Check Before Installing; Clean And Grease Breaker - ABB EntelliGuard AKD-5 Installation Manual

Check Before Installing

 Ensure only qualified personnel install, operate, service, and maintain all electrical
equipment.
These retrofill breakers are designed to rack into a special Cassette with a hollow back. The special
cassette is equipped with AK style 7 point bullet connectors which interface with the original AKD-5
secondary disconnect blocks. The cassette also has a new racking mechanism. Two cams in the
cassette engage pins on the new breaker to pull it into the cassette. The new breaker has primary
disconnect fingers which will directly connect to the primary stab tips in the AKD-5 switchgear.
1. Check to see that the breaker or breakers match their respective compartments.
2. Read the breaker summary sheet, the front view drawings, breaker nameplate, and the
identification card on the breaker shipping carton.
3. To match the breaker to its proper compartment, refer to the breaker location list on the front view
drawing. Find the proper breaker by the identification card on the breaker carton, or the mark
number on the breaker nameplate. All identical breakers have the same mark numbers.
4. For retrofills replacing AK25 breakers, if applicable, the neutral disconnect assembly block and
bracket within the compartment must be removed. Removing this item should be done only after
the breaker, having been removed from the compartment, has been de-energized.

Clean and Grease Breaker

1. Before installing or operating a breaker, refer to the EntelliGuard G Breaker DEH-41304 instruction
manual for pre-operation inspecting and testing.
2. Check thoroughly for any damaged or loose parts and for any dirt or foreign matter which may be
on the breaker.
3. Clean those areas if necessary with a clean, lint-free rag and isopropyl alcohol or acetone.
4. Be sure to apply a thin film of electrical grease Mobilgrease 28 (D50HD38) to the primary disconnect
fingers for better electrical connections on the breaker. Part # 193A1751P1 is a 1 oz. tube of this
grease.
15 EntelliGuard R Circuit Breaker Retrofill AKD-5 Installation Manual
 It must be ensured that the supply power to
the compartment is turned off/ compartment
is de-energized for all the incoming and
outgoing circuits of the LVS prior to any work
being conducted on it.

During the installation and related work on
the equipment, it must be ensured that the
operator is using the prescribed PPE for the
specified tasks.
DEH-41547