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Harry Ferguson Tractors Discussion Forum

TO-30 rear wheel seal replacement

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Jim Gorter

04-02-2008 12:20:56

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My TO30 is leaking oil out of the brake drums. I believe I need to replace the seals and probably the brake shoes. How big a job is this and are replacement shoes available or do I need to have the old ones relined. Seals still available? Thanks for the help, Jim.

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Jim Gorter

04-03-2008 09:33:27

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Re: TO-30 rear wheel seal replacement in reply to Jim Gorter, 04-02-2008 12:20:56

Thanks for the tips. When I pull the axles, do I first need to drain the trans lube? Jim.

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Don Hooks*

04-03-2008 15:45:42

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Re: TO-30 rear wheel seal replacement in reply to Jim Gorter, 04-03-2008 09:33:27

If the fluid is clean you should either drain a couple of gallons out or raise the rearend until some of the oil flows to the transmission. If it is gummed up or has water in it - well, you know the drill.

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Don Hooks*

04-02-2008 22:51:57

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Re: TO-30 rear wheel seal replacement in reply to Jim Gorter, 04-02-2008 12:20:56

The shoes are available new or, if you have a clutch and brake rebuilder nearby, you might save a few bucks getting them relined. I think the SureSeals only work on the TO 20s but the collar and seal job is not very difficult if you follow the shop manual. There are two seals on each axle: one in the end of the trumpet (the easy one) and one held in place on the outer axle end by an interference-fit collar that must be drilled and chisled to remove and heated and driven home to replace. Check the surfaces the seals run against and polish any roughness away with emery cloth. If the surfaces are worn very much, you may have to have them built up and machined. The economy fix (at least for the trumpet seal) is to drive the seal to a different depth so it will run on a smooth surface. As for the brakes, be sure to "burn them in" or your stopping power will be compromised.

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glenmorebuckman

04-03-2008 01:31:22

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Re: TO-30 rear wheel seal replacement in reply to Don Hooks*, 04-02-2008 22:51:57

What do you mean by Burn them in?

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Don Hooks*

04-04-2008 07:45:24

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Re: TO-30 rear wheel seal replacement in reply to glenmorebuckman, 04-03-2008 01:31:22

Finally found my manual:

Page 146:
"When new linings are installed, it is necessary that the linings be "burned-in" to insure maximum braking performance and longer braking life. To "burn-in" new linings, proceed as follows:
1. Jack up both rear wheels.
2. Start the tractor engine, shift into second gear and lock one wheel with the turning brake.
3. As the opposite wheel rotates, partially apply its turning brake and continue this procedure until the brake drum is too warm to touch. Repeat this procedure to "burn-in" the opposite brake.
4. Let the brake drums cool and make final adjustments..."

"Too warm to touch" is subjective but it is probably between 150 F and 200 F. I hope this answers your question.

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glenmorebuckman

04-04-2008 19:26:29

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Re: TO-30 rear wheel seal replacement in reply to Don Hooks*, 04-04-2008 07:45:24

Thanks Don, I never did know that and will give it a try when I change mine!

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Don Hooks*

04-03-2008 15:41:22

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Re: TO-30 rear wheel seal replacement in reply to glenmorebuckman, 04-03-2008 01:31:22

The shop manual suggests you jack your rear wheels clear of the ground and run the tractor in gear for several minutes with partial pressure on the individual wheel brake pedals until the drum gets very hot. I will find my manual and send you their specific info later tonight. I found that I didn't have "good" brakes when I put new shoes on and I adjusted and adjusted and they worked but wouldn't slide the tires in soft dirt (as I found out driving down a new 20% slope - white knuckle time). Heating them up seemed to harden the pedal and improve the stopping force. It may not be as important with newer liner material but I had mine relined by a guy that uses the same material for truck shoes and it felt good but didn't stop well until heated up.

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Mark from the fort

04-02-2008 18:28:31

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Re: TO-30 rear wheel seal replacement in reply to Jim Gorter, 04-02-2008 12:20:56

If the pads are wet with oil, toss em out.
I think you can purchase an item known as "Sure-seals" which are new seals that go on OVER the old leaky seals.
Search this ferguson archive and type in Sure-seals or Sur-seal? there are many articles and some nice photo instructions.
Mark

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vinnywv

04-02-2008 13:01:17

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Re: TO-30 rear wheel seal replacement in reply to Jim Gorter, 04-02-2008 12:20:56

i am not sure of the extent of the job but on this site the brake shoe set is 53.78 plus shipping and they have a rear axle seal and collar kit for 28.50 plus shipping. its under the tractor parts, under the market place. sorry no help on the job of doing it. someone else is sure to know though...

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