It sounds like the issue is that you are trying to push on the edge of the sleeve, which is incorrect. You must only push on the flange, never on the edge of the sleeve. No special tools needed.
You install the first sleeve with the flange side down, that is, the flange goes on first and you do not remove that flange. Again, you are pushing on the flange, not the edge. You then cut a notch in the flange of the second sleeve and then put it on again flange first, sliding it down so it is very close to the first one. Again, you only push on the flanges, not the edge of the sleeve. Finally, you take a pliers and remove the flange of the second sleeve (not the first sleeve). There will be a small gap between the two sleeves after you remove the flange - not a problem as no seals rub there.
Hope that helps,
Cheers, Craig, SN#68 Sangaris
---In amelyachtowners@..., <sonsev52@...> wrote :
I have reviewed the instructions. Instructions are not applicable for our case.