KSB Etachrom NC, Инструкция по установке и эксплуатации

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While the pump is in operation, observe and check the following:
▪
The pump must run quietly and free from vibrations at all times.
▪
Check the shaft seal.
(⇨ Section 6.1.6 Page 33)
▪
Check the static seals for leakage.
▪
Check the rolling element bearings for running noises.
Vibrations, noise and an increase in current input occurring during unchanged
operating conditions indicate wear.
▪
Monitor the correct functioning of any auxiliary connections.
▪
Monitor the stand-by pump.
To make sure that the stand-by pumps are ready for operation, start them up
once a week.
▪
Monitor the bearing temperature.
The bearing temperature must not exceed 90 °C (measured at the motor
housing).
CAUTION
Operation outside the permissible bearing temperature
Damage to the pump!
▷
The bearing temperature of the pump (set) must never exceed 90 °C (measured
on the outside of the motor housing).
NOTE
After commissioning, increased temperatures may occur at grease-lubricated rolling
element bearings due to the running-in process. The final bearing temperature is
only reached after a certain period of operation (up to 48 hours depending on the
conditions).
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.
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
For checking the clearances remove the impeller, if required.If the clearance is larger
than permitted (see the following table), fit new casing wear ring 502.1 and/or 502.2.
(⇨ Section 7.4.5 Page 44)
The clearances given refer to the diameter.
Table 12: Clearances between impeller and casing [mm]
Size Suction side Discharge side Nominal impeller diameter
125 160 200 250
25
✘
- 0,6 0,6 0,6 0,5
-
✘
- - 0,5 0,45
7 Servicing/Maintenance
Etachrom NC 39 of 62