How to change the front wheels on a loader. How to change tires on forklifts? The main causes and stages of tire wear

Today it is difficult to imagine a modern enterprise without the use of special equipment, which helps to quickly and efficiently carry out all the necessary loading and unloading operations. Unfortunately, over a certain period of time, even new equipment requires technical inspection and preventive maintenance. The most common parts that need to be repaired and replaced are the forklift's electronics and tires. ITS-Holding company offers high-quality and inexpensive tires for forklifts at an affordable price to every client.

The main causes and stages of tire wear.

— The first stage or simple wear of the loader tires. This type of wear is characterized by damage, which is achieved by fifty percent wear of the rubber surface.

— Damage of varying depths in the form of small potholes across the entire surface of rubber tires. Improper operation of equipment, various debris on the floor covering, and driving on a curved surface are the main reasons for significant damage to the rubber coating.

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— Metal thresholds, sharp surfaces, and uneven floors are the main reasons for the appearance of cuts in the rubber surface.

— When making sharp maneuvers or not following operating rules, abrasions may occur on the rubber coating of the tires.

How to change tires on a forklift?

— First of all, you need to evaluate all the loader tires for wear and determine the need for replacement. If the damage is minor, you can try to restore the surface using available methods. If the tire is severely worn or damaged, it must be replaced with a new one.

— When the degree of tire wear has been determined, you need to prepare a place to carry out all the necessary work. You also need to prepare all the necessary tools and new tires for replacement.

— To quickly and efficiently replace a tire, you need to use a jack. To remove the nuts from the wheel, you must use an air wrench. It is best to entrust this procedure to a professional master. This will guarantee a long service life for the new tires.

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— In addition, to avoid premature tire wear, you must follow the operating instructions for the forklift, and also clean the floor covering from dangerous objects that could damage the rubber surface of the forklift tires.

(except hydrostatic brake systems) operate on the principle of friction, and friction leads to heat generation. Using the brakes too often and too hard will cause them to overheat and wear out prematurely, which in turn can lead to brake failure. The most common examples of brake “abuse” are:

an unskilled operator does not know how to calculate his strength and the capabilities of the machine: he accelerates the machine too much, and then brakes too sharply and quickly;

the brakes are often activated unintentionally: if the operator is used to keeping his foot on the brake pedal, he often makes accidental presses;

Operators working in a hurry (for the sake of achieving greater productivity or exceeding standards) when working over short distances, first squeeze the gas hard and then hit the brakes hard to stop.

To extend brake life, Kawasaki experts recommend that novice operators release the gas pedal and start slowing the machine a little earlier, so that the loader coasts and braking occurs due to the weight of the machine itself and the cargo being transported, and press the brake pedal when the machine is almost stopped.

It is also important to understand the principles of how to use clutch release most effectively. “We often see a lot of operators who don't know how to use the clutch release,” says Phillips. “When they're loading material into a truck bed or bin, they drive with the brakes on, which wears out the brakes instantly.”

Disengaging the clutch allows the transmission to shift into neutral during the braking cycle. “Pressing the release pedal puts you in neutral and then you can apply the brakes,” explains Phillips. “After that, if you press the accelerator pedal with the brakes on to start working on the machine's hydraulics (for example, if You want to raise or lower the bucket or control the movement of the boom), then the loader will no longer accelerate against braking."

“If the operator uses the clutch release pedal correctly, then when working with a hydraulic tool, the transmission will be turned off, and there will be no negative effect on the braking system,” adds the expert.

Most often this happens due to high gears. “In other words, the operator uses the gearbox and torque converter to change the direction of the machine,” Phillips says. The operator engages reverse, drives for a while, and then with one push switches the gearbox to forward speed and squeezes the gas, or vice versa. “Operators manage to carry out loading and unloading operations that require constant switching between forward and reverse, without even pressing the brake pedal! It turns out that all these loads fall to the share of the gearbox and torque converter, which as a result overheat.”

More often than not, the situation is made worse by operators seeking to reduce cycle times to improve productivity. This can lead to premature failure of these expensive systems. Thus, manufacturers have to come up with ways to overcome this situation.

For example, Volvo has developed an Optishift transmission system, which is installed by default on large models of the company's forklifts, and allows the operator to immediately shift into high gears, but automatically activates the brakes in this case. “We call this reverse braking,” says Phillips. “Whenever the operator tries to change the direction of the machine, the on-board computer of the forklift will detect that a high gear shift is occurring and automatically apply the brakes to stop the machine. So, even if the operator has this bad habit, he will not need to relearn how to operate the gearbox: the car itself will take care of a possible problem and will be able to prevent it."

The loaders also come with additional automated features to help protect critical components and equipment. For example, forklifts are protected against overheating. “If any system (such as the engine or transmission) overheats, the engine will go into overdrive to prevent potential damage,” comments Chesterman. “If the axles overheat on our Tier 4i engines, the operator will receive the appropriate warning."

Modern forklifts, equipped with smart electronics, are able to warn the operator about the occurrence of problems and other types. Sensors transmit data to the operator (temperature, liquid level, pressure, etc.) from systems operating in critical mode. This data is displayed on the dashboard or on-board computer display. Signal LEDs and instrument dials are positioned to alert the operator to alarms during operation before any failure occurs.

Forklift operators are often tempted to skip the recommended warm-up of the machine before starting work. However, such negligence negatively affects the condition of the engine and hydraulic system.

