MAINTENANCE 4.14 EVERY 3000 OPERATING HOURS HOWEVER AT LEAST ONCE A YEAR 4.14.3 PTO (PUMP DISTRIBUTOR GEAR) - CHANGE OIL Legend for illustration Z 20696 (1) Oil level gauge (2) Oil filler plug (3) Breather filter (4) Oil drain plug (7) Oil collector reservoir for adapter housings of hydraulic pumps for fan drives of radiator and hydraulic oil coolers (8) Breather filter with oil level gauge (9) Adapter housings for main hydraulic pumps (10) Oil level plug (11) Oil filler plug with breather pipe (12) Oil drain plug Gear Oil Viscosity Select gear oil viscosity grade according to ambient tempera- tures.
If the new gear oil has a different viscosity grade compared with the drained oil it is necessary to enter the new viscosity grade into the appropriate ”Excavator Components” group. Refer to page 80 for the INPUT procedure of the oil viscosity. NOTICE Before opening the access covers from below the pump dis- tributor gears provide an adequate working platform with sufficient space for the oil collecting container (approx. 200 liters for both gears). 463