Xylem FLYGT Flygt 2071, Инструкция по установке, эксплуатации и обслуживанию

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Major overhaul
For a major overhaul, take this action in addition to the tasks listed under Inspection.
Service item Action
Support and main bearing Replace the bearings with new bearings.
Mechanical seal Replace with new seal units.
Change the oil
A paraffin oil with viscosity close to ISO VG32 is recommended. The pump is delivered
from the factory with this type of oil. In applications where poisonous properties are of less
concern, a mineral oil with viscosity up to ISO VG32 can be used.
Empty the oil
1. Lay the pump on its side.
Lock the pump with supports to prevent it from rolling over.
2. Remove the oil plug.
3. Remove the oil screw.
WARNING:
The oil housing may be pressurized. Hold a rag over the oil plug to
prevent oil from spraying out.
4. Fit the oil drainage tube (optional).
5. Turn the pump so that the oil hole faces downwards and let the oil run out.
Fill with oil
1. Replace the oil screw O-ring.
2. Turn the pump so that the oil hole faces upwards and fill with new oil.
Quantity: 0.4 L (0.42 qt.)
3. Put the oil screw back and tighten it.
Tightening torque: 10 Nm (7.4 ft-lbs)
Replace the impeller
Remove the impeller
WARNING:
A worn impeller and/or pump housing can have very sharp edges. Wear protective gloves.
1. Lay the pump on its side.
2. Remove the strainer:
a) Remove the protection screw.
Maintenance
26 Flygt 2071 Installation, Operation, and Maintenance Manual