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

7 Servicing/Maintenance
Observe the following values for leak testing:
▪ Test medium: compressed air
▪ Test pressure: 0.8 bar maximum
▪ Test duration: 2 minutes
Fig. 36: Screwing in the testing device
1. Unscrew and remove the screw plug and joint ring of the lubricant reservoir.
2. Screw the testing device tightly into the lubricant filler opening.
3. Carry out the leak test with the values specified above.
The pressure must not drop during the test period.
If the pressure does drop, check the seals and screwed connections.
Repeat the leak test.
4. If the leak test has been successful, fill in the lubricant.

7.5.5 Checking the connection of motor/power supply

Check the power cables after reassembly. (ð Section 7.2.2, Page 57)
7.6 Tightening torques
Table 27: Tightening torques [Nm] depending on thread, material and property class
Thread
A4-50
210
[Nm]
M 5 -
M 6 -
M8 -
M10 -
M12 -
M14 -
M16 -
M20 -
M24 230
M30 460
M42 1300
M48 1950
Amarex KRT
P
Tightening torque
Material
A4-70
Property class Rp 0.2 N /
250 450
[Nm] [Nm]
- 4
- 7
- 17
- 35
- 60
- 90
- 150
- 290
278 -
- -
- -
- -
1.4462 8.8
mm²
450 640
[Nm] [Nm]
4 6
7 10
17 25
35 50
60 85
90 130
150 210
290 410
500 700
1000 1400
2750 3900
4200 6000
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