Grundfos Redi-Flo 2 Скачать руководство пользователя страница 22

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MAINTENANCE REDI-FLO2

MAKE SURE YOU LINE UP THE

MOTOR LEAD WITH THE RECESSED AREA

IN THE PUMP HOUSING TO AVOID

SCRAPING THE INSULATION FROM THE LEAD

Dismantling & Reassembling Pump End

The Redi-Flo2® pump can be dismantled and reassembled quickly and easily by referring to
the diagram on page 27 and following these steps:

DISMANTLING

1. Shut the pump off by placing the Redi-Flo VFD RSR switch in the stop position.

2. Disconnect Redi-Flo VFD from power supply or generator.

3. Disconnect the motor lead from the Redi-Flo VFD.

4. Remove the pipe or tubing connected to the pump (OPTIONAL).

5. Remove the Set Screw (position 12 in the diagram on page 27). Grasp the Inlet Screen

(position 1) and slowly but forcefully pull it up over the Pump Housing (position 2).

DO NOT ALLOW THE INLET SCREEN TO SCRAPE

THE INSULATION FROM THE MOTOR LEAD

6. Unscrew and remove the Pump Housing (counterclockwise when viewed from the top).

This will expose the impeller assembly (guide vanes, wear rings, etc.), which can now
be removed by hand for extended cleaning or replacement.

REASSEMBLY

To reassemble the Redi-Flo2® pump, refer to the diagram on page 27 and:

1. Make sure the motor lead is not connected to the Redi-Flo VFD.

2. Return the impeller assembly components (guide vanes, wear rings, etc.) to the shaft

in the proper order per impeller assembly diagram.

3. Screw the Pump Housing (position 2) back onto the top of the pump. If all of the impellers

and chambers were replaced correctly, the Pump Housing should screw on easily. Hand

tighten.

4. Slip the Inlet Screen (position 1) back over the Pump Housing. Screw the Set Screw

(position 12) back into the Inlet Screen.

Page 19

Dismantling & Reassembling Motor

If the pump is moved from well to well, it should be thoroughly decontaminated prior to being
installed in the next well. In addition to cleaning the individual components inside and outside,
the water in the pump motor should be replaced using the syringe that came with your pump.
This can be accomplished through the following steps:

1. Shut the pump off by placing the Redi-Flo VFD RSR switch in the stop position.

2. Disconnect Redi-Flo VFD from power supply or generator.

3. Disconnect the motor lead from the Redi-Flo VFD.

4. Remove the discharge tubing and the pump end (follow dismantling procedure

page 19).

5. Turn the pump and motor upside down.

ml.

6. Use a flat blade screwdriver

to remove the filling screw
on the bottom of the motor.

7. Remove the three Allen

head set screws at the
bottom of the motor with

2.5 mm Allen wrench.

8. Push gently on the motor

shaft to move bearing
housing out of the stator
housing.

9. Continue to remove bearing

housing and motor shaft
from stator housing.

10. Clean motor shaft with a

brush.

11. Empty the water from the

motor.

12. Clean inside of stator

housing with a brush.

13. Replace motor shaft into

stator housing.

14. Refill motor using

contaminant-free deionized

water using the syringe that
came with your Redi-Flo2®
pump.

Page 20

15. Replace bearing housing

and tighten Allen screws.

16. Continue to add water

until the level is even with
the bottom edge of the
screw hole.

17. Replace and tighten the

filling screw.

18. Turn the pump over

several times, then
remove the filling screw
again to let any trapped
air escape (if air is left
inside the motor, the life of
the motor will be short-

ened). Add more water,

as necessary. Fluid should

overflow when the fill cap
is screwed back on the
motor cavity.

19. Replace and tighten the

filling screw.

20. Replace pump end and

piping (see reassembly
page 19).

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