“Cold oil does not lubricate parts as well and does not circulate as well as warm fluid, so warming up the machine to the recommended temperature will help increase the life of its key components,” advises Ellis. daily maintenance."

“Once the operator starts the forklift, he should allow it to warm up to the temperature specified by the machine manufacturer in the machine's owner's manual,” adds Chesterman. “Additional systems, such as the hydraulic system and axles, do not fully warm up until the machine is in operation. operation. So the operator must keep in mind that for the first few minutes, while these systems have not yet reached the required temperature level, the machine will not operate at maximum performance."

It is equally important to give the machine some time to complete its work at the end of the shift. "All of these large diesel engines now have turbochargers," says Phillips. "Turbo speeds average between 40,000 and 50,000 rpm. If you don't let your car's engine idle for two to three minutes and cool down a bit, then when the engine is turned off, its turbocharger will still operate at approximately 40 thousand rpm."

When the engine is switched off, oil stops flowing to the turbocharger. “So the turbocharger is under a tremendous amount of stress and wear at this point,” Phillips concludes. “If you give the engine a couple of minutes to cool before turning off the car, then the turbocharger is guaranteed to stop spinning by that point. However, if the turbo continues to spin after shutting down motor, its bearings will spin in an ungreased state, which will lead to overheating and reduced service life of this extremely expensive component."

Manufacturers of special equipment are constantly inventing new solutions to reduce these risks. “We equip our machines with shutdown timers,” says Phillips, “in other words, after the operator turns off the engine, the machine will idle for three minutes and then shut down.” The cost of this feature more than covers the huge potential cost of replacing the turbocharger in the engine.

There are a number of factors that can cause premature tire wear and failure.

"Inexperienced operators tend to spin their tires when driving, which is one of the most detrimental effects on a machine. When traction is lost, the tire stops doing its job," says Phillips. "They don't use differential locks to lock the front axle and provide power distribution to both front wheels instead of just one, which would reduce slipping."

Inadequate tire inflation pressure is another common cause of excessive tire wear. “We often see that a significant portion of tire failures are due to improper inflation,” says Phillips. “For radial tires, low pressure results in increased operating heat due to the full weight of the vehicle being applied to the point where the tire contacts the surface. Therefore, if a tire is not inflated to a tight level, it will overheat, causing wear on the rubber surface and reducing the life of the tire."

To solve this problem, John Deere offers an integrated tire pressure monitoring system as an option on its loaders. The Auto Differential Lock system detects wheel slip and automatically locks the differential, reducing tire wear and improving traction for improved overall machine performance.

In some cases, wheel slip is not the fault of the operator. “Wheels can spin because the wheel type for a particular model is not properly selected for the specific operating conditions,” says Phillips. “As an analogy, if you equip, for example, a four-wheel drive truck with winter tires, then it will benefit You will only extract when it snows, and the other 90% of the time they will only get in the way."

It is very important to select the right tires for a specific work task. This will help ensure their optimal lifespan. "Choose your tread pattern carefully based on your needs," advises Ellis. For example, all-terrain tires with a more widely spaced tread pattern will wear out faster on paved surfaces. “If you always have to work on concrete or asphalt surfaces, then it is better to choose an L4 or L5 tread to minimize tire wear. If you work off-road, then you should take a closer look at all-terrain tires with a more aggressive tread pattern. Thus, The tread should be selected based on the type of wear your tires will be subject to."

High-quality installation of forklift tires ensures that the tire fits correctly on the rim. Professional work - excellent results. Our service center installs pneumatic tires for forklifts and solid tires with landing diameters up to 15 inches.

Today it is not difficult, but it is problematic to mount them on rims (wheel discs). From us you can not only purchase tires of the desired type and size, but also install/dismantle them.
To perform such an operation, a force of 10 to 160 tons may be required. Even with a small diameter forklift tire, special conditions are required, otherwise misalignment can reduce the service life of the wheel by half. Our service has the necessary equipment that allows you to quickly carry out high-quality installation / dismantling of pneumatic and solid (other names for tires: superelastic, gusmatic) tires for loaders with different bore diameters. We carry out installation using technology that eliminates distortion of the rubber inside the tire, which will protect against uneven tread wear.

We carry out tire fitting of tires for cars and electric forklifts of the following brands: Toyota, Komatsu, TCM, Mitsubishi, Nissan, Caterpillar, Jungheinrich, Linde, Still, Nichiyu, Heli, Hangcha, JAC, Utilev, Maximal, Dalian, TFN, Daewoo-Doosan ; Hyundai, Clark, Yale, Hyster, Manitou and many others

If necessary, we can arrange for the collection of worn tires on rims, mount new tires on rims and deliver them back to you to the place of operation.

To carry out tire fitting work, you need to contact our specialists by calling 8-495-775-44-66 ext. 1202, 1201

Cost of tire fitting and delivery of tires for forklifts

Why is it profitable to change tires at Eurowarehouse?

• When purchasing a set of tires and wheels for a loader from our company, the installation service is provided free of charge
• NO DOWNTIME! Additional free service for the provision of replacement wheels “superelastic” (removal/installation of replacement wheels – FREE!). And while the new wheels are being installed, your equipment is operating as usual! The service is provided when purchasing tires from our company and simultaneously replacing sets of tires on two loaders.

The range of replacement wheels is limited; before carrying out tire fitting work, you need to contact our specialists by calling 8-495-775-44-66 ext. 1202, 1201