Adding Gear Oil To Differential

SnowStorm34 · Jul 21, 2016

Hey everyone, I have a quickie question about topping up the gear oil in my tractor's differential.

Here are a few photos. I'm looking for where I put the oil in, and where I could check the oil level.

I [i:edfcd4e105]think[/i:edfcd4e105] the oil would go in through that bolt/cap near the seat's spring. Though I'm not entirely sure.

Here's the other side. I'm guessing if I wanted to top up the transmission's oil, I'd top it up through that inlet on the side?

And the bottom.

If anyone could help point out the inlet and where to check the level it would be much appreciated.

PS I'm sorry for asking so many questions. I'm not very mechanically inclined so I don't really have any advice to give back. If anyone has any suggestions for how I could give back to the community, I'm all ears.

old · Jul 21, 2016

Well we can see it is red but there are many models and brand that are red so what tractor is it??? Not all have them in the same place so hard for us to help you help youyr self with out telling us which tractor you have

D beatty · Jul 21, 2016

From your pictures and not knowing make or model it looks like plug on side of trans. in second picture could be a fill-check plug.

SnowStorm34 · Jul 21, 2016

Sorry for not being more clear! This tractor was actually built by my Grandfather from odds and ends. The red is just Trimclad. :wink:

As far as I know, the transmission/rear axle is from an airport luggage tug so I haven't been able to find any manuals or info on it.

old · Jul 21, 2016

Do you know if the transmission and rear end use the same sump for oil or are the different from each other?? If they share then the pipe plug on the side of the transmission is your fill and check plug.

Steve@Advance · Jul 21, 2016

That is a Heinz 57 all right!

The plug in the right side view of the transmission would be the fill level.

When you had the axles out, was there oil up inside the spindle tube? Or did it come gushing out?

If the transmission and rear end are a common oil, the oil would have been way above the spindle tubes, and would have poured out unless you drained it first. Hopefully the trans is separate from the rear end. But if they are common, nothing you can do about it, just fill it to the level on the side of the trans.

The typical proper level for a rear axle is just enough to reach the bottom of the spindle tubes to supply the rear wheel bearings. Any higher and it may want to leak on the brake shoes. Look for a plug somewhere on the same level as the bottom of the spindle tubes. If you don't see a plug, try removing one of the lower axle housing bolts, (last picture) not the bottom one, but the one above it, about 4 o'clock position on the left side. If that hole goes all the way through, that would be a good level.

Jthomas1970 · Jul 22, 2016

Can't see very well, but looks like a fill plug on top, under the seat next to spring in your first picture.

showcrop · Jul 22, 2016

Like Steve says the level is usually just below the center line of the axle, so how about a couple more front views, looking under the frame?

SnowStorm34 · Jul 22, 2016

Thanks everyone for your responses, I really appreciate it.

The transmission appears to sit higher than the axle and they have separate drain plugs. I'm inclined to think they're separate, but I don't put much weight in my novice opinion.

Tonight I'll open the pipe plugs under the seat as well as on the side of the transmission. I might be able to see inside. I'll also take some more pictures.

old · Jul 22, 2016

If your changing the fluids in both you could simply remove the drain plug on the rear end and transmission then put the plug back in the transmission but not the rear end and start filling the transmission. If you start getting oil form the rear end drain plug then you know they share the same oil supply

Adding Gear Oil To Differential

SnowStorm34

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old

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D beatty

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SnowStorm34

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old

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Steve@Advance

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Jthomas1970

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showcrop

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SnowStorm34

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old

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