Situations where a car suddenly loses the ability to drive on its own always occur at the most inopportune moment. An engine failure, battery discharge, or a broken wheel can turn a trip into a serious problem requiring external assistance. At times like this, tow-line It is the only way to get the vehicle to a safe place or to the nearest service.
Having the cable in the trunk is only half the solution. The critical point is the ability to correctly and reliably fix it on the tow-hole. An incorrectly tied knot can untie on the go, which will lead to an accident, bumper damage or even injuries to traffic participants. Knowing proven sea and rigging hubs is a basic skill that every owner should have. motor-car.
In this guide, we will analyze the technical nuances of fastening cables from various materials, consider the schemes of nodes for regular hooks and situations when there are no regular eyelets. You will learn how to distribute the load so as not to damage the body, and what mistakes drivers most often make when organizing towing.
Choosing the right node depending on the type of cable
The first thing to do before starting the procedure is to determine the material of your towing device. The choice of the node directly depends on this, since the physics of friction in different materials is radically different. Synthetic cables, made of polypropylene or nylon, have a smooth surface and are prone to slip, which requires the use of more complex weaving schemes for fixation.
Unlike synthetics, metal chains or cables in braids require a special approach to protecting the mounting points. If you use metal-chainThe main task is to prevent damage to the paint coating and the metal of the eyelet by sharp edges of the links. Here the knot as such does not fit, but the method of covering and fixing the lock plays a crucial role.
โ ๏ธ Warning: Never use natural rope knots on slippery synthetic cables without additional fixation. A simple โbabyโ knot on polypropylene will untie under load in a matter of seconds.
For most modern motorists, it is important to work with textile slings. They are light, do not rot and take up little space, but require competent treatment. Dynamic jerk slings have the property of stretching, which creates an additional load on the unit at the time of jerking, so the safety margin of the attachment should be maximum.
Preparation of towing eyelets and anchorage points
Before starting to knit the nodes, it is necessary to provide access to the standard places of attachment. In modern cars towing-eye often hidden under decorative stubs in the bumper or are in a niche under the trunk floor along with a jack. It is important to prelocate these elements so as not to waste time searching at the time when you need to clear the roadway.
The preparation process involves cleaning the ear thread from dirt and corrosion if it is screwed into the body. Rust can cause the eyelet to jam or, conversely, to snatch a piece of metal when jerking. If you use an external hook adapter, make sure it is load-carrying capacity It is the same as the mass of your car.
- ๐ Visually inspect the eye for cracks or severe corrosion of the metal.
- ๐งน Clean the hole of dirt, sand and old lubricant for reliable contact.
- ๐ง Make sure that the eye is screwed to the point and fixed by the locking mechanism, if it is provided.
In some cases, the regular eyeglasses may be damaged or lost. Drivers are then forced to use alternative mounting points, such as suspension elements or frames. However, this approach requires deep technical knowledge, as not all details are able to withstand the load on the body. gapThe towing that creates.
Technique of knitting of the "Bulin" node for towing
One of the most reliable and popular nodes for attaching the rope to the hook is the "Bulin", or gazebo knot. Its main advantage is that it does not tighten tightly under load and is easy to untie once the towing is complete. This makes it an ideal choice for situations where you need to fasten. cable.
The technique of execution requires a certain skill, which is better to work out in a calm atmosphere. First, a small loop is formed at the running end of the cable, then the main end is passed through it, the root part is rounded and returned to the loop. The resulting untightened loop is put on the hook of the ears.
โ ๏ธ Attention: When knitting the brood on a slippery synthetic cable, be sure to make a control lock assembly on the free end to exclude spontaneous untying of the main node.
It is important to understand that the Boulin reduces the strength of the cable by about 30-40% at the bending site, but provides the highest reliability of fixation. To increase strength, you can use a double boulin, which creates two parallel threads in the loop, distributing the load. This is especially true when towing heavy SUVs or light-duty.
Fixing of the cable in the absence of a regular hook
Situations when the staff hook is lost, broken or structurally not provided (for example, on some old models or specific vehicles), are common. In this case, you have to be creative, using suspension elements, such as: lever or Transverse stability stabilizers. However, attaching the cable directly to these parts can cause them to break.
