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How to select proper wheel loader tires

How to select proper wheel loader tires

Classification:
Maintenance
Author:
Source:
Release time:
2019/04/10
[Abstract]:
How to select proper wheel loader tires

Selecting proper wheel loader tires may make a significant difference between underperforming or excelling at an aggregate operation. If the correct tire is chosen for the application, it can save time and money down the road.

One of the first steps wheel loader owners should consider before purchasing tires is to be aware of what tire types are available. Mike Stark, says there are two popular tire styles: radial and bias.

According to Stark, a radial tire tends to be more expensive; however, the machine’s total cost of ownership may be lower because the tires provide better traction and flotation, and help contribute to lower fuel consumption.

“Radial tires have better control, especially at higher speeds, because the tires don’t flex as much,” Stark says. “Also, a lower rolling resistance allows wheel loader operators to turn easier.”

He says the tires also don’t heat up as much when in high-speed applications, extending tire life.

Radial tires typically consist of two parts. The first is the casing, composed of one layer of rubber-coated steel cables that arc from one bead to the other. The second is rubber-coated steel plies – made up of steel belts – which are placed under the tread, helping resist cuts and punctures.

Radial tires are ideal in applications where traction, tread wear and distance are important factors. Many times the wheel loader tires are operated on surfaces for loading applications.

Operators looking for tires that do well on gravel, as well as in applications where cutting sidewall is a possibility, should consider bias tires because of the thicker sidewalls, Stark says.

“Bias tires have thicker sidewalls, which gives them a stable and smooth ride,” Stark says. “The bias tires perform well because they are more repairable and the distances traveled are normally shorter.”

In addition to radial and bias tires, there are solid tires, which are normally reserved for wheel loaders working in scrap yard and industrial applications; and flotation tires, which are wider, but are ideal in soft and muddy ground conditions.

The way an operator handles his or her machine also plays a part in the tires’ longevity. Photos courtesy of Doosan

After determining the best tire type for the application, the next step is to select the tread pattern or tire design. According to Stark, wheel loader tire treads should be tapered to allow material to exit the tires. In wet or muddy conditions, the excess buildup can fall out of the tire grooves, giving operators more traction at the worksite.

In common wheel loader applications, an L2 or L3 tread design is recommended. With the L2 tire, maximum traction and cleaning ability in sand and soft conditions is favorable. The L3 offers rock resistance in general loader applications.

When looking for tire treads in pit and quarry applications, the bigger the tread number, the better. The L5S or L5 offer deeper tread depth and longer tread life. Although the L4 and L5 tires are more expensive than the lower-numbered treads, Stark says the cost of ownership comes into play, again.

“If the machine is sitting around for a couple of hours each day, the owner might want to look at the upfront cost,” he says. “However, if he’s continually operating the machine, he may want to invest upfront in the right tire to save him money down the road.”

Maximizing tire life

To maximize the wheel loader tire’s life, customers must first understand that each site is unique and that some applications may tax the tire more than others.

“A typical tire lasts between 2,000 and 3,500 hours, but it all depends on the application,” Stark says. “You have to consider what applications the operator will be using the machine in to determine if your tire will have longevity.”

For instance, a tire that is used in rock or quarry applications may have a shorter lifespan than a tire used in sandy, dirt or concrete applications.

The way an operator handles his or her machine also plays a part in the tires’ longevity, Stark says. For instance, operators who spin their tires going into a pile could produce more tire cuts and also cause the tire to wear faster.

Stark adds that operators should perform daily maintenance checks, including monitoring tire air pressure, to maximize tire life.

“If the operator has low tire air pressure it may put more pressure on the outside of the tire, creating problems later on,” he says. “Owners also have to make sure they don’t have too high of air pressure in the tire, either. If a tire is under- or overinflated it may cause the wheel loader to burn more fuel, which isn’t efficient.”

Choosing the proper tire for the application can be confusing; however, with tips from product specialists and information from an independent dealer, maximum tire longevity can be achieved.

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