Thank you for the post. Everyone on this forum is very helpful.
Each model we assemble has a crank for manual operation for the front and rear jacks.
The correct size is a 1/4" hex key if you are going to use a socket.
You will find the manual front jack overide in the hydraulic compartment, same as the battery, on the door side, just forward of the main compartment. You will find a small hole aprox 3" in the wall just above the hydraulic fluid tank.
Regarding the hydraulic overide, you can find the access in the main compartment, going right into the hydraulic pump (in the compartment above we just mentioned).
We are using the best components available, so you should not expect any failures, however, we leave these access points available just in case.
I hope this helps answer your questions. Thanks.