Operation
Hydraulic system
6.18 Hydraulic system
WARNING
The hydraulic system is under high pressure.
Hot hydraulic fluid may emit from leaks and cause severe injuries! The prestress
of the pressure reservoirs is present even when the remaining hydraulic system
is already pressureless. When dirt, even only in the smallest quantities, enters the
hydraulic system, this may lead to serious damage to the complete hydraulic system.
– Work on pressure reservoirs of the machine may only be performed by trained
personnel.
– When working on the pressure reservoirs, the machine must first be rendered
completely pressureless.
– The pressure reservoirs themselves may in no case be damaged or opened,
because substantial injuries to people can occur due to the constant prestress.
– During all work on the hydraulic system, ensure extreme cleanliness.
(1) Hydraulic oil level
(2) Hydraulic oil temperature
Check the hoses of the hydraulic system for aging and damage on a regular basis!
Immediately exchange damaged or aged hoses. Use only original ROPA hoses or
hoses fully conforming to the technical specifications of the original hoses! Observe
the regionally applying safety regulations on the service life of hydraulic hoses.
The hydraulic system is operational after the diesel engine has been started. To spare
the hydraulic system, the engine rotational speed during the first minutes (about
5 min.) after a cold start should in no case exceed the value of 1,300 rpm. Even higher
rotational speeds for short times should be avoided. Use the park heating to preheat
the hydraulic oil.
At outside temperatures below +10 °C proceed as follows when starting work and
switching on the machine: shut off the drives for recleaning and pickup before switch-
ing on the machine drive. To do this press the keys (9), (8) and (7) on the right joystick
in succession. These drives will be displayed with grey arrows on the R-Touch. Switch
on the machine drive by briefly pressing the key (6) on the right joystick. The hydraulic
system is operating and the rollers are stationary. Wait two to three minutes before
switching on the drives one after the other.
If the temperature of the hydraulic fluid is 70° C or higher, or when the icon is dis-
played on the R-Touch, immediately clean the hydraulic oil cooler.
The fan drive of the hydraulic oil cooler automatically reverses when the engine is
started. So that soiling is removed to a great extent independently.
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