INTRODUCTION 1.3.3 MAIN CHARACTERISTICS q Simple and easy operation. q Servo-assisted steering with priority hydraulic system. q Three steering modes selected by means of microswitches in pairs. - Two-wheel steering (2WS) - Four-wheel steering (4WS ROUND) - Four-wheel steering (4WS CRAB) q 4-gear mechanical gearshift and transmission with hydraulic converter; reversal controlled by a lever positioned under the steering wheel. q Loader control through a single servo lever ensuring also combined movements that can be modulated propor- tionally and continually. q Backhoe controls through mechanical levers ensuring also combined movements that can be modulated propor- tionally and continually.
On request, the backhoe can be controlled by means of two servo levers. q Complete series of instruments visible from the two operating positions (loader or backhoe). q Separate accelerator controls for the two operating positions. q Foot brake control. q Easy maintenance with simplified intervals. q Automatic engagement and disengagement of the differential locking on both axles (front and rear). 1.3.4 RUNNING-IN Every machine is scrupulously adjusted and tested before delivery. A new machine, however, must be used carefully for the first 100 hours, in order to ensure proper running-in of the various components.
If the machine is subjected to an excessive work load at the beginning of its service life, its productivity and func- tionality will be untimely reduced. Every new machine must be used carefully, paying special attention to the following indications: q After the start, let the engine idle for 5 minutes, in such a way as to warm it up gradually before actual operation. q Avoid operating the machine with the limit loads allowed or at high speed. q Avoid abrupt starts or accelerations, useless sudden decelerations and abrupt reversals. q After the first 250 hours of use, carry out the following operations, in addition to those to be performed every 250 hours:
1 - Change the hydraulic transmission oil and filter. 2 - Change the differential unit oil (front and rear axle). 3 - Change the final reduction gear oil (front and rear axle). 4 - Change the hydraulic circuit oil filter. SYNTHETIC BIODEGRADABLE OIL TYPE HEES On machines in which the synthetic biodegradable oil type HEES is used, the following operations are to be per- formed together with the standard maintenance operations. q After the first 50 hours of operation, change the hydraulic circuit drain filter. q After the first 500 hours of operation, change the hydraulic circuit oil.
IMPORTANT q When changing the oil filters (cartridges), check their innner part to make sure that there are no depos- its. If abundant deposits are observed, find out what may have caused their accumulation before starting the machine. q The number of operation hours is indicated by the hour meter. 5