removing boat from trailer to blocks

gtflash · 19 January 2016, 15:52

looking for ideas on how to remove trailer from under the boat for antifouling. Its an all at once job as copper coat. Thanks

PS 8m rib but no engine or tubes

jyasaki · 19 January 2016, 16:02

Couple of methods depending on equipment at hand:

1) Use a dedicated hoist.

2) Jack up and block rear of boat. Run winch strap through a carabiner tied to rear trailer crossmember and back to towing eye. Crank winch to move the trailer out from under boat (make sure the trailer is free to roll.) Block and jack the hull as required to get trailer free.

3) Jack up entire length of boat, remove trailer, jacking and moving blocks as necessary to clear crossmembers.

I'm sure there are other methods as well.

Pikey Dave · 19 January 2016, 16:07

Done it a few times. Fasten the boat to an immovable object using the transom towing eyes. I have a couple of eyebolts set into a concrete floor. Undo the securing straps off the boat/trailer/winch. Hitch the car on & slowly drive away, the boat will stay where it is. Drive a metre or so & chock the rear of the boat with blocks/carpet/tyres. Repeat until the boat is off the trailer & on the deck.

jwalker · 19 January 2016, 16:13

I've done it but I have a JCB. Lift the stern of the boat and drive the trailer out a meter or so. Chock the stern above trailer height then lift the front on a strop from the side
Drive the trailer out and chock the front of the boat clear of the ground.

I guess you could do it similarly but more precariously using two cars and some jacks.
Pull the boat back a little, lift it and chock it securely. Leave the car attached to the rear to prevent the boat moving forward and drive the trailer forward enough to get to lift and chock the bow.

Chris Caton · 19 January 2016, 16:19

I used the winch strap to pull the boat backwards off the trailer, rollers definitely helped!! with the trailer hooked up to the Land Rover so it didn't get shot out from under the boat, as the hull got to the point of balance I just reversed the trailer to get the hull where I wanted it, then out some rubber matting under the hull, it came off very slowly and under complete control, that was a 23ft Revenger with a Honda 150 fitted. it went back on just as easy

Chris · 19 January 2016, 17:40

Quote:

Originally Posted by gtflash

looking for ideas on how to remove trailer from under the boat for antifouling. Its an all at once job as copper coat. Thanks

PS 8m rib but no engine or tubes

Speak to Rogue Wave, they have lifting frames for just this at their new workshop in Itchin.

jeffstevens763@g · 19 January 2016, 18:23

:thumbs

Quote:

Originally Posted by Pikey Dave

Done it a few times. Fasten the boat to an immovable object using the transom towing eyes. I have a couple of eyebolts set into a concrete floor. Undo the securing straps off the boat/trailer/winch. Hitch the car on & slowly drive away, the boat will stay where it is. Drive a metre or so & chock the rear of the boat with blocks/carpet/tyres. Repeat until the boat is off the trailer & on the deck.

with dave on this done it before then let one tube down roll over onto it secure on its side to an anchor point, keep hose on it and blow up again to level up for ease to work on.

Fstarocka · 20 January 2016, 16:20

It wd help if the car move slowly down hill, that way you could roll it off the back, prop boat, lift nose and sneak trailer out.. Need some engineering though

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gtflash · 20 January 2016, 19:46

Thanks all for feedback. I am thinking about dropping jockey wheel to lift rear, wedge rear and jack back up. Then try and sneak trailer out as suggested.

If not I like he idea of dropping it off back of trailer, but can't work out how I would get it back on. Ideally I don't want it on the ground as it will make putting coppercoat on awkward

Pikey Dave · 20 January 2016, 19:59

Quote:

Originally Posted by gtflash

Thanks all for feedback. I am thinking about dropping jockey wheel to lift rear, wedge rear and jack back up. Then try and sneak trailer out as suggested.

If not I like he idea of dropping it off back of trailer, but can't work out how I would get it back on. Ideally I don't want it on the ground as it will make putting coppercoat on awkward

Getting it back on is easier than getting it off. Reverse the trailer up to the bow, un-hitch the trailer from the car, clip the winch on to the boat & start winding. The trailer will pull itself under the boat (assuming the boat is now re-attached to the aforesaid immovable object) & the boat will remain static. As the trailer draws itself under the boat, remove the blocks/tyres etc.
Simples👍

Uncle Nobby · 21 January 2016, 22:40

Chock it onto blocks, let the tyres down, gives you 2" of clearance.

Daniel · 21 January 2016, 23:01

Awesome tip

gtflash · 25 January 2016, 20:49

Quote:

Originally Posted by Uncle Nobby

Chock it onto blocks, let the tyres down, gives you 2" of clearance.

Definitely. Mucho gracias

willk · 25 January 2016, 21:17

Quote:

Originally Posted by gtflash

If not I like he idea of dropping it off back of trailer, but can't work out how I would get it back on. Ideally I don't want it on the ground as it will make putting coppercoat on awkward

I've done this very recently, 10m boat. Ideally you invoke the skills of a major boat builder along with their controlled environment. A pair of McLaughlin Skyhooks (forklifts) then strap up to the Bow eye and transom eyes and lift the rig off the trailer. Trailer is removed and coppercoating commences. Coppercoating is a dark art - make sure you have lots of help, time and small roller sleeves for the chines. Trust me....

Ron Noco · 25 January 2016, 21:34

Be careful, don't underestimate the dead weight of these yokes if it all goes tits up... My boat is only 250kg-ish plus 90kg motor and I had to jack it up to replace a robbed roller, kinda scary working under it, there's not much to grip

Good luck

Mobile

Rogue Wave · 12 February 2016, 20:41

have you done this yet.? if not I will come over and give you a hand if you wish or you are welcome to use our workshop and lifting gear free of charge as I think i owe you a favour

Barrowboy · 12 February 2016, 21:02

Quote:

Originally Posted by Uncle Nobby

Chock it onto blocks, let the tyres down, gives you 2" of clearance.

Hmmmmmmmm, great idea but think I might struggle with that!

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Erin · 13 February 2016, 21:05

Quote:

Originally Posted by Uncle Nobby

Chock it onto blocks, let the tyres down, gives you 2" of clearance.

Nup, not sure that would work. As soon as the load is off the trailer the relieved suspension will raise the trailer. My trailer sits something like 6" higher when unloaded.

treerat · 14 February 2016, 07:27

We've taken the dive boat off a couple if Times. As others have said we secured the rear and gently drove forward with a coupe of people propping bales under as we went forward.

Jacking the trailer up, propping the hull, then lowering and repeat on other side should work too.

But with an offer of propper kit, I'd go that way.

cardo · 14 February 2016, 14:23

Ive done this a couple of times with my old sports cruiser, weighed 2 tonne ish as well.
I used adjustable boat stands. lifted the boat off the trailer and pulled the trailer from underneath.