# CTE Resource Center - Verso - Diesel Equipment Technology III Task 493159115

CTE Resource Center - Verso

Virginia’s CTE Resource Center

Identify type of filtration system and flow direction.


Identification should include

  • determining whether the main oil filter is located on the pressure side of the pump or the return side
  • checking for type of filter used
  • verifying application of the filter
  • determining flow direction.

Process/Skill Questions

  • Why do some hydraulic systems have both a paper filter and a metal screen in a separate filter base?
  • When should a hydraulic oil filter be changed?
  • Why are some oil filters placed on the pressure side of the pump while others are placed in the hydraulic tank on the return side?