Filling With Oil; Removing The Seal Ring And Wear Ring; Removing The Pump Housing And Impeller; Removing The Shaft Seal - Grundfos SL1 Manual De Instrucciones

Filling with oil

1. Turn the pump so that the oil filling holes are placed opposite
to each other, pointing upwards.
Oil filling/venting
Fig. 19 Oil filling holes
2. Pour oil into the chamber.
For oil quantity, see section
3. Fit the oil screws with new gaskets.

11.2.2 Removing the pump housing and impeller

For position numbers, see pages
Procedure
1. Loosen the clamp (pos. 92).
2. Remove the screw using your fingers.
3. Remove the pump housing (pos. 50) by inserting two
screwdrivers between the stator housing and the pump
housing.
4. Remove the screw (pos. 188a). Hold the impeller with a strap
wrench.
Fig. 20 Removing the impeller
5. Loosen the impeller (pos. 49) with a light blow on the edge.
Pull it off.
6. Remove the key (pos. 9a) and the spring for impeller
(pos. 157).
11.4 Oil quantities.
81 and 82.

11.2.3 Removing the seal ring and wear ring

Procedure
1. Turn the pump housing upside-down.
2. Knock the seal ring (pos. 46) out of the pump housing using a
punch.
Fig. 21 Removing the seal ring
3. Clean the pump housing where the seal ring was fitted.
4. Remove the wear ring (pos. 49c) using a screwdriver.
Fig. 22 Removing the wear ring
5. Clean the impeller where the wear ring was fitted.

11.2.4 Removing the shaft seal

Procedure
1. Remove the screws (pos. 188).
2. Remove the cover for oil chamber (pos. 58) using a puller.
3. Remove the screws (pos. 186).
4. Remove the shaft seal (pos. 105) using the puller.
5. Remove the O-ring (pos. 153b).
Procedure (pump with WIO sensor)
1. Remove the screws (pos. 188).
2. Remove the cover for oil chamber (pos. 58) using a puller.
3. Remove the screws (pos. 186).
4. Remove the sensor (pos. 521) and holder (pos. 522) from the
shaft seal.
5. Remove the shaft seal (pos. 105) using the puller.
6. Remove the O-ring (pos. 153b).
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