Heavy Lifting - of 33 foot boat for bottom painting

[smokeonthewater]

Re: Heavy Lifting - of 33 foot boat for bottom painting

that sounds WAY scarier than just cranking up the side stands a couple inches

 

[RotaryRacer]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Just crank up the stands. Get a 2' pipe on the end of the handle and start cranking. Go up a bit on one side then go over to the other and go up the same amount. It should be really easy to turn the handles with a 2' lever with only that much weight on each stand. If it isn't spray a little WD40 on the screw threads. You're actually better off with a nice short handle so you aren't able to make abrupt sudden moves. Do things slow and easy and it will be easy.

 

[tpenfield]

Re: Heavy Lifting - of 33 foot boat for bottom painting

The thing that I am concerned about is overloading the stands . . . I have been unable to find a capacity limit, but the Brownell web site indicates not to lift a boat by the stands. Each stand would probably have 3,000 lbs at the most, so perhaps I could do it that way. Maybe I can pick up another set of stands just to make things easier . . .

 

[RotaryRacer]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Brownell says that their stands have been independently tested to support 30,000 lbs!!

It is right on the FAQ page linked above.

The reason they don't want you to support the boat by just the stands is simply b/c for extended periods it isn't a good idea. If the ground shifts or for some reason things become unstable the boat could fall. Having the keel supported and holding most of the weight is far more stable.

For a short term lift just to move the keel blocks it will be fine.

 

[25thmustang]

Re: Heavy Lifting - of 33 foot boat for bottom painting

I've used stands to lift boats before.

I have also used large jacks under the keel. Your lifting the boat for such a short length of time, I think you would be okay cranking the stands up, moving the keel block and the back down.

 

[Thalasso]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Just put the boat back on the trailer and do those spots.

 

[tpenfield]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Just put the boat back on the trailer and do those spots.

No trailer . .. I use a boat hauler . . . everything has to be done and dry when he arrives.

 

[smokeonthewater]

Re: Heavy Lifting - of 33 foot boat for bottom painting

T, the screws used in those stands are THE SAME screw used inside semi trailer jacks, the legs on the front of a 53' van... they WILL hold way way way more weight than your whole boat balanced on just one.

 

[tpenfield]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Brownell says that their stands have been independently tested to support 30,000 lbs!!

It is right on the FAQ page linked above.

The reason they don't want you to support the boat by just the stands is simply b/c for extended periods it isn't a good idea. If the ground shifts or for some reason things become unstable the boat could fall. Having the keel supported and holding most of the weight is far more stable.

For a short term lift just to move the keel blocks it will be fine.

I've used stands to lift boats before.

I have also used large jacks under the keel. Your lifting the boat for such a short length of time, I think you would be okay cranking the stands up, moving the keel block and the back down.

Thanks for the comments and ideas . . . The Brownell site seems vague (to me) about the 30K lb capability . . . it is not specific to any particular type of stand, but probably more related to their heavy duty keel stand. somehow, I don't see the regular "MB" model stand holding 30K lbs . . . the 4 legs of the stands are not even fully tied together in a cross or box pattern.

Anyway, it looks like I may be able to snag a set of 4 stands tonight, giving me a total of 8 stands to work with. I should be able to lift the boat with 4 stands (2 each side) at the stern to move the blocks, set it back down; then do the same thing at the bow.

 

[smokeonthewater]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Quoted from Brownell's website.... in the FAQ page I posted above:

How much weight do your boat stands hold?

Boat stands are designed as a balancing device. The weight of the boat rests on its keel and is supported by keel stands, keel benches or blocking. However, our stands have been independently tested and still function even under a 30,000lb. / 13,600kg load.

 

[airdvr1227]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Even though I've made thousands of jumps from airplanes I cannot bring myself to even imagine crawling under a boat supported that way.

 

[RotaryRacer]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Quite frankly the strength of the stand is NOT the thing to be concerned about. The placement of the stands is more critical. Whether you have 4 stands or 2, if they are positioned at a point of the hull that is not strong you could have issues. Again, your boat is very light for a typcal 33 footer. If you place the 2 rear stands close to the transom and the 2 front stands at a bulk head, the stands should be able to support the boat for the period of time required to reposition the keel blocks. This is assuming the stands are well supported on solid ground and they are hooked together with chains.

