Operation of small-sized vessel on water transport is inextricably linked with its regular transportation to the place of launching, and reliability. boat-trailer It's critical to safety on long journeys, and it's a good spare wheel that, if it's punctured, will allow you to move quickly without having to call expensive evacuation equipment, but just buying a wheel is only half the solution, because it needs to be properly and reliably fixed on the trailer design so that it doesn't shift along the track or damage the side of the boat.
Wrongly organized stock-keeping The trailer can cause serious problems, from vibration and noise transmitted to the body of the car, to the loss of a wheel at high speed or damage to the hydroboard of the vessel. There are several proven ways of placement, each of which has its own advantages and limitations, depending on the type of frame, the size of the boat and personal preferences of the owner. In this article, we will analyze all the nuances of the installation, choose the optimal location and consider the necessary tools for installation.
Before you start drilling holes or buying brackets, you need to conduct a thorough audit of the existing equipment and assess the geometry of your trailer. universal solution There is no such thing, and what is perfect for your garage neighbor may not be acceptable for your boat and trailer configuration, and a good planning approach will avoid errors and ensure the longevity of the entire structure.
Choosing the optimal place to place a spare
The first and most important step is to determine the anchorage point, which must meet the safety requirements and not interfere with the operation of the boat. Most owners consider three main options: on the breather, on board the frame or in a vertical position under the boat. breather (front of trailer) is considered classic, as it provides better weighting and does not contact the sides of the boat, but can interfere with access to the winch or stop lights of the car.
If the size of the boat allows, many prefer to attach the wheel to the side element of the frame, which frees up the front part and makes it easier to access the mechanisms. dumper-layerVertical installation under the keel is only possible on trailers with sufficient clearance and requires the use of special lowered brackets, which complicates the design.
⚠️ Warning: Never place the spare wheel directly above the car exhaust pipe or in an area where heating from the trailer brakes is possible, as this can cause rubber damage or even fire.
When choosing a place, you should also consider the angle of departure of the wheel, so that it does not go beyond the dimensions of the trailer and does not create problems when driving in dense flow. If you plan to keep the boat on the trailer for a long time, make sure that the chosen place will not prevent air from accessing the hull, which is important to prevent condensation.
Necessary tools and materials for installation
To properly install the bracket or holder, you will need to prepare a certain set of tools without which it is impossible to perform the work reliably. grinder (Bulgar) with metal discs for cutting a profile pipe or corner, if you make the mount yourself, also be sure to have a powerful drill or drilling machine with a set of drills on metal, including large-diameter drills for mounting bolts.
In addition to power tools, you'll need a tape measurer, a coal miner and a metal marker to accurately mark the drilling locations. Don't forget to use protective equipment such as glasses and gloves, because metal requires sharp chips and dust. To fix the elements, you'll need a wrench or head of the appropriate size, and a dynamometer key to control the puffing force.
- 🛠️ A corner grinding machine with cut-off and sweeping discs.
- 🛠️ An electric drill or a drilling machine with a set of drills.
- 🛠️ Measuring tool: roulette, coal mine, core.
- 🛠️ Fixing elements: bolts, nuts, washers (strength class not lower than 8.8).
Special attention should be paid to consumables, in particular, anti-corrosion compounds. Since the trailer is in constant contact with water, all cuts and new holes must be treated. zinc-containing Or galvanize it with cold galvanizing, and then coat it with enamel, and using conventional ferrous metal without protection will lead to rapid rust in the first season.
Use bolts with a turnkey head, not under a hexagon, if you plan to remove the wheel often - it is easier to unscrew them with dirty hands on the shore of the reservoir.
Manufacture and installation of the bracket DIY
If the trailer is not available or is not suitable, the most reliable solution is to make an individual bracket. This uses a rectangular or square sectional tube, the wall thickness of which must be at least 2 mm to withstand the weight of the wheel and dynamic loads. The design is usually an U-shaped frame or console that is welded or screwed to the frame power element.
The process begins with precise measurements and a life-size drawing, after which the pipe is cut into size with welding allowances, the joints of the elements are carefully cleaned, degreased and welded with a solid seam, after which the slag is removed and the seam is cleaned with a Bulgarian, the finished structure is tried on on the trailer, checking the density of the fit and the absence of distortion.
☑️ Algorithm of bracket installation
To attach the wheel itself to the bracket, a stud run through the center of the disc or a belt system is often used, unless the disc is intended to be removed frequently. If you use the stud, make sure it has the appropriate thread and length, and is equipped with a nut with a fixing element, such as a grover or a self-contacting nut. All connections should be tightened with the force recommended by the fastener manufacturer.
Features of frame attachment
The design of the boat trailer can vary significantly depending on the manufacturer and type of boat, which dictates its conditions for the installation of the holder. aluminum-fibre Welding is strictly prohibited, so only bolt joints or special clamping clamps covering the profile are used here. Aluminum requires caution when drilling to avoid deforming the thin walls of the profile, and the installation of rubber gaskets between metals is mandatory to prevent electrochemical corrosion.
