ABB PVS980-MWS - To Examine and Clean the Grounding Bars and Points; To Lubricate the External Hinges and Locks

Maintenance 59
To examine and clean the grounding bars and points
To clean the grounding components, you need:
• Steel wool
• Ensto SR1 joint compuond (or equivalent)
• 42839 Würth Protective Wax (or equivalent)
To examine and clean the grounding bars and points:
• Examine the condition of the grounding bar and
the grounding cables in the switchgear
compartment. If there is 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.
• Change the spring lock washers. Tighten the
cables to the nominal torque values (torque for a
M12 bolt is 50 N·m).
• If there is a lot of corrosion, apply protective wax
spray on the grounding bar and the cable
terminals.
To lubricate the external hinges and locks
To lubricate the hinges and locks, you need:
• Cleaning materials
• Hinge lubricant: Würth HHS20000 0893 106 (or equivalent)
• Lock lubricant: Würth Maintenance Spray 0893 051 (or equivalent).
Do not use lubricants with silicone.
Lubricate the external hinges and the locks. Wipe off the excess lubricant.