WS006894A
Figure 5: Example of O-ring adjacent surfaces
During the reassembly, always make sure that existing index markings are in line.
The reassembled drive unit must always be insulation-tested and the reassembled pump
must always be test-run before normal operation.
4.2 The fault-tracing process
4.2.1 Trace faults in the drive
Check the stator.
on page 21.
↓
Check inspection chamber / stator housing
↓
Abnormal leakage?
→
Yes
→
Basic Repair Kit (BRK): Mechanical
seals, bearings and O-rings
↓
No
↓
Check buffer fluid
↓
Abnormal leakage?
→
Yes
→
Outer seal
↓
No
↓
Oil change
4.2.2 Check the stator
1. Perform the 500–1000 V DC insulation test by measuring R
1
— R
6
.
R
1
— R
6
are defined in the following table.
4 Maintenance
2620.172/.281 Service and Repair Instructions
21
Summary of Contents for Flygt 2620.172
Page 1: ...Service and Repair Instructions 885611_2 0 2620 172 281...
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