Maintenance work on the superstructure
8.6 Hydraulic system
8 - 42 3 302 364 en Maintenance manual
GMK 4100L-1
25.11.2016
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 - 108.
– One or more receptacles, approx. 650 ltr (172 gal);
à p. 2 - 4.
Prerequisites – The truck crane must be level and in on-road mode; à Operating
Instructions
.
– The engine must be switched off and secured against unauthorised use;
à p. 2 - 3.
– The oil filters must be removed;
à Changing the hydraulic oil filter,
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).
• Leave the flap (1) open.
Hydraulic oil
in li
tres (gal)
Designation
to DIN 51502
Specification
classification
GROVE part no.
650 (172) 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.