This manual covers the Liebherr R 912 LITRONIC excavator, with serial numbers beginning from 4001. Designed for demanding operational environments, this excavator exemplifies Liebherr's commitment to robust engineering and reliable performance. Its advanced LITRONIC system offers precise control and efficiency, making it a versatile tool for a wide range of construction and earthmoving tasks. Understanding and adhering to the guidelines within this manual ensures optimal utilization and longevity of your equipment. The purpose of this comprehensive manual is to provide essential information for both operators and maintenance personnel. It details product descriptions, crucial safety guidelines, operational procedures, troubleshooting guidance for malfunctions, and in-depth maintenance schedules. By thoroughly familiarizing yourself with its contents, you can enhance operational safety, minimize downtime, reduce repair costs, and extend the service life of your Liebherr R 912 LITRONIC excavator. This document is an indispensable resource for maintaining the machine's peak performance and reliability.