Brakes 990

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Lovejoy922
Posts: 3
Joined: Fri Apr 06, 2018 11:34 pm
Location: Us

Brakes 990

Post by Lovejoy922 » Sat Jun 01, 2019 1:18 am

My 990 brakes dont work took apart has a light oil on them I need a place to get the seal and a part number this is my 1st time doing brakes on a David brown.

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ollek
Posts: 3820
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

Re: Brakes 990

Post by ollek » Sat Jun 01, 2019 5:41 am

The oil can come from the wheel reductions (the seal behind the brake drum) or from the rear axle. The following two links shows the parts and seals for both locations. https://partstore.caseih.com/us/parts-s ... 6ar1286705 https://partstore.caseih.com/us/parts-s ... 6ar1305679

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cobbadog
Posts: 613
Joined: Tue Oct 11, 2011 6:18 am
Location: beautiful Coopernook NSW. near Taree. NSW. Australia

Re: Brakes 990

Post by cobbadog » Sat Jun 01, 2019 6:36 am

My local bearing shop had all the seals in stock. I took the seals to him and he read the numbers and put new ones on the counter. When I did my brakes It was suggested to me here on this site to double up on the seals that sit on the main axle shaft coming out from the diff. This meant not re-fitting the keeper that was in there. I also used a pair of 'speedy seals' on the axle to ensure a perfect seal.

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ollek
Posts: 3820
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

Re: Brakes 990

Post by ollek » Sat Jun 01, 2019 7:07 am

Cobbedog, a 990 have 2 seals per side in the rear axle from the start, please see the link I have provided. Please do not compere your 30C with later tractors, it can result in false conclusions by the OP.

Lovejoy922
Posts: 3
Joined: Fri Apr 06, 2018 11:34 pm
Location: Us

Re: Brakes 990

Post by Lovejoy922 » Sat Jun 01, 2019 9:03 am

Thank you all 4 the responses I think this info will get me fixed up.

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db2d
Posts: 2098
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: Brakes 990

Post by db2d » Sat Jun 01, 2019 10:50 am

The diff lock pedal should have been secured in the engaged position prior to removing the right hand reduction unit. If this procedure has not been done the diff lock sleeve will drop out of the selector.

Lovejoy922
Posts: 3
Joined: Fri Apr 06, 2018 11:34 pm
Location: Us

Re: Brakes 990

Post by Lovejoy922 » Sat Jun 01, 2019 1:14 pm

I wondered why this needed done now it makes sense thank you for info.

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