S&C Loadbuster Instruction Sheet page 16

Operation
STEP 1. Reach across in front of the fuse unit or holder
with the Loadbuster tool and hook the anchor,
located at top of the Loadbuster tool, over the
attachment hook on the far side of the fuse unit
or holder. See Figure 8 on page 15. Note that only
one attachment hook is provided.
STEP 2. Swing the Loadbuster tool toward the fuse unit
or holder and pass the Loadbuster tool pull-ring
hook through the pull-ring of the fuse unit or
holder. The pull-ring latch will de ect and, upon
complete entry of the pull-ring hook, will spring
back, locking the Loadbuster tool to the
pull-ring. The Loadbuster tool is now connected
across the upper contact of the power fuse. See
Figure 9 on page 15.
STEP 3. To open the circuit, operate the Loadbuster tool
with a rm, steady pull until it is extended to its
maximum length. See Figure 10. Avoid jerking
and hesitation. The resetting latch will keep it
open. Commutation arcing may be noted at the
pull-ring hook and at the anchor, but the only
sound will be that of the Loadbuster tool
tripping.
STEP 4. To detach the Loadbuster tool after circuit
interruption, roll the tool upward by turning
the pole. See Figure 11. This will de ect the
pull-ring latch to release the pull-ring hook
from the pull-ring of the fuse unit or holder.
Disen gage the anchor from the attachment
hook and withdraw the tool.
STEP 5. Reset the Loadbuster tool for the next operation
as described in Step 5 on page 14.
16 S&C Instruction Sheet 811-505
Figure 10. The Loadbuster tool in a Tripped position.
Figure 11. Detaching the Loadbuster tool from a power fuse.