Installing an outboard motor on a boat or removing it from a transom is always a physically demanding and technically risky procedure. Even relatively light four-strokes weighing 30-40 kilograms can cause back injuries or expensive equipment falling into the water when you try to lift them by hand. power-lift It is not just a convenient option, but a necessary safety element for any boater who values his health and equipment.
Modern solutions automate this process by turning a time-consuming operation into a single button on the control panel. The market offers many options, from compact winches for low-power engines to powerful electric systems for heavy units. In this article, we will discuss in detail how to choose the right model, calculate the necessary thrust and properly mount the device on your boat or PVC.
It is important to understand that there is no universal solution, as the design of the transom, the type of boat and the weight of the engine dictate their conditions. Traction winches They can be fixed on the bracket or be removable, portable, and regardless of the choice, the key to success will be the proper organization of the mounting points and the right choice of a cable or sling that can withstand dynamic loads.
Principles of operation and types of lifting devices
The basis of any electric lift is power-plateThe main difference between these devices and their automotive counterparts is corrosion protection and mounting specificity: the materials of the body must be resistant to salt water and ultraviolet light, and the design must allow rapid installation and dismantling.
There are two main types of devices that are used on water. motor-liftThese are the universal cargo winches that are mounted on board or on a special rack and lift the motor by the handle or through a system of blocks, depending on the frequency of use and the storage conditions of the vessel.
⚠️ Warning: Never use winches with plastic gears to lift heavy motors. When jerking or jamming, plastic may not withstand static loads, causing the engine to fall onto the deck or into the water.
The key is the power of the motor and the gear ratio of the gearbox. For motors up to 50 kg, devices with traction forces up to 500-700 kg are usually sufficient, but the safety margin should be twofold, which is necessary to compensate for inertia during rolling and prevent overheating of the mechanism at peak moments.
Criteria for the selection of equipment for different boats
When choosing a lifting mechanism, the weight of the motor, together with the lower unit and the operating leg, is paramount. However, you should not forget about the dimensions: a long leg requires a higher amplitude of lift or trajectory. For PVC boats, the overall weight of the equipment is critical, while for metal boats, the reliability of the mounting and the speed of lifting are more important.
Note the type of cable used: Synthetic rope (Dyneema) is preferred over steel rope, as it does not rust, injures hands during operation, and does not sink in water. Steel cable requires regular lubrication and checks for ragging, which in humid conditions becomes a constant problem.
Comparative table of specifications will help to determine the type of device:
| Type of device | Max. Engine weight. | Speed of ascent | Weight of the device |
|---|---|---|---|
| Compact winch | 40 kg | 2-3 m/min | 3-5 kg |
| Powerful winch 12B | 100 kg | 4-6 m/min | 8-12 kg |
| hydraulic jack plate | 300 kg | 1-2 m/min | 15-20 kg |
| Electrically powered manual winch | 60 kg | 1.5 m/min | 4-6 kg |
Also worth considering is the power supply. Most models run on an onboard 12 volt network, but there are battery options with an integrated battery. Autonomous systems It is convenient if the boat is stored without a battery installed, but they require regular recharging.
Necessary tools and preparation for installation
Installation of the lift requires careful preparation of the surface and the presence of a quality tool. First of all, you need to determine the location of the attachment. If it is a transom, make sure that its thickness and material (aluminum, fiberglass, wood) will withstand not only the weight of the engine, but also the dynamic force during lifting. For soft transmuters of PVC boats, you must install a hard pad or use additional reinforcing elements.
You will need the following tools and materials:
- 🛠️ A drill or screwdriver with a set was drilled on metal and wood.
- 🔩 Stainless fasteners (bolts M8-M10, nuts, Grover washers).
- 📏 Roulette, marker and level for accurate marking.
- 🔌 Cable with a cross section of at least 4-6 mm2 for power connection.
Pay special attention to sealing the holes. In places where the fastener passes through the side or trawler, you should use polyurethane sealant Water entering the structure of the boat through the mounting holes can lead to serious problems in operation.
