Montana 3750FL Rear Slideouts Problem - RV-Dreams Community Forum

CaptainRandy · RV-Dreams Family Member

Montana 3750FL Rear Slideouts Problem

GENECOP · RV-Dreams Family Member

The first obvious thing to check for would be obstructions in and out.

CaptainRandy · RV-Dreams Family Member

Done that.

CaptainRandy · RV-Dreams Family Member

When slidouts close, bedroom door has to be closed, unless you put someone in room, wife says no blockage inside room. One interesting note, as slideouts come towards each other the mattress pushes the dresser drawers into the wall about a foot. The dresser drawers are spring loaded.

GENECOP · RV-Dreams Family Member

Captain, that's some crazy slide setup...just saying. Closing your slides without watching!!!!! Mattresses pushing dressers into walls !!!!! I have not heard of that before, maybe someone else had, but this info combined with your problem is not surprising...

Terry and Jo · RV-Dreams Family Member

This is the first time I've heard of spring-loaded dressers. However, on the DRV Suites model that we have (and some others as well), part of our dresser is pushed back for travel as well. Obviously, the bottom drawers aren't as deep as the top drawers. Then when we park, we reach down and pull the bottom part of the dresser back forward.

Now, as for your problem, have you looked on any Montana forums as to whether anyone else has had the same issue?

Just to show what our dresser looks like with bottom portion in for travel and out for living, here are a couple of photos.

Terry

CaptainRandy · RV-Dreams Family Member

Yep, same type of setup for the drawers.

Searched forums and websites, no mention of similar problem, will run over to dealer where we bought the unit from on monday. WE were able to close one side (left) fully but right side is still 2" out.

Lonney Wade · RV-Dreams Family Member

We have a 2010 keystone Everest 37ft with 4 slide outs; if yours is like mine you will have a long flat gear maybe 3 or 4ft long under the slideout and a small round gear that rides on the long flat gear; that round gear has a shaft going over to the other side of the same slideout with the same setup; you could have sheared a pin, if so one part of the slideout will not go in as far as the other side; both round gears have to spin together at the same time; that's how the slide pulls both sides in and out together with the hydraulic cylinder, I hope this helps, if that's not it I tried my best!!

Lonney

Terry and Jo · RV-Dreams Family Member

Randy,

When you are checking with the dealer, ask if there is a proper sequence of operating the hydraulics on your coach. If they don't know, contact the manufacturer. On the DRV Suites models, there is a certain sequence so that the possibility of getting air in the lines is diminished. For instance, on ours, when we are bringing in the slides, we are to start with the door side/living room slide and then with the off-door/kitchen, and the bedroom slide last. Then we are to raise the cylinders on the Level-Up system. For setting up for parking, it is to be done in the reverse order.

This order is supposed to work the hydraulic fluids so that one helps "push out" any air at the reservoir for the hydraulic fluid. If we have problems, we've been told to cycle the hydraulic system a couple of times or more to see if it fixes the problem before seeking mechanical repairs.

Terry

CaptainRandy · RV-Dreams Family Member

Sonnys in Casper couldn't helpme. Said they would have to take slides apart to find out why they were bonding and they did not have a replacement pump. Priced hydraulic pumps. $750.00. Not bad for a pumpthat was only used once. Think I will tackle this once I get to AR. Can operate slides with 3/8 " drill on hydraulic pump till then.

Workinrvers · RV-Dreams Family Member

Randy,

If I remember correctly the slide mechanism is provided to Keystone by Lippert and carries a longer warranty then the 1 year provided by Keystone. Give Lippert a call and see if they can help you. On our Montana the pump was in the front generator compartment and was pretty easy to get to for a change out.
I am assuming you have checked the fluid level in the pump reservoir? This should be done when the slides are closed (or in your case almost closed). Since you mentioned using a drill then I assume the drill worked to close the remaining slide? This sure sounds like a failed pump that Lippert should stand behind.

Phil

Lonney Wade · RV-Dreams Family Member

Randy, if you used a drill then that tells me the pump is good; (maybe) you may have a bad solenoid at the top of the pump; you can bypass the solenoid by putting +12 volt wire to the other side of the solenoid post; this will run the pump motor if the motor is not bad. The solenoid also runs the motor forward and reverse; there are two different post for this. Even if the motor is bad you can replace the motor or the solenoid so you don't have to buy the hole thing; way too much money for the hole thing, just my two cents worth.

Lonney

Workinrvers · RV-Dreams Family Member

I agree with Lonnie that the pump should be good if using a drill operates the slides. I messed up on my previous post and was thinking about the motor being bad, not the pump. Good idea to check the solenoid first but I'm pretty sure that Lippert supplies the whole thing to Keystone, pump, motor, gears and solenoid. You might want to give them a call and they can at least help you trouble shoot the problem. I have had an occasion to talk with them as well as visit their service center in Indiana and they bent over backwards to help me.

Good luck and sorry about the confusion on my other post,

Phil