4600 Power steering pump.

[Jacob59]

I want to replace the power steering pump on my 1978 Ford 4600 diesel tractor. Could someone referance the correct part number. Thanks in advance.
Jack

 

[Bern]

D6NN-3K514-B is the original number I come up with. However, this is superseded by 83918260, which should be the current number.

 

[Jacob59]

Thanks Bern. The pump I pulled off had D7NN 42.
Hard to read but it looks like it was a Pelessey brand. The cross referance # parts places are showing
E6NN3K514EA.

 

[Sean in PA]

Number on the part itself may not be the actual part number.

Those power steering pumps were used in a lot of different models with the only difference being the preset on the pressure relief valve. You can change the relief valve setting by adding or removing shims. Most after market pumps these days come preset to 1100 psi no matter what part number they claim that it is a replacement for, as that is the psi that the most number of modles used. Your 4600 uses an 1100 psi pump, so you should be fine with anyone you can find that fits. My 4000 uses an 850 psi pump so I had to play with the shims to get it correct. There are a few places that sell them with the other presets, but those are generally more expensive.

 

[Jacob59]

Thanks Sean.

 

[Texasmark1]

Since we are talking about PS pumps and all, and you guys are tuned in I have a question that will apply to the post and answer a question for me.

Owners manual on similar tractor sorta mentions Ford spec XYZ....59 I think was quoted as being 10w-30 motor oil. I have PS fluid as used in trucks,
and ATF like is used in marine power trim and tilt systems.

Got a new PS filter for my new acquisition and I am wondering what you guys use since I'll be draining the pump to install it. Does the pump vent itself,
or do you have to move the steering back and forth to vent any trapped air like hydraulic systems?

Thanks.

 

[Sean in PA]

Texasmark1 - While the power steering system can work on just about any kind of oil except ones that have additives that might be harmful to the seals, most folks here use the same UTF in the power steering that they use in the transmission, hydraulics and rear axle. That way you only need to keep two types of fluid on hand, UTF and engine oil. The ones that need oil in the fuel injection pump use the same oil as is used in the engine crankcase, and UTF everywhere else. The only exception is larger and later models that had hydraulic brakes might need special brake fluid.

Since you don't mention your exact model, all I can say is that "similar" models to the 4600 with "similar" power steering systems do not need any special bleeding. Just turn the steering wheel from full stop left to full stop right and back several times and any air should work itself out. Don't forget to check the fluid level afterward in case there was a lot of air that got displaced.

 

[Texasmark1]

Sean,

I just got my I and T manual today and the oil listed is M2C 41B the spec of which shows up on a can of JD 303 or 134 B/C, aka as you said
hydraulic/transmission oil. It did say suitable sub could be used but I have no idea what in the spec is suitable.

No Problem. I have the oil listed, got the PS filter yesterday and will do the work tomorrow.

Unit is an '88 (per the serial #) 3910 II. I wanted more than my 3000 but not as much as a 4600 I once had whose frame was larger than what was
convenient for me. This is perfect as I get a small frame with the big tractor attributes including Cat 1 or II capabilities which gives me stout lifting arms,
required to lift the mower.....weighs 1000# and hangs out to 6' to the side. Regular Cat 1 arms on my 3000 bent when lifted, but the hydraulics had the
lifting capacity....barely 3000 is rated 1700# and this newer one is 3000#.

I hooked my drum mower to it the day I got it and it is perfect. What was really bothering me is would it lift the left front tire off the ground. It doesn't
even make the front end light. Not bad with no additional weighting. Now I can do my haying without having to swap mower and baler on the same
tractor several times throughout the haying season.

 

[Texasmark1]

Sean,

Forgot something: Thanks.