 

[MarkSee]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Hope I'm not repeating something but don't remember seeing it.

Is there something about the height the boat is at now where it couldn't be an inch or so lower?
Can you get more wood but instead of the last piece of the stack being say 4 x 4, it is 4 x 3?

What I am wondering if it would work is that instead of moving the existing stacks of wood, you have another set in place just an inch lower so all you need to do is raise the boat slightly with the stands, quickly knock away one or more level of the existing wood stack, then just lower the stand back down on the close-by but slightly shorter stack?

That way you're not having to worry as much about raising the boat with the stands just barely enough to take the weight off the current stack of wood.

Mark

 

[tpenfield]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Hope I'm not repeating something but don't remember seeing it.

Is there something about the height the boat is at now where it couldn't be an inch or so lower?
Can you get more wood but instead of the last piece of the stack being say 4 x 4, it is 4 x 3?

What I am wondering if it would work is that instead of moving the existing stacks of wood, you have another set in place just an inch lower so all you need to do is raise the boat slightly with the stands, quickly knock away one or more level of the existing wood stack, then just lower the stand back down on the close-by but slightly shorter stack?

That way you're not having to worry as much about raising the boat with the stands just barely enough to take the weight off the current stack of wood.

Mark

The blocks are 6" x 6" (16" long) . . . the game plan is to build another stack (4 layers) just in front of current stack at the rear. Since the boat is currently nose up, the 'new' stack will just fit under the keel. Then it is a matter of a slight raise of the stern, removal of the top layer from the original stack, and then slight lower of the stern onto the 'new' stack. The boat will end up about 1/4" lower than it was. Same process for the front stack, but I will have to raise the boat a bit more as the forward stack has to behind the existing stack rather than in front of it . . .

Hopefully everything will go smoothly with picking up the extra boat stands tonight. . . and I was just thinking. . . I'll have 8 stands at that point, and supposedly each one can hold up to 30,000 lbs . . . so that is 240,000 lbs total . . . I could lift up the house

 

[tpenfield]

Re: Heavy Lifting - of 33 foot boat for bottom painting

Even though I've made thousands of jumps from airplanes I cannot bring myself to even imagine crawling under a boat supported that way.

No plans to be underneath the boat without it securely resting on a set of blocks . . . I have only been under there a few times, and it is not all that comfortable anyway . . .

I'll set the alternate stack of blocks before I do the lifting and then be able to pull the top layer off the desired stack with a quick reach.

 

[smokeonthewater]

Re: Heavy Lifting - of 33 foot boat for bottom painting

"a quick reach"

or better yet shove the top couple off with a 2x4 from the side

 

[25thmustang]

Re: Heavy Lifting - of 33 foot boat for bottom painting

All suggestions I was going to make. Even blocked well being under a boat can be tense.

 

[tpenfield]

Re: Heavy Lifting - of 33 foot boat for bottom painting

I got the extra boat stands tonight . . . so I should be able to lift the boat with decent stability.

 

[MarkSee]

Re: Heavy Lifting - of 33 foot boat for bottom painting

The blocks are 6" x 6" (16" long) . . . the game plan is to build another stack (4 layers) just in front of current stack at the rear. Since the boat is currently nose up, the 'new' stack will just fit under the keel. Then it is a matter of a slight raise of the stern, removal of the top layer from the original stack, and then slight lower of the stern onto the 'new' stack. The boat will end up about 1/4" lower than it was. Same process for the front stack, but I will have to raise the boat a bit more as the forward stack has to behind the existing stack rather than in front of it . . .

Hopefully everything will go smoothly with picking up the extra boat stands tonight. . . and I was just thinking. . . I'll have 8 stands at that point, and supposedly each one can hold up to 30,000 lbs . . . so that is 240,000 lbs total . . . I could lift up the house

Like I could tell Ted from the picture they were 6 x 6 and not 4 x 4 or 8 x 8? Killin' me Ted.......but isn't what you're planning on doing basically what I was suggesting?

Mark

 

[frantically relaxing]

Re: Heavy Lifting - of 33 foot boat for bottom painting

weight capacity-- a Campbells Soup can can support an enormous amount of weight- right up until the weight becomes an ounce or so out of balance...

Everyone else has offered just about every idea available, so....