Dave from MN
Well-known Member
Start tractor, brakes lock up instantly. Still.
Disconnect return line from brake valve to return dump elbow, and routed with a hose from the brake valve to a pail. Started , brakes did not lock up. Tube from brake valve to that elbow that is screwed into top of transmission housing is NOT restricted, nor is the elbow. Fluid coming out of the valve is a almost frothy, actually looked like a 1/2 melted root beer float. I pulled the filter, filter has alot of slime on it,even some what appear to be white plastic chunks of some sort. I am now very doubtfull that that mechanic changed the fliud of filter, when he repaired an issue I had with 4th gear. So, I am apparently getting more volume to the brake valve than the brake valve can get rid of with out having enough excess volumn(very little pressure) to apply the brake piston. I am thinking I must have some thing going on with the flow divider, maybe some thing partially plugged. I plan on pulling the MCV off and inspecting. When I run a 1/2" hose from the brake valve to the fill hole and run the tractor the brakes worked as the should. Hook up the return line back to the elbow as it is supposed to be and the brake locks as soon as tractor is started. Any more advice as to next steps.
Disconnect return line from brake valve to return dump elbow, and routed with a hose from the brake valve to a pail. Started , brakes did not lock up. Tube from brake valve to that elbow that is screwed into top of transmission housing is NOT restricted, nor is the elbow. Fluid coming out of the valve is a almost frothy, actually looked like a 1/2 melted root beer float. I pulled the filter, filter has alot of slime on it,even some what appear to be white plastic chunks of some sort. I am now very doubtfull that that mechanic changed the fliud of filter, when he repaired an issue I had with 4th gear. So, I am apparently getting more volume to the brake valve than the brake valve can get rid of with out having enough excess volumn(very little pressure) to apply the brake piston. I am thinking I must have some thing going on with the flow divider, maybe some thing partially plugged. I plan on pulling the MCV off and inspecting. When I run a 1/2" hose from the brake valve to the fill hole and run the tractor the brakes worked as the should. Hook up the return line back to the elbow as it is supposed to be and the brake locks as soon as tractor is started. Any more advice as to next steps.