B275 brakes

[Brian Allen]

Hi all
My B275 brakes are grabbing and locking solid on the R rear wheel. They unlock as soon as the tractor stops.
What do I look for when I strip the brake hub down?
Im hoping to get this side to work as good as the L side.

 

[JimB2]

Hi, with reference to the photo below, you will have to remove the right brake drum and cleanup the rollers items #6 and the grooves they run in in item #5 and lightly lube the rollers with powdered
graphite.
If the brake disks are glazed then take a wire wheel and remove the glaze. If you find transmission oil in the brake housing that indicates a seal is leaking and that is a big job to replace but removing oil
with brake cleaner will work for a time.
You will have to remove Diff lock lever and possibly part of the parking brake to have enough room to remove brake drum from pinion shaft.
Depending on the year of your B275, the later ones had the parts circled in blue.

Do you have a service manual?

See B275 Brakes Link and if you have transmission oil in the brakes then look at this link:

https://forums.yesterdaystractors.com/viewtopic.php?t=1377566&highlight=jimb2

B275 Brakes

 

[bc]

I've found that those balls #6 can get rusted up, flat spot, or wear down. Also the grooves in the center plate #5 can wallow out. They have to roll right in the grooves as the rotating plate goes from shallow keeping the disks off of the plate to deep which allows the disks to close on the plate. Seems like I had to put in new or larger balls to get my brakes to work. Wire brush the grooves and don't forget to wire brush your balls.

 

[Brian Allen]

Awesome guys!
Its nice to have an idea what is going on, before I start a job.
This tractor doesnt have a lot of hours, and as it sat outside for about the last 8 years, Im thinking rust.

 

[Brian Allen]

I forgot to mention.
Earlier model serial# indicates its a 59.
Thank you for the help!

 

[Brian Allen]

jimb2
I do have a I & T shop service manual, and an operators manual.
But, you just cant beat experience!
Thank you for your help.

 

[47fivewindow]

wire brushing balls sounds painful

 

[Brian Allen]

It brought tears to my eyes when I read it!
🤫