Maintenance work on the carrier
7.13 Hydraulic system
03.11.2017
Maintenance manual 3 302 574 en 7 - 93
GMK3060
7.13.6 Changing the hydraulic oil
The oil only needs to be changed if the laboratory analysis indicates the
need for it;
à Determining the condition of the oil, p. 7 - 91.
Oil, spare parts,
tools
– Connecting piece and hose (toolbox).
– One or more containers, max. 800 l (210 gal);
à p. 2 - 4.
H
The central oil tank in the travel gear frame supplies the hydraulic system in
the carrier and in the superstructure. Not all of the oil of the original filling
is changed when changing the oil. There will be some remaining oil in the
cylinders and hoses.
Prerequisites
– The superstructure is slewed to the rear; à Slewing superstructure,
p. 7 - 86.
– The main boom is retracted and raised.
– The outriggers are retracted after the superstructure has been slewed to
the rear;
à Operating Instructions.
– The engine must not be running and must be secured against unauthor-
ised use;
à p. 2 - 3.
Closing the valves
• Close the valves (1) – lever at right angles to
the line.
• Pull the locking bar (3).
• Close the valve (2) – lever at right angles to
the line.
• Insert the locking bar (3).
• Secure the engine against unauthorised
use.
s
Hydraulic oil
in litres (gal)
Designation
to DIN 51502
Specification
Classification
GROVE part no.
800 (210) HVLP DIN 51524-3
Viscosity: ISO-VG 32
04162158
Castrol Hyspin
AWH-M 32
Designation Quantity GROVE part no.
Cover gasket 140 / 90 x 3 1
03199793
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