Publication 2100-IN012B-EN-P - April 2005
9-4 Maintenance
Disconnect Switch and
Contact Lubrication
If a switch that is used frequently becomes difficult to operate or is located in a
highly corrosive or caustic environment, it may require lubrication. The
lubricant to be used is NO-OX-ID
®
Compound (catalog number 2100H-N18
for a 1-pint can or 2100H-N18T for a 1-ounce tube). To obtain the lubricant,
contact your local Rockwell Automation Sales Office, distributor or Rockwell
Automation.
Instructions
1. Plug-in Units
If a disconnect switch requires lubrication and is housed in a plug-in
unit, remove the plug-in unit from the motor control center (For
removal of unit, refer to Chapter 5, Installing and Removing Plug-In
Units, before lubricating the switch).
Frame Mounted Units
If disconnect switch requires lubrication and is housed in a frame
mounted unit, turn off the power source(s) to the motor control center
so the switch can be lubricated.
NOTE: Save all parts for reinstallation.
2. Remove the line guard from the disconnect.
3. For access to the disconnect's stationary contacts remove the arc hood.
ATTENTION
Follow NFPA 70E safety guidelines when working on
energized equipment.
To prevent injury or death to personnel lubricating
disconnect switch contacts, make sure the motor control
center power source(s) is disconnected and the respective
disconnect(s) is locked in the OFF/O position. For plug-in
units, remove the unit from the motor control center.
To prevent personal injury or damage to equipment, make
sure that the unit handle operator is in the OFF/O position
before removing the unit.
ATTENTION
To prevent injury or death to personnel lubricating
disconnect switch contacts, make sure that the motor
control center remote power source(s) is disconnected and
the respective disconnect(s) is locked in the OFF/O
position.
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