question for Hydro hoist users
#1
Ginger or Mary Ann?
Charter Member
Thread Starter
question for Hydro hoist users
Got my lift installed and all adjusted. Works great, except for the loading part.
When the lift is submerged and boat is positioned over it to be raised, I can only open both valves slightly to fill with air once it starts raising. Otherwise, If I open the valves fully, the lift comes FLYING at mach1 speeds up to the surface until it makes contact with the boat bottom. Kaboom!
Is this just the nature of the beast and we have to just crack the valves to slowly raise the tanks up from the lowered postion??
Thanks, and my boat bottom thanks you!
When the lift is submerged and boat is positioned over it to be raised, I can only open both valves slightly to fill with air once it starts raising. Otherwise, If I open the valves fully, the lift comes FLYING at mach1 speeds up to the surface until it makes contact with the boat bottom. Kaboom!
Is this just the nature of the beast and we have to just crack the valves to slowly raise the tanks up from the lowered postion??
Thanks, and my boat bottom thanks you!
#4
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Mine does the same thing, but my hoist is adjusted (with the chains) so it does not drop any further than necessary. So when it does come up it only moves a short distance until contact with bottom.
#5
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The trick is getting the chains properly adjusted and close the valves when the lift goes down. If you leave the valves open(and I'm guilty of that) there is a more violent initial lift than if you had closed the valves once the boat floats free.
#6
Ginger or Mary Ann?
Charter Member
Thread Starter
Actually mine is a Galva Lift. Same thing though, just not as well known.
I have the back in option. It drops lower to allow clearance for the drives. My swing arms are 7' in length which allows the highest bunk to be up to 5' under water level. My chains are set at 4' deep now. That raises( no pun intended) another conscern. Once it is lowered enough to float my boat, I also close the valves some to keep it from droppping to the chain stops. When it drops fast, it really bounces the dock down.
SO it appears that we need to just feather the valves when raising and lowering to keep the lift speed in check??
I have the back in option. It drops lower to allow clearance for the drives. My swing arms are 7' in length which allows the highest bunk to be up to 5' under water level. My chains are set at 4' deep now. That raises( no pun intended) another conscern. Once it is lowered enough to float my boat, I also close the valves some to keep it from droppping to the chain stops. When it drops fast, it really bounces the dock down.
SO it appears that we need to just feather the valves when raising and lowering to keep the lift speed in check??
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Some people are like Slinkies - Not really good for anything, but they
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Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.