Rebecca,
The hydraulic pump system for your living room slide and leveling system only runs those two items. The only issue that you may run into in driving the coach if the jacks are up with the system inoperative is that the slide is held into the closed position by the hydraulic pressure in the ram that moves the slide. So if you have to vent the pressure in the slide ram to manually retract it, your slide may not stay completely closed while traveling. Therefore, you may need to block the slide closed with a 2X4 on the floor between the wall and the slide or use a come-along under the slide to keep it closed.
Gerald