Okay it is only a pop up, but the procedure should work on any trailer with jacks at all 4 corners and a tongue jack.First, get yourself some of those inexpensive level indicators. Place them on the front, left side, and buy an extra one for the back.Start by "eyeballing" the trailer as it sits, BEFORE you disconnect the tow vehicle, and decide if you need any spacers under the tires or not.Now with the tow vehicle unhooked and move out of the way, lower the tongue jack until the trailer is clearly leaning forward. Place/lower your 2 jacks in the back and raise the tongue jack until your trailer is approximately level, front to back. Check the rear, side to side level. Likely you will have to lower the tongue jack and adjust on or the other rear jacks.With the rear level side to side, raise the tongue jack until you are clearly above level (nose high). Place/lower the front jacks. Lower the tongue jack and check the front side to side level and the side front to rear level. Adjust as required.This may seem like a lot of fiddling but using the tongue jack is a lot simpler than trying to jack a corner (unless it is a tiny amount).

On my Winnebago the corners jacks are for stabilizing only. "DO NOT attempt to lift the unit with the stabilizer jacks. These are not designed to bear weight, only help stabilize the unit from movement."

That may work on a popup but I suggest you probably don't want to try that with a TT.

As other say, on larger TT's, the corner jacks are for stabilizing only, not for lifting. I wouldn't recommend this.... I guess if it works for pop up fine.Mike

You may be able to do this with a pop-up, but anything larger requires the trailer be as close to level (side to side) before ever unhitching. This mean putting something under the tires to raise the low side. Once finding the exact position you want the trailer sitting, you mark that spot where the tires sit. Then pull forward or backward, put something in that spot, like boards or Lynx blocks, and then pull the camper on them, raising the low side. Chock the tires (always). Then unhitch (only after chocking the tires). After you unhitch, then you level front to back with the tongue jack, then lower your stabilizer jacks snug.Unless you have built in hydraulic levelers on your camper that are capable of actually lifting the whole thing, the rest of us depend upon raising the low side by rolling the tires up on something. When we had a pop-up, I always leveled by putting lumber under the tires first, then front to back with the tongue jack; never leveled using the stabilizer jacks. To each their own though!

You shouldn't be jacking anything with the stabilizers, on a pup or a TT. As others have said, level side to side by pulling onto a board, and front to back with the tongue jack. Put the stabilizers down snug enough to steady the rig, and that's it.

How I level my trailer | Good Sam Community

IHnutz
Explorer
Jun 07, 2017
1) Unhook the truck
2) Push the "auto level" button
3) Go have a beer!!!!
SoundGuy
Explorer
Jun 06, 2017
trackdude wrote:
We have a relatively light-weight travel trailer which seems to start out level side-to-side but the weight of the slide out takes it off level. I watched a YouTube video that said it was OK to put the slide out first, then drive up on leveling blocks.

Any comments? I have not tried it yet.

Seems like a bad idea to me. My shallow slide does have some impact on "perfect" side-to-side level but I find it just as easy to offset the trailer's side-to-side level by 1/2 bubble and once the slide is out it all seems to work out pretty well. I do find this much easier to judge with this large bubble level I affixed to the front of the trailer.
trackdude
Explorer
Jun 06, 2017
We have a relatively light-weight travel trailer which seems to start out level side-to-side but the weight of the slide out takes it off level. I watched a YouTube video that said it was OK to put the slide out first, then drive up on leveling blocks.

Any comments? I have not tried it yet.
bikendan
Explorer
May 26, 2017
Having owned 2 popups, I can tell you that their lightweight frames bend easily.
Any jacking of the frame can affect door assembly, deploying of bed ends, attaching canvas, roof raising.

Level side to side with blocks under the wheel and front to back with tongue jack.
beemerphile1
Explorer
May 26, 2017
theoldwizard1 wrote:
...I was referring to real JACKS, not "stabilizers". The need to be UNDER the trailer on preferably on the frame corner.

Third, I should have explained, my method only will pick up a corner about 1-2". Most of the weight is still on the axle/tires.

The concern isn't really the jacks, they are inexpensive and easily replaced. The concern is the torque exerted on the frame. The weight is engineered to be on the frame at the axle, not at the corners. You get away with it because of the short length of the popup.

On a larger/heavier trailer there is a great risk of bending the frame, that is why it is bad advice.
stx_dead_I
Explorer
May 26, 2017
Saw someone destroy a jack on a 25ft trailer doing this. Definitely a no-go
wa8yxm
Explorer III
May 25, 2017
When I had a PUP and then a solid trailer and now a Class A

I used the inexpensive bubble levels (Still do) and as the original poster did. Eyeball. Sometimes I can hit level by moving the RV a bit one way or the other.

THen based on the amount of "Bubble off" I lay plank 2x12" (Tire width is about 11 inches) and drive up on them, I may lay 1,2.3 more as needed making a proper pile of it.

Once level I drop jacks since they don't work well

But with the proper planking I can usually hit level.

True story. Man with a 5th wheel trying same procedure having no luck gettin wheels on to plank properly. Told him "Get it level and I'll pick it up and you can move the planks, I can only lift 12 tons" (Got that look, You know, the "Are you from outer space" Well while he was working at getting level I took my wagon (Garden wagon) over to the proper bay and loaded up an air compressor and a 12 ton air/hydraulic jack-jack.... (he then understood how I planned on doing the heavy lifting.. With just two fingers no less)
TNGW1500SE
Explorer
May 25, 2017
bdpreece wrote:
" How I level my trailer"

How I level my motorhome:
I ask my wife which corner is low and raise it even if the level shows otherwiw0ise.

If that does not work I lay her on the floor and which ever way she rolls is low.

I use the bubble levels and then my wife tells me where the levels are wrong and I correct it. Then we fine tune it again in about a half and hour.
Lwiddis
Explorer II
May 25, 2017
Soundguy, those pictures were just prior to a tire rotation, then a brake overhaul and grease repacking...so then its ok, right?
troubledwaters
Explorer III
May 25, 2017
theoldwizard1 wrote:
First, I would never try this !

Second, I was referring to real JACKS, not "stabilizers". The need to be UNDER the trailer on preferably on the frame corner.

Third, I should have explained, my method only will pick up a corner about 1-2". Most of the weight is still on the axle/tires.
The problem is, a very small percentage of trailers out there (possibly 5% or less) have "Real Jacks" under them. You could be doing a disservice to newbies on here who may not know there is a difference and read what you say then implement it.