7 CARE AND MAINTENANCE
7.26 MHL380 D
7.7.1 Automatic central lubrication sys-
tem for uppercarriage, loading
equipment and work attachment
mounting
Various lubricating points are connected to
the automatic, time-controlled central lubrica-
tion system.
h Chapter 7.7 Overview of lubricating points
Operating principle
The lubricating pump (176/1), which consists
of a grease reservoir, agitator and pump,
supplies the lubricating points with lubrication
grease via several distributors (176/2).
The main control (176/5) switches the pump
on and off automatically. The pre-set grease
lubrication pause time is 28 minutes. It can
only be changed by a service engineer in the
service menu (176/6). An additional lubrication
cycle can be activated if necessary.
h Chapter 7.7.4.1 Triggering an additional
lubrication pulse
The distributor of lubricants (176/2) transports
the lubrication grease to other distributors and
directly to the lubricating points (176/3) via
pistons. A piston detector (176/4) is connect-
ed to one of the distributors. It detects the
piston movement in the distributor. If no piston
movement is detected within a number of lu-
brication cycles, it is assumed that there is a
fault. An error message appears in the main
control display on the multifunction monitor
(176/6). Automatic lubrication stops.
h Chapter 7.7.4.2 Lubrication when lubricat-
ing pump is faulty
Fig. 176 Operating principle of central lubrication
system
1 Lubricating pump
2 Distributor
3 Outgoing lubricating pipe to another distributor or a
lubricating point
4 Piston detector
5 Main control
6 Multifunction display