Operator's manual – Page 85
13 Engine and air-conditioning unit
13.1 General
This Operating Manual contains no detailed information on servicing, starting or maintaining the
diesel motor. It provides only auxiliary, important and machine-related data. Please refer to the engine
manufacturer’s Operating Manual for detailed information.
13.1.1 Welding work
If welding work is carried out on the machine, the following precautions must be taken to protect
the electronic components.
1 Disconnect the earth cable from battery to machine.
2 Remove all connectors to ECU and injection pump.
3 Clamp earth gripper of welding unit to the part to be welded. Not over a long distance, since earth
can be restored by cable or similar. This could result in damage.
13.2 Inspection cooling water
The coolant level must be checked every day prior to beginning work. This is easily done by opening
the right casing (see chapter opening side casing). The
level in the cooling unit must completely fill the gauge (A).
Additionally, the level in the expansion cylinder is continually
monitored and displayed on the display (see „Status
displays“). If the display lights up during operation, the
coolant is low and must be replenished immediately. This
is achieved by tipping the cab (see chapter tilting cab). The
coolant cover (B) is located toward the rear under the cover.
When the engine is warm, the coolant circuit is under
pressure. Be carefully when opening the radiator cap
not to be burned by spraying steam.
The cab cannot be tilted completely, as otherwise
the heater would be above the level of the radiator,
resulting in the potential formation of air bubbles in
the system.
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