Schwintek Lippert Motors

[sedcom]

I have a 2016 Thor Vegas 24.1. I am considering carrying a spare slide motor. Does anyone know how you determine a part number or which motor without actually removing one? Thanks for any advice.

[Judge]

You might be able to see the ID Tag on the motor if you pull back the bulb seal. Otherwise that information might be available on the component list for your coach or you can try calling Thor to see if they can tell you.

A rule of them is usually smaller slides sometimes use the 300:1 motor while the larger and heavier slides use the 500:1 motor.

Regardless, getting the right motor is very important.

[Grumpy Grampa]

If you call or send Thor your Vin number they can tell you.

Good luck

[16ACE27]

I'll go out on a limb and say you have the Lippert 236575 RV In-Wall Slide-Out Motor; 300:1

[camperguy99]

Anyone used the 500:1 motor where a 300:1 was original one?

[Judge]

Originally Posted by camperguy99

Anyone used the 500:1 motor where a 300:1 was original one?

I have not but as long as you replace both motors, the Controller will operate them properly after you go through the Sync procedure.

A 500:1 motor will open and close the slide slower than a 300:1 motor but the 500:1 is better suited for large and heavy slides.

[TripleGGG]

My small slide has 300:1 and my large slide has 500:1 so I carry 1 of each for spares.

[craigd853]

Originally Posted by Judge

I have not but as long as you replace both motors, the Controller will operate them properly after you go through the Sync procedure.

A 500:1 motor will open and close the slide slower than a 300:1 motor but the 500:1 is better suited for large and heavy slides.

Hello, not sure where you heard that information but I was told the only difference between the two is the torque value. Both motors operate at the same rpm which is what the sync feature does as it counts the amount of revolutions thereby keeping the slides in sync. If I'm wrong I apologize in advance but I was told this by one of the aftermarket manufacturers of these motors as I was looking into a spare motor at the time. Guess it's possible that the person I spoke to just could have been trying to sell me what they had.

[Judge]

Originally Posted by craigd853

Hello, not sure where you heard that information but I was told the only difference between the two is the torque value. Both motors operate at the same rpm which is what the sync feature does as it counts the amount of revolutions thereby keeping the slides in sync. If I'm wrong I apologize in advance but I was told this by one of the aftermarket manufacturers of these motors as I was looking into a spare motor at the time. Guess it's possible that the person I spoke to just could have been trying to sell me what they had.

It was my understanding that for the 300:1 motor it takes 300 revolutions of the armature shaft to move the shaft coming out of the motor 1 revolution. For the 500:1 motor it takes 500 revolutions of the armature shaft to move the shadt coming out of the motor 1 revolution.

Lippert specifically says that a slide has to have two 300:1 or two 500:1 motors and they cannot have one of each.

Given it takes 500 revolutions, it would create more torque with the 500:1 compared to the 300:1 motor.

I could be wrong but that was my understanding. Perhaps the Controller has enough intelligence that after going through the sync procedure it can spin each motor at different rates to keep a 300:1 and a 500:1 synchronized?

[TripleGGG]

I believe Judge is correct as that is what I have been told and read. Also, my 300:1 is faster than my 500:1. I've actually timed them to see.

[16ACE27]

Originally Posted by craigd853

Hello, not sure where you heard that information but I was told the only difference between the two is the torque value. Both motors operate at the same rpm which is what the sync feature does as it counts the amount of revolutions thereby keeping the slides in sync. If I'm wrong I apologize in advance but I was told this by one of the aftermarket manufacturers of these motors as I was looking into a spare motor at the time. Guess it's possible that the person I spoke to just could have been trying to sell me what they had.

And the torque value difference is achieved by a gearing difference. The RPMs of the motors are the same, but not the output gear. The 500:1 output shaft rotates slower than the 300:1 output shaft, hence the slide will move slower with the 500:1 motor than with the 300:1 motor.

[macdaddy1111]

Originally Posted by camperguy99

Anyone used the 500:1 motor where a 300:1 was original one?

