The primary method to check whether cushion tires need to be replaced is referred to as the two-inch rule. There are a number of ways to determine if your tires need replacement due to their type. The type of tire being used has just as much affect on the condition of it over time then just plain wear and tear. In these cases, the counterweight of the lift rests on the steer tires instead of being evenly distributed. Heat concentration inside the tire could also be the result of traveling long distances with no weight on the forks. If you continuously see radial cracking when inspecting forklift pneumatic or cushion tires, you may want to consider using a larger or wider tire that spreads the weight of the forklift load over more area. Radial cracking happens when heat concentrates inside the tire due to overloading the lift. If flat spots are found, replace the tire. Flat spots can be avoided by training the forklift driver on operating the lift under proper speeds and braking. This is due to spin or aggressive braking and can result in an uncomfortable, uneven ride for the driver. When you check your tires regularly over time you may notice flat spots. This can result in a bumpy ride for the driver of the lift as well as increased fatigue. Look for large pieces that are falling off the tire. Chunking occurs due to repeated running over debris. Your inspection routine should also be checking for the chunking of the tire. Over time of checking on a regular basis you will see that the tread will ultimately wear down to the point where the tire is bald. A lot of wear will cause a reduction in the height of the tread. Just as you would do when inspecting your car’s tires, check for visible wear to the tread. Inspect the sidewall of the tire and determine if it has been worn down to the top of the numbering or lettering. When checking on the usage of the tire, there are five things on which to focus: Find the line, then determine if the rubber of the tire has been worn down to it. You should be looking for wear or any kind of damage to the treadĪlso referred to as the safety line, the tire may actually show a wear line that many tire manufacturers include in the construction of the tire. In fact, this should be done daily with a pre-operation inspection. Your regular maintenance program should be including a regular inspection of the lift’s tires. If you keep using the tires when they’re too worn, then you could experience reduced fuel efficiency, operator fatigue, or severe damage to the forklift. Just as is the case with automotive tires, forklift tires should be replaced after a certain period of time in use. In this article, Part VI, we will cover when you should replace your forklift tires. Part V focused on how to get the most out of your forklift tires. In Part IV we focused on the longevity of forklift tires. In Part III we discussed how to select the right forklift tire. In Part II we cover what forklift tires are made of and how to read tire sizes from the side of the tires. Part I discusses the types of forklift tires that are available. An old, worn forklift tire (on left) and a brand new forklift tire (on right)
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