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10 Maintenance and repair
Maintenance tasks (inspection, maintenance, repair) must be defined according
to system-specific requirements, operating conditions (pressures, temperatures,
environmental conditions) and the operating life (duty cycle, cycle times,
shift operation).
The declarations made in this chapter are based on climate conditions in Central
Europe and common environments in the metal-processing industry.
A negative trend of test parameters like hydraulic fluid temperature,
short replacement intervals of filter elements or noise indicate changes. If
necessary, the troubleshooting matrix, see chapter 15.2 "Overview of the impact of
defects", provides support for the identification of the problem. Slow increase in
temperature and/or shorter filter replacement intervals indicate potential wear at
the pump, seals as well as aging of hydraulic fluid and should initiate inspection of
all relevant components. Immediate strong increases in temperature are alarming
and require immediate inspection of the machine/system.
For further information on the scope and time intervals for maintenance
and repair of the overall machinery/system, please refer to the operating
instructions of the machine/system manufacturer.
10�1 Cleaning and care
For cleaning and care of the hydraulic power unit, observe the following:
▶ Make sure that all seals and electric plug-in connections are firmly fitted
to prevent the penetration of cleaning agents and/or humidity into the
hydraulic power unit.
▶ Do not use aggressive cleaning agents for cleaning. Clean the hydraulic power
unit using a suitable cleaning liquid.
▶ Do not use a high-pressure washer.
▶ Do not use compressed air for the cleaning at functional interfaces.
▶ Remove external coarse dirt and keep sensitive and important parts like
electrical connections clean.
▶ For the cleaning, use a damp, non-linting cloth or residue-free industrial wipes.
Maintenance and repair | CytroPac
RE 51055-B, Edition 07.2022, Bosch Rexroth AG
57/80
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