Where's the hydraulic dipstick?

matonanjin

New User
Yes, incredibly dumb question but I can't find the dipstick, or the fill opening on my Ford Tractor.:oops: For the hydraulics that is.

I have a tractor that my dad always referred to as the "641". But the manual that I have for it is for a "Model NAA". It is one of those.

I find a dipstick just in front of the PTO engage lever. But it would seem that is for the rear end gear box. The manual shows that there is a place to add hydraulic oil right in front of the seat frame and slightly to the left. I don't find that either.

Any help or direction is appreciated.[/img]
 
You are in the right place, that dip stick is for the center compartment, (hydraulics) there should be writing on it to prompt you to check the fluid level with all cylinders extended, if nothing else on the tractor, then just raise the lift arms all the way up when running, then check the fluid level. Just above that is a hexagonal threaded cap, that is the filler opening. The transmission and rear axle differential have the same thing for filling, but you check the level by removing the fluid level, square head plugs on the side of each respective housing. The tractor has 3 seperate housings, trans, hydraulics and differential.
 
You can check on the flat just aft of the starter for the model
number so you know for sure what it is.
As a quick check, an NAA would have a large nut on the end
of the rear axles like an 8N. 6xx would not have that nut.

30000.jpg
 
Billy NY, Sean in PA & Royce, thanks for your responses. It looks like I have found a great source of help as I clean up this tractor, get it running and ready for winter. Billy, I did figure out the different compartments and measuring spots. They're all empty!:(

I will look for that place for the model number. I haven't gone out yet, Royce, but that hint on rear axle will be a quick check, thanks.

I will be bugging you guys a lot more! :lol: :x
 
Wow, but at least you know whats what now and hopefully its not been run like that, sure would have to make some noise to tip you off though, make you shut it off, strange all are empty, wonder what happened there. By all means post back and keep asking questions as you progress along.
 
Here is the photo. (sorry about the duplicate post.)

So not an NAA. The serial number I got is 310905. I'm having difficulty matching up with list on this site. But I haven't pursued it rigorously yet.
30219.jpg
 
That's not an NAA axle for sure.
Just aft of your starter there should be a flat spot.
On it should be the model number, something like 640 or 641.
Could be 650 or 660 etc if you have a 5 speed transmission.
Just under the model should be another line of digits.
That line is the serial number.

This picture is from John Smith's website here.

800serialloc.jpg
 
Royce,

Thank you. Although I had to Google "aft" to figure out what that meant! :wink:

I did find a flat area and it has a serial number but no model number. I need to clean it off some more but it looks like a 6 digit serial number starting with a 3.

That link is hugely helpful in identifying a model. I need to study it some more. The one thing I don't find is a mention of a 3 speed overdrive my tractor has. I think my dad used to call it a "sherman" overdrive. I don't know why he called it that. It is right in front of the clutch. And I'm not sure how diagnostic that is.

Thanks again.
 
Sounds like it has a Sherman Combo Auxiliary Transmission. Sherman made a few different aux trans at different times for Ford tractors, step-up, step-down, a reverser, and a combo that had both step-up and step-down, and at some point Ford started offering them as an option, first as a dealer installed option, and later as a factory installed option. They were all made to sit in front of the main transmission and worked by changing the speed (or direction) of the input shaft to the main trans. The combination auxiliary trans has three settings, step-down, step-up, and pass-through. When it is in step-up or step-down mode, it also speeds up or slows down the PTO since the PTO is driven by the main transmission. In pass-through mode the tractor works the same as it would if it didn't have the Sherman.

If yours came form the factory with the Sherman aux trans installed, the model number, when you find it, will be 641-S.
 
Thanks, Sean. That's exactly what mine is. It sits in front of the tranny and is step up and step down and direct. So it is looking increasingly like what I have is, in fact, a 641.
 
(quoted from post at 16:47:03 11/20/15)
Looks like XX1 orange red as opposed to X00 vermillion.

showcrop, I don't understand. I speak a few languages but not what you are speaking there :roll: :wink:
 
(quoted from post at 16:57:34 11/20/15)
(quoted from post at 16:47:03 11/20/15)
Looks like XX1 orange red as opposed to X00 vermillion.

showcrop, I don't understand. I speak a few languages but not what you are speaking there :roll: :wink:

Just sayin' if you think that it is a 641 (XX1) the paint looks like the orange red that they used on the later Fords as opposed to the Vermillion used on Ns Jubes and 640s. (XX0) XX1 is a way to note the series as opposed to model.
 

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