The only service than is performed in the coach is oil/filter change and minor maintenance items. Any thing else requires the generator to be dropped and removed. Steps rarely have problems. If the failed, you could disconnect the linkage and use them. They would then have to be wired or tie wrapped to move. i have done this in a rest area. Possibly the slide didn't work because the brake might not have been set. There are problems with slides, but they really improve the livability.
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