* TEF-20 Brakes

Posted on February 21st, 2011 by ploughmyfield. Filed under News.


It was my birthday on Saturday and so I was allowed a pass out for the day by my good lady wife to tinker with my tractor to my hearts content, unfortunatly the 3 inches of snow we awoke to on Saturday morning put pay to my plans.

I did manage to get out on Sunday for a couple of hours. The main aim of the day was 1. swap the wheels onto the 48inch centre settings to see if the tractor would go into the garage any easier and 2. investigate the brakes of my TEF-20 something I have to confess I haven’t ever touched since owning the tractor some 6 years ago.

Things all went well.

I initially used the Ferguson tractor Jack to remove the back wheels. unmelted snow from the day before is still visible on the ground.

One Wheel Off

I started by looking at the right hand brake. the one I thought I would have a problem with. I have seen Hydraulic oil dripping down the wheel centre when the tractor has been parked in the garage for a while. A sure sign that the seals on the trumpet housing are leaking. So I wasn’t expecting what I actually found.

Right Brake Drum

Both brake drums where covered in oil. These are the later Floating Cam type of brakes.

Floating Cam Brake Parts

Rear Axle Parts

On closer inspection something didn’t look right. there was a great chunk of gasket material hanging down inside the unit.

Right Brake Gasket

Righ Brake Gasket Other Shot

What a botch job by a previous owner.

There wasn’t much more I could do at this point. I didn’t have the time or space or parts to fix the problem. This is a job for a warm summers weekend I think. I did check the adjustment of the brakes and all was working fine.

Both Wheels Off

So just enough time to take the other wheel off. A note here the modern trolley jack under the tractor was just in case and took no weight.

The other side was dry as a bone. I opened it up a little and all seemed well. I know this side of the tractor is stopping well.

Left Brake OK

So finally to swap the rims and centres around and put her back in the garage. After all that there is a little more room in the garage as a result. I can’t wait to get new 11.2 x 28″ types on the back once the rims have been painted in the summer.

Wheels Back On

48 inch Wheel Setting

So a shopping list for the summer.

A. Brake lining kit.

B. 2 x item 29. pinion Adjuster from the brake parts diagram both are a bit worn

C. In the instructions on refitting the brakes it says replace items 9, 7 & 27 the springs. Does anyone do this?

D. I’m hoping it is item 2 gasket housing outer from the rear axle housing part list that needs replacing and none of the shims as I understand they are expensive but also a set amount of shims is on each axle to allow the half shafts to float (not touch each other)

I already have the inner seals item 18 as my tractor is later than 325,000 when inner seals where added to trumpet housings. I am not going to replace the outer seals without first looking at the condition of the bearings.

Some black spray paint.

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2 Responses to “TEF-20 Brakes”

  1. llewelyn quinnell Says:

    Better job of relining brake shoes is to take the shoes and drums to brake specialist where they can reline with thicker than std to allow for drum wear and they then turn the lined shoes to match drum actual diameter giving all but 100% contact when applied.The same applies to all drum brakes and is the only way of preventing a vehicle pulling offline when brakes are applied.Also prevents that very long bedding in time.Really enjoy keeping up with your new postings on your excellent site. Good luck with the old girl. llewelyn

  2. Shane from Oz Says:

    Hi Tim, I really enjoy your site, re your leaking axle seal I hate to give you the bad news but here it is. If you have as much oil as you do on the brake backing plate and brakes overall then your axle seals are shot. Inner and outer seals require replacement and to get to the outer you need to bress the bearing and axle retainer off the axle. I am currently doing this job myself along with a new RHS axle as I broke the original after 63 years of service. You will need both inner and outer seals, cup and cone bearing (you would be mad not to change them while it’s all apart) and gaskets. I can give you Timken part numbers for bearings. Get yourself a few cans of brake cleaner and make sure you put something under the parts to be cleaned as it will remove all the gunk from the brakes but leaves a mess best to do it over a large bucket if you don’t have a parts cleaner. The items you asked about really don’t need to be replaced. As for me besides the axle I am replacing bearings on axles and differential, planetary gears inside diff, pinion gear bearings and the lower link pins since everything is apart. Sandblasting and repainting everything while it’s off so I never have to go back into the back end again fingers crossed!! I should send you a few pics.

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