Astralpool A144C3 Owner's Manual - Page 11
Browse online or download pdf Owner's Manual for Water Pump Astralpool A144C3. Astralpool A144C3 16 pages. Self-priming commercial centrifugal pumps with trap for swimming pool use
Print PageIf pump does not prime, make sure that all valves are open, suction pipe end
is under water and that there are no leaks in suction pipe. Fill strainer to bot-
tom of inlet port. Make sure that there are no vacuum leaks around drain
plugs, gaskets, and O-Rings. See Troubleshooting Guide, Page 13.
NOTICE: To avoid corrosion damage to pump and strainer, do not add chemi-
cals to system anywhere on suction side of pump (including into skimmers).
Do not pour chemicals into strainer. Follow chemical manufacturer's instruc-
tions when mixing or adding chemicals to system.
COMMERCIAL POOL PUMP
DISASSEMBLY/ASSEMBLY
1. Disconnect all power to pump.
2. Close stop valves to cut pump off from system.
3. Drain pump and trap; be sure to vent pump.
4. Make sure that motor is solidly supported so that it does not drop when un-
bolted.
5. Unbolt bracket from volute; slide bracket, impeller and motor out as a unit.
6. Remove impeller screw, lock washer, impeller retaining washer.
7. With a wheel puller, pull impeller and key.
8. Remove shaft seal retaining ring.
9. Unbolt bracket from motor and slide bracket off shaft, brining seal with it.
10. Turn bracket face down; tap out stationary half of seal.
11. Inspect slinger, impeller skirt (outside impeller eye) and wear ring for dam-
age, pitting or wear; replace it if necessary.
12. Remove old gaskets and clean all gasket surfaces.
Fire and explosion hazard. DO NOT use gasoline as a
cleaning solvent.
13. Press in new stationary seal half. If necessary, protect seal surface with a
cardboard washer and tap into place using a piece of plastic pipe for a
press. DO NOT scratch, nick or mar seal face.
14. Install bracket on motor; be careful not to nick seal on shaft shoulder.
15. Slide rotating half of new seal onto shaft sleeve, polished face first. Install
retaining ring.
NOTICE: Do not lubricate shaft gaskets as this may interfere with sealing.
16. Install new impeller gasket on shaft.
17. Install impeller on shaft. Pull impeller into place with impeller screw and
retaining washer.
18. Remove impeller screw and washer; clean up screw with wire brush and
prime with Loctite Primer T.
19. Install gasket, retaining washer, sealing lock washer, and impeller screw in
that order. Use Loctite #271 to secure impeller screw. Tighten as shown:
3/8" impeller screw to 200 inch-lbs. (2.3 kg-m) torque;
1/2" impeller screw to 450 inch-lbs. (5.2 kg-m) torque.
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