SAFETY MEASURES DURING MAINTENANCE 11.3.7 USE OF LIGHTING Always use explosion-proof lighting when checking fuel, oil, cool- ant, or battery acid. 11.3.8 HIGH-PRESSURE HOSES Neither bend high-pressure hoses nor hit them with hard ob- jects. Do not use piping or hoses with fissures, cracks, or bends, since they may burst during operation. Immediately replace any loose or damaged fuel or oil hoses. Leaking fuel or oil involves danger of fire and slipping. Replace all hoses every six years at the latest. 11.3.9 HANDLING HIGH-PRESSURE OIL Always take into account that the hydraulic lines are subjected to high pressure.
Do not top up oil, drain oil, or perform maintenance or inspec- tion measures unless the work unit is completely lowered and the system is depressurised. If oil comes out under high pressure, this involves danger of an oil jet penetrating the skin or getting into the eyes. For this rea- son, always wear safety goggles and thick safety gloves, and use a piece of cardboard or wood when checking for oil leaks. If you have been hit by an oil jet, immediately go and see a doctor and explain what has happened. 40