Maintenance work on the superstructure
8.10 Hydraulic system
16.08.2018
Maintenance manual 3 302 577 en 8 - 83
GMK7450
Draining oil
• Place a receptacle underneath the valve.
• Screw the connecting piece and hose on to
the valve (1) and drain the oil;
à Handling
the valves
, P. 7 - 98.
• Change the filters; à P. 8 - 78.
Topping up the oil
• Remove the cap (3).
For truck cranes with a Mega-Wing-Lift
• Add the new oil through a strainer until it
reaches the middle of the inspection
glass (1).
For truck cranes without a Mega-Wing-Lift
• Add the new oil through a strainer until it
reaches the middle of the inspection
glass (2).
• Replace the gasket (4) if necessary and fas-
ten the cap (3).
s
O
Risk of environmental damage due to leaking consumables!
Use the supplied connecting piece and hose and a receptacle with sufficient
capacity to drain the hydraulic oil.
S
Risk of damage to the hydraulic system!
Cleanliness is of the utmost importance when handling hydraulic oil.
Even fresh hydraulic oil must be filtered before it is added to the tank.
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