Serial Location: On plate inside engine compartment and on right-front of transmission.
So, as an example, looks like 1987 would run from C763228 to BB31776
After looks at the number, the tractor looks like a 1984. In the book it say to use Ford M-2C41A oil for power steering fluid, haven't had much luck finding any, anyone know what other type that can be used or near the same type?
M-2C241-A has been superseded by The Ford/New Holland M2C134D specification, which is a Universal Tractor Transmission/Hydraulic Fluid (UTF) specification. Look for a UTF that says on the label that it meets or exceeds the M2C134D spec (some might just say 134D). The one from New Holland is kind of expensive, up around $70.00 per 5 gallon bucket the last time I checked, but Tractor Supply carries on called "Travelers Premium Universal Tractor Trans/Hyd. Fluid" that is usually around $32.00 to $35.00 per 5 gallon bucket.
Can I also use this for the tranny and rear end (hydraulics)? After using the tractor, steering to left is very hard. It ran our 268 baler better than our gas 3000.
Yes, M2C134D has superseded the recommended specs for all of the fluids in that tractor except for the motor oil. Use it in the transmission, rear end/hydraulics and power steering. I'm not 100% sure, but I think that the 6610 has a common sump for the transmission and rear end/hydraulics, although there's probably 2 drain plugs.
I would hope so. A 3000 only has about 37 hp at the PTO, and the 6610 has almost double that at 72. If the 3000 could run it then the 6610 probably doesn't even notice it.
Current New Holland part number for the power steering filter is 84536381. That crosses to a Wix 51323, NAPA 1323.
If it turns good in one direction and only turns hard in the other then it shouldn't be the filter. The filter is on the return side of the hydraulic circuit, after the work has been done, so if it were clogged bad enough to affect the steering, it should be equally hard in both directions. It looks like there were a couple of different power steering setups for the 6610. Does yours have the external cylinder sideways under the nose of the tractor, or does it have all of the hydraulics internal to the steering column with a single steering arm on the left side? In either case, the problem is likely inside the steering column. It's just best to know which system you have and have the appropriate section in the service manual ready before you start tearing into it.
I'm assuming you don't know what the new-to-you tractor has for fluid. I'd start by flushing the power steering system and go with a known new fluid. For one thing, you would gain the knowledge of what you then have for viscosity.
I believe a higher viscosity (high number = thicker) is what I'd would try for. An example, which I believe to be true, is the spec. Trans/Hydraulic fluid (which you probably already own for use in the hydraulic & transmission) is a higher viscosity than a ATF type "F" which I understand you have used in another tractor, your 3000.
Disclaimer--but what do I know. Others can you give you "been there, done it" experience.
After a month of using this tractor my quick questions:
When shifting gears, what is the gear pattern? We found some forward gears (1st & 3rd I'm guessing) and a reverse gear (R1). We though we found some more gears but couldn't tell.
If you're talking about the "U" shaped piece you have circled in the drawing, that's the race for the ball bearings to ride in. Apparently that part was never sold separately and has no individual part number, and is only included when you buy the entire steering shaft assembly, which was originally part number E0NN3A710BB or E0NN3A710BC depending on which steering column it has based on whether it left the factory with a cab or not.
E0NN3A710BB was the part number for the steering column on 6610's that had a cab, and that part number has been superseded by part number 83927287, but neither the original or superseded part number are available any longer.
E0NN3A710BC is the part number for 6610's that didn't have a cab, and that part number was never superseded, but it looks to be no longer available either.
Your best bet is to use the original part number for the steering shaft and call around to salvage yards. There are none listed in any of the search sites that normally use, but that doesn't mean that there are none out there.
You may want to expand your search at the salvage yards to the entire steering gear (steering column) assembly. There are 3 different part numbers for the entire steering gear assembly, which includes the steering shaft and that race:
E1NN3N503EB - Steering gear with cab and with shifter on column (superseded by part number 83934944)
E1NN3N503CD - Steering gear with cab without shifter on column (superseded by part number 83957986
E1NN3N503EE - Steering gear without cab (superseded by part number 83954734)
I did find one of the entire streering gear assemblies at one of the salvage search sites that I use:
I have already called up a few salvage yards, most are way too far. E1NN3N503EE would be ours. I have been trying to see if someone could make the part.
We are seeing if the part could be fixed (been waiting for a month)... Over last weekend when we were doing a power steering job on the 3000 and it looks like that part we are looking for on our 6610 is the same as the 3000. So we might take it off this weekend and see if it fits. Wouldn't have time this week.
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