Steel frames allow welding, which makes the structure monolithic and very reliable, but require perfect corrosion-resistant welding. If the frame has a complex geometry with many crossbars, the mount is often placed on one of the longitudinal beams, shifting it closer to the center of mass of the trailer. In some cases, especially on trailers for inflatable PVC boats, the wheel is attached directly to the transom board or a special crossbar if it is strong enough.
| Type of frame | Mounting method | Risk of corrosion | Difficulty of installation |
|---|---|---|---|
| Steel (profile) | Welding/Bolts | Tall (painting needed) | Medium |
| aluminum | Bolts/Chomuts | Electrochemical | High (needs care) |
| Galvanized steel | Bolts (welding disrupts zinc) | Medium (drilling) | Medium |
It is important to note that on trailers with hydraulic brake (reversing) the unlock lever must be left in the wheel area, and the closure of important maintenance points can create serious problems in an emergency on the road.
Protection against vibration and damage during transportation
Road vibrations are the main enemy of any trailer attachment, so the issue of damping should be given special attention. rubber-layer Or a piece of transporter tape that prevents the paint and metal from being erased, and also reduces the noise, and if the wheel is hanging, it will quickly unwind any, even the most reliable connections.
The wheels are often fixed not only by a central nut, but also by additional safety features, such as a chain or cable, which is thrown over the tread and fixed to the frame. This is especially true when driving on off-road or bad roads, where the impact loads may exceed the estimated. Regularly check the tension of such locks before each exit.
⚠️ Note: The use of only one belt for fixing the wheel without a rigid central attachment is allowed only at short distances and low speeds; for the track, rigid disk fixation is required.
If you are using a tire assembly, make sure that the pressure is normal, as a pumped or deflated tire can behave unpredictably when vibrating. During the winter storage period, it is recommended to reduce the pressure or hang the wheel to prevent the rubber from deforming for a long time from contacting one point under the weight of the wheel itself.
How do you protect the carvings from souring?
To prevent threaded joints from souring in salty water and moisture, use a copper lubricant or special anti-friction compound before assembly, which will make it easy to unscrew the nuts even after the season of operation.
Legal and security requirements
Installation of additional equipment on the trailer, including the holder of the spare wheel, should not violate the overall dimensions of the vehicle, established by traffic rules. The wheel is usually not allowed to fly outside the width of the trailer, unless it is marked by position lights and is not closed by special shields. In some regions, you need to coordinate design changes with the traffic police, if the attachment significantly changes the appearance or parameters of the trailer.
Safety also implies a reliable fixation, which excludes spontaneous disconnection of the wheel. When passing a technical inspection, the inspector will check the spare attachment, and if it is in doubt, you may be denied a diagnostic card. Always carry a trailer vehicle passport, where the maximum load on the axles and breathable can be indicated, so as not to exceed the permissible mass.
Remember that a wrongly fixed wheel at high speed turns into a projectile that can cause serious damage to surrounding cars and pedestrians. Responsibility for the condition of the trailer and cargo lies entirely with the driver, so saving on fastening materials is unacceptable.
Safety of the spare wheel mounting is more important than aesthetics – it is better to spend more time strengthening the structure than risking an accident on the track.
Service and seasonal storage
After the navigation and storage of the boat, the spare wheel attachment also requires attention and care. Metal elements of the structure should be inspected for the appearance of chipped paint or corrosion, especially in the welding and drilling sites.
If you take the wheel off for winter storage, clean the bracket of dirt, salt and sand accumulated over the season. The thread joints are recommended to be unscrewed, cleaned of old lubrication and dirt, then lubricated again and reassembled, which will prolong the life of the fastener and ensure that in the spring you can easily install the wheel in place.
- 🧼 Wash your fastener carefully after each trip to the sea.
- 🧼 Lubricate the carving with graphite or copper lubricant before winter.
- 🧼 Check the integrity of the welds once a season.
For owners who store the trailer in the open air, it is recommended to remove the wheel or cover it with a cover, as ultraviolet light destroys the rubber, and temperature changes contribute to the condensation of moisture inside the mounting structure. Simple preventive measures will avoid expensive repairs or replacement of elements in the spring.
Frequently Asked Questions (FAQ)
Can the spare be fixed to the plastic or composite element of the trailer?
It is strongly recommended not to attach heavy elements such as a wheel to plastic or composite parts, as they are not designed for such dynamic loads and can crack.
What is the minimum diameter of the bolts to use for fastening the bracket?
For reliable fixation, it is recommended to use bolts with a diameter of at least M10 or M12 of strength class 8.8 and above. The use of thinner fasteners can lead to its cutting when shaking or hitting hard.
Do I need to register the installed bracket in the traffic police?
If the bracket does not change the overall dimensions of the trailer in plan (width and length) and does not affect the operation of lighting devices, registration of changes is usually not required. However, if the structure is strongly protruding, it is better to consult the local traffic police department.
How often should I check the tightening of the wheel mounts?
Checking the puff is recommended before each trip, and after the first 50-100 km of the path with a new or overhanged wheel, control is mandatory, since the metal may slightly "sit down" and the nuts weaken.