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Old 08-03-2011, 07:05 AM   #1
Montana Master
Join Date: Dec 2010
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M.O.C. #10948
Slide Lockouts on 3750

The 3 hydraulic slide lockouts are labeled ... Main, Bed and Opp if memory serves me correctly. Is the Main for the kitchen slide? I locked it out (I thought) but it still came out whereas when I locked the bedroom slides only, they remained in and just the kitchen came out. If I lock out the Main shouldn't the kitchen stay put?
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Old 08-03-2011, 10:14 AM   #2
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Location: St. Clair Shores
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M.O.C. #10151
I had a similar situation on my 2011 3400rl. I discovered that I hadn't turned the knob far enough to turn it off completely. The next time I turned it with a little more force and the problem was solved. Good luck and let us know what you find.
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Old 08-04-2011, 08:01 AM   #3
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M.O.C. #10758
I've noticed on mine, that sometimes the knob turns back by itself. I've had to hold the know to make sure it stays in the off position.
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Old 08-04-2011, 08:27 AM   #4
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According to the website a 3750 has 5 slide outs and you state there are only three valves. On my Monty the "Main" is the driver's side living room, the "Opp" is the opposite living room slide out across from the "Main" slide out. I have a fourth valve labeled "Kitchen" for the Kitchen/Fridge/dining slide out. Four valves for four slide outs on the same motor/pump system.

If you have a 3750 and it does have 5 slides and you only have 3 valves, then they would have to be doubled up somewhere, or there's another hydraulic pump and valve system.

Bingo has a 3750FL.... I hope he can pipe in on what gives?

Something is puzzling... After this has been confirmed the faulty valves like others mentioned can occur.
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Old 08-04-2011, 08:35 AM   #5
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Join Date: Feb 2007
Location: Winfield
Posts: 7,316
M.O.C. #6846
Art and others,
The front two slides in the living room are electric cable slides, hence they do not have the hydraulic lock-out feature. They are on separate controls. Moutard is correct in that main is the kitchen, bed is the kitchen side of the bedroom slide and opp is the other side of the bedroom slide. I would think it is as Walt states and the knob was not fully engaged.

Bingo and Cathy - Our adventures begin in the hills of WV. We are blessed by our 2014 3850FL Big Sky (previous 2011 3750FL and 2007 3400RL) that we pull with a 2007 Chevy Silverado Classic DRW CC dually.
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