Application Guide

Installation Instructions Section 5876
Spec. No. 582140000 (Models 802
NLDB, 802NLEB and 802NL-B) Issue AT, April 26, 2013
Chapter 2. Placing the Bays and Installing Internal/External Busbars Page 2-7
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PLACING AND SECURING LIST 3, 4, 5, 13, 14, AND 15 POWER
ONLY BAYS
• Figure 2-1 provides a floor hole drilling pattern.
• Bays are typically placed next to each other and bolted together. Refer to the
previous Section, GENERAL REQUIREMENTS, for bay line-up recommendations.
Procedure
1) Remove all front Rectifier mounting position blank cover panels from each Power
Only Bay to provide access to bay's floor mounting holes and leveling feet.
Cover panels will be re-installed in empty Rectifier mounting positions after all
Rectifiers are installed. To do so: Remove the screws and ground washers
securing the cover panel. Remove the cover panel.
2) Remove the three rear cover panels from each Power Only Bay. These cover
panels will be re-installed after all mounting and electrical connection procedures
have been completed. To do so:
Top Panel: Loosen the screws securing the
cover panel. Lift the cover panel until the screw heads clear the keyhole slots.
Remove the cover panel.
Lower Panels:
3) Remove the side cover panels from each Power Only Bay (two per side) as
follows, if equipped. Note that you may leave the side cover panels on the
"outside side" of the two end bays.
Remove the screws and ground
washers securing the panel. Remove the panel.
a) Remove the rear-most side cover panel as follows: Remove the screws
and ground washers securing the side cover panel. Screws are accessible
from the rear of the bay through holes in the side channels. After removing
screws, pivot rear edge of cover panel outward, then slide cover panel
toward rear of bay to disengage tabs at the front of the cover panel from slots
in the bay.
b) Remove the front-most side cover panel as follows: Open the bay's front
door. Remove the screws and ground washers securing the side cover
panel. Screws are accessible from the front of the bay through holes in the
side channels. After removing screws, pivot front edge of cover panel
outward, then slide cover panel toward front of bay to disengage tabs at the
rear of the cover panel from slots in the bay.
4) Place bay(s) in position. Note that clearance holes for 1/4” bolts are provided in
the side rails of each bay. These holes are for bolting the bays together.
5) Level bay(s) as required, using leveling feet in base plate. Adjust leveling feet so
that all bays are even at top, and bolt holes in the side of each bay line up with
holes in the adjacent bay(s).
6) Bolt all bays together. Use 1/4” hardware, six places per pair of bays. Use a
ground washer in two locations with the 1/4" hardware bolting two bays together.
Note: A ground washer is an internal-external tooth, dish-type lock washer.
When installing ground washers, ensure that the ground washer is
oriented so that the teeth dig into the paint on the metal part the ground
washer is secured to (concave side faces the metal part).
7) Install shims between bottom of each bay and the floor as required to distribute
floor loading.
8) Secure bay(s) to floor using fastening hardware per site requirements.