Yeap

Thor paid to swap out two slide motor sets from 3's with 5's

Shop said 3's did not have enough power.

Thought our tech shop said we went from 3hp to 5hp.

I will find out next week when they swap out bunk bed motors

[sedcom]

So I queried Lippert with my VIN and they said it is 300:1. Also the 236575 part noted below is correct. But Lippert uses a different numbering scheme. Anyway the 236575 is a direct replacement. Amazon is far cheaper than Lippert for sure. Thanks everyone.

[wrongwayLarry]

Amazon is definitely cheaper and you can find the motors even cheaper on the internet by just looking around a bit, there are a few suppliers for these motors and priced around $160 or less. I had 2 motor failures with the Lippert motors and took one apart and found that the encoder comes loose on the shaft. I removed the magnetic wheel and reglued it to the motor shaft with JB weld reinstalled the motor and it still works.

[Beau388]

Originally Posted by macdaddy1111

Yeap

Thor paid to swap out two slide motor sets from 3's with 5's

Shop said 3's did not have enough power.

Thought our tech shop said we went from 3hp to 5hp.

I will find out next week when they swap out bunk bed motors

A 3 hp motor will draw about 2,500 watts or 746 watts/hp @100% efficiency. Dividing the watts by 13.2 volts gives 189.4 amps or 63 amps/hp. The slide's motors are rated at 1/10 hp and draw about 7 amps @ 13.3 volts near stall. My shunt shows the big slide (14 ft) has amperage draw of 2.9 amp @ 13.2 volts for each motor or 38.3 watts.
The reason for a 30 amp 12 volt fuse for the slides is the controller will try to move the slide with any voltage above 8.0 volts. 74 watts divided by 8.0 volts gives 9.25 amps. DC motors are very inefficient due to the commutator on the rotator, so figure 70% efficiency or 13.2 amps time two motors gives 26.4 amps.

[Judge]

Originally Posted by Beau388

A 3 hp motor will draw about 2,500 watts or 746 watts/hp @100% efficiency. Dividing the watts by 13.2 volts gives 189.4 amps or 63 amps/hp. The slide's motors are rated at 1/10 hp and draw about 7 amps @ 13.3 volts near stall. My shunt shows the big slide (14 ft) has amperage draw of 2.9 amp @ 13.2 volts for each motor or 38.3 watts.
The reason for a 30 amp 12 volt fuse for the slides is the controller will try to move the slide with any voltage above 8.0 volts. 74 watts divided by 8.0 volts gives 9.25 amps. DC motors are very inefficient due to the commutator on the rotator, so figure 70% efficiency or 13.2 amps time two motors gives 26.4 amps.

He was a little confused about what his shop meant. The slide motors are not rated by HP.

Physically the slide motors are identical. What makes them different is the gear ration at the shaft exiting the motor. There is a 300:1 slide motor and a 500:1 slide motor. The 300:1 is used on smaller slides and the 500:1 is used on larger, heavier slides.

His shop swapped out the 300:1 motors for the 500:1 motors to give him more torque moving the slide. The only down side is the 500:1 motors will move the slide slower..... but they are better for the bigger slides.

[Beau388]

Originally Posted by Judge

He was a little confused about what his shop meant. The slide motors are not rated by HP.

Physically the slide motors are identical. What makes them different is the gear ration at the shaft exiting the motor. There is a 300:1 slide motor and a 500:1 slide motor. The 300:1 is used on smaller slides and the 500:1 is used on larger, heavier slides.

His shop swapped out the 300:1 motors for the 500:1 motors to give him more torque moving the slide. The only down side is the 500:1 motors will move the slide slower..... but they are better for the bigger slides.

I was only trying to show that a permanent DC motor is almost always a fractional hp motor. The 300:1 slide motors have a epicyclic planetary gear reduction gear train. No clue what the transmission is in the 500:1 slide motor. I suppose it could epicyclic also.