Title: Identify the cause of seal failure.
Course: Diesel Equipment Technology III (20107-III) > Section: Hydraulics: Servicing Actuators

Identification should include

- performing visual checks and operational tests to verify the operation of each actuator
- taking an oil sample
- disassembling the actuator to access seals and determine the cause of failure
- repairing, as necessary.

Process/Skill Questions:

- What is the No. 1 cause of hydraulic seal failure?
- What procedures need to be followed when making a seal repair?