MAINTENANCE 4.6 LUBRICATION AND MAINTENANCE SCHEDULE 4.6 LUBRICATION AND MAINTENANCE SCHEDULE 4.6.1 INITIAL SERVICING AFTER THE FIRST 250 OPERATING HOURS Change oil in Swing gears, Travel gears and PTO’s (pump distrib- utor gears). Thereafter every 3000 hours, but at least once a year. An oil sample analysis should be made every 1000 operating hours. Hydraulic system: Replace return oil filter elements and leakage oil filter element. Inspect return oil strainers. Thereafter every 1000 hours. AFTER THE FIRST 250 AND 1000 OPERATING HOURS Check tightening torque of high strength bolt connections. There- after every 1000 hours.
The swing circle connection bolts need only to be checked after the first 1000 operating hours in accor- dance with PARTS&SERVICE NEWS No. AH00511 filed in vol- ume 2 binder. NOTICE The above initial service is of vital importance for proper operation and long service life of the machine. 4.6.2 PERIODIC SERVICING INTERVALS All following intervals of time between services are based on average operating conditions. Under unusually severe conditions of operation, reduce the interval of time between services. NOTICE The periodic servicing intervals are also displayed on the ECS screen. Carry out the maintenance work of indicated service inter- vals according to this maintenance section. 289