Grundfos MP 1 / Redi-Flo2 - Maintenance and Service; Routine Pump Maintenance; Pump Servicing Guidelines

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Fig.13 Seal(pos.207)-A=minimal1.5mm
Fig.15 Washer(pos.285)-A=minimal1.0mm
Fig.14 Impeller(pos.213)-nomeasurablewear
Fig.16 Guidevanes(pos.232)-nomeasurablewear
10.2 Dismantling the pump
Procedure(seeg.12):
1. Place the pump in upright position with the discharge port uppermost.
2. Ifthepumpisttedwithhoseandttings,removethese.
3. Slacken and remove the screw (pos. 215a).
4. Remove the strainer (pos. 215).
5. Screw (right-hand thread) the pump housing (pos. 201a) off the suction interconnector on the motor
(pos. 1).
6. Pull the pump housing and the wear parts including impellers (pos. 200) off the motor shaft. Push the wear
parts including impellers out of the pump housing from the discharge side.
7. Dismantle the wear parts including impellers (pos. 200).
8. Clean the holes in the suction interconnector.
9. Clean and check all parts. See section 10.3 Checking of components.
For assembly of the pump, see section 10.4 Assembling the pump.
10.3 Checking of components
When the pump has been dismantled, all parts must be cleaned and checked for fractures, corrosion and wear.
Apart from the visual inspection, it is necessary to measure the following parts: