Gear Type Oil pump Casing Repair
Gear type oil pumps are used in many industrial and automotive applications and employ a pair of machined meshing gears to push the oil from the inlet side of the pump to the outlet. The pump casing serves as a housing to keep the gears from coming into contact with each other and to prevent the oil from exiting the pump. Over time, the interior of the casing can accumulate deposits and debris, resulting in overheating and failure. Fortunately, repairing the casing of the gear type oil pump is relatively straightforward and can help to extend the life of the pump.
First, the old gasket should be removed and the exterior of the casing should be cleaned and inspected. Gaskets are generally made of rubber and should be disposed of in an appropriate manner. Any areas of damage or corrosion should be filed or sanded and then treated with a quality rust inhibitor. The interior of the casing should also be cleansed and inspected. If there is damage, it should be removed using a file or sandpaper and then treated with a rust inhibitor before the new gasket is installed.
Once the casing is cleaned and inspected, the appropriate seals and gaskets should be installed. It is important to choose the correct size and quality of gasket for the particular pump being repaired. For most gear type pumps, a composition gasket is recommended and a specialized lubricant should be used during installation. If a metal gasket is being used, a sealing compound should be applied to the gasket to ensure a proper seal. Once the gasket is securely mounted, the pump’s mounting bolts should be tightened to the specifications in the manufacturer’s manual.
After the gasket and seals have been installed, the interior of the pump’s casing should be filled with oil that is compatible with the specific pump being serviced. Quality oil will help to lubricate the gear teeth and reduce friction between the gears and the casing wall, helping to increase the efficiency of the pump. The oil should also be properly filtered using a quality oil filter, as contaminants can accumulate in the casing and cause premature wear.
Finally, after replacing the seals and casing, the pump should be tested for proper operation. This can be done by connecting the pump to a pressure gauge and observing its performance. A pump that is operating correctly will show a consistent pressure reading under operating conditions. If the pressure drops significantly or spikes, the pump should be inspected for any internal damage and further serviced as necessary.
In conclusion, repairing the casing of a gear type oil pump is an important and straightforward task. Properly cleaning and inspecting the exterior of the casing as well as replacing the gasket and seals is essential. Once the seals and gaskets are installed, the pump should be filled with clean oil and then tested to ensure that it is operating correctly. With proper attention and maintenance, a gear type oil pump’s casing can be repaired and the pump itself can last for many years.
