Title: Check the door glass and window operation.
Course: Diesel Equipment Technology I (20107-I) > Section: Preventive Maintenance and Inspection: Servicing the Cab and Hood Hardware

Checking should include

- visually inspecting the door glass and window for cracks/chips or discoloration
- operating the door glass and window in both the fully open and fully closed positions.

Process/Skill Questions:

- What is the proper procedure when a crack or chip is found in the door glass or window?
- What are some common reasons for the door glass or window not to operate properly?