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Maintenance of external hinges and
locks
WARNING!
Obey the
and the local safety regulations. If ignored,
physical injury or death, or damage to the equipment may occur.
Tools
•
Cleaning materials
•
Hinge lubricant: Würth HHS20000 0893 106 (or equivalent)
•
Lock lubricant: Würth Maintenance Spray 0893 051 (or equivalent)
Note:
Do not use lubricants with Silicone.
■
Lubricating the external hinges and locks
1.
Lubricate the external hinges and locks.
2.
Wipe off the excess lubricant.
Procedure
1.
Examine the condition of the grounding bar and grounding cables in the MV switchgear
area. If there is any visible corrosion, remove the cables and remove the corrosion with
steel wool. Apply joint compound between the grounding bar and the joint surfaces of
the cable terminal.
2.
Change the spring lock washers. Tighten the cables to the nominal torque values.
3.
If corrosion is more, apply protective wax spray on the grounding bar and the cable
terminals.
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Maintenance of external hinges and locks 61