Lubrication and maintenance operations

3.6.20 Engine air intake check

Check the engine air intake always on the machine which is parked on a flat and solid surface, with the machine engine and battery disconnecter off.

Engine air intake check procedure:

• Check the hole (1) in the engine bonnet (2).

• The hole (1) must be without any dirt.

• Open the engine bonnet (2).

• Check the condition of brushes (3); in case they are excessively worn, replace them.

• Close the engine bonnet (2).

Check the engine air intake when the machine is parked on a flat and solid surface with the engine and battery disconnecter off.

Wear the prescribed personal protective equipment when checking the engine air intake.

There is a risk of burns from the hot parts of the engine.

Keep the hole in the engine bonnet clean. Keep the brushes in an undamaged state. There is a risk of damaging the engine.

3.6.21 Hydraulic oil cooler cleaning

Perform cleaning of the hydraulic oil cooler when the machine is parked on a flat and solid surface with the engine and battery disconnecter off.

Check the hydraulic oil cooler fins (1) that they are not dirty or clogged.

The cooler clogging results in reduced cooling effect and increased temperature of the hydraulic oil.

When the machine works in a very dusty environment, clean the hydraulic oil cooler daily.

Cooler cleaning procedure:

• Open the engine bonnet (2).

• Disconnect electrical wiring (3).

• Dismount the fan (4) by means of screws (5).

• Clean the hydraulic oil cooler with compressed air, in the direction out of the bonnet.

• Mount the fan (4) using the screws (5).

• Connect electrical wiring (3).

• Close the engine bonnet (2).

Perform cleaning of the hydraulic oil cooler when the machine is parked on a flat and solid surface with the engine and battery disconnecter off.

When cleaning the hydraulic oil cooler, wear the prescribed protective equipment.

There is a risk of burns from the hot parts of the engine.

Clean the hydraulic oil cooler only with compressed air. Caution! The cooler clogging results in reduced cooling effect and increased temperature of the hydraulic oil.