Title: Identify the causes of pump failure, unusual pump noises, temperature, flow, and leakage problems.
Course: Diesel Equipment Technology III (20107-III) > Section: Hydraulics: Servicing Pumps

Identification should include

- following the manufacturer troubleshooting guide for the hydraulic system
- using all required tooling and parts
- determining any action.

Identification may indicate possible causes including

- low oil level
- wrong oil
- aeration and cavitation of the pump
- faulty or dirty cooler
- worn cylinder seals
- damaged cylinders.

ASE 2: VIII. Hydraulics: B. Pumps

Process/Skill Questions:

- What are the causes for aeration and cavitation of the hydraulic pump?
- What procedures need to be performed if a hydraulic pump fails and sends metal through the hydraulic system?
- What are the signs of an overheated hydraulic pump?