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Harry Ferguson Tractors Discussion Forum
Show Parts for Model:

rear axle fluid change?

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Z-man

09-18-2013 19:15:19
67.234.19.42



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I have a TO30 and the rear axle has tanish brown looking fluid in it, I believe it has water in the rear axle, but i'm not sure what type of fluid and were to fill it. I would guess the drain plug is on the bottom can anyone tell me what type fluid it takes Plz n thanks




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gshadel

09-20-2013 09:39:04
74.218.18.162



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 Re: rear axle fluid change? in reply to Z-man, 09-18-2013 19:15:19  
Z-man you are looking for GL-1 mineral oil, which is a type of gear oil, but do not use GL-5 or GL-7 gear oil. As far as gear oil goes only GL-1 is rated for your transmission. OR, you can safely use motor oil, like 10W30, 10W40, 15W40. Those are all safe and effective in your tranny also. They provide the added benefit of allowing your hydraulic 3 point hitch work smoother at low temps where the GL-1 is not a multi-grade oil and is thicker when cold causing sluggish 3 point lift action. GL-1 can be difficult to find depending on where you live. I use 15W40 myself and have been quite happy with it for many years now.

GEorge

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Bob (Aust)

09-19-2013 20:38:47
139.130.185.42



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 Re: rear axle fluid change? in reply to Z-man, 09-18-2013 19:15:19  
Z-Man. The manufacturer's recommended mineral oil is GL-1. I am not familiar with GL-1 as we don't use that term in Australia.

An interpretation of GL oil grades is [URL=http://www.lubrizol.com/DrivelineAdditives/AutomotiveGearOil/GL5.html]HERE[/URL]

[quote:654855c8b8]ĽAPI Category GL-1 (inactive*) designates the type of service characteristic of manual transmissions operating under such mild conditions of low unit pressures and minimum sliding velocities, that untreated oil may be used satisfactorily. Oxidation and rust inhibitors, defoamers and pour depressants may be used to improve the characteristics of lubricants intended for this service. Friction modifiers and extreme pressure additives shall not be used.[/quote:654855c8b8]

If price is not a consideration, use a normal multi grade engine oil, maybe 10 - 30 if you are in a cold area, 20 - 40 or similar in normal climates.

[quote:654855c8b8]Sam do u mean 15w30 motor oil or what should I be looking for?[/quote:654855c8b8]

15w30 is fine for your Ferguson transmission.

Don't use heavy gear oil or hydraulic oil. The latter in particular, will damage your transmission.

The gear box, hydraulic pump and differential are all combined in and use the same oil, eight gallons from memory?

Bob in Oz

'53 TEA20
This post was edited by Bob (Aust) at 20:42:51 09/19/13 4 times.

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fergienewbee

09-19-2013 06:28:39
99.119.131.53



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 Re: rear axle fluid change? in reply to Z-man, 09-18-2013 19:15:19  
Just bought a 5-gallon pail of GL-1 at NAPA. Call around. Retail store attached to distribution center wanted $65.00 plus tax. Bought it at a NAPA closer to home for $54.61 tax included.

Larry



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Z-man

09-19-2013 20:04:24
67.234.19.42



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 Re: rear axle fluid change? in reply to fergienewbee, 09-19-2013 06:28:39  
GL-1 can I assume that means gear Lube? or is it motor oil?



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Bob (Aust)

09-19-2013 03:07:24
58.164.144.210



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 Re: rear axle fluid change? in reply to Z-man, 09-18-2013 19:15:19  
Yes, been awhile since I was under the old girl! :D
Z-Man, the honey colour oil is due to water. Water leaks in around the gear lever (transmission shifter???) and at the spring behind the seat.

You should install a rubber boot on the gear lever - see my photo above - and cover the back of the tractor to keep out rain.

Bob in Oz
This post was edited by Bob (Aust) at 03:08:55 09/19/13 2 times.

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samn40

09-18-2013 23:45:03
81.132.74.156



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 Re: rear axle fluid change? in reply to Z-man, 09-18-2013 19:15:19  
3 drain bungs,Bob, and they all resemble the filler bung. Takes a bit of time to fill the oil back in as there is a very small hole between the gearbox and transmission to let the oil through.15W30 oil is good for my tractor and will work in yours also. Sam



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Z-man

09-19-2013 20:05:53
67.234.19.42



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 Re: rear axle fluid change? in reply to samn40, 09-18-2013 23:45:03  
Sam do u mean 15w30 motor oil or what should I be looking for?



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Bob (Aust)

09-18-2013 23:27:01
139.130.185.42



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 Re: rear axle fluid change? in reply to Z-man, 09-18-2013 19:15:19  
Transmission oil, probably the most discussed topic on this forum!!! :)

It takes GL1 but most of us use multi grade engine oil. I think there is SAE 20/40 in my transmission, although you may wish to use 10/20 if in a cold winter area.

Do NOT use gear oil or hydraulic oil.

At least two drain plugs (may be three, memory failing???) and one filling plug on the top of the transmission, in this photo above the gear lever:

[URL=http://smg.photobucket.com/user/Woomera/media/Ferguson%20Tractor/DSCN1116Small.jpg.html][/URL]

Warm up the tractor and transmission, open the drain plugs and give it plenty of time to drain.

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Z-man

09-19-2013 20:01:31
67.234.19.42



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 Re: rear axle fluid change? in reply to Bob (Aust), 09-18-2013 23:27:01  
Bob, what your saying is to use 15-30 motor oil or is there some other type of oil that u mean?



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