960 steering seal

Lynn Patrick

Well-known Member
All of a sudden my 1957 960 narrow front has started major leaking from the steering sector, running out at the bottom of the pedestal. I think the seal is part #NCB-3215-A, but I can't find it anywhere.
Also, what else should I be looking for being worn?
As always, thanks for any help!
 
does it have anything other than the normal rowcrop manual box with single sector arm?

there's no hyds to that box.. so the leak can only be the lube in the box.
 
Correct. There is nothing else there, even the power steering has been removed by some PO. It has to be that steering box.
 
#NCB-3215-A , according to my hand written notes on the inside cover of my rowcrop manual, is the seal for the spindle in the single piece front pedistal. and unfortunately. I also have written next to it that it was NLA last time I worked on my 950!

The sector arm seal for them rowcrop boxes SHOULD BE ncb3591b but I believe it is now 71700c1

please verify these before you order. these are from my hand written notes from when i worked on my 950 a couple years ago. I havn't rebuilt a rowcrop steering box since then.

perhaps showcrop or rickb can verify or deny that i am giving you correct info.
 
the sector # i gave you is for the steering sector back by the operator. the sector front seal is ncb3225B and I also have that penciled as unavailable.

When i rebuild my 950 front pedistal i had to rig the seals using thick stall matting rubber and a custom cut washer .. and then pumped full of grease.

I have HEARD that someone might have crossed seal numbers for the single piece front sector.. but I have not found them.

I also had to do extensive welding and farm machining on my wore slap azz out front pedistal.. so I'm currently looking for a good single piece front pedistal for it or a dual piece front pedistal. right now i farmengineered it good enough to mow.. but i won't road it.. it can wander a bit. :)
 
the box by the operator is easy.. easier than a ag box.

the front pedistal.. good luck on finding seals!

check the bearings too!

my 950 front pedistal is a time bomb.. :) i mow with it.. but i know one day the front spindle is just gonna drop out of it. :) i've booger-fixed it as well as it can be done without finding salvage parts in better condition than mine.
 
Thanks Soundguy. Guess I'll have to tear into it & hope someone can cross reference the seal!
By the way, I've never heard of the term "booger fit" before but yet I know just what you mean!
 
If you disassemble it all you need to know is the ID of the bore the seal fits into,the OD of the shaft it seals and the thickness of the seal. You can use those 3 measurements to find any seal.
 
texes is of course correct. generally you can cross a seal with id, od and thickness. and in fact. i THINK someone here did just that and posted seal numbers since oem sels were NLA>

I have only very rarely run into a situation where i could not cross a seal that way.. and it was some weirdo mower box seal.. top seal at that..

as for the booger fix job. well.. :) what can i say. when you have badly worn parts and no replacements. then welder and grinder start looking ok.. :)
 
Soundguy is correct! In the archives look up "Pop! gear lube leaking from pedestal." Later I posted the part numbers of the bearings and seals I used to repair my pedestal in my 961 when it gave way. I hope that will help you.

Larry Wallace
 
23710 Small Bore Seal. I did the search. Anyway, IF the pedestal on your 960 is the same as my 1959 961 then this may be a suitable substitute for you. Mine is still holding well.

Please post back if this works for you. If the one on Soundguy's machine goes out then this will help him too.

Again, I hope this helps you.

Larry Wallace.
 
Lynn,

I forgot that there is an early model pedestal and a later model pedestal. The seal part number I gave you will be for a later model pedestal. Therefore, machines prior to serial number 110986 will be the early model. Serial number 110986 and after will the later model.

If you have a later model pedestal then the seal part number may work for you. A thought may be to go to the nearest NAPA Auto Parts and ask them to cross reference that number to their SKF brand of seals.

To answer your question as to what else to look for. My book states this:

"Inspect the pedestal housing for cracks, distortion, or other serious defects.

Inspect the bearings, bearing cups, and seals for cracks or serious galling.

Inspect the gears for cracks or missing teeth.

Inspect all bolts holes for elongation or cracks.

Inspect the bushings for scoring or wear."

Speaking of "wear" I am going to shut up so I don't wear you out with my repeated posting.

LW
 
WOW! Thanks for all the info! Mine is a 1957 serial 141771, so I guess that means the later seal. Will call the local Barron's first to see if they can cross ref it. If not, there are several other name stores not too far off.
Thanks again!
 
Will do, but it may not be right away. I have a granddaughter's HS graduation, a 4 day annual Church Conference, and another granddaughter's wedding (out of state), plus who knows what coming up in the next 3 weeks! I'll let you know when I get it done - or before if I need more advice!
Thanks again.
 
Went to the local Barron's - they don't have it, but had the number for National/Timken - #412119. So came home & just got it torn apart. The NCB-3215-A is the dust seal at the very bottom. Is the #23710/412119 the dust seal or the oil seal? O'Reilly's said they have 3 seals by that Nat/Tim #, so I need to take the old one in. If it's the dust seal there isn't enough left to measure!
I hate to think I'm starting all over again finding the seal!!
 

SouNdguy referenced one piece vs. two piece pedestal The XX1s have the two piece and the XX0s have the one piece. So your 960 would be the single piece which would be different from Larry's two piece.
 

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