Checking and controlling the hydraulic system

Checking and controlling the hydraulic system

The hydraulic system is designed in such a way as NOT to need routine maintenance operations. However, it is advisable to check the LEVEL OF THE HYDRAULIC FLUID contained in the reservoir:

The level in the reservoir varies considerably during the operating cycle:

• it should be checked with the HOOD IN THE OPEN POSITION and with the hood cover closed.
• the level must between the two notches A and B on the reservoir itself and it must never exceed the maximum level !

TYPE OF OIL: NOT AVAILABLE
QUANTITY: 0.61 l

(*) Oil present in vehicles from chassis no. 6.023.807. It is not possible to top-up the hydraulic circuit in previous versions: change oil as prescribed (see specific paragraph).

Preliminary notes for service operations

• the system is SELF-RELIEVING and does not require specific operations since any bubbles of air flow towards the reservoir where they split.
• before working on the system, set the ignition key to STOP: (this way the pressure of the hydraulic circuit is discharged immediately)
• when disconnecting a pipe it is necessary to make sure that the open ends are directed upwards and plugged as soon as possible: this way it is not necessary to drain the circuit each time work on the system is necessary.

VEHICLE INTERVENTIONS

CHANGING HYDRAULIC SYSTEM OIL

• Open the hood completely, close the hood cover (pistons closed) and remove the key.
• Remove the reservoir cap and suck the oil with a specific pump. Be careful to suck up all the oil in the reservoir.
• Move the hood by hand. Perform a complete closing/opening cycle. More oil should flow into the reservoir.
• Suck up all the oil in the reservoir.
• Add Tutela GI/R oil into the reservoir (in the same amount as the oil sucked out) and refit the cap.
• Run 3-4 complete closing/opening cycles by means of the automatic function.
• Make sure the level is correct.

IMPORTANT: If you are changing oil of the previous type (vehicles to chassis no. 6.023.807), repeat the operation twice more to avoid contamination between the two oil types.