Maintenance work on the superstructure
8.6 Hydraulic system
8 - 44 3 302 649 en Maintenance manual
GMK4090
07.12.2017
Establishing
the operating
condition
After having changed the oil filters and topping up the oil, you must re-
establish the operating condition.
Opening the valve
• Open the flap (1).
• Pull the locking bar (3).
• Open the valve – lever (2) parallel to the line.
• Insert the locking bar (3).
• Close the flap (1).
• Start the engine (from the crane cab).
• Carry out all hydraulic functions several times to remove any air in the
system.
• Check that none of the oil filters is leaking.
• Check the oil level through the sight glass on the hydraulic oil tank.
Top up oil if necessary;
à p. 8 - 43.
S
Risk of damage to the hydraulic pumps
Open the valve prior to starting the engine.
This prevents damage to the hydraulic pumps.
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