Maintenance and Service
Hydraulic system
7.3 Hydraulic system
WARNING
Hazard from pressure accumulator!
The pressure reservoirs of the hydraulic system are constantly under high internal
pressure, even if the remaining hydraulic system is already rendered pressureless.
– Work on the pressure reservoirs may only be performed by especially trained per-
sonnel, familiar with handling of pressure reservoirs.
– Render the system pressureless before all work on the hydraulic system or on the
pressure reservoirs.
– Work on the hydraulic system may only be performed by people having been
instructed about the special risks and hazards when working on hydraulic systems.
Regularly check the hoses of the hydraulic system for aging and damage!
Immediately exchange damaged or aged hoses. Only use hoses for replacements
conforming to the specifications of the original hose!
For cost reasons, we recommend ordering replacement hoses directly from ROPA,
because original ROPA hydraulic hoses are generally significantly more economical
than competitive products.
7.3.1 Clean hydraulic fluid cooler
(1) Charge air cooler
(2) Hydraulic oil cooler
(3) Radiator
After each start of the engine, the fan of the cooling system is automatically reversed
for a short time. So that soiling is removed to a great extent independently. Consider
that a soiled cooler achieves a clearly reduced cooling performance. This will substan-
tially reduce the load capacity of the machine. If the hydraulic oil is too hot, shut down
the diesel engine and try to determine the cause. Usually, the hydraulic oil cooler (2) is
soiled.
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