53
A K D - 20 A N D E NTE LLYS I S
LO W VO LTAG E S W I TC H G E A R
—
Fig. 5.6
—
Fig. 5.7
1. Switchgear Breaker Lifting Device
2. Operating Crank
3. Lifting Beam
4. Circuit Breaker Side Frame
1. Breaker Draw-out Position Indicator
2. Racking Shaft Access
3. Racking Handle
1
2
3
4
—
Fig. 5.6
Using breaker lifting
device and lifting
beam to raise orlower
circuit breaker
—
Fig. 5.7
Engage the racking shaft
with the racking handle
8. Roll the breaker into the compartment until the
racking forks meet the racking pin, this is the
DISCONNECT position. If an incorrect breaker
has been installed, the interference pins on
the breaker will interfere with the rejection
pins in the compartment prior to reaching the
disconnect position. At this point, the racking
forks on the cassette are contacting the fixed
racking pins on the breaker.
9. Slide rails back into compartment. Close the
compartment door and rotate latch ¼ turn
counter-clockwise.
10. Engage the racking handle by using a slot
screwdriver to open the racking shaft door by
rotating it clockwise, then insert hex manual
racking handle.
11. Rotate the handle clockwise as far as it will go.
As you rotate the handle clockwise, the breaker
will travel from the DISCONNECT, through the
TEST position (you will notice an audible click),
and then into the CONNECT position. The
breaker position can be seen on the indicator
barrel, located on the cassette escutcheon.
1
3
2
