Manitowoc Grove GMK 4100L-1 Maintenance Manual page 277

Changing oil
filter 2
After changing the
filter
S
Maintenance manual
GMK 4100L-1
Risk of damage to the hydraulic pumps
The engine may only be started if the valve in the suction line of the
hydraulic pumps is open and there is enough hydraulic oil in the hydraulic
oil tank.
•
Check the valve on the hydraulic oil tank. Open the valve, if necessary;
à
p. 8 - 44.
•
Check the oil level. Top up the oil, if necessary;
•
To bleed the system (from the crane cab), start the engine and let it idle
for 3 minutes.
•
Check that none of the oil filters is leaking.
•
Release the receptacle (1) at the hexagon.
•
Change the filter (2).
•
Replace the gaskets.
•
Fill the receptacle with clean oil and tighten
it – torque 25 Nm (18.5 lbf ft).
3 302 364 en
Maintenance work on the superstructure
8.6 Hydraulic system
à
p. 8 - 43.
8 - 41