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Removal of drop down bed to repair rot


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Hello internet,

Please can I have some ideas on the removal of a very heavy drop down motorhome bed? The bed is screwed either side into the wall panel and the moving hinges are vinyl bushes. The image attached is one of these bushes. My plan is to attempt to split the bed down to a more managable size so it can be moved inside the van without having to do anything drastic such as take the front window out! 

Does this hinge come apart? Looking at it there seems to be some form vinyl bush slides over welded spike on the wall plate. 

Plan B was to use ratched straps x 2 to attempt to squeeze the frame sideways to allow wriggle room but I think this could damage the moving hinges/hinge arms.

Any pointers or alternative suggestions on how i can get the bed off the wall would be most gratefully received.

IMG-20240307-WA0006.thumb.jpeg.a7d099ec5b8ec5c84ae69d6cb2736f67.jpeg

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Hi, I think I have the same bed in my 966. Last year I had to replace one of the gas struts and to get the new one in had to drop the bed down. If I remember correctly the pivot bolt was removed and also one other bolt then the strut was detached. EXTREME care is needed around the strut, if it is under any pressure when released it can be lethal. I had to disassemble the bed to get the new strut on as it needed to be slightly compressed to get on without taking the bed apart 

Regards David 

TAKE GREAT CARE !!!!!

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Posted (edited)

Hi David,
Thanks for your message. How did you disassemble the bed please? Did you do this in-situ? I note your warning about the strut. I have managed to reduce the strut length and tension by removing the dampener bolt which limits the pivot. If I can split the frame apart from the pivot hinges (shown in the image) then I will be well into the job. Thanks in advance Jamie

Edited by headscratching_draig
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Hi, I didn’t have to take the bed apart, just take out the two bolts to get enough length to fit the strut. It was a year ago so memory fades but I think if the two bolts and the strut on each side are removed the bed could be removed . It is heavy and awkward so I think it’s at least a two man job. You could always pm me your phone number and we could talk about it 

Regards David 

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Posted (edited)

The leak was coming from above the passenger door and the nearside window. This has then tracked upward. As the rot has become worse so the weight of the bed pulls inwards. This then makes sealing the window/door futile.

We plan on removing the driver side inner window frame covers today to allow more room to move the frame at an angle and thus move it. 

We are also going to remove the thermal blinds and tracking to prevent damage.

I can report back that I have removed the struts and linkage bar with relative ease.

I will document the whole removal and repair process for others.

 

Edited by headscratching_draig
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Hi 

As you have removed the struts safely and locking bar and it looks like your determined to go ahead with removal , Make up an "expansion bar" from wood and spread the two walls slightly over the bed  (as you would do when repairing a bodyshell of a car) Put short 4"x2" on each side of the walls to spread the load and to prevent damage to the walls on each side of the spreader beam timber or timbers  Take careful measurements and don't overdo it. I am sorry i have not got the exact measurements to hand  Undo bed completely and with the aid of a helper remove the unit with the spreader timber beam in place  Be careful as it's heavy.  

Regards

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The intention is to leave the door and window well alone and repair above. This will be from the white box above down and across to the right above the window and door. 

Advice on the board to replace would be helpful. If we cannot find a premade insulation board then we intend to use 3mm marine ply with an insulation sandwiched between.

20240309_131524.jpg

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Hi

OK , Try always to replace like with like if possible and the best quality you can get for the repair.

I am sorry I cannot advise who in your area may have the materials you need , but I am sure some of the coachbuilders in your area may be able to advise if you are unsure

Regards  

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Ok it is possible to do! 

3 able people. Utilising the top seatbelt clip to take the weight and 3" x 2" timber to support the middle. 

Once the side screws holding the frame forward are taken out the whole bed frame can be rotated forward. Then held in place resting on dashboard by another supporting 3 x 2. Huge progress.

Note the paper over the end panel bracket to prevent damage

20240309_145827.jpg

20240309_145819.jpg

20240309_144831.jpg

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Hi 

Well done Just be very careful you take all measurements across , Be very careful to use the same thickness of board on the wall if possible ,for easy refitting of the bed unit 

The use of a small four wheeled hydraulic floor jack under the raising and lowering support post will greatly help in re positioning the unit  

Regards

Edited by onecal
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The rot has tracked upwards from the window. There is a thin veneer of ply left on the aluminium external side. We will use wood hardener on this and then fill the internal space with marine ply. Interestingly this section of the van was ply and not insulated which surprises me for an A Class MH. 

Externally has been sealed with Sika. Will now use directed fan heat and dehumidifier to dry out any further internal dampness.

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Hi 

A lot of the bed area's are not in overhead walls , Important to use same thickness of board in that area Otherwise serious modifications would needed to be made to the bed unit 

Regards

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2 hours ago, onecal said:

Hi 

Well done Just be very careful you take all measurements across , Be very careful to use the same thickness of board on the wall if possible ,for easy refitting of the bed unit 

The use of a small four wheeled hydraulic floor jack under the raising and lowering support post will greatly help in re positioning the unit  

Regards

Good idea on the trolley jack. I might end up building a platform in the cab to jack from so we can take the weight of the frame.  Noted on panel thickness. Will probably sand back a thicker board to correct depth and then bond to wood hardened layer.

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18 minutes ago, onecal said:

Hi 

A lot of the bed area's are not in overhead walls , Important to use same thickness of board in that area Otherwise serious modifications would needed to be made to the bed unit 

Regards

Surprising. One would think an A Class is winterised. We could take this opportunity of adding a thermal layer to the fiberglass cab area.

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Hi 

Again be very careful of your measurements as I have mentioned earlier . No need for a platform Just use a timber prop 3x3 (or as you are using 3x2)Wide flat board under the bed unit and wide flat board on the floor under the wheels of the floor jack 

Regards

Edited by onecal
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