7 Servicing/Maintenance
47 of 74
HPK-L
1136.8/15-EN
7.2.2 Inspection work
DANGER
Excessive temperatures caused by friction, impact or frictional sparks
Explosion hazard!
Fire hazard!
Damage to the pump set!
▷
Regularly check the coupling guard, plastic components and other guards of
rotating parts for deformation and sufficient distance from rotating parts.
DANGER
Electrostatic charging due to insufficient potential equalisation
Explosion hazard!
▷
Make sure that the connection between pump and baseplate is electrically
conductive.
7.2.2.1 Checking the coupling
Check the flexible elements of the coupling. Replace the relevant parts in due time if
there is any sign of wear and check the alignment.
7.2.2.2 Checking the clearances
To check the clearance gaps, remove the back pull-out unit.
If the clearance gap is larger than permitted (see the following table), replace casing
wear ring 502.01 with a new one.
The clearance gaps given refer to the diameter.
Table 17:
Clearance gaps between impeller and casing / between impeller and casing
wear ring
HPK-LS/-LS4
HPK-LE/-LE4
up to DN 65
0.40 mm + 0.1
0.60 mm + 0.1
DN 80 to DN 200
0.50 mm + 0.1
0.60 mm + 0.1
DN 250 and above
0.65 mm + 0.1
0.75 mm + 0.1
All HPK-LS/-LS4 pumps are fitted with casing wear rings.
Table 18:
Clearance gaps in the plain bearing
Bearing bracket
Bearing clearance
LP02
0.03 mm + 0.045
LP03
0.05 mm + 0.045
LP04
0.05 mm + 0.045
LP05
0.05 mm + 0.05
LP06
0.05 mm + 0.05
NOTE
If the clearances given are exceeded by more than 1 mm (referring to the diameter)
replace the affected components or restore the original clearance by means of a
casing wear ring.
Contact KSB.
Summary of Contents for HPK-L
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