7.6 Tightening torques
7.6.1 Tightening torques of the pump
Casing bo l t s
CAUTION
Use of an impact screw driver on Norihard casings (NH 153)
Damage to screws and threads!
▷ Do not use an impact screw driver.
▷ Make sure that the studs can be screwed in easily for the entire length of the
thread.
Table 23: Tightening torques for screwed connections
19)
Material C35E+QT A4-70
Stamp mark YK/Y A4-70/A4-70
Thread Tightening torques [Nm]
M12 40 55
M16 100 140
M20 190 200
Impeller s c r e w
Table 24: Tightening torque of the impeller screw (part No. 906 and 901.87)
19)
Bearing Tightening torque M
A
[Nm]
P03ax 50
P04ax 50
P05ax 120
P06x 180
P08sx/P10ax/P12sx 360
7.7 Spare parts stock
7.7.1 Ordering spare parts
Always quote the following data when ordering replacement or spare parts:
▪ Type series
▪ Material variant
▪ Size
▪ Seal code
▪ KSB order number
▪ Order item number
▪ Consecutive number
▪ Year of construction
Refer to the name plate for all data.
Also supply the following data:
▪ Description
▪ Part No.
▪ Quantity of spare parts
19)
Values refer to unlubricated screws. After repeated tightening of the threads and in case of good lubrication reduce the
values by approx. 20 %.
7 Servicing/Maintenance
64 of 78
KWP
To Next Page
Loading...
Need help?
General
