- Jan 11, 2021
- Al Pat
Mine with the internal brakes is a 1977 model. Must be someone in the engineering department felt the internal brake setup had an advantage over the external brakes that they had switched to for a handful of years?I also have the rear end with the internal brakes on my 1450 parts tractor.
I am thinking that this was another one of those situations where international harvester probably wasn't expecting these machines to still be around and in use after 40-50 years and probably weren't expecting that internal brake design to ever need servicing.It is very hard to change it in a hydro, prolly why they put external brakes on the later models. You have to drain the fluid, remove the pump, then the top plate, then knock out the plug that acesses the input shaft, then the axles, differential, yadda yadda yadda. More than likely the the brake rod and o ring are froze up.
I added some pictures so you can see what a PITA it is change them. The parts breakdown is shown. There is no mention changing them in the service manual.