Amarex KRT series, Installation And Operating Manual, Page: 87 / 124

7 Servicing/Maintenance
87 of 124
Amarex KRT
Table 49: Key to the symbols and codes
Symbol Description
FD
Always apply a liquid sealing agent (e.g. Hylomar SQ32M) to sealing
surfaces marked with this symbol.
1. Remove the screw plug and joint ring of the lubricant chamber and/or cooling
system.
2. Screw the testing device tightly into the G 1/2 plug thread.
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 seals and screwed connections.
4. Repeat the leak test if required.
5. Remove the testing device.
6. After the leak test, top up coolant or lubricant.
7.5.4.2 Testing the motor for leakage
Observe the following values for leak testing:
▪
Test medium: nitrogen
▪ Test pressure : 12.3 psi [0.8 bar]
▪ Test duration : 2 minutes
▪ Opening: hole of screw plug 903.31
903.31
411.31
243
L
Fig. 56: Leak testing the motor
Table 50: Key to the symbols and codes
Symbol Description
L
243
Always secure screwed connections marked with this symbol with
Loctite 243 .
1. Undo and remove screw plug 903.31 with joint ring 411.31.
2. Screw the testing device tightly into the G 1/2 plug thread.
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 seals and screwed connections.
4. Repeat the leak test if required.
5. Remove the testing device.