Maintenance work on the superstructure
8.6 Hydraulic system
8 - 42 3 302 649 en Maintenance manual
GMK4090
07.12.2017
8.6.10 Changing the hydraulic oil
The oil only needs to be changed if the laboratory analysis results indicate
this;
à Taking oil samples, p. 8 - 37.
Oil, spare parts,
tools
– Connecting piece and hose (tool box); à p. 7 - 102.
– One or more receptacles, about 505 l (134 gal); à p. 2 - 4.
Prerequisites – The truck crane must be level and in on-road mode; à Operating manual.
– The engine is not running and is secured against unauthorised use;
à p. 2 - 3.
– The oil filters also have to be replaced; à p. 8 - 39.
Closing the valve
• Open the flap (1).
• Pull the locking bar (3).
• Close the valve – lever (2) at right angles to
the line.
• Insert the locking bar (3).
• Close the flap (1).
• Be sure to secure the engine against unau-
thorised use.
Hydraulic oil
in litres (gal)
Designation
acc. to
DIN 51502
Specifications
Classification
GROVE part no.
505 (134) HVLP DIN 51524-3
Viscosity: ISO-VG 32
04162158
Castrol Hyspin
AWH-M 32
S
Risk of damage to the hydraulic pumps
Be sure to secure the engine against unauthorised use.
If the engine is started while the valve in the suction line is closed, the
hydraulic pumps will be damaged.
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