MAINTENANCE BASICS CLEANING THE MACHINE Always keep the machine clean. Ensure that grease nipples, air vent holes, and oil level indicators are always clean. Avoid con- tamination of operating agents with impurities. This will reduce malfunctions to a minimum. If somebody accidentally lowers the bucket while cleaning is being performed under the boom, this may lead to se- vere accidents! Before you start performing cleaning work under the boom, either support the bucket or lower it onto the ground. If you have to perform cleaning work under the boom and you cannot support the bucket, park and secure the machine as fol- lows: 1. Park the machine on level ground. 2. Apply the parking brake. 3.
Place wheel chocks in front of the wheels to prevent the ma- chine from rolling away. 4. With the bucket in its dumping position, lower the bucket on- to the ground with either its cutting edge or teeth. PRECAUTIONARY MEASURES WHEN CLEAN- ING THE MACHINE Pay attention that water does not get into the electrical sys- tem. Do not point a water or steam jet directly at the radiator. FIRE PREVENTION Do not use any highly inflammable cleaning agents for cleaning of parts. If – by way of exception – you have to use inflammable cleaning agents, keep the cleaning agent away from fire and do not smoke while you are working. 7-3