OPERATING INSTRUCTIONS

Inspection and servicing

CENTRAL LUBRICATING Design

The excavator is equipped with an automatic central lubricating system which provides grease regularly to all greasing points except those mentioned in the "Lubricating chart - Grease".

The central lubricating system is activated when the electrical system is switched on with the keyswitch and the electric motor is running. All greasing points connected to the system are greased at regular intervals.

The central lubricating system is controlled electro-hydraulically by the programmable SPC contoller.

The SPC is located in a switch box underneath the cab.

Lube cycle / Pause period

" To set length of lube cycle, alter the code number in window (1)

" To set length of pause period, alter code with switch in window (2)

Fig. 3-96:

The facia on the SPC controller has coding switches that can be used to set the length of lube cycle and pause period as listed on the setting scales (3, Fig. 3-96:)

Fig. 3-97:

If a fault occurs, BCS gives a warning on the screen (2, Fig. 3-97:). Actuat the "Reset" button (5, Fig. 3-96:) to eleminate the fault. Is this is not possible, call in servicing personal.

For further information on the function and setting refer to the TECHNICAL HANDBOOK – SPC (storage-programmable control)

Operating Instructions Rh 120 E

Inspection and servicing

Function

The grease is pumped by the pump (2, Fig. 3-98:) via greasing lines from the grease container to the main distributors on the superstructure.

As soon as the grease container is empty, the BCS (Fig. 3-100) gives a warning signal. In the event of a fault, the "dumping" function is switched off automatically after 15 min.

Work can be continued when the grease container is filled with grease.

Operating Instructions

Inspection and servicing

Replacing the grease drum

" Detach lines (11, 12, 13 and 14 Fig. 3-101:).

" Unscrew wing nuts (6).

" Detach plate (5).

" Remove cover (4) together with grease pump (2) from grease drum (1).

" Replace the empty grease drum by a full one.

" Place cover (4) with grease pump (2) back onto the grease drum.

" Fasten plate (5) with wing nuts (6) on grease drum (1).

" Refit lines (11, 12, 13 and 14).