First off, I know nothing to speak of about any of the electric steps with the exception of the KwiKee brand, so knowing what brand you have would help. Knowing the age of the steps would also be a good thing.
Removing the clevis pin from the motor arm and step lever can be a real PITA. Somehow they get installed so that in certain positions it is really impossible to remove the pin and removing the motor is the solution. I put my clevis pin in backwards from the factory and used a hairpin retainer rather than a cotter key(yes key is correct pin is the common usage but key is correct), it is much easier to remove. With the steps down, there can still be movement of the steps and I simply put a block of wood under the step when disconnecting.
The KwiKee manual is your best source of information, search on line, the manual number is 888 or Chris Bryant has it on his website.
On edit, after reading your follow up post, here is my suggestion, when my steps had failed, I used a ratchet style cargo strap it hold it up in place. They have a million and one used and carrying a couple in the RV is smart. Still need to know your make and model to send diagram of what to do.
"I travel not to go anywhere, but to go. I travel for travel's sake. The great affair is to go". R. L. Stevenson
David Bishop
2002 Winnebago Adventurer 32V
2009 GMC Canyon
Roadmaster 5000
BrakeBuddy Classic II