Maintenance After Prolonged Storage

Storage Conditions

Devices must be stored in a dry, ventilated room, protected from rain, water, and chemical agents. They must be protected against dust, rubble, and paint.

If stored for an extended period, the relative humidity in the room must be maintained below 70 %.

Storage temperature:

Devices without the MicroLogic control unit: -55 °C to +85 °C (-67 °F to +185 °F).
Devices with the MicroLogic control unit: -25 °C to +85 °C (-13 °F to +185 °F).

Devices must be stored in the open (OFF) position with the charging spring discharged.

Check-up and Maintenance After Prolonged Storage

After prolonged storage and if the storage conditions listed above were respected, the checks below must be carried out to ensure correct device operation:

Part or subassembly	Under two years of storage	Over two years of storage
Device mechanisms	Standard end-user program	Manufacturer maintenance program
MicroLogic control unit	Standard end-user program	Manufacturer maintenance program
Device and chassis locking	Standard end-user program	Manufacturer maintenance program
Chassis	Standard end-user program	Manufacturer maintenance program
Auxiliary circuits	–	Manufacturer maintenance program

In addition, if the devices were stored under severe conditions (high temperature, corrosive atmosphere):

Check the surface condition of the metal parts (zinc) and the copper parts (silver coatings (Ag) on connection terminals or tinning (Sn)).
Check the greasing for the device and chassis.
Clean and regrease the clusters and disconnecting contacts.