KSB HPK Series User Manual

7 Servicing/Maintenance
64 of 80
HPK
1121.8/06-EN
7.5.5 Fitting the back pull-out unit
WARNING
Back pull-out unit tilting
Risk of crushing hands and feet!
▷ Suspend or support the bearing bracket at the pump end.
ü The notes and steps stated in (ðSection7.5.1,Page59) to
(ðSection7.5.4,Page63) have been observed/carried out.
ü Any damaged or worn parts have been replaced by original spare parts.
ü The sealing surfaces have been cleaned.
ü For back pull-out units supplied without coupling: Fit the coupling in accordance
with the manufacturer's instructions.
1. If required, suspend or support the back pull-out unit to prevent it from tilting.
Then slide it into volute casing 102 with a new gasket 411.10.
2. Tighten nut 920.01 at the volute casing.
3. Bolt support foot 183 to the baseplate.
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. (ðSection5.7,Page32)
4. Connect the motor to the power supply (refer to manufacturer's product
literature).
7.6 Tightening torques
7.6.1 Tightening torques for volute casing/bearing bracket
Use a torque wrench to tighten the screwed/bolted connections (902.01/920.01)
between the volute casing and the bearing bracket lantern.
Table27: Tightening torques for bolted/screwed connections [Nm]
Thread Material of stud/hexagon nut
C35E+Qt/C 35 A4-70/A4-70 1.7709+QT/1.7258+QT 1.6772/1.6722
YK/Y A4-70/A4-70 GA/G MM/MM (M3k)
Stamp mark on stud/hexagon nut
13)
Brand-new
threads
14)
-15 %
15)
-20 %
15)
Brand-new
threads
14)
-15 %
15)
-20 %
15)
Brand-new
threads
14)
-15 %
15)
-20 %
15)
Brand-new
threads
14)
-15 %
15)
-20 %
15)
M10 - - - 30 25,5 24 47 39,9 37,6 - - -
M12 40 34 32 55 46,7 44 80 68 64 130 110,5 104
13
Treat unstamped screwed/bolted connections like material combination C35/E+QT/C 35.
14
These values are determined on the basis of a friction coefficient μ = 0.12.
15
After repeated tightening of the threads and in case of good lubrication the values shall be reduced by 15 to
20%.

KSB HPK Series Specifications

General

Brand	KSB
Model	HPK Series
Category	Water Pump
Language	English