We are not new to trailering but have just brought home a new trailer with two slides. When we backed the new trailer into the drive and got her level then put the slides out she tipped to the left a good 3 or 4 inches I bet. I had set the power stabilizers before I put the slides out and was leaning badly to the left after. I wonder if I need to "pre load or off set" to the right before setting the stabilizers then put the slides out and have it come back to level. Please tell me how you keep yours level.
I always level, blocks under the wheels, before extending the slides. Depending on the terrain I will have the left, heavy, a little high before the slides go out but only if I think the stabilizers are going to sink into the ground.
One thing to remember is they are 'stabilizers' and not 'jacks'. They are to just stabilize the unit while leveling is done with boards under the wheels.
The slides represent a lot of weight and a lot of leverage on the trailer. I level so that the slide side(I have two) is about a quarter bubble high. When I extend the slides, it levels out. Also, I usually have to go back and readjust the curb-side stabilizer after I extend the slides. I guess all trailers are different and you should try it both ways and stick with what works best for you. I also like to have the slide side end up slightly lower so that the air conditioner run-off is on the back side instead of the front where we are always walking
You have to level, then put the stabilizers down then put the slides out. the stabs will keep the trailer from tilting out of level. if the trailer is going out of level with the stabs down then you have a big problem!
Son Brandon 11yrs
Daughter Marissa 10yrs
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Both my slides are on the street side. Since it was new, if I set it perfectly level and then put slides out, it will lean to the street side. I was told this was normal as that side of the coach carries more weight and then when it is hanging out, there is more leverage for it to tilt a bit. When setting up, I lean it to the curb a bit so it is either level or still leaning to the curb. We like the head of our bed in the slide a bit higher than our feet.
First, read your manual if you have one. My class A required leveling first and I recall the one time I forgot to level first my slide got bound up when it started to go out. My FW manual makes no statement about leveling first, so I've ran both slides in and out without my stabilizers down.
Having said that, the key with any TT or FW is to first get level side-to-side using boards or pads under the low-side wheels, then unhitch using your TT tongue jack or FW front jacks. After driving the TV away, level front-to-back with your tongue or FW jacks, and then put down your rear stabilizers and front stabilizers (TT). No TT or FW should lean excessively after putting out the slides once you've leveled.
2002 Keystone Cougar 286, 8,400lbs loaded, pulled with a 2004 F150 Supercrew, 5.4, 3.73 gears. Retired and enjoying life