Safety and comfort on the water often depend on little things that at first glance seem secondary. boat-mountIt is this element that locks the hummel in a certain position, allowing the vessel to move in a straight trajectory without constant operator involvement.
Many beginners underestimate the importance of a proper stop, continuing to operate a boat with a loose or missing hold, which not only tires their hands, but also poses a real safety threat, especially in choppy conditions or moving against the current. In this article, we will discuss in detail the device, types and subtleties of setting this unit.
The lack of a reliable fixation of the hummel can lead to a sharp turn of the boat, which in an emergency situation can lead to people falling overboard or collision with obstacles. Therefore, the state of focus should be given as much attention as the operation of the cooling system or carburetor. Let's figure out how to ensure the perfect operation of this mechanism.
Design and design of a persistent mechanism
The push, or the crank, is a mechanical device designed to hold the engine handle at a given angular position, and in its simplest form, it can be a spring-loaded ball entering the groove or a friction washer creating rotation resistance. Substantive function Compensation for water resistance acting on the lower unit and screw.
The knot is often structurally integrated into the base of the bumper or into the rotary mechanism of the hinge bracket. Yamaha and Tohatsu It uses complex systems with adjustable pressing force, which allows you to adjust the rigidity of the fixation to the specific conditions of navigation and the physical strength of the operator.
Some designs provide for the presence of special notches or "wells", in which the rummule is fixed when entering the planing. Accurate hitting these fixing points ensures minimal resistance and maximum efficiency of the screw. If the mechanism is worn out, the boat begins to prowl, which sharply reduces speed and increases fuel consumption.
Why does the roaring wheel turn around?
The spontaneous rotation of the rummel is most often caused by the development of frictional stress linings or the weakening of the spring. In rare cases, the cause may be deformation of the rod itself due to impact on an underwater obstacle.
Types of fixers and their features
The boating market offers a variety of solutions for fixing the position of the engine, and understanding the differences between them will help you choose the right spare parts or conduct a competent tuning of existing equipment.
Type one: friction-pointThey work by the friction between two surfaces, and they're tucked in by a nut or a screw, and they're simple and reliable, but they require periodic lifts during operation, because the material on the lining is gradually worn out.
Type two: spring-ball-holdersHere, the hummel is fixed in well-defined positions (usually "neutral", "full gas", "small gas"), which is convenient for maintaining a constant speed, but less flexible when maneuvering. The third type is a combined one that combines both principles.
The type of stop you choose depends on the tasks you set for the boat. For fishing, where you need frequent speed change and precise positioning, friction patterns are often preferred. For long straight-line transitions, hard-fixing locks at certain points are good.
Adjustment and adjustment of the fixation force
The right setup is the key to comfortable control. Too weak a hold will not hold the course, and too tight will make the control heavy and can lead to rapid fatigue of the hand. Adjustment is usually done through a special screw or nut on the axis of the tubel.
First, you need to loosen the counternut if it's designed. Then, as you rotate the adjusting screw, make sure that the rotator rotates with noticeable, but not excessive, resistance. After setting the desired tension, remember to fix the result with a counternut so that the settings do not get lost from vibration.
⚠️ Attention: When adjusting the friction stops, do not pull the mechanism "to the point", this can lead to deformation of the axis of the bumper or damage to the plastic gears of the gas-reverse, which will entail expensive repairs.
The best way to check the quality of the tuning is to go on the water, and if the boat is constantly being led aside and you have to constantly adjust your course with muscle effort, the emphasis requires a lift, and if the rummule is moving in jerks, it may be contaminated or lubricated.
☑️ Structure of the thrust
Compatibility table and common problems
When looking for spare parts, it is important to consider the engine model, as the design of the stops can differ even within the same manufacturer. Below is a table illustrating typical problems and their solutions for popular brands.
| Motor brand | Typical problem | Decision | Frequency of service |
|---|---|---|---|
| Yamaha | Wear of the friction washer | Replacement of the puck, adjustment of tension | Once a season |
| Mercury | Weakening of the retainer spring | Stretching or spring replacement | As necessary |
| Tohatsu | Luft in the axis of the hummel | Replacement of bushings, lubrication | Once in season 2 |
| Honda | Failure of the mechanism | Sand cleaning, lubrication | After each trip |
As you can see from the table, most problems are solved by preventive maintenance. Regular lubrication and sand cleaning significantly prolong the life of the node. Ignoring small backlashes can lead to a breakdown of the entire gearshift mechanism.
Lubricate the rubbing parts of the stop only with water-resistant lubricant designed for outboard motors. Conventional solidol or lithium lubricants are quickly washed out with water, leaving the mechanism unprotected.
Diagnostics of malfunctions and repairs DIY
If the tension adjustment does not help and the backlash persists, you need to make a defect of the parts. Remove the shell of the pump and inspect the rubbing surfaces. The presence of deep furrows, chips or critical wear indicates the need to replace parts.
Often the problem is not the stop, but the state of the gear shift. If the thrust is curved or has a backlash in the hinges, the rummuler will not get in the correct position. shift linkage.
To replace the thrust, you'll need to disassemble the ramule assembly, which usually requires removing the locking rings and carefully removing the axis. It's important. remember the assembly order and orientation of all washers and springs, as an incorrect assembly can block the operation of the gas reverse.
⚠️ Attention: When disassembling the mechanism of the pump, be careful with the spring of the gas-reverse. It is in a tense state and, if handled carelessly, can shoot, causing injury or getting lost in the hold of the boat.
After replacing worn-out elements, assemble the mechanism, grease the friction nodes abundantly and re-adjust. If you are not sure about your abilities, it is better to contact the service center, as an error in the assembly can lead to the inability to turn on the rear gear.
Timely replacement of worn friction elements of the stop is much cheaper than repairing a broken gearbox due to incomplete inclusion of the reverse.
Tuning and modernization of the control node
Boat owners often resort to tuning to improve ergonomics, and one popular option is to install an elongated or variable-length tiller, which requires a customized stop or a universal hold.
It is also popular to install additional handles or buttons on the tube, which changes the center of gravity and the load on the stop mechanism. In such cases, the standard fixing force may not be enough, and more powerful springs or friction pairs are required.
Some masters set up gas-head It's a complex development that requires precise calculations, but it greatly improves the comfort of driving at high speeds in stormy weather.
Whenever you interfere with the design, remember the warranty. Homemade improvements can cause a denial of warranty service to the engine. Always weigh the risks and benefits before making modifications.
How often should the lubricant be changed in the stop mechanism?
It is recommended to perform an inspection and lubrication of the stop mechanism at least once a year, preferably before navigation. If you are operating a boat in salt water, the check should be carried out more often - every 50 hours or after each serious trip, as the salt aggressively washes the lubricant and causes corrosion.
Can I drive without a stop, holding a tiller with my hand?
Technically possible, but it is extremely uncomfortable and unsafe at long distances. Constant muscle tension causes jitters in the arm, causing engine speed fluctuations and boat yaws. Also, in an emergency (such as a person overboard), you will not have free hands to maneuver or signal.
Why did the back gear disappear after the stop replacement?
Most likely, during assembly, the adjustment of the thrust length of the switch was disturbed or the angle of rotation of the tube was incorrectly set. The mechanism of the stop is often associated with the course of thrust of the gas-reverse, you need to re-adjust the length of thrust so that at the extreme positions of the tube there is a full turn on of gears.
Which material is better for friction linings?
Original linings are usually made of special composite materials or hard grades of plastic that are resistant to abrasion and water. It is not recommended to use rubber pads or leather, as they quickly swell from water and lose friction properties. It is better to use original spare parts or quality analogues.