KRAL OMG Series User Manual

12 Servicing
12.1 Dangers during servicing
12 Servicing
12.1 Dangers during servicing
The following safety instructions must be observed strictly:
o Have all work only carried out by authorized qualified personnel.
o To ensure the measuring precision, the measuring unit may only be replaced by the manufac-
turer.
o Before beginning work, let the flowmeter cool down slowly to the ambient temperature. Avoid
rapid temperature changes.
o Pumped liquids can be hot, poisonous, combustible and caustic.
o Observe the tightening torques Ä Appendix,Page54.
o Observe the operating instructions and data sheets of the sensors.
12.2 Replacing seals and ball bearings
12.2.1 Removing seals and ball bearings OMG-013
Personnel qualification: o Fitter
Personal protective equipment: o Work clothing
o Protective gloves
o Safety boots
Aids: o Extractor
Requirement:
ü Flowmeter removed from system
ü Completion consisting of socket screws, flanges and seals removed
ü Pick up inserts removed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1. Remove the socket screws2, take off the bearing cover3 and O-ring1 from the pick up hole in
the bearing cover.
2. Remove the spacer 4 and O-ring5 and pull the screw set together with the distance sleeve6
from the measuring housing7.
3. Use the extractor to pull off the pole wheel8, ball bearings9 and12 from the measuring screw
large11 and remove the sleeve10.
4. Use the extractor to pull the ball bearings15 and13 from the measuring screw small14.
12.2.2 Installing seals and ball bearings OMG-013
Personnel qualification: o Fitter
Personal protective equipment: o Work clothing
o Protective gloves
o Safety boots
Aids: o Torque wrench
32
OIO 14en-GB Edition 2020-01
Operating instructions

KRAL OMG Series Specifications

General

Brand	KRAL
Model	OMG Series
Category	Measuring Instruments
Language	English