A R T I C L E O R C H A P T ER T I T L E
25
Bolted joint maintenance
Danger: Turn off power ahead of switchgear
before performing any inspection or maintenance
operations.
Check incoming line terminals to verify that
the equipment is de-energized and grounded.
Check outgoing terminals to ensure that no back-
feed co
ndition exists.
1. Tighten all secondary control wire connections.
Check for loose lug crimps and broken wire
strands.
2. Open bus joints and inspect connection
surfaces.
3. Clean surfaces with an OSHA-approved solvent.
Dress contact surfaces that show minor
corrosion or pitting by lightly rubbing with a
polishing cloth such as 3M Scotch Brite.
Take care to minimize the removal of plating.
4. Replace parts that show signs of heavy
corrosion, arcing or melting.
5. Replace contact fingers and springs after
exposure to excess heating at the breaker
disconnect.
6. Before assembly, protect contact surfaces with
No-Ox-ID Special A Compound, a product of
Sanchem Chemical Co., ABB part no. 713222A00,
or equivalent.
7. Use proper torque in tightening bolted
connections. All bolted joints must be torqued
per the values in appendix A — target torque
values.
Care of finish
The paint and galvanized finish is strong and
durable. Always keep the switchgear clean. Wiping
with a clean, dry cloth will usually suffice. To remove
oil and grease marks, use warm water and soap, and
wipe dry with a clean, dry, soft cloth.
Because the color and finish may vary, consult the
front sheet of the bill of materials before using
touch-up paint. The standard paint color is ANSI 61,
light gray.
Renewal parts
Previous experience and the number of vertical
sections in service are the best guidelines for
determining the stocking of replacement parts.
Order factory original replacement parts from
ABB Inc., Lake Mary, Florida 32746. Specify quantity,
part numbers, description and nameplate data of
the device requiring the replacement parts.
For replacement parts,
Call toll free: 1-800-929-SWGR
Outside of USA, call: 1-407-732-2000
M A I N T EN A N C E
Summary of Contents for ReliaGear ND
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