MAINTENANCE 4.6 LUBRICATION AND MAINTENANCE SCHEDULE 4.6.4 EXTENDED SERVICE INTERVALS FOR ENGINES WITH ENGINE OIL MANAGEMENT SYSTEM REMARK The engine oil management system of each engine combines the automatic engine oil supply system "Reserve" and the oil burning system "Centinel" in connection with the "Eliminator" oil filtration system.
Legend for illustration Z 22450 (1) Engine oil level gauge (2) Oil filler tube (3) Oil filters for the engine oil reserve system (4) Suction line from reserve tank (5) Suction line to pumping unit (6) Supply line from pumping unit to crankcase (7) Withdrawal oil line from engine oil pan to pump (8) Ventilation line for reserve tank (9) Breather filters (10) Sensor, crankcase blowby pressure. (11) Oil feed-back line to reserve tank (12) Pumping unit, located in the cross member opposite of the oil filters (3). Servicing Intervals G Every 10 operating hours Check oil level in both engine oil pans with Excavator standing on level ground, using oil level gauge (1).
Check also oil level in both reserve tanks, see illust. Z 22452A. REMARK The oil level in the engine oil pan can vary between the MIN and MAX marking on gauge (1) depending on the operating con- dition of the reserve system when the engine was stopped. With sufficient oil in the reserve tank and with the reserve system in proper working order, there is no need to fill the engine oil pan even with the oil level at the MIN mark on gauge (1). If the oil level is below the MIN marking on the gauge, corrective action must be taken. Fill the reserve tank and check the reserve system.
The function of pumping unit (12) is monitored by an indicator light located on the "X2" switch board in the cab base. See section "SWITCH BOARD (X2) IN CAB BASE" for more information. Be sure to fill the corresponding reserve tank of rear engine -1- or the reserve tank of front engine -2- when the information message "Engine oil reserve tank 1 (or 2) empty" is being dis- played on the ECS screen in the operator’s cab. 297