Service item Action
Voltage and amperage Check the running values.
6.4.2 Overhaul
The basic repair kit includes O-rings, seals, and bearings.
For an overhaul, do the following 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.
6.4.3 Service in case of alarm
For information about indication values for sensors, see Sensors connection on page 37.
Alarm source Action
CLS Check for water in the oil housing. If the oil contains too much water, then
do the following:
1. Drain the oil and water.
2. Replace with new oil.
FLS 1. Check for liquid in the stator housing.
2. Drain all liquid, if any.
3. Check the mechanical seal unit, the O-rings, and the cable entry, if
liquid was found.
Thermal contact Check the start and stop levels.
The overload protection Check that the impeller can rotate freely.
6.5 Replace the impeller
Required tools:
• 8 mm hexagon bit adapter with an extension of at least 125 mm (4.92 in)
• Impeller puller
If applicable, contact your local sales and service representative for correct type and
size.
• Rod (wood or copper) for locking the impeller in place, if applicable
• Two crowbars, if applicable
CAUTION: Cutting Hazard
Worn parts can have sharp edges. Wear protective clothing.
NOTICE:
When laying the pump on its side, do not allow the weight of the pump to rest on any
portion of the impeller. The impeller must not be allowed to make contact with the
concrete floor or other hard and rough surfaces.
If you fail with the impeller installation, then you must redo the installation procedure from
the beginning.
6 Maintenance
48 Flygt 3102 Installation, Operation, and Maintenance Manual
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