The LO strainer basket has which micron rating?

The LO strainer basket has which micron rating?

• A. 20 micron
• B. 60 micron
• C. 40 micron
• D. 80 micron

Answer: (C)

Filtration size is chosen to balance protecting critical components with maintaining normal oil flow. The LO strainer basket acts as a pre-filter in the lubrication oil system, catching larger debris before oil reaches the pump and downstream filters. A 40 micron screen stops most wear particles that could harm bearings and tight tolerances, while still letting oil flow smoothly and avoiding excessive clogging. A finer screen, like 20 micron, would trap more particles but would cause a higher pressure drop and could restrict flow, risking oil starvation. A coarser screen, such as 60 or 80 micron, would let larger contaminants through, increasing wear risk to components. So, 40 micron is the typical and appropriate balance for the LO strainer basket.

Filtration size is chosen to balance protecting critical components with maintaining normal oil flow. The LO strainer basket acts as a pre-filter in the lubrication oil system, catching larger debris before oil reaches the pump and downstream filters. A 40 micron screen stops most wear particles that could harm bearings and tight tolerances, while still letting oil flow smoothly and avoiding excessive clogging. A finer screen, like 20 micron, would trap more particles but would cause a higher pressure drop and could restrict flow, risking oil starvation. A coarser screen, such as 60 or 80 micron, would let larger contaminants through, increasing wear risk to components. So, 40 micron is the typical and appropriate balance for the LO strainer basket.