MAINTENANCE BASICS 22.2 CLEANING THE MACHINE Always keep the machine clean. Ensure that grease nipples, air vent holes, and oil level indicators are always clean. Avoid contamination 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 severe 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 follows: 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. 22.2.1 PRECAUTIONARY MEASURES WHEN CLEANING THE MACHINE Do not point a water or steam jet directly at the radiator. Pay attention that water does not get into the electrical system. 22.2.2 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.
22.3 WORKING-AREA-DEPENDENT MAINTENANCE 22.3.1 MUDDY OR WET WORKING AREAS Immediately clean the machine after work to protect the components against corrosion. Perform maintenance and lubrication measures more frequently when working in areas with unfavourable working conditions. If the machine is used in water, lubricate bolts daily - see page 148 and page 162. 22.3.2 DUSTY WORKING AREAS Adhere to the following measures when working in dusty working areas: Pay attention to the warning lamp of the air filter to detect a blocked air filter insert in time. In addition, clean the air filter insert more frequently than specified in the maintenance schedule.
Frequently clean the external surfaces of the radiator to ensure unobstructed flow of air. Replace the fuel filter cartridge more frequently than specified in the maintenance schedule. Clean all electrical components, especially the starter and the generator. 123