Maintenance work on the superstructure
8.10 Hydraulic system
16.08.2018
Maintenance manual 3 302 577 en 8 - 81
GMK7450
Change oil filter 3
• Release the receptacle (1) at the hexagon
head.
• Change the filter (2).
• Replace the gaskets.
• Fill the receptacle with clean oil and tighten
it up.
• Check the visual display (3); à P. 8 - 78.
After changing the
filter
• Check the valves on the hydraulic oil tank. Open the valves, if necessary;
à P. 8 - 84.
• Check the oil level. Top up the oil, if necessary; à P. 8 - 83.
• To bleed the system, start the engine and let it idle for 3 minutes.
• Check that none of the oil filters is leaking.
• Check the visual indicator on the oil filter 3; à P. 8 - 78.
S
Risk of damage to the hydraulic pumps!
The engine may only be started if the valve in the suction line of the hydrau-
lic pumps is open and there is enough hydraulic oil in the hydraulic oil tank!
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