Lost Hydraulic Fluid

[Rebel702]

2018 Montana 3811MS
At our destination realized doorside slide was out approximately 4" at bottom.
Setup with jacks down and level. Ran bedroom slide out OK. Door side slide started out OK and then I reversed to check that it would retract fully. Heard fluid sounds and wife spotted fluid draining through refrigerator low point drain hole. Stopped retract and proceeded to fully extend DS and ODS slides.

Assumption is the retract line for the slides is compromised (fitting or line). Hydraulic reservoir is empty. Jacks are down and slides are out. I need to get the unit to dealer for warranty repair (they do not have mobile repair service).

I have reviewed all the hydraulic threads and read all the Lippert manuals. I do understand the "Manuel" operation of the pump and the solenoids but this still requires fluid in the lines. I assume I can get jacks up without losing more fluid from the slide retract line.

How can I retract the slides without using the hydraulic system? Dealer and Keystone say use the crank. I have not seen any place to use a crank.

I have not, nor intend to pull the bottom coraplast to get into this.

Ideas?