Operating instructions
W3G990-GZ02-91
`
II 2G Ex d e ib IIB T3 Gb
IBExU14ATEX1123 X /05
`
Translation of the original operating instructions
54008-4-8670
Check the
protective
casing against
accidental
contact for
damage and to
ensure that it is
intact
Visual inspection At least every
6 months
Repair or
replacement of
the device
Check the
device for
damage to
blades and
housing
Visual inspection At least every
6 months
Replacement of
the device
Mounting the
connection lines
Visual inspection At least every
6 months
Fasten
Check the
insulation of the
wires for damage
Visual inspection At least every
6 months
Replace wires
Tightness of
screwed cable
gland
Visual inspection At least every
6 months
Retighten,
replace if
damaged
Drain holes to
prevent
clogging, as
necessary
Visual inspection At least every
6 months
Open bore holes
Weld seams for
crack formation
Visual inspection At least every
6 months
Replace device
Cable routing
(fastening)
Visual inspection At least every
6 months
Fasten cables
Cleaning and
preventive
maintenance
Visual inspection At least every
3 months
Remove dirt,
clean the device
Check the ball
bearings to
ensure they are
quiet, can
move easily
and are free of
play
Acoustic and/or
manual check
by turning the
rotor whilst
switched off,
vibration test
At least every
3 months
Replace the
device in the
event of noise,
stiffness or
bearing play.
Have the motor
bearings
replaced by
ebm-papst.
Vibration test
See Vibration
test section
At least every
6 months
Cleaning,
repair or
replacement of
device
Check gap
dimensions
See Gap
dimensions
section
At least every
3 months
Replacement of
device
7.4 Vibration check
Regular checks must be made to ensure that the fan is not operated with
impermissibly high vibration values. On the basis of ISO 14694, the
maximum permissible vibration velocities are specified as follows:
Fan connected to system
with isolation from vibration
Fan connected to system
without isolation from
vibration
Vibration velocity
Vibration velocity
Max. 6.3 mm/s
Max. 4.5 mm/s
Fig. 9: The vibration velocities are measured in radial direction at the
stator bush.
The motor bearings are provided with lifetime lubrication at the factory.
Experience has shown that under normal operating conditions the grease
therefore only has to be renewed after several years. The motor must be
deactivated in the event of bearing noise. To remedy this, the motor has
to be exchanged or the defective bearings replaced by the ebm-papst
Service department.
A record is to be kept of the routine inspections performed.
Item no. 54008-5-9970 · ENG · Revision 87791 · Release 2016-04-29 · Page 16 / 16
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · [email protected] · www.ebmpapst.com
