These Troubleshooting Pneumatic Cards Deal With Many Common Problems


This valve configuration relieves pressure when a 3-position valve returns to the center position. This trapped air can cause movement during a failure condition while a maintenance technician works to release the jam. It starts with connection to the air preparation hardware of a machine and continues to fine-tune valves to cylinders. This waste can come from rust in the air tank or from hose couplings that were on the ground or oil. These contaminants can quickly destroy the internal components of pneumatic tools and accelerate wear.

This solenoid valve removes pressure on all devices in the machine when an emergency stop is pressed or the machine is turned off. These conditions must eliminate all power and energy stored on the machine and prevent movement of the machine. Unlike many other machines, press applications complicate matters and require the highest degree of control reliability.

In addition, piston performance vibrations can cause loose electrical connections in the control panel, resulting in voltage problems in the solenoids. York Precision Machining & Hydraulics is the market leader in liquid precision components and systems. If you need hydraulic equipment, York PMH is fully equipped to handle your project from design to assembly. At York Precision Machining & Hydraulics, we really appreciate security and know that many of our customers are interested in the problem of hydraulic system failure.

The drive works in a double-acting configuration until air power or pressure is lost and the springs are automatically activated to return the valve to normal. A major cause of many defects in the hydraulic pump is contamination of the hydraulic fluid. It is very important to ensure that both components and liquids are clean before use. Fluid contamination forces Pneumatic air bladder hydraulic pumps and valves to wear out prematurely, causing the hydraulic system to fail and damaged system components. Read our article, Three Ways to Improve the Life of Hydraulic Machinery, to learn how to prevent this common hydraulic accident. Pneumatic safety starts where the compressed air is connected to the air preparation unit of a machine, figure 1.

Obstruction of the water and oil content affects the finish of the barrel or rod and blocks the flow of the hole. All this leads to unexpected equipment failure, costly repairs and costly downtime. Double-acting drives are ideal for high-cycle and / or applications applications where the valve that fails in closed position when power is lost is not a critical problem. Dual activators are the most popular option for their lower cost and superior longevity. Double-acting drives are also more compact than single-acting drives and can be the only option in small-factor applications. When a hose assembly is not properly mounted, it can create a very dangerous situation.

Apply only a few drops of tool-approved pneumatic tool oil to the air inlet connection. The oil is not compressed, so excess oil in the tools can fail or cause reduced performance. Tool makers recommend different oils and lubricants, so make sure to check the manual. Even a small combination of 100CFM compressor and refrigeration dryer running 4,000 per year under normal weather conditions can generate approximately 2,200 liters of liquid condensate per year. A water separator can remove free water from the system, but water vapors and sprays in your pneumatic system can also cause wear and damage to components. Depending on your component or application needs, you must supply the air at a dew point suitable for your application.

This in turn prevents contamination of the areas around the cylinder and possible failure of other systems due to exposure to hydraulic fluid. However, apart from this operational advantage, the pneumatic cylinders are not maintenance-free. These are some of the typical factors that can cause pneumatic cylinder failure. There are several important considerations for keeping cylinders pneumatic and different typical situations that can cause failure.

Losing large inspections can lead to very expensive repairs and even complete failures. Pneumatic locking valves (Fig. 2) They are excellent safety devices which, when used correctly in pneumatic systems, can prevent accidental operation. Ensuring a safe state should always be the first step in solving pneumatic system problems. Unfortunately, hydraulic systems are not designed to last forever and can fail when you least expect it.

Most industrial applications require air at a dew point of approximately + 40 ° Fahrenheit, which a cooling dryer can achieve. However, most paint or instrumentation applications require -40 ° Fahrenheit dew points to work at an optimal level. These dew point levels can only be achieved by using a desiccant filter to chemically remove water vapor from the system. Filter systems can remove oil and dust, but you need well-maintained air dryers to remove water and adjust the humidity.