Maintenance work on the superstructure
8.7 Hydraulic system
16.11.2018
Maintenance manual 3 302 756 en 8 - 57
GMK6400
8.7.9 Changing the hydraulic oil
The oil only needs to be changed if the laboratory analysis results indicate
this;
à Taking oil samples, p. 8 - 51.
Oil, spare parts,
tools
– Connecting piece and hose (toolbox); à p. 7 - 100.
– One or more receptacles, about 1320 l (349 gal); à p. 2 - 4.
Prerequisites – The truck crane must be level and in on-road mode; à Operating manual.
– The engine must not be running and must be secured against unauthor-
ised use; Ã p. 2 - 3.
– The oil filters must have been removed; à Changing the hydraulic oil filter,
p. 8 - 53.
Closing the valves
• Close the valves – lever (1) at right angles to
the line.
s
Hydraulic oil
in litres (gal)
Designation
to DIN 51502
Specifications
Classification
GROVE part no.
1320 (349) 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 03328286
S
Risk of damage to the hydraulic pumps!
Be sure to secure the engine against unauthorised use.
The hydraulic pumps will be damaged if the engine is started while the
valves in the suction line are closed!