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Boat lift question?

Old 10-05-2020, 07:00 PM
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Default Boat lift question?

I have a deco 13k maxi boat lift for 3 years I used with no issues with a 31 yellowfin fully loaded about 9800lbs

Last weekend I purchased a used 340b seavee it shows dry weight 6500lbs, engines (twins) 550 each, I usually keep about 100 gallons of fuel (8lbs each) plus everything else I’ve gathered about 500lbs, it would still only be at 10,000lbs

When I went to put the lift up it got me about a 3rd of the way up and the starboard side lift just stopped spinning (it would go down but not up) I’m guessing the boat is too heavy for the lift?

Ive emailed deco but no response. I wasn’t sure if anyone’s ever had this issue. I called my lift builder and he’s like you probably need to move up to a 16k lift (of course with a hefty price and a 2 month lead time before they can start. I wasn’t sure if there was a way to strengthen my lift (belts, cables etc)

Appreciate any advice
Old 10-05-2020, 07:29 PM
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What type of lift drive do you have. It it is a flat plate lift, it may be that the belt on the pulley is slipping, and you may need a new belt...there may be a problem with the winder and cables....lots of issues. The Deco 13K lift should have no problem with a 10,000 # boat.
Old 10-06-2020, 07:40 AM
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I had a DECO lift that did the same thing. A gear in the direct drive unit failed. I don't know that DECO makes many lifts, if any, with plate drives, although that's my preferred drive mechanism. That sealed direct drive on my DECO was the only direct drive system on the 6 or 7 lifts I've owned over a period of 20 years, and it was the only drive mechanism that failed during that timeframe.
Old 10-06-2020, 09:36 AM
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call them 800-204-4178
Old 10-06-2020, 09:53 AM
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I have a Deco lift and this has happened before on 2 occasions. 1. the belts slipped as they were wet, it rained pretty hard that day and 2. Belts needed replacement, were loose.
Old 10-06-2020, 11:59 AM
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My 13k lift would do the same thing with my GW marlin. I would have to run one at a time working it up. I figured it was because we didn’t have enough electricity on the dock. It was a condo association
Old 10-06-2020, 12:07 PM
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OP, a photo or two and a better explanation of what you have in the way of lift equipment might help these guys assist you.
Old 10-06-2020, 12:17 PM
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I would lube it, twice, and replace the belts. I assume you're getting good 230V supply to the controller (check it while running). Are you sure about the weight of that boat?
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Old 10-06-2020, 01:46 PM
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As said before I would check the belts and grease it, that does wonders for our lift.
Old 10-06-2020, 01:50 PM
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may be out of balance. The lift if all is good should not have a problem even with a heavier boat.
Old 10-06-2020, 09:06 PM
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If it stopped spinning, its not a belt problem. If it spun but the belt slipped, its a belt problem. When was the last time you lubed the system? Could be fouled up gears, motor problem, or voltage issue.

My current lift is brand new, but on an older lift, I knew it was time to lube if it would hesitate or sometime stop going up. Especially if it would go up AFTER I went down for a second and then up again. If the belt slipped, you could tighten or replace it
Old 10-06-2020, 10:01 PM
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Originally Posted by Bigjosh92 View Post
I have a deco 13k maxi boat lift for 3 years I used with no issues with a 31 yellowfin fully loaded about 9800lbs

I usually keep about 100 gallons of fuel (8lbs each)
Gasoline is 6 lbs per gallon
Water is 8 lbs.
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Old 10-07-2020, 08:42 AM
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Originally Posted by SplashFL View Post
Gasoline is 6 lbs per gallon
Water is 8 lbs.
Everything I am finding says ABOUT, and no consensus seems to exist. Especially when different types of gas weigh different amounts. I think 8lbs is a safe number to use when calculating total weight.
Old 10-07-2020, 09:36 AM
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Originally Posted by DoorKicker View Post
Everything I am finding says ABOUT, and no consensus seems to exist. Especially when different types of gas weigh different amounts. I think 8lbs is a safe number to use when calculating total weight.
My smaller boat weighs a reported 6200 lbs. I put in a 16,000 lb. lift 2 years ago, as this is a case where more is better. I've seen a number of them collapse; maybe old pilings, cables, or too much rain water but for the small extra dollars I prefer to sleep at night.
Old 10-09-2020, 03:18 PM
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What kind of power do you have running out to the lift? The electrician I hired years ago to wire my 13k lift wired it up 110 volts. lift worked great when I had my small 23' flats boat but when I upgraded it to a 30' BW the the outside motor struggled to even move the boat up out of the water. When I called another electrician out there, he told me the mistake the previous guy made by wiring it 110 and I ended up having to re-run 220 volts from the house. After that, the lift worked perfectly. So it may be electrical? That or I agree that the belt might be slipping which means you will need a new motor belt. Had that happen once or twice.
Old 10-09-2020, 03:26 PM
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The lift should work with 120 or 220 if wired right. My guess is that since 120 will draw alot more amps. That your wire was not up to the task and that was the issue. There are a few advantages with 220 IMHO. But when wired properly it should have worked either way.

As to the OP. When the lift is not moving is it still making noise like something is happening, or does it just sound like dead silence. If it is making some noise, I would say check the belts like above posts. if it is silent, The Deco to look at it. Could be motor is fried.

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