Herunterladen Diese Seite drucken

Cleaning The Pump Housing; Cleaning The Sensors; Checking Or Replacing The Shaft Seal - Grundfos SEG AUTOADAPT Montage- Und Betriebsanleitung

Vorschau ausblenden Andere Handbücher für SEG AUTOADAPT:

Werbung

Verfügbare Sprachen
  • DE

Verfügbare Sprachen

  • DEUTSCH, seite 68
Adjusting the impeller clearance
See fig. 14.
1. Gently tighten adjusting nut (pos. 68) (spanner
size 24) until impeller (pos. 49) cannot rotate any
more.
2. Loosen the adjusting nut by 1/4 turn.
Fig. 14
Adjusting the impeller clearance
Assembly
1. When fitting grinder head (pos. 45), the
projections on the back of the grinder head must
engage with the holes in the impeller (pos. 49).
2. Tighten screw (pos. 188a) for the grinder head to
20 Nm. Do not forget the lock washer.
3. Fit grinder ring (pos. 44).
4. Turn grinder ring (pos. 44) 15 to 20 ° counter-
clockwise until it is tightened.
5. Check that the grinder ring does not touch the
grinder head.
6. Tighten screw (pos. 188a) to 16 Nm.
7. Check that the grinder head rotates freely and
noiselessly.

11.5 Cleaning the pump housing

For position numbers, see page 560.
Dismantling
1. Loosen and remove the clamp (pos. 92) joining
pump housing and motor.
2. Lift the motor part out of pump housing (pos. 50).
The impeller and grinder head are removed
together with the motor part.
3. Clean the pump housing and the impeller.
Assembly
1. Place the motor part with impeller and grinder
head in the pump housing.
2. Fit and tighten clamp (pos. 92).
See also section
11.7 Checking or replacing the
shaft
seal.

11.6 Cleaning the sensors

Fig. 15
Position of level and dry-running
sensors
Proceed as follows:
See fig. 15.
1. Level sensor (pos. 7):
Flush the sensor with clean water.
Dry-running sensors (pos. 10):
Flush the dry-running sensors with clean water
and clean using a soft brush.
2. Switch on the power supply to the pump.
3. Check that the pump starts and pumps down to
the dry-running level.
To avoid damaging the sensors, do not use
Caution
other cleaning aids than those mentioned
above.
If the dry-running sensors are not covered
Note
by liquid, the pump cannot start.

11.7 Checking or replacing the shaft seal

The shaft seal is a complete unit for all SEG
AUTO
pumps.
ADAPT
To make sure that the shaft seal is intact, check the
oil.
If the oil contains more than 20 % water, the shaft
seal is defective and must be replaced. If the shaft
seal is still used, the motor will be damaged.
If the oil is clean, it can be reused. See also section
11. Maintenance and
service.
For position numbers, see page 560.
19

Werbung

loading