Refer to Circuit Breaker Operator Manual.
Table 2. Periodic Maintenance and Lubrication Tasks
Sub-Assembly
Item
Inspect For
Primary Power Path
Primary Studs/Disconnects
1. Lubrication of contact surfaces.
2. Tightness of nuts (torque 1/2” Grade 5 bus
hardware to 50 ft-lbs) and other locking devices.
Electrical Controls
Wiring
1. Mechanical damage or abrasion
Terminals and Connectors
1. Tightness and absence of mechanical damage
Close and Trip Solenoids, Anti-
Pump Relay, Auxiliary Switches,
Secondary Disconnect
1. Automatic charging
2. Close and trip with control power
High Potential Test
Primary Circuit to Ground
and between Primary Dis-
connects
1. 60 second withstand, refer to Circuit Breaker
Operator Manual SGIM-9918 for ratings.
Control Circuit to Ground
1. 60 second withstand, refer to Circuit Breaker
Operator Manual SGIM-9918 for ratings.
Insulation
Barriers and all Insulating
Components
1. Cleanliness
2. Cracking, crazing, tracking, or other sign
of deterioration
Interrupter Operator
Mechanism
1. Cleanliness
2. Lubrication of sliding, rotating, and articulating
surfaces. Apply Anderol 732 aerosol synthetic fluid
grease (part number 15-172-816-058) or Beacon
#325 (part number 15-337-131-001)
Interlock Mechanism
1. Excessive wear and/or mechanical damage any mechanical joint.
2. Loose hardware, clip pins and cotter pins.
3. Lubricate as needed. Apply Anderol 732 aerosol synthetic fluid grease
(part number 15-172-816-058) or Beacon #325 (part number 15-337-131-001).
4. Proper gap on the MOC Actuator.
Refer to Figure 4, MOC Actuator, for details.
MOC Actuator System
(Refer Figure 4)
Lubrication Interval
10 years
10,000 operations
10 years
100 racking
operations
10 years
5,000 operations
Maintenance
13
10 years
100 racking operations
