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Old 08-17-2015, 05:45 PM   #1
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Levelers/slides operation

We recently purchased a 2014 Tiffin Allegro RED 33AA. Prior to this, we have always owned gas rigs and are now trying to get up to speed on all things diesel before setting out on a trip.
We have a question regarding operating the slides. We hook up to shore power, set the brake, put transmission in neutral, turn off the engine and lower the jacks. The ignition key will turn to the left which we guess is the accessory (ACC) position. We can then put out both the front slides or if the slides are out, retract the front slides. However, when the key is turned to the left ACC? the rear slides will not go out or if out retract. To operate the rear slides the key must be turned to the right. All dash lights come on, including the glow indicator. One more click to the right would start the engine which we do not do. However, when putting out the rear slides with the key turned to the right, one or both of the rear levels retract maybe three or four inches. After the rear slides are out, we can manually lower the rear levels so they are again touching the ground.
What are we doing wrong? Or is there some problem with the rear slides in that they will only operate when the ignition key is turned to the right rather than to the left ACC?. The front slides will operate if the ignition key is turned either to the left or right.
Any help will be appreciated.

Robert & Evelyn

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Old 08-17-2015, 06:29 PM   #2
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Join Date: Jan 2000
Location: Silver Springs, FL. USA
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Most late model RVs want you to have the engine running with coach in Park (and maybe brake set) to operate slides or jacks. That's the current RVIA recommendation and most RV builders follow it. Most also say to level with jacks, then deploy slides. Obviously, the key is ON if the engine is running.

You can download a 2014 Allegro Red Owner Manual here:

If the owner manual or dealer didn't go over that, call Tiffin and ask about their recommended procedure.

A quick read of the RED manual shows that Tiffin wants the engine not running & brakes set, but key On or Acc when deploying jacks (Chapter 9). Differs from slides where they want it ON & Running (Chapter 8).
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
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levelers, slide

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