford NAA that has a picture of the tractor with 28 numbers pointing to various points on the tractor, and corresponding explanation of the points below the picture. Number 5 says, "Live PTO: Continuous power to PTO even when starting and stopping tractor. (Not illustrated)" What does that mean? Was there an option available that would accomplish this (live PTO) ? If so, is it something that one can still find?
 
The LPTO option was a dealer installed option on some NAAs and even a few 8Ns.
It was not a true live pto but rather was a clutch pack which replaced the splined coupler between the tranny output shaft and the pinion shaft. By means of a handle coming out of one of the round inspection covers the operator could pull it back and stop the forward movement of the tractor without interrupting the pto.
Then by pushing it forward he could again get the tractor moving.
They are not common and are much sought after.
 
JB:

An optional hydraulic clutch pack between the transmission output and the pinion gear was available for dealer installation. These have not been available for decades and parts are hard to find.

Dean
 
For the record:
This post has nothing to do with electronic ignition. It likewise has nothing to do with 50-80+ HP tractors running big hay balers, nothing to do with combine cylinders, other types of farm machinery or chromed radiator caps.
It does have to do with a 34 hp tractor that the owner likely uses for finish mowing on weekends.
Let those who use sarcasm take note.
 
What you are talking about was made by Sherman The same company that made the over drive & underdrive gear boxes that were so good in the 8n & naa & 600.
I have a NAA that has part of one still in it The clutch pack has been taken out & replaced with regular PTO shifter so it is not LIVE The plate on side of chasie is still the same but I do not have the original shifter handle. I have only talked to one person that knew anything about it & he said it wsa not all that great. It was a option sold by ford dealers & could be installed by dealer but was not a ford product
 
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