What is the function of the bypass valve in an oil filter?
The bypass valve – otherwise known as a pressure relief valve – is an integral part of the oil filter. The valve is designed to open when the oil filter becomes clogged or when the oil is too thick.
Why is an antidrain check valve used in an engine?
An antidrain check valve is incorporated into the assembly to prevent the oil in the tank from draining down into the engine sumps when the engine is not operating. This check valve is normally spring loaded closed with 4 to 6 psi needed to open it. Figure 6. Last-chance filter before spray nozzle
How big are the filters for turbine lubricating oil?
There are several types and locations of filters used for filtering the turbine lubricating oil. The filtering elements come in a variety of configurations and mesh sizes. Mesh sizes are measured in microns, which is a linear measurement equal to one millionth of a meter (a very small opening).
What are the filters in an engine lubrication system?
The filters generally discussed are used as main oil filters; that is, they strain the oil as it leaves the pump before being piped to the various points of lubrication. In addition to the main oil filters, there are also secondary filters located throughout the system for various purposes.
What is the part number for an oil pump?
By searching various parts databases it appears that the oil pump part number 06A115105B (Sec 4 Fig-11) is used in Engine types ALZ AVJ BFB BEX AVB AMB and BKE in model years from 1998 thru 2006.
When to do a reliability check on a hydraulic filter?
However, proper reliability checks should be done with the system running under normal operating conditions. These checks are vital for preventing equipment failures and downtime. Most hydraulic filter assemblies have a bypass check valve to prevent damage in the event the element becomes plugged with contamination.
Why do you need a bypass check on a hydraulic filter?
These checks are vital for preventing equipment failures and downtime. Most hydraulic filter assemblies have a bypass check valve to prevent damage in the event the element becomes plugged with contamination.
When do you need to make a sound check on a hydraulic pump?
Regular sound checks should be made, especially with hydraulic pumps. Cavitation occurs whenever the pump cannot get the total amount of oil it is calling for at the suction port. This will produce a steady, high-pitched whining sound. If not corrected, the pump will deliver a reduced output until it destroys itself.