Forum Discussion

clev's avatar
clev
Explorer
Mar 12, 2015

How does your slide work?

My brother in law is visiting and the batteries in his Montana 5th wheel have died. Even though he is hooked in to power at my home, his slides will not work. He has an operational converter and all 12 volt accessories are working, buy not the slides. We called Keystone Montana Tech Support and they told us that the slides ONLY work on battery power. Without the batteries, the slides will not work. I asked about the converter operating the slides and the tech said no. I'm curious; batteries have a shelf life. So, if you're in a campground, hooked up, and the batteries die, do you have to put yourself at the mercy of the local merchants for 2 $200.00 batteries? Personally, I've never heard of any RV that won't operate the slides with shore power and the converter. At least my my Holiday Rambler will work. Am I behind the times of trailers with cheap by-passes? Aren't slides supposed to work with shore power and converters? Please educate me.

Another thing; one of the hydraulic lines ruptured and had to be replaced. To get to them, we had to drop the belly covering. His 5'er 'supposedly' has the 4-seasons package, but when we dropped the belly, there was no insulation. There was a quilted piece of aluminum foil material laying on the belly covering, but that was it. Once the covering was dropped, I was looking at the bottom of the floor, nothing else. My BIL was not disillusioned; he swore and 'be damned' the aluminum was the 4-seasons. Also, it's 6 years old and is de-laminated in may places. This is one cheap, piece of $.., I'll never own one. Anyway, someone tell me about the slides working on the converter and the belly insulation. Thanks.
  • Another vote for needing the batteries correctly connected and charged for the slides to work. My Cedar Creek 36CKTS came with 4 six volt batteries and they weren't connected correctly. They were connected as per the diagram in the battery box, but they didn't work that way and neither did the slides. The 6 point jack system struggled but it did work. It didn't matter if we were plugged in or not. After going back and forth via email with Forest River, I got a diagram from them on how to hook up the batteries and then everything worked fine.

    As for the insulation, sounds like someone pulled a fast one on your BIL. I just had to get under mine last week (warranty ran out last month of course). Mine had a thick layer of insulation and the quilted foil liner above the belly pans. I assume that foil is there to keep highway water from getting in there, but I can tell you they sure as hell hold water INSIDE quite well.
  • bpounds wrote:
    The slide motor draws a lot of current to operate. More than the converter alone can provide. That's why it needs the battery. There is a label on my control panel saying that batteries must be in place before operating the slide.

    Having said that, my slide motor would still try to run even without battery. It probably wouldn't be able to do it, but it would grunt and try.

    Also, if your BIL batteries are really failed and dead, they are pulling current from your converter too, making the situation even worse.


    No, b; the batteries are totally disconnected.
  • BB_TX wrote:
    The hydraulic pump motor is a high current device, something like 50 amps, maybe more for starting current. It is connected to the battery via a short #4 ga wire. I don't think the converter is capable of supplying that kind of amperage.

    The pump does have a fitting on the end that you can connect a drill to and run the pump to operate the slides if the battery fails.

    Curious if you have hydraulic slides, and if so have you actually tested yours with a dead battery to see if the slides will work. Probably will not if hydraulic. If you have cable slides, maybe.


    They are hydraulic, BB.
  • Thank all of you for the replies and really, I am surprised. Depending on the converter, I would have thought that 120 volt electricity, through the converter, would provide more power than a stand alone battery. Yes, I know there is a crank handle to move the slide but I really wouldn't want to attempt that task. I really think that is a cheap short cut on Montana's part. I keep the batteries disconnected on my Holiday and keep a conditioner attached to them. My power stays plugged in and ALL 12 volt accessories are operational; including the slide (only one).

    What about the insulation? Any comments?
  • The slide motor draws a lot of current to operate. More than the converter alone can provide. That's why it needs the battery. There is a label on my control panel saying that batteries must be in place before operating the slide.

    Having said that, my slide motor would still try to run even without battery. It probably wouldn't be able to do it, but it would grunt and try.

    Also, if your BIL batteries are really failed and dead, they are pulling current from your converter too, making the situation even worse.
  • The hydraulic pump motor is a high current device, something like 50 amps, maybe more for starting current. It is connected to the battery via a short #4 ga wire. I don't think the converter is capable of supplying that kind of amperage.

    The pump does have a fitting on the end that you can connect a drill to and run the pump to operate the slides if the battery fails.

    Curious if you have hydraulic slides, and if so have you actually tested yours with a dead battery to see if the slides will work. Probably will not if hydraulic. If you have cable slides, maybe.
  • Not sure about the dead batteries and slide operation...so far we have never had dead batteries...

    But, most slides can be operated by hand. I just have to stick a crank through an opening in the skirt and I can crank ours open or closed manually.