Schwintec slide problem

[tvfrfireman]

I have two shwintec slides on our 38 foot fifth wheel. The larger of the two slide has been a problem. I have over the last two years had to replace both motors, a controller, and the parts that mount to the side of the slide, etc... It has worked flawlessly for the last five months. Now, a new problem has surfaced. One of the motor seems to work its way up and disengage from the shaft that turned both top and bottom gears. I put a larger and a bit long self threading screw in place of the old one that is designed to keep the motor from spinning and holds the keeps it from jump up and out. This worked for a while and it is now doing it again. Has anyone of you had this problem and what was the fix? Thanks in advance for any help in this matter. best regards, David

[dougrainer]

Unless you have a LOT of time working on Schwintek system's(I DO), most RV Techs will not want to work on them. Most if the time it requires parts when the system fails and those parts are rarely available locally. But, I have never had a motor lift up at all as long as it was installed CORRECTLY. You must make sure the motor set screw is installed INTO the oval hole slot of the motor. There are 4 different ways for that motor to be installed. FYI, when the system FAILS to extend(motor has usually seized) and you NEED to get the motor lifted up and removed, the ONLY way to do it is usually destroying the motor, because that set screw will NOT allow that motor to lift up, even with a chisel and hammer knocking it up. So, if yours lifts up, you are not installing it correctly. Doug

[tvfrfireman]

tvfrfireman wrote:

dougrainer wrote:
1. The small screw that is installed from the outside to hold the motor DOWN will keep it down. The motor cannot move UP if the motor is installed correctly and the correct length screw is used. That screw has NOTHING to do with keeping the motor from spinning. There are 4 threaded bolts coming out of the motor that are installed into the 4 holes of the nylon block that keep the motor from spinning. That one screw keeps the motor from lifting up. You don't state what Year/Brand RV you have but your sig states a 2004. I don't believe Schwintek was in business in 2004.
2. IF you have a 6 point Leveling system with the 2 center jacks, that may be your problem if you extend and retract a Schwintek slide with the jacks extended and the RV leveled. I have had a few 5th wheels that when a 6 point system is extended, the center jacks put an undue stress upward on a Schwintek system and the sidewall hole cutout causing the Schwintek rack to bind and fail. The solution is to always extend then rooms, then level and then retract the jacks and then retract the rooms.
3. Your problem may be, you are doing the work yourself? :@ Doug

You are correct in the spinning of the motor. I followed schwintec's instructions on replacing everything and it went fine. I put a little longer screw in from the outside but the motor still ends up uncoupling from the shaft. I can build a house from the ground up and am competent at these sort of repairs. I will keep tinkering with it as you are the only person that has responded. In my neck of the woods, I have had bad luck with getting things repaired. One fellow who came out to look at it just shrugged his shoulders and said "good luck. I don't have a clue."

I forgot to mention it with wheel is a 2013 Elite suites with the six point leveling. The motor did come out when I moved the slide out when it was in storage. Thanks for your help and taking time to offer suggestions. I will no long use the slide when the jacks are down.

[tvfrfireman]

dougrainer wrote:
1. The small screw that is installed from the outside to hold the motor DOWN will keep it down. The motor cannot move UP if the motor is installed correctly and the correct length screw is used. That screw has NOTHING to do with keeping the motor from spinning. There are 4 threaded bolts coming out of the motor that are installed into the 4 holes of the nylon block that keep the motor from spinning. That one screw keeps the motor from lifting up. You don't state what Year/Brand RV you have but your sig states a 2004. I don't believe Schwintek was in business in 2004.
2. IF you have a 6 point Leveling system with the 2 center jacks, that may be your problem if you extend and retract a Schwintek slide with the jacks extended and the RV leveled. I have had a few 5th wheels that when a 6 point system is extended, the center jacks put an undue stress upward on a Schwintek system and the sidewall hole cutout causing the Schwintek rack to bind and fail. The solution is to always extend then rooms, then level and then retract the jacks and then retract the rooms.
3. Your problem may be, you are doing the work yourself? :@ Doug

You are correct in the spinning of the motor. I followed schwintec's instructions on replacing everything and it went fine. I put a little longer screw in from the outside but the motor still ends up uncoupling from the shaft. I can build a house from the ground up and am competent at these sort of repairs. I will keep tinkering with it as you are the only person that has responded. In my neck of the woods, I have had bad luck with getting things repaired. One fellow who came out to look at it just shrugged his shoulders and said "good luck. I don't have a clue."

[dougrainer]

1. The small screw that is installed from the outside to hold the motor DOWN will keep it down. The motor cannot move UP if the motor is installed correctly and the correct length screw is used. That screw has NOTHING to do with keeping the motor from spinning. There are 4 threaded bolts coming out of the motor that are installed into the 4 holes of the nylon block that keep the motor from spinning. That one screw keeps the motor from lifting up. You don't state what Year/Brand RV you have but your sig states a 2004. I don't believe Schwintek was in business in 2004.
2. IF you have a 6 point Leveling system with the 2 center jacks, that may be your problem if you extend and retract a Schwintek slide with the jacks extended and the RV leveled. I have had a few 5th wheels that when a 6 point system is extended, the center jacks put an undue stress upward on a Schwintek system and the sidewall hole cutout causing the Schwintek rack to bind and fail. The solution is to always extend then rooms, then level and then retract the jacks and then retract the rooms.
3. Your problem may be, you are doing the work yourself? :@ Doug