Vibration Check - Ebmpapst W3G990-GZ02-91 Operating Instructions Manual

W3G990-GZ02-91
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II 2G Ex d e ib IIB T3 Gb
IBExU14ATEX1123 X /05
Check the Visual inspection At least every
protective
casing against
accidental
contact for
damage and to
ensure that it is
intact
Check the Visual inspection At least every
device for
damage to
blades and
housing
Mounting the Visual inspection At least every
connection lines
Check the Visual inspection At least every
insulation of the
wires for damage
Tightness of Visual inspection At least every
screwed cable
gland
Drain holes to Visual inspection At least every
prevent
clogging, as
necessary
Weld seams for Visual inspection At least every
crack formation
Cable routing Visual inspection At least every
(fastening)
Cleaning and Visual inspection At least every
preventive
maintenance
Check the ball Acoustic and/or
bearings to manual check
ensure they are by turning the
quiet, can rotor whilst
move easily switched off,
and are free of vibration test
play
Vibration test See Vibration
test section
Check gap See Gap
dimensions dimensions
section

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
Vibration velocity
Max. 6.3 mm/s
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 · info1@de.ebmpapst.com · www.ebmpapst.com
Operating instructions
Repair or
6 months replacement of
the device
Replacement of
6 months the device
Fasten
6 months
Replace wires
6 months
Retighten,
6 months replace if
damaged
Open bore holes
6 months
Replace device
6 months
Fasten cables
6 months
Remove dirt,
3 months clean the device
At least every Replace the
3 months device in the
event of noise,
stiffness or
bearing play.
Have the motor
bearings
replaced by
ebm-papst.
At least every Cleaning,
6 months repair or
replacement of
device
At least every Replacement of
3 months device
Fan connected to system
without isolation from
vibration
Vibration velocity
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.
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