Lami_55,
Very hard to answer your question with a simple answer. Maybe there is no answer...
There are 3 types of operating systems
1. Cable
2. Electric
3. Hydraulic
The type of slide operator that is installed depends on several variables.
1. How long is the slide.
2. How much does the slide weigh.
3. How far will the slide travel outward.
4. Is the slide an above the floor model.
5. Is the slide a flush floor model.
Some are good and some are bad.
They all have their pros and cons. From a tech's viewpoint, I look for smooth and positive movement. No herks and jerks, no fits and starts, and no jaming or binding. And, of course, does the RV come with a complete set of Installation/Service manuals for the slides.
I also check out the operation of all slides from the inside AND the outside. And don't forget to look under the slide outside for indications that the slide is rubbing something wrong and grinding off paint or metal. And based on my last slide job, I will never buy any RV without some kind of a limit switch on the slides. A slide that goes out too far can crack the outside wall, while a slide that comes in too far can easily break something internally.
Hope this helps.
__________________
Dale Lee Sumner
RVIA/RVDA Master Certified RV Service Technician
www.sumdalus.com
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