There is a procedure on Newgle dated Oct 24, 2018.
https://newgle.newmarcorp.com/s/arti...-the-Slideouts
Title
Extending and Retracting the Slideouts
URL Name
Extending-and-Retracting-the-Slideouts
Summary
Provides step-by-step instructions for leveling the coach and operating the slideouts.
Contents
This article provides step-by-step instructions for leveling the coach and operating the slideouts.
BEFORE EXTENDING THE SLIDEOUTS
Park the coach on a reasonably level campsite.
Leave the coach at ride-height with air in the air bags (if equipped with air suspension) or on normal suspension (coaches without air suspension).
Plug the coach into shore power (if available) or start the generator to increase the voltage for better slideout operation.
For a full wall slideout, visually inspect the front vertical trim for adequate clearance. The spacing should look even from top to bottom. (See image.)
Verify that the path of the slideout is unobstructed and free from any surrounding objects, both inside and outside of the coach.
Once the appropriate conditions are met, follow the operating instructions posted in your coach to extend the slideouts.
Deploy the leveling jacks.
Important IMPORTANT
In the unlikely occasion that the slideout trim has inadequate clearances, try leveling or repositioning the coach and rechecking the clearances before extending the slideout.
BEFORE RETRACTING THE SLIDEOUTS
Retract the leveling jacks.
Start the coach.
Allow the coach air suspension to fill and return to ride height (units without air suspension will return to normal suspension).
Turn the engine off.
For a full wall slideout, visually inspect the front vertical trim for adequate clearance. The spacing should look even from top to bottom. (See image for reference.)
Verify that the path of the slideout is unobstructed and free from any surrounding objects, both inside and outside of the coach. This includes any water or debris that may have collected on the slideout roof or the topper awning.
Important IMPORTANT
Debris left on the roof or topper may prevent the slideout from sealing properly when retracted, as well as prevent the mechanical lock arms from closing properly when the slideout is extended.
Retract the slideouts.
Inspect all slideouts for complete retraction.
If the coach is equipped with manual lock arms, make sure to lock them.
Unplug the coach from shore power when you are ready to depart.
Important IMPORTANT
In the unlikely occasion that the slideout trim has inadequate clearances, try leveling or repositioning the coach and rechecking the clearances before retracting the slideout.