3
Replacement of Cover Gasket for Padmount Switchgear Side-Hinge-2 Models
FIELD SERVICE INSTRUCTIONS   MN285009EN   April 2019
Standard with
polycarbonate bowl
Standard with
aluminum bowl
Figure 13.  Examples of typical desiccant air dryers
Figure 14.  Leak-test assembly
Figure 15.  EFI Microsonic Detector Model EI-701 
leak detector
Pre-arrival tasks
Perform these tasks before arriving on site:
 
Review the Installation, Operation, and Maintenance 
Manual applicable for the switchgear and familiarize 
yourself with the stated safety precautions.
 
Ensure that the tools and supplies listed in Table 2 on 
page 1 are available.
 
Check the ambient temperature conditions at the work 
site. Cover gasket installation should be performed only 
at temperatures above 32 °F (0 °C). Contact the factory if 
service is required at temperatures below 32 °F (0 °C).
Procedure
1.  Prepare unit for service and verify parts
1.1  Verify that the Gasket Replacement Kit contains the 
items listed in Table 1 on page 1.
1.2  Verify that the Padmount switchgear is de-energized 
and that high voltage cables in the cabinet are 
grounded.
 DANGER
Hazardous voltage. Contact with hazardous voltage 
will cause death or severe personal injury. Follow all 
locally approved safety procedures when working 
around high- and low-voltage lines and equipment.
1.3  Once the unit is safe to access, open the cabinet 
doors on both sides (Figure 16).
Figure 16.