Jack to check bearings and brakes - Dutchmen Owners

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Old 03-06-2019, 03:24 PM   #1
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Jack to check bearings and brakes

I have a 4 ton floor jack and jack stands. Can I safely use this to jack up one axle at a time to check the brakes and bearings on my 3570 Voltage? I really don't want to go out and buy a large bottle jack if I do not need to. I also think the floor jack is more stable and the jack stands better, although I am unsure of the weight on each axle. But, here is my calculations. My unit is about 26000 pounds fully loaded. If I split that between the three axles it comes to about 8700 pounds per axle and then about 4350 per tire. It appears the floor jack and jack stands should be plenty big enough. Even though these are rudimentary calculations, I would seem to be plenty ok with 8000lb. floor jack and jack stands. Right?
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Old 03-07-2019, 05:45 PM   #2
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I have a 4 ton floor jack and jack stands. Can I safely use this to jack up one axle at a time to check the brakes and bearings on my 3570 Voltage? I really don't want to go out and buy a large bottle jack if I do not need to. I also think the floor jack is more stable and the jack stands better, although I am unsure of the weight on each axle. But, here is my calculations. My unit is about 26000 pounds fully loaded. If I split that between the three axles it comes to about 8700 pounds per axle and then about 4350 per tire. It appears the floor jack and jack stands should be plenty big enough. Even though these are rudimentary calculations, I would seem to be plenty ok with 8000lb. floor jack and jack stands. Right?
That's a pretty light bottle jack but it should lift one wheel at a time.

I don't think you need jack stands and all that. Just put the bottle jack under the U bolts on the axle close to the wheel and a couple of pumps on the jack and your tire is a inch off the ground. It's all you need to do the bearings brakes one wheel at a time. Your not lifting the entire trailer, your only compressing the suspension a little til the wheel comes off the ground.

But some day you may have to lift the trailer off the ground. You can get a 20 ton LOW bottle jack at Harbor Freight for under $30 with a coupon.
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Old 03-07-2019, 08:04 PM   #3
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That's a pretty light bottle jack but it should lift one wheel at a time.

I don't think you need jack stands and all that. Just put the bottle jack under the U bolts on the axle close to the wheel and a couple of pumps on the jack and your tire is a inch off the ground. It's all you need to do the bearings brakes one wheel at a time. Your not lifting the entire trailer, your only compressing the suspension a little til the wheel comes off the ground.

But some day you may have to lift the trailer off the ground. You can get a 20 ton LOW bottle jack at Harbor Freight for under $30 with a coupon.
I would get nowhere near it letting it set on the jack,, please use the stands. I jacked up a truck one time got it up fine,, walked across garage to get a jack stand ,, and boom,, a seal blew out of the jack and truck came down in a big hurry,,, be safe it only takes a couple seconds to put a jack stand under it
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Old 03-07-2019, 08:58 PM   #4
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I would get nowhere near it letting it set on the jack,, please use the stands. I jacked up a truck one time got it up fine,, walked across garage to get a jack stand ,, and boom,, a seal blew out of the jack and truck came down in a big hurry,,, be safe it only takes a couple seconds to put a jack stand under it
If I was jacking up a truck I would agree. But lifting one wheel at a time of a 6 wheel trailer. Were talking just enough to get the tire off the ground. Once the wheel is removed even if the jack did fail it would only allow the axle to drop to the limit of the suspension, probably 5 or 6 inches. It wouldn't crash to the ground or anything like that. There is really no reason to use a jack stand it this situation, but if you feel more comfortable sticking a jack stand under the frame go ahead.
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Old 03-09-2019, 04:09 PM   #5
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Dutchmen owners manual

My Dutchmen owner’s manual states that at 12,000 lb bottle jack and Two 12,000 jack stands should be used on the frame rail, not the axle. States that wood should be used both above and below the bottle jack to adjust height and protect the I beam.

My unit would be at 9500 fully loaded
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Old 03-09-2019, 04:34 PM   #6
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My Dutchmen owner’s manual states that at 12,000 lb bottle jack and Two 12,000 jack stands should be used on the frame rail, not the axle. States that wood should be used both above and below the bottle jack to adjust height and protect the I beam.

My unit would be at 9500 fully loaded
That would be good advise if your were planning on lifting all the wheels on one side at the same time. Not needed if your only removing one wheel to inspect or grease bearings. A bottle jack under the U clamps near the tire. Your only jacking enough to get the tire off the ground. The suspension will compress, I doubt if the frame rail will even move.
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Old 03-10-2019, 01:17 AM   #7
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No
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That would be good advise if your were planning on lifting all the wheels on one side at the same time. Not needed if your only removing one wheel to inspect or grease bearings. A bottle jack under the U clamps near the tire. Your only jacking enough to get the tire off the ground. The suspension will compress, I doubt if the frame rail will even move.
It’s not advice, it is the manufacturer telling you how to change a tire on their product. They specifically say NOT to jack on an axle to prevent damage. They specifically tell what tools to use and how. For me, I don’t understand why anyone would do it any other way. But I am learning that reading the manual and following directions Or presenting these facts Will result in an argument for some folks in the RV world.

If you want to go against the manufacturers advice, it’s your RV
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Old 03-10-2019, 01:44 AM   #8
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Originally Posted by Rhoadzie View Post
I have a 4 ton floor jack and jack stands. Can I safely use this to jack up one axle at a time to check the brakes and bearings on my 3570 Voltage? I really don't want to go out and buy a large bottle jack if I do not need to. I also think the floor jack is more stable and the jack stands better, although I am unsure of the weight on each axle. But, here is my calculations. My unit is about 26000 pounds fully loaded. If I split that between the three axles it comes to about 8700 pounds per axle and then about 4350 per tire. It appears the floor jack and jack stands should be plenty big enough. Even though these are rudimentary calculations, I would seem to be plenty ok with 8000lb. floor jack and jack stands. Right?
Redo your calculations. No way your 3570 is 26,000 pounds. My V3600 is 19,000 gross but it weighs 16,500 without any stuff in it. Even the heaviest Voltage has a gross weight of 20,000. so figure 16,500 pounds you'll have 5,500 pounds on each axle or 2750 per tire.
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Old 03-10-2019, 03:27 AM   #9
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Originally Posted by Beachbourbon View Post
No

It’s not advice, it is the manufacturer telling you how to change a tire on their product. They specifically say NOT to jack on an axle to prevent damage. They specifically tell what tools to use and how. For me, I don’t understand why anyone would do it any other way. But I am learning that reading the manual and following directions Or presenting these facts Will result in an argument for some folks in the RV world.

If you want to go against the manufacturers advice, it’s your RV
So if you have a flat on your six wheel trailer your going to get two bottle jacks several blocks of wood and jack all three tires off the ground, support the frame with jack stands to change one tire! Does that make sense?

For a visual, put a 2x4 on the ground, watch your trailer tires roll over the 2x4 and how the suspension flexes. This is all that will happen when you put your bottle jack under the U clamps and jack one tire off the ground just enough to clear the road.
But like you say it's your trailer..
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Old 03-10-2019, 03:33 AM   #10
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Jacking

If I am going to jack it up just high enough to get the wheel off, I still jack under the spring bracket, or I have just put the jack under the axle, which I know it says not too. If the manual says jack somewhere else it's up to the individual,, even if the axle can only drop a few i chest I still use a jack stand,,
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