We do open the BR slide of our 3121 for overnights when "on the run" connected to the truck. We don't open the LR/K slides unless the jacks are down.
From the owners manual:
Quote:
Basic Slide-Out Tips
Before operating any slide-out:
1. The RV must have a fully charged RV battery (having the shore-line cord plugged in may NOT be enough).
2. Turn off all necessary lights and 12V components prior to extending/retracting.
3. The RV must be leveled and stabilizer jacks extended.
4. Make sure the room has clearance, inside and outside, to extend/retract.
5. Make sure water and debris are removed from the top of the room before retracting
6. Avoid injury by keeping all body parts out of the way of the slide-room.
7. Make sure other parties are clear of the slide-out before extending/retracting.
8. DO NOT ride in the slide-out when extending/retracting.
9. DO NOT step on the floor of the slide out when the room is retracted. The slide out floor is not supported by the main floor and stepping on the floor may cause structural damage to the slide room.
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