Rockwell Automation 1502 400 Amp Medium Voltage Contactor (Series D) - Manual (Page 29)

Chapter
4
Maintenance
Tool Requirements
Important: Some components of this product incorporate Imperial hardware.
Rockwell Automation recommends the use of the appropriate tools to
successfully complete the maintenance procedures on these components. If you
cannot obtain such tools, contact your area Rockwell Automation sales office
for assistance.
When maintenance is performed on the vacuum contactor, the following tools
may be required:
• 3/8-in. drive ratchet wrench with extension
• 3/8-in. drive torque wrench
• Standard 3/8-in. drive sockets: 7/16 in., 1/2 in.
• Open end wrenches: 7/16 in., 1/2 in.
• Slot head screwdrivers: 1/8-in. wide, 1/4-in. wide
• External retaining ring pliers (STANLEY-PROTO #393 or equivalent)
• Feeler gauge set (0.030 in. [0.76 mm] and 0.075 in. [1.91 mm])
• Feeler gauge set (0.010 in. [0.25 mm]) Mechanical Latch
• 2-inch C-Clamp
• Armature clamping fixture (A-B Part No. 80154-149-51)
• Digital caliper capable of depth measurement
• High potential tester
Recommended Torque Values
Part of the contactor may have to be disassembled for maintenance or replacement.
There are appropriate torque requirements for particular bolt sizes when
reassembling the contactor. For the following bolt sizes, use the specified
torque values listed below:
1/4-in. Hardware 6 ft-lb (8 N-m)
5/16-in. Hardware 11 ft-lb (15 N-m)
3/8-in. Hardware 20 ft-lb (27 N-m)
Routine Maintenance
Before performing any maintenance on the contactor, refer
to the User Manual of the starter configuration in which the
contactor is installed for all service instructions and
procedures. Failure to do so may result in injury to
personnel or damage to the controller or contactor.
1502-UM050D-EN-P – June 2013
A T T E N T I O N A T T E N T I O N