Astralpool BX Series Instrukcja obsługi - Strona 7

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PUMP DISASSEMBLY

1. All moving parts are located in the rear sub-assembly of this pump. Tools required:

a. 3/16 inch Allen head wrench.

b. 1/2 inch open end wrench.

c. 1/2 inch open end wrench or socket.

d. Flat blade screwdriver or ¼ inch nut driver to remove motor cap.

e. Phillips screwdriver

2. To remove and repair the motor sub-assembly perform the following procedures.

a. Turn off the pump circuit breaker at the main panel.

b. Drain the pump by removing the drain plugs.

c. Remove the 6 bolts that hold the main pump body (strainer pot/volute) to the rear sub-assembly.

d. GENTLY pull the two pump halves apart, removing the rear sub-assembly.

e. Use a Phillips head screw driver to loosen the two holding screws located on the diffuser.

f. Remove the shaft cap located at the back of the motor and hold the shaft secure with a ½ inch open- end

wrench.

g. Hold the impeller securely in place and remove the impeller lock screw by using a 3/16 inch Allen head

wrench. The screw is a left-handed thread and loosens in a clockwise direction.

h. To unscrew the impeller from the shaft, twist the impeller counter-clock wise.

i. Remove the four bolts from the seal plate to the motor, using a 1/2 inch wrench.

j. If replacing the mechanical seal set, see Sect. B. "Pump Reassembly/Seal Replacement" on next page.

PUMP REASSEMBLY AND SEAL REPLACEMENT

1. When installing the replacement shaft seal, use a light density soap and water to seal the seal. Press the seal

into the seal plate with your thumbs and wipe off the ceramic and carbon faces with a clean cloth, and ensure

the seal is fully seated. See Figure 4.

2. Before installing the ceramic section of the seal into the impeller, be sure the impeller is clean. Use a light

density soap and water to seal the seal. Press the seal into the impeller with your thumbs and wipe off the

ceramic and carbon faces with a clean cloth.

3. Remount the seal plate to the motor by installing bolts in an X pattern while tightening them.

4. Clean the motor shaft thread and the impeller insert, then screw the impeller onto the motor shaft.

5. Screw in the impeller lock screw (counter-clockwise and tighten while holding the motor shaft with wrench).

6. Remount the diffuser onto the seal plate. Make sure the plastic pins and holding screw inserts are aligned.

7. Grease (with a non petroleum-based grease) the diffuser O-ring and seal plate gasket using silicon grease.

NEVER USE PETROLEUM BASED GREASE AS IT DEGRADES O-RINGS AND SEALS.

8. Grease (with a non petroleum-based grease) the bolt threads. Assemble the motor sub-assembly to the strainer

pot pump body by using the two through bolts for proper alignment. Do not tighten the through bolts until all

6 bolts are in place and finger tightened first. When tightening, alternate torqueing of bolts using an X-pattern

to maintain even tightening.

9. Fill the pump with water.