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If the fuse is defective, replace the fuse with a fuse of the same type and value. Before replacing the fuse, unplug mains lead.
This unit is virtually maintenance-free, but you should check the unit regularly for mechanical and electrical aspects.
Assess the operating environment and establish an inspection and cleaning schedule that follows the guidelines below:
Disconnect the unit from the power supply and allow it to cool completely before inspecting and cleaning.
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Check that the screws and bolts used to install the unit are securely tightened and free from corrosion.
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Check the housing, fixing points and installation points, they must not show any signs of deformation, wear or fatigue.
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Check the mechanically moving parts, these must not show any signs of wear or fatigue.
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Check the electrical power and signal cables, they must not show any damage or fatigue.
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Do not use solvents, abrasives or other aggressive products to clean the unit.
Wipe the unit and clean the glass plate with a soft, clean, lint-free cloth moistened with a weak cleaning solution. Place the solution on the cloth
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and not on the surface to be cleaned. Avoid rubbing glass surfaces.
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Dry the unit, connectors and contacts with a soft, clean, lint-free cloth or low-pressure compressed air before re-powering the unit.
Procedure:
Step 1: Open the fuse holder on the rear panel with a fitting screwdriver.
Step 2: Remove the old fuse from the fuse holder.
Step 3: Install the new fuse in the fuse holder.
Step 4: Replace the fuse holder in the housing.
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