Cooper QD3 User Manual

QD3 Quik-Drive Voltage Regulator Tap-Changer Manual
32
PRODUCT INFORMATION
Introduction
The QD3/T350 Main Stationary Contact Assembly Kit and
installation instructions gives customers the ability and
guidance to replace the stationary contact during main-
tenance cycles when contact erosion has occurred to the
point of needing replacement.
Additional Information
These instructions cannot cover all details or variations
in the equipment, procedures, or process described nor
provide directions for meeting every possible contin-
gency during installation, operation, or maintenance. For
additional information, contact your representative.
Kit part figure.
INSTALLATION PROCEDURE
Tap-Changer Removal from
Voltage Regulator
1. Remove the internal position indicator shaft from the
tap-changer indicator drive tube. (See Figure 80.)
Figure 80.
Internal flex shaft.
Internal Flex Shaft
TapChanger
Internal
Drive Tube
GENERAL
The purpose of this replacement procedure is to pro-
vide the parts and installation instructions for replac-
ing the main stationary contacts on a QD3 Quik-Drive
Tap-changer.
This installation instruction is made up of four different
procedure sections:
Tap-changer Removal from Voltage Regulator
QD3/T350 Tap-changer Assembly Separation
Main Stationary Contact Removal and Re-Assembly
Tap-changer Re-assembly
TABLE 5
Parts Supplied
Item Part Number Description Qty
1 0791822A01 Main Stationary Contact 1
TABLE 6
Tools Required
Description Qty
Needle Nose Pliers 1
9/16 inch Deep Well Socket 1
5/32 Allen Wrench 1
Phillips Head Screwdriver size 1 point 1
Diagonal Cutters 1
Phillips Head Screwdriver 1
Standard Screwdriver 1
Torque Wrench inch pounds 1
3/8 inch Drive Ratchet Wrench 1
QD3/T350 Main Moveable Contact
Assembly Kit
Kit 5741325B04
Refer to Service Information S225-50-41
Acceptance and Initial Inspection
Each Stationary Contact Assembly is in good condition
whenacceptedbythecarrierforshipment.Uponreceipt,
inspect the shipping container for signs of damage.
UnpacktheStationaryContactAssemblyandinspectit
thoroughly for damage incurred during shipment. If dam-
age is discovered, file a claim with the carrier immediately.
Handling and Storage
Be careful during handling and storage of the Station-
ary Contact Assembly to minimize the possibility of dam-
age. If the moveable contact board is to be stored for any
length of time prior to installation, provide a clean, dry
storage area.
Standards
ISO 9001 Certified Quality Management System

Cooper QD3 Specifications

General

Brand	Cooper
Model	QD3
Category	Controller
Language	English