Table of Contents
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product description . . . . . . . . . . . . . . . . . . . . . . . . . 3
NC 400 B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operating principle . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety information . . . . . . . . . . . . . . . . . . . . . . . . 3
Use in explosive atmosphere
. . . . . . . . . . . . . . . . 4
Use of the magnetic coupling on ATEX category 3 Gi/o
certified pump . . . . . . . . . . . . . . . . . . . . . . . . . 4
Use of the magnetic coupling on ATEX category 2 Gi/o
certified pump . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation and commissioning. . . . . . . . . . . . . . . . . . . 4
Installation Prerequisites . . . . . . . . . . . . . . . . . . . . . 4
Fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Maintenance Precautions . . . . . . . . . . . . . . . . . . . . . 5
Fitting the magnetic coupling. . . . . . . . . . . . . . . . . . . 5
Step 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Dismantling the motor/ the lanterne/ the exterior coupling . . . . 6
Fitting the motor/ the lanterne/ the exterior coupling . . . . . . . 7
Inactivity of the vacuum pump for longer periods of time . . . . 7
EC-Declaration of Conformity . . . . . . . . . . . . . . . . . . . 9
Introduction
COBRA Vacuum Pump with Magnetic Coupling
Page 2
0870549497 (EN)
This complement contains further instructions concerning the installa-
tion and operation of the COBRA vacuum pump equipped with ma-
gnetic coupling.
Introduction
Congratulations on the purchase of your Busch vacuum pump. Whilst
always responding to customers’ requirements and through constant
innovation and improvements, Busch delivers modern vacuum and
pressure solutions at the head of Industry worldwide.
This complement to the Roots Installation and Operating Instructions
contains information on
–
product description
–
safety
–
installation
–
maintenance
–
overhaul
–
dismantling
of the vacuum pump with magnetic coupling.
In these instructions, the “handling ” of the vacuum pump implies the
transport, storage, installation, commissioning, influences on operating
conditions, maintenance, troubleshooting and overhaul of the vacuum
pump.
Prior to handling the vacuum pump, these operating instructions must
be read and understood. If you have any doubts, please contact your
Busch representative.
Keep these operating instructions and, if applicable, other relevant ope-
rating instructions available and accessible on site.
