The governor assembly is tight in the case

Free up the governor assembly. Refer to Locking Differential Disassemble and Locking Differential Assemble .

Broken or weak governor flyweight spring

Replace the governor assembly and the latching bracket. Refer to Locking Differential Disassemble and Locking Differential Assemble .

The flyweight in the governor assembly is stuck open

Replace the governor assembly and the latching bracket. Refer to Locking Differential Disassemble and Locking Differential Assemble .

The cam plate or the governor drive teeth are broken

Replace the cam plate, the governor assembly, and the latching bracket. Refer to the following: