When you're servicing your airline, just don't forget your kneepads... A helmet and gloves are also sometimes helpful. It's all PPE these days.What is the value of line service / ramp work, at the airlines, in gaining experience or finding opportunities for a career in aviation, especially in terms of becoming a part 121 pilot?
Subquestion, does it make a difference which airline you service?
Crawling around down there among those giant gear actuators removing impediments like chocks so those huge tubes can move forward... That can be dangerous.
And for sure don't get any Jet A or Prist on your skin or in your mouth. You might even want eye protection and a raincoat.