GE Industrial Solutions EntelliGuard 800–2000 A Frames, 240–600 Vac Maintenance Manual - Manual (Page 5)

EntelliGuard™ 800–2000 A Power Circuit Breakers
Table of Contents
iii
5.5 Breaker Mechanism Operation and Adjustment .................................................................................18
Trip Latch Adjustment..................................................................................................................19
Chapter 6. Contact Maintenance
6.1 Introduction ..........................................................................................................................................20
6.2 Arc Chute Removal and Replacement .................................................................................................20
Arc Chutes in EGS08, EGF08, and EGH08 Breakers....................................................................20
Arc Chutes in EGX08, EGS16, EGF16, EGH16, EGS20, and EGF20 Breakers ............................20
6.3 Back Frame Assembly ............................................................................................................................21
6.4 Replacement of Contacts ......................................................................................................................21
Contact Replacement on EGS08, EGF08, and EGH08 Breakers .................................................21
Contact Replacement on EGX08, EGS16, EGF16, EGH16, EGS20, and EGF20 Breakers..........24
6.5 Adjusting the Contacts ..........................................................................................................................26
Contact Adjustment on EGS08, EGF08, and EGH08 Breakers....................................................26
Contact Adjustment on EGX08, EGS16, EGF16, EGH16, EGS20, and EGF20 Breakers ............26
Chapter 7. Maintenance of Standard Parts and Assemblies
7.1 Primary Disconnects..............................................................................................................................28
Primary Disconnect Replacement on EGS08, EGF08, and EGH08 Breakers..............................28
Primary Disconnect Removal on EGX08, EGS16, EGF16, EGH16, EGS20, and EGF20
Breakers..........................................................................................................................................28
Primary Disconnect Installation on EGX08, EGS16, EGF16, EGH16, EGS20, and EGF20
Breakers..........................................................................................................................................29
7.2 Secondary Disconnect ...........................................................................................................................31
Secondary Disconnect Removal ....................................................................................................31
Secondary Disconnect Installation................................................................................................31
7.3 Flux Shifter ............................................................................................................................................32
Flux Shifter Adjustment.................................................................................................................32
Removing the Flux Shifter ............................................................................................................32
Installing the Flux Shifter..............................................................................................................32
7.4 Draw-Out Mechanism............................................................................................................................34
Draw-Out Mechanism Removal ....................................................................................................34
Draw-Out Mechanism Installation ................................................................................................34
Draw-Out Mechanism Adjustment................................................................................................34
7.5 Escutcheon.............................................................................................................................................36
Escutcheon Removal .....................................................................................................................36
Escutcheon Installation .................................................................................................................36
7.6 Charging Handle...................................................................................................................................36
Removing the Charging Handle...................................................................................................36
Installing the Charging Handle....................................................................................................36
Chapter 8. Accessory Maintenance
8.1 Bell Alarm with Lockout........................................................................................................................38
Removing the Bell Alarm with Lockout........................................................................................38
Installing the Bell Alarm with Lockout.........................................................................................39
8.2 Shunt Trip .............................................................................................................................................39