Travel motor shaft seal and floating seal often leak? Solution to problem

This time I am sharing a video regarding troubleshooting the shaft seal on the cat 305.5E2 mini excavator travel unit motor which has been replaced several times but still leaks again so that the pressure in the final drive chamber becomes high and causes the floating seal to be damaged.
This problem can be very fatal because the damage can spread to other components if left untreated for a long time.
Enjoy watching,
Hope it is useful...