# CTE Resource Center - Verso - Diesel Equipment Technology III Task 493159120

CTE Resource Center - Verso

Virginia’s CTE Resource Center

Inspect fitting seals and sealants.


Inspection should include
  • looking for signs of leakage or damage surrounding hydraulic fittings
  • replacing fitting seals and sealants as necessary
  • ensuring the seals and sealants are compatible with the fluids and temperatures of the hydraulic system.

Process/Skill Questions

  • Why are there many different colors of O-rings used in a hydraulic system?
  • What is the difference between an aerobic and anaerobic sealant?