Msh2
Member
We have a small bulldozer, s/n T0450JX139324, that we were using to clear fences with and the operator told me he had a problem.
The dozer starts fine, but wont idle up, hence it wont move. Blade works fine. Error codes on dash screen: F423 and F9C3. The TCU also has codes flashing on it: RTOS and !APP
I have checked fuses and relays, disconnected cables from TCU, cleaned and replaced, disconnected ground strap, cleaned and replaced. All fluid levels are where they should be.
I would like to take the throttle dial out of its bracket and check voltages, but the screws are rusted in place that I am sure they would all be destroyed before they came out.
Any help would be greatly appreciated.
The dozer starts fine, but wont idle up, hence it wont move. Blade works fine. Error codes on dash screen: F423 and F9C3. The TCU also has codes flashing on it: RTOS and !APP
I have checked fuses and relays, disconnected cables from TCU, cleaned and replaced, disconnected ground strap, cleaned and replaced. All fluid levels are where they should be.
I would like to take the throttle dial out of its bracket and check voltages, but the screws are rusted in place that I am sure they would all be destroyed before they came out.
Any help would be greatly appreciated.