OPERATING INSTRUCTIONS 6015 / RH40E Inspection and servicing

Removing and installing the battery

Read and observe the "Inspection and servicing – Safety instructions" chapter.

Wear protective gloves and firm working clothing. Shut off the engine before removing the batteries to avoid damaging the alternator and the regulator.

Turn key in key-switch to position "0" and withdraw.

Switch battery main switch to position II / OFF (Fig. 3-50:).

Disconnect and reconnect the terminal clamping lugs in the prescribed order.

Disconnecting and connecting in the wrong order may cause short-circuits.

The 12-volt batteries are connected in series and in parallel, so that the system voltage is 24 volts.

The batteries are located under the hatch (5, Fig. 3-49:).

 Open hatch (5).

 Unscrew battery holder (3, Fig. 3-51:).

 Disconnect the cable lug from the negative terminal of the battery.

 Disconnect the cable lug from the positive terminal of the battery.

 Insulate the cable lugs.

 Take out the batteries (1).

Before installing the new battery, the contact faces of the battery terminal posts and the cable lugs must be cleaned down to the bright metal.

 Install the new batteries.

 Connect the cable lug to the positive terminal of the battery.

 Tighten the clamping screw of the cable lug. Do not use too much force to avoid deformations.

 Connect the cable lug to the negative terminal of the battery.

 Apply special terminal grease or acid-free vaseline on the battery terminal posts and clamping lugs. Loose or corroded clamping lugs will lead to alternator or regulator overloading.

 Fix battery holder (3).

Hydraulic System

Hydraulic system - Safety instructions

Read and observe the "Inspection and servicing – Safety instructions" chapter.

Before working on the hydraulic system, make sure that the system is without pressure and that the residual pressures have also been eliminated. Shut off the engine.

Risk of burning caused by hot hydraulic components (e.g. hydraulic oil reservoir, cylinder, valves). Secure the machine as described in the "Securing the mmachine section.

Avoid skin contact with hydraulic oil.

Contact with hydraulic oil can cause skin injury. Wear protective gloves and firm working clothing.

Depressurizing the hydraulic system

Hydraulic systems may only be opened if they are completely depressurized. Even when an excavator is parked on a horizontal surface with the working equipment resting on the ground (Fig. 3-52:and Fig. 3-53:) and with its drive engine stationary, there may still be a considerable amount of residual pressure in parts of the hydraulic system, as e.g. the primary pressure resulting from the last hydraulic movements before the immobilization.

Residual pressures disappear only gradually. If work is to be carried out on the hydraulic system immediately after the immobilization, the system must be freed from pressure, i.e. depressurized:

 Locate the system section to be opened.

 Depressurize the section to be opened. If required, the necessary measures described must be combined.

 Open the depressurized system section with caution.

Examples of system sections:

1) working hydraulics

2) servo control circuit

3) precharged return-flow line

Detailled information can be found in the “Technical Handbook, section 8, Hydraulic System”.