1. If required, suspend or support the back pull-out unit to prevent it from tipping
over. Then slide it into volute casing 102 with a new gasket 411.10.
2. Tighten nut 920.01 at volute casing 102. Observe the tightening torques.
(⇨ Section 7.6.1 Page 53)
7.5.6
Mounting the motor
NOTE
Steps 1 and 2 do not apply to versions with spacer-type coupling.
1. Shift the motor to connect it to the pump via the coupling.
2. Fasten the motor to the baseplate.
3.
Align pump and motor.
4. Connect the motor to the power supply (refer to manufacturer's product
literature).
7.6 Tightening torques
7.6.1 Tightening torques of the pump
Use a torque wrench to tighten the screwed connections (902.01/920.01) between the
volute casing and the casing cover.
Table 20: Tightening torques of screwed connections
Material
(Asia and
Americas)
A 193 Grade B7/
B16 /
A 540 Grade B24
A 193 Grade
B7/B16
10.9 -- CF6M/Type 316
Material
(Europe)
1.7709/1.6772
(Monix 3K)
C35E+QT 8.8 A4-70 1.4571/1.4021
Bearing bracket
Size
Stud
14)
902.01
Stud
14)
902.15
Hexagon head
bolt 901.37
Stud
14)
902.02
Impeller nut 922.01
or impeller screw 906
Quantity
Thread
Tightening torque
15)16)
[Nm]
Quantity
Thread
Tightening torque
15)16)
[Nm]
Quantity
Thread
Tightening torque
15)
[Nm]
Quantity
Thread
Tightening torque
15)16)
[Nm]
Quantity
Thread
Tightening torque
15)17)
[Nm]
B02S 25-180 12 M 16
163
18)
/
280
19)
4 M 16 83 4 M 10 45 4 M 16 133 1 M 14x1.5
80
20)
25-230 16 M 16
163
18)
/
280
19)
4 M 16 83 4 M 10 45 4 M 16 133 1 M 14x1.5
80
20)
14)
Stud to DIN 938/DIN 939 with hexagon nuts to ISO 4032.
15)
These values are determined on the basis of a friction coefficient of μ = 0.1
2.
16)
After repeated tightening of the threads and in case of good lubrication the values shall be reduced by 15 to 20 %.
17)
Re-tighten impeller nut 922.01 or impeller screw 906 some 20 to 30 minutes after assembly. Bend back lock washer 931.02.
18)
Values for 1.7709 / A 193 Grade B7/B16 /
19)
Values for 1.6772 (Monix 3K) / A 540 Grade B24
20)
Values for 1.4571 / A 276 Type 316Ti
7 Servicing/Maintenance
RPH
53 of 76
To Next Page
Loading...
