OPERATING INSTRUCTIONS 6015 / RH40E Inspection and servicing Depressurizing Park the excavator on a horizontal surface. Set the working equipment on the ground. Shut off the drive engine, keep sitting on the driver’s seat. Sections 1 and 2, servo control and working hydraulics: Switch on electrical system (“Ignition ON”). Shift both control levers and all pedals repeatedly into all directions (Fig. 3-54:).
Fig. 3-55:
Topping up with hydraulic oil Remove cover (20, Fig. 3-56:) and retaining disk (23). One of the return-flow filters is now visible in the filter chamber. Fill in hydraulic oil through this return-flow filter until the oil level lies between the ½ and ¾ marks of the inspection glass (oil grade see: "Refilling quantities - Oil").
Fig. 3-54:
Section 3. return-flow line: After shutting down the engine, the precharging pressure decreases rapidly through the precharging valve. No measures are required before opening the return-flow line.
Before fitting retaining disk (23) and cover (20), check sealing ring (26) and replace if damaged. Fit cover together with sealing ring.
Checking the hydraulic oil level Bring hydraulic oil to operating temperature (abt. 50 °C / 122° F). Park the machine on a horizontal surface. Move all hydraulic cylinders to their central positions. The oil level must lie between the ½ and ¾ marks of the inspection glass (1, Fig. 3-55:). Two sensors are monitoring the hydraulic oil level in the hydraulic oil reservoir. If the warning lamp comes on, shut off the engine. Trace out the fault and eliminate.
Fig. 3-56:
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BA RH40E(3 725 069.00)-EN
