M110 left rear wheel locked on cold start up

Dr.t said:

When starting my m110 first time in the day the left rear wheel brake locks up.
The left wheel brake pedal has no give but the right wheel pedal is normal. If I push down the right pedal the left wheel brake releases. By moving the tractor forward and reverse several times and applying the left wheel releases and the left wheel brake pedal works as it should. Does any one know what might be causing this problem? It seams to have started as the weather cooled below 0C (32F)

Click to expand...

Follow the linkage and see if somehow moisture (freezing) is binding it somehow. When you place pressure on the right pedal - it must twist enough to unbind the left. Squirting some WD-40 on it may help get some of that moisture out away from it too.

I could give you more exact answers if I knew the specific model as there is 4 different models and the are all equipped a little differently.

First that has a closed wet clutch break system, little different than a standard tractor, think car style brake system, but it has two master cylinders and that fluid does not get into the tractors hydraulic system.

Possible causes of your problems are a malfunctioning/ damaged brake cylinder, malfunctioning / damaged master cylinder, Bad/warped/ sticking brake disks, or most likely there is water in the system.
A aspects of the system needs to be addressed soon as damage gets costly.
Fully draining and bleeding the brake system would be my first choice, it will remove water and contaminates.

You will have to get the WSM to get the entire procedure or take it to a dealer.

Its too complicated and to just throw out suggestions on repairs to this system as you or someone elses very life might depend on it being repaired properly!