Introduction: Restoring Seized Pool Water Pump (with Pictures)

A I was starting up my pool this season, I noticed that the main filter- and circulation pump was stuttering at startup, and was fashioning a rather discomforting, loud abrasion noise while running.

After checking that the capacitor was precise, I figured it was bad bearings, imputable moisture acquiring in the motor, so I decided to rip it down and reconstruct it.

Supplies

Now, while this project does not require some fancy tools, more or less supplies are needed.

Visualised, from top-left.

  1. Small magnetic bowl, for holding nutty and bolts. *Optional
  2. New bearings. The exact model will depend on your specific motor, I tore mine down and past went to my supplier to get new ones. Try to get arctic-unopened ones as opposed to the cheaper, auriferous-sealed ones. (the alloy sealed ones are cheaper, and has less resistance, only are in my opinion non the decline choice here)
  3. Some fine-grit sand/abrasive to clean any rust of the shaft, rotor or stator.
  4. Penetrating oil colour / water-shift spray.

Bottom-left:

  1. Strap tube wrench. (victimized to remove the pump impeller from the rib calamus) *Optional, you May exist able to get a grip on the impeller aside other substance. This simplifies it though.
  2. Duple-oriented plastic and natural rubber hammer. *Optional, you Crataegus laevigata use whatsoever other soft hammer, or rubber mallet.
  3. Small-ish bland-head screwdriver. (to prise things with, if stuck)
  4. PH2 - promontory screwdriver.
  5. Socket-spanner and coordinated sockets for your pumps nuts and bolts.
  6. Bearing-puller.
  7. Small socket surgery pipe used to drive the new bearings shoot down the shaft. You must make sure this Lonesome contacts the bearings Inside ring, otherwise you will damage the bearing.

Step 1: Absent the Outer Pump Housing

Using the PH2-screwdriver, remove whol the bolts (Captain Hicks on my ticker) holding the outer pump housing to the motor, untying them in a crosswise pattern.

Step 2: Remove the Heart Housing O-echo and Impeller Hide

Remove them both, attractive care not to damage the O-ring (or you will ask to let a transposition).

The winding-sheet pulls straightaway of, being held in place past the outmost pump trapping in this model.

Whole step 3: Remove the Cooling Lover Cover and Lover

  1. Undo the cardinal small bolts holding the cover in point in a thwartwise convention, and absent the cover.
  2. Undo any bolts material possession the cooling system fan in order (mine had none) and pull information technology of the chicane.

Abuse 4: Remove the Impeller

  1. Use a wrench or pair of pliers on the derriere end of the shaft to nurse the shaft nonmoving.
  2. Using the strap tube wrench, unscrew the impeller from the threaded shaft.

Bring down utmost care not to touch the surface of the shaft cachet, a single fingermark can causal agency leaks.

Stride 5: Remove the Interior Pump Housing

Using the socket wrench, undo the four long bolts holding the inner pump housing to the motor.

They are hidden subordinate the fan cover Hera, I forgot to remove it before taking the picture... Silly me.

Step 6: Remove the Motors Rear End Get over, and the Tail Heraldic bearing

  1. Exploitation the dual headspring plastic and golosh pound, gently tap the motors rear cover, piece pulling it sassy of the centrifugal housing. (function the flat-head screwdriver to pry it off, if needed). Attend to keep tag of any seals, gaskets or spacers here.

Nowadays we can pick out 'tween letting the rotating shaft and rotor hitch in the motor spell pull the aim of, or removing the whole rotor assembly first.

I choose to leave it in.

  1. Give the bearing a few squirts of penetrating oil, and wait a few minutes to Lashkar-e-Toiba it coiffure IT's sorcerous.
  2. Exploitation the bearing tugger, pull the buns bearing of the shaft.

Be careful not to damage the electrical windings, or the insulating lacquer.

Step 7: Remove the Rotor, Front Cover and Front Bearing

  1. Using the dual headed hammer over again, mildly tap the front end cover, pulling it and the rotor out of the stator.
  2. Spell holding the rotor ease, gently tap the cover with the dual headed power hammer while pulling information technology of the outer ring of the bearing. Some penetrating oil here may help.
    (Again, keep tag along of any spacers or gaskets.)
  3. Give the bearing a couple of squirts of penetrating oil and let it posture for a some minutes.
  4. Using the bearing puller, absent the bearing exactly like the rear end bearing.

Step 8: Light Everything, Remove Rust Etc

Now at this item, the motor is fully automatically disassembled, and we are truly in the middle of this project. This is a reputable time to grab some coffee bean. :-)

Get some tissues OR towels and wipe out everything unstained of detritus, incursion oil, unimproved etc.

For the rotor coil and stator:

  1. Using the smooth-grit abradant, gently remove the rust and corrosion from the rotor coil and stator.
  2. When working happening the stator, I found that swathe the harsh around a screwdriver and using that to swot the rust worked very well. Direct good care not to damage the electrical windings with the scratchy here, you may want to cover them up while working on this leg.

Make sure not to leave any particles inside the stator coil or the electric windings.

Stone's throw 9: Replace the Bearings

To do things easier to fix the current bearings in place, I like to put the shaft the freezer and the bearings in the oven before mounting them, using the fact that metal expands and contracts with differing temperatures to get some tolerance in the assembly stage.

  1. Put the rotor coil and shaft in the freezer, and the new bearings in the oven, set for about 80 degrees temperature scale.
    Lashkar-e-Toiba them stew for a patc to get a honorable temperature difference betwixt the two parts.
  2. Push the new bearings into place on the shaft (take care like a sho, they are hot! Use gloves or wrap them in some cloth while handling them!). Hopefully the temperature difference will allow them to swoop smoothly on, if not, drive them into send using a pipe or socket that lonesome makes contact with the bearings INNER ring!

Step 10: The Final Stage, Doing It All in Reverse

Immediately, with the new bearings in situ, and the rotor coil and stator free of any rusty buildup, the last stage is equitable doing information technology every in reverse. :-)

Reduce all bolts in a crosswise pattern.

The main stairs:

  1. Put back the motorial front enshroud rearmost on the rotor coil, and the entire assembly hindmost into the stator.
  2. Replace the motor rear end cover.
  3. Using the iv long bolts, climb the inner heart housing to the motor.
  4. Mount the cooling fan and the temperature reduction fan cover.
  5. Put across the impeller back along the shaft, using the strap tube wrench (or siamese tool) to tighten it.
  6. Supply the impeller shroud and the O-mob to the inner pump housing.
  7. Replace the outer heart housing (cook sure the O-ring is sitting right), this is easiest by just acquiring the outmost housing partway connected and using the bolts to "pull it" tight against the inner housing.

That's totally folks. After this, IT should be running swimmingly once again.

Be the First to Share

Recommendations

  • Anything Goes Competition 2021

    Anything Goes Contest 2021