Maintenance work on the carrier
7.15 Hydraulic system
7 - 102 3 302 649 en Maintenance manual
GMK4090
07.12.2017
Handling
the valves
The valves can only be opened and closed using the connecting piece and
hose. The connecting piece is available in the toolbox.
• Fit the hose on to the connecting piece and put the other end of the hose
into a receptacle.
• A – Remove the cap and screw the connecting piece and hose onto the
valve – the valve will open.
• Drain the oil.
• B – Remove the connecting piece and hose – the valve will close.
• Screw the cap on to the valve.
S
Risk of damage to the hydraulic pumps
Be sure to secure the engine against unauthorised use.
If the engine is started while the valves in the suction line are closed,
the hydraulic pumps will be damaged.
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.
G
Danger due to escaping hydraulic oil
When the connecting piece is screwed on to the valve, the valve opens and
the hydraulic oil immediately flows out of the connecting piece. Holding it
by the connecting piece, place the hose into a suitable receptacle before
screwing on the connecting piece.
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