Checking The Connection Of Motor/Power Supply - KSB Amarex KRT Installation & Operating Manual

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7 Servicing/Maintenance
ð If the pressure does drop, check the sealing elements and screwed
connections.
4. Repeat the leak test if required.
5. Remove the testing device.
6. After the leak test, top up the coolant.
7. Re-insert and tighten the corresponding screw plug and joint ring.
7.5.3.2 Checking the motor for leakage
Observe the following values for leak testing:
▪ Test medium: compressed air
▪ Test pressure: 0.8 bar maximum
▪ Test duration: 2 minutes
Opening: control opening for mechanical seal leakage (903.02)
Fig. 52: Checking the motor for leakage
Table 30: Key to the symbols and codes
Symbol Description
Always apply a liquid sealant (e.g. Hylomar SQ32M) to sealing surfaces
FD
marked with this symbol.
1. Remove screw plug 903.02 and joint ring 411.02.
2. Screw the testing device tightly into the G
3. Carry out the leak test with the values specified above.
ð The pressure must not drop during the test period.
ð If the pressure does drop, check the sealing elements and screwed
connections.
4. Repeat the leak test if required.
5. Remove the testing device.
6. Re-insert and tighten screw plug 903.02 with new joint ring 411.02.

7.5.4 Checking the connection of motor/power supply

Check the power cables after reassembly. (ð Section 7.2.2, Page 67)
Amarex KRT
1
/ plug thread.
4