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CytroPac | Commissioning
Bosch Rexroth AG, Edition 07.2022, RE 51055-B
8�1 First commissioning
8�1�1 Before commissioning
▶ Check the safe condition of electric and hydraulic lines.
▶ Make sure that the cooling water system is in operation.
▶ Make sure that the pressure relief valve is installed in the pressure line.
The hydraulic power unit is not equipped with an integrated pressure relief
valve. Make sure that the pressure line is secured with a pressure relief valve
set to the correct value (10 % over operating pressure).
Manual operation for mating connector R901460889 can be used for
commissioning, however, must be removed in operation.
Jog mode is generally not permitted with the CytroPac.
8�1�2 Filling the hydraulic power unit
Recommendation: Experience has shown that the cleanliness class required
for the operation of the machine/system is already exceeded with new
hydraulic fluids in the original packing drum.
If you want to ensure the cleanliness class, carry out the filling of the
hydraulic power unit using a special filling unit, or use a filter station with
a 10 µm fine filter.
▶ Make sure that the maximum filling pressure does not exceed 2 bar.
The hydraulic power unit can be filled as follows, see Fig. 26:
1. Via the filling and breathing filter (standard)
2. Via an optionally available filling coupling (filling device), which is mounted on
the return flow (G1/2)
To fill with the filling coupling, proceed as follows:
▶ Install the filling coupling at the hydraulic power unit as illustrated in Fig. 26.
▶ Replace the air filter in the assembly kit against the filling and breathing filter
and ensure that filling is no longer realized via the air filter.
The filling level must be within the marking on the filling level indicator.
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