☑️ Preparation for installation
Step-by-step instructions for installing the lift
The installation process begins with the marking. Apply the winch bracket to the selected location and mark the centers of the holes. It is important to observe symmetry so that the load is evenly distributed. If the design involves mounting on board, make sure that the overhang of the engine when lifting will not create a critical roll of the boat.
Drill holes with a diameter corresponding to the fastening bolts. For fiberglass boats, it is recommended to use a drill with a depth limiter to avoid damaging the inner lining. After drilling, treat the edges of the holes with an anti-corrosion compound.
Secure the base of the lift by smearing the contact surfaces with sealant. Tighten the nuts tightly using washers to increase the area of the pin, and at this stage it is important not to pull the fastener over so as not to deform the transom, especially if it is made of composite materials.
⚠️ Warning: When drilling a transom, be sure to use a safety rope for a drill. Falling a tool inside the boat hull or overboard can cause it to lose or damage the skin from the inside.
Then there's the electrical part connection, and you can put the battery cable to the winch, and you can make sure that the safety lock is in the plus wire at a distance of no more than 15 cm from the battery, and that will protect the wiring from fire in the event of a short circuit.
Nuances of reverse connection
If your winch doesn't have a built-in reverse, you'll need to install an additional switch or reverse relay. The connection circuit is simple: plus from the battery goes to the central contact of the tumbler, and the side contacts connect to the inputs of the winch engine, which will allow you to change the direction of rotation and lower the motor in a controlled manner.
Safety technique during operation
Using an electric lift makes life much easier, but it creates new risks. The rule is never to be under a hanging load. A motor mounted only on a cable is a pendulum that can get uncontrolled acceleration when a gust of wind or a boat rolls.
Check the condition of the cable or sling regularly, and scuffling, tearing fibers or traces of corrosion on the metal cord are a signal for immediate replacement. Load capacity The system is determined by its weakest element, which often becomes a cable or carbine.
When lifting the engine, try to keep the lower unit parallel to the transom to avoid hitting the side. You can use an additional delay or a second person who will hold the motor with his hand (with caution).
Lubricate the moving parts of the cable and the swab drum with silicone lubrication after each release to the water, which will prevent the mechanism from souring with salt and prolong the life of the device.
Maintenance and care of the mechanism
The aggressive aqueous environment does not spare the equipment, so the maintenance of the lift should be regular. After each operation in salt water, the device must be rinsed with fresh water, this applies not only to the external parts, but also to the cable, which can accumulate salt in its structure.
Once a season, it is recommended to carry out complete prevention: remove the cable, lubricate the gearbox, check the contacts of the electric circuit for oxidation. Pay special attention to the condition of the electric motor brushes, if the design of the winch allows their inspection.
Store the lift in the winter should be in a dry room removed from the boat. If you can not dismantle the device, be sure to cover it with a protective cover that allows air, but protects from direct precipitation and ultraviolet light.
Regular maintenance and washing with fresh water increase the service life of the lift by 2-3 times, preventing corrosion of internal mechanisms.
Which battery is best used for the lift?
The best way to power the winch is to use a traction battery (GEL or AGM) that also powers the boat's electric motor. However, make sure the battery capacity is sufficient to lift the engine without a critical voltage drop. Start-up batteries can quickly discharge when this load is applied.
Can I use a lift to lift the anchor?
Technically, if the load capacity permits, but the hook design and lift speed can be inconvenient for the anchor chain, and the sand and dirt from the anchor can get into the winch mechanism, which will accelerate wear.
What to do if the battery runs down during the lifting of the engine?
Most high-quality winches have manual operation (unlock the drum). In an emergency, you can switch the mechanism to manual mode and lower the engine by rotating the handle. In advance, read the instructions for your model to know where this switch is.
Do I need an automatic brake on the winch?
Yes, having an automatic brake or a worm gear that stops the drum when the engine stops is critical, and it will prevent the cable from unwinding spontaneously and the motor from falling in the event of a power outage or a control circuit break.