It is safest in such cases to use the method of โshockingโ with a shock-absorbing gasket, covering a reliable element of the structure, for example, a bridge beam or a shock absorber mount. The main rule is that the cable should fit to the metal through a dense fabric, a rubber hose or a special case to exclude rubbing and damage to parts.
| Type of anchorage point | Risk of damage | Recommended node | Depreciation requirements |
|---|---|---|---|
| Staff eyeglass | Low. | Direct capture/Bulin | No. |
| The pendant lever | High-pitched | Booster with gasket | I'll be sure. |
| The frame of the car | Medium. | Sketch knot | Preferably. |
| Wheel disc | critical | Not recommended | โ |
The use of wheels as a mounting point is strictly not recommended, unless it is a special disc for SUVs with developed ground hooks and the cable does not pass through them in a special way. In most cases, the burden on hub when towing, it can lead to the destruction of the disk or damage to the bearing.
Alternative methods: the node "Skotovy" and its variations
If the classic boulin seems too difficult for you to remember in a stressful situation, a scotch knot comes to the rescue. It is specially designed to attach the cable to objects with a hole or hook and is characterized by its simplicity of execution. The scotch knot reliably holds the load and is easily untied, even if the cable is strongly stretched.
To perform this knot, the end of the cable is passed through the hook ring, then wrapped around the root part and pressed with its own turn. There is also a double scooter knot which provides even greater reliability by having an extra twist around the main part of the cable. It's a great choice for you. flat-sling.
โ๏ธ Checking tow readiness
It is important to note that the scotch knot can crawl on the cable if the load is constantly changing (shoot towing). Therefore, after tightening the main node, the free end must be fixed with a simple grasping node or tied at the end of the rope with a locking eight.
Safety rules and load allocation
Towing is a process that involves risk, and proper knitting is only part of the safety equation. It is critical to consider the length of the cable: it should be from 4 to 6 meters for traffic in the city and up to 9 meters on the highway. Too short cable does not leave time for the driver to react to the towed car, and too long can lead to the folding of the โtrainโ on the turn.
When the rope is stretched, the load on the nodes increases many times. If you use the method of attachment through the coverage of body parts or suspension, make sure that the angle of coverage is not too sharp. Sharp curves of the cable under load can cause it to rupture at the point of contact with the metal. Always use. shock absorbersSuch as a heavy blanket thrown across the middle of the cable so that if it breaks, it does not turn into a deadly lash.
The signals between drivers must be worked out in advance. Since communication via mobile communication can be interrupted, and light signals are not always visible during the day, use proven beeps: one short is โreadyโ, a series of short ones is โslow downโ, and a long one is โstopโ.
Frequent errors in the attachment of towing equipment
One of the most common mistakes is the use of insufficiently strong nodes or materials. An attempt to link two short cables together with a simple node โfor memoryโ often ends with their untying under load. To increase the length, use only special carbines or proven connecting units, such as "straight" with control ties.
Drivers often also ignore the condition of the cable itself. Rubbing, tearing of the synthetic threads or the โshagginessโ of the metal cable are signs that its strength has fallen by 50% or more. Using such equipment is equivalent to playing Russian roulette on the road.
Another mistake is attaching the cable to the plastic bumper elements or decorative linings. Even if they seem durable, at the first jerk plasticizes, and the car will remain without a point of support. Always look for metal: frame, spars, suspension elements or regular screwed-in ears.
Remember that even a perfectly tied knot will not save you if the cable itself does not correspond to the mass of the car. Always take a cable with a margin of safety exceeding the total weight of your vehicle by at least 1.5-2 times.
Questions and Answers (FAQ)
Can I use a regular rope to tow a light car?
It's not recommended. Conventional ropes do not have the necessary margin of tensile strength and are prone to rapid grinding. When a jerk is made, such a rope will burst instantly, which can lead to an accident. Use only specialized ones. towing-line with the marking of the permissible load.
Which knot is best for a slippery nylon cable?
For slippery synthetic materials, a double boulin or scotch knot with a mandatory locking knot on the free end is best. Simple nodes can crawl and untie under dynamic load.
What if the head is lost and you need to tow it urgently?
In an emergency situation, you can use strong suspension elements (levers, stabilizers), after wrapping them with a dense fabric or rubber to protect against rubbing. Mounting the cable to semi-axles, steering rods or plastic parts of the body is prohibited.
Do I need to lubricate the thread of the towing eyelet before use?
Yeah, that's good practice. Treating the thread with graphite or copper lubricant prevents corrosion sourcing, and you can easily unscrew the eyeball the next time you need it.