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How Does A Tire Machine Work

Author: Maisie | Published on Thu Apr 02 2015 | Views : 3071 Tire Reviews0

About Tire Machine

Recently, tire machines are stand-up models that hydraulically assist the tire technician to remove the tire from the rim and replace it. You can see the hydraulics in the machines can either be electrically or pneumatically powered. There are many moving parts on the machine that take the technician through the removal and replacement process at one machine, without having to move around the shop. These tire machines were designed for speed and efficiency. The bead is separated from the rim, placed on a clamping turntable, and an adjustable tool bar, pry tool, and the turning motion of the turntable remove the bead of the tire from the wheel. Generally, the machines have tire lube bottles band-strapped to them to conveniently apply a coat of lubricant to the bead of the tire being installed. They also need some shelf space for valve stem replacement storage and other tools. 




The Bead Breaker

The bead breaker commonly located on the right side of the machine if you’re facing it from the front. the tires are rolled up on the wheel and deflated to the right side of the machine standing vertically. And the bead breaker is lined up manually by the technician and strategically aimed near the bead of the tire, but just away from the inside edge of the rim. The bead breaker is activated by a foot pedal on the bottom of the front of the machine (or, in some older models, by a button on the bead breaker handle activated by the thumb of the technician), and is drawn toward the machine using hydraulic pressure to collapse the bead from the wheel. The tire is then turned around manually and the bead on the reverse side of the wheel is separated from the wheel again so that the beads on both sidea of the wheel are collapsed before placing it on the turntable.

The Pry Bar and the Tool Arm

When the tire is laying on the turntable and clamps have locked the wheel, the adjustable tool arm swings up to the top right-side edge of the wheel. There have a metal or plastic curved end of the tool arm (commonly called a duck head because it resembles the head of a duck) that wraps around a 7-or 8-inch-wide area of the top of the wheel rim. The tool arm is spring-located and can move up and down easily, and moves from a boom arm that swings back and forth. 

The Turntable

The turntable is at the top of the base of the tire machine--low, so that it can be easily worked on by the tech at thigh level. Now the beads collapsed inward from the wheel, is placed on the turntable horizontally. And four hydraulic or pneumatic clamps are activated by another foot pedal located near the floor in front of the machine. Clamps can either extend from in to out and clamp the tire from the inside circumference of the wheel, or they can clamp on the outside edge of the wheel moving from out to in. 




The Foot Pedals

You should know the foot pedals, their location, and the function they perform is the trickiest part of the tire machine. The more a tire technician uses one, the easier and quicker this becomes. There may be three or four foot pedals in the bottom front of the machine that all operate different functions of the tire machine, so it’s all about coordination. Most of thesse machines and the foot pedals that operate them have automatic shut-off functions. 

The Air Inflator

When you installed the tire on the tire machine successfully, the last step is to inflate it. On the left side of the machine is yet another device and another foot pedal. The device is a pneumatic air hose with an adapter that fits onto the universal valve stems. Air is pumped through the air hose by stepping on the foot pedal. Most machines will also have an air inflation gauge to monitor how much air pressure is being pumped into the tire.



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