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Old 09-02-2013, 06:17 PM   #15
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mel; of course you know there's a big difference between a coach setting on jack like yours was while being worked on and one setting on jack with the rear tires off the ground a people walking around inside rocking and shifting the coach right?
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Old 09-02-2013, 07:29 PM   #16
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Quote:
Originally Posted by D Lindy View Post
mel; of course you know there's a big difference between a coach setting on jack yours was while being worked on and one setting on jack with the rear tires off the ground a people walking around inside rocking and shifting the coach right?
D Lindy
Of course I do!

Any body knows that coach standing on three leveling jacks....with all 6 wheels and tires OFF.... (and someone working on it)...... HAS OVER 10" FARTHER TO FALL before it hits the ground!
Mel
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Old 09-02-2013, 08:31 PM   #17
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I have a dynasty that has a power slide gen and there is room in front of the gen to carry six 2x12s in 3 2.5 and 2' length. I am all air level so I know nothing about power jacks from about three rigs back. If i have the poor luck to have to park on non level like at fmca in Gillette I just put the block in staggered stack and back up onto them. I have found it stinks to try to raise the front unless you carry a step ladder to get in and out.
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Old 09-03-2013, 03:18 PM   #18
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Ray,IN; I hope you carry wood planks for under the rear wheels if you get a site that's sloped to the rear. The LAST thing you want to do is take the weight off the rear tires on a site sloped to the rear. There is a real chance that the MH will shift and damage the jacks if you take the weight off the rear wheels. They have the only brake holding the unit in place.
OK, I submit. That is sound reasoning and advice. I carry a large aluminum HDT wheel chock for such instances, or if the engine fails on a steep grade.
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Old 09-03-2013, 04:12 PM   #19
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With my 5th wheel all I ever required was 2 2x8 boards long enough to span the double wheels and 2 4x4 blocks for the front legs.
Now with Class A with auto level pads I need to carry a trailer full of lumber??????
What have I gotten into? This was supposed to be easier. Why can't manufacturer install 12x12 pads on the hydr levelers
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Old 09-03-2013, 04:26 PM   #20
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With my 5th wheel all I ever required was 2 2x8 boards long enough to span the double wheels and 2 4x4 blocks for the front legs.
Now with Class A with auto level pads I need to carry a trailer full of lumber??????
What have I gotten into? This was supposed to be easier. Why can't manufacturer install 12x12 pads on the hydr levelers

We made the switch last April, from a 40' 5er to a 40' MH. That is why I balked at carrying a compartment full of planks.
I seriously doubt I'll carry more than 4 planks though. Last year we went to Alaska, moved every day until we arrived somewhere we spent 3-4 days at most. Not once did I see any of the MH's in a space where the rear was too low for the jacks to be used safely.
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Old 09-03-2013, 04:56 PM   #21
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I'll use wood ramps I made only if I can't level with just the levellers.
I'll put this out there for response. On my dual rears my ramps only support 1 set , I think I should support the inner tires and let the outers hang.MY reasoning is the inners are closer to the hubs and if I support the outers there would be extra stress on the studs.
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Old 09-03-2013, 04:57 PM   #22
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With my 5th wheel all I ever required was 2 2x8 boards long enough to span the double wheels and 2 4x4 blocks for the front legs.
Now with Class A with auto level pads I need to carry a trailer full of lumber??????
What have I gotten into? This was supposed to be easier. Why can't manufacturer install 12x12 pads on the hydr levelers
Better yet "Why can't parks make their sites close to level"!
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Old 09-03-2013, 06:07 PM   #23
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I'll use wood ramps I made only if I can't level with just the levellers.
I'll put this out there for response. On my dual rears my ramps only support 1 set , I think I should support the inner tires and let the outers hang.MY reasoning is the inners are closer to the hubs and if I support the outers there would be extra stress on the studs.
rlott2k
If I understand your question correctly, the answer is:
Both duals of a pair should be raised equally.....(and if ramps are needed/used on both sets of duals, all 4 tires should be on boards).

If you let any one tire/wheel hang, the weight on the wheel studs will NOT be a problem (since the studs always carry ALL of the weight of that rear/side of the coach).

However, the hanging tire will carry NONE of the weight of the coach.... and the tire on the boards WILL BE overloaded, (thereby causing unseen damage to the tire casing)!
That damage can/will eventually lead to tire failure.

(If I misunderstood your question please disregard this message).
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Old 09-03-2013, 07:00 PM   #24
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rlott2k
If I understand your question correctly, the answer is:
Both duals of a pair should be raised equally.....(and if ramps are needed/used on both sets of duals, all 4 tires should be on boards).

If you let any one tire/wheel hang, the weight on the wheel studs will NOT be a problem (since the studs always carry ALL of the weight of that rear/side of the coach).

However, the hanging tire will carry NONE of the weight of the coach.... and the tire on the boards WILL BE overloaded, (thereby causing unseen damage to the tire casing)!
That damage can/will eventually lead to tire failure.

(If I misunderstood your question please disregard this message).
Mel
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Nope you nailed it. While I was worried about stud stress , I forgot about double load on tires!
Thanks.
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Old 09-03-2013, 07:32 PM   #25
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Quote:
Originally Posted by mel stuplich View Post
rlott2k
If I understand your question correctly, the answer is:
Both duals of a pair should be raised equally.....(and if ramps are needed/used on both sets of duals, all 4 tires should be on boards).

If you let any one tire/wheel hang, the weight on the wheel studs will NOT be a problem (since the studs always carry ALL of the weight of that rear/side of the coach).

However, the hanging tire will carry NONE of the weight of the coach.... and the tire on the boards WILL BE overloaded, (thereby causing unseen damage to the tire casing)!
That damage can/will eventually lead to tire failure.

(If I misunderstood your question please disregard this message).
Mel
'96 Safari
Good point - it should also be mentioned that the wood block should be WIDER than the tire. If it is narrower than the tire you will be putting extra stress on the tread and sidewalls as the tread tries to fold itself down over the edges of the board.
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Old 09-03-2013, 10:05 PM   #26
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I recently had a site where I had my HWH levelers bring my rig level, ending with the rear curbside wheels, including tag, completely off the ground. The street side wheels were on the ground. Is this a problem?
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Old 09-03-2013, 10:06 PM   #27
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Ray,IN; I hope you carry wood planks for under the rear wheels if you get a site that's sloped to the rear. The LAST thing you want to do is take the weight off the rear tires on a site sloped to the rear. There is a real chance that the MH will shift and damage the jacks if you take the weight off the rear wheels. They have the only brake holding the unit in place.
I am not disagreeing with you I am curious if anyone has ever seen that happen. you have 4 jacks with about a 1sq ft surface area pushing down with in my case 38,000 pounds of force distributed over the 4 jacks. Do they actually slide if on a hill ?
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Old 09-03-2013, 10:57 PM   #28
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I think the likelihood of overcoming the coefficient of friction between the ground and the jack plate is extremely unlikely unless you are parking in San Francisco.
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