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| User’s Manual
5.4 Storage
When storing the Sentinel it must be placed in a room which complies to the following requirements:
• The room must be dry with a relative humidity of 45-75%.
• The ambient temperature of the storage area must be between -10 and 40°C for uid handling
components. In case of electronic components the storage temperature should be at least 0°C.
• The room where the machine or parts are stored must be free from dust otherwise the uid handling
components must be sealed with plastic foil.
If the Sentinel is stored for over a year, specic care is needed. Please contact Parker Hannin in case longer
storage is required. Otherwise, warranty may not be valid.
6 Maintenance
This chapter describes how to maintain the Sentinel.
6.1 Safety Precautions
Only qualified personnel should carry out maintenance procedures on the Sentinel.
Make sure the system is switched off completely and the power supply is locked before carrying out any
maintenance activities.
Make sure the system is completely depressurized before carrying out any maintenance activities.
After disconnecting any part, immediately block open ports with clean plugs to prevent dirt from
infiltrating the hydraulic system.
See Chapter 2 for more information and safety precautions.
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