LIFT CAPACITIES
It’s recommended that the total loaded weight of the water
craft doesn’t exceed 75 to 85% of the total lift capacity.
The total capacity of a lift is the combined capacity of each
of the boat lifts two main lifting beams.
Never exceed the weight capacity of either main lift beam.
For instance a 5,000 `lb capacity boat lift is limited to 2,500
lbs for each main lift beam. It is very easy for a 4,000 lb
boat to exceed the capacity of a 5,000 lb boat by not
parking on the lift in the correct position.
BEFORE PUTTING A BOAT ON THE LIFT YOU NEED
TO KNOW THREE VERY IMPORTANT THINGS:
1. Determine the total loaded boat weight?
Weigh your boat loaded with fuel, water and everything in
that you could ever have in it when it is parked on the boat
lift. Not all manufacturers published boat weights are
accurate because they don’t account for motors, gear, fuel,
water, etc.
2. Determine the boats center of gravity or CG?
A boat’s CG is the location under the boat hull which the
boat will balance if sitting on a narrow object. Your dealer
or the manufacturer of the boat should be able to help you
locate the boat’s CG. Be sure that the motor and gear
weight have been taken into consideration.
See Illustration A.
Illustration A: above shows the boat’s balance point of
center of gravity (CG).
3. The boat should be parked so that the boat’s CG or
balance point is centered between the two main lift beams.
See Illustration B.
Illustration B: shows the boats center of gravity (CG)
centered between the two main lift beams the fact that
each of the lift beams is supporting the same amount of
weight.
Once you know that your boat is well within the boat lifts
rated capacity and the location of the boat’s CG develop a
positioning method that will ensure that all users of the
boat lift will park with the Boat’s CG in the center of the lift.
Here are a couple of suggestions to do this consistently:
· Use a motor stop.
· Note the proper location of the boat on the lift
and use some sort of marking system or labels.
· If equipped with canopy, center the canopy over
the boat when the boat’s CG is in the center of
the lift, park with the boat centered under the
canopy.
· You can even hang an object such as a tennis
ball so it just touches the windshield when the
boat is properly positioned.
If your boat is not positioned properly, you can extremely
overload one of the main lifting beams. See Illustration C.
Illustration C: shows a boats center of gravity improperly
positioned so that it extremely overloads one of the main
lifting beams.
Never exceed the lift’s rated capacity. Doing so
could cause structural/mechanical failure and
serious injury or death.
WARNING
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