2.3. Precautions for maintenance Safety Supporting the boom When work needs to be conducted under a raised boom then the boom must be supported against the danger of suddenly falling. NOTE Use only the prescribed supporting prop to support the work unit. Never use other objects as supports. 1. Park the machine on a piece of level, solid ground. 2. Put the parking brake on. 3. Place the wheel chock in front of the wheels to prevent the machine from rolling away. 4. Raise the boom to the desired height. 5. Switch the engine off. Danger of injury caused by boom! It is only permitted to step into the area below the boom if the boom is supported. 6.
Position the supporting prop underneath the boom. 7. With the engine switched off, lower the boom slowly until it rests safely on the supporting prop. 8. Set the drive direction selector to "N" and move the working hydraulic's catch lever to position "1". Tipping up the driver's cab 1. Park the machine on solid, level ground. 2. Lower the work unit to the ground and switch off the engine. 3. Close the cab door. 4. Use the locking bolt to secure the articulated steering (cross- reference "Securing the articulated steering", Page 2-24). 2-22 WA90-5 – VEAM270100 WARNING WARNING