Pentair Plunger Pump 2231A-P

Remove the pump head from the crankcase

Remove the plunger retaining nut and slide the plunger off the lower plunger

Remove the o-ring from the lower plunger

Remove the plunger retaining nut and slinger ring

Inspect the plungers for cracking or damage

Replace the slinger ring when a ceramic plunger is removed

Use Locktite 242 on the plunger nut

Install the slinger ring onto lower plunger

Time to fill a one or five-gallon container

Does the water supply exceed the required gallons per minute?

Suction Line and Strainer Check

Is the suction line size adequate?

Inspect line strainers for cleanliness and capacity

Measure vacuum at the suction side

Is the pump protected from overheating?

Oil Seal Replacement for 2200B-P and 2300B-P Series

Ensure all required tools are available

Drain the oil from the crankcase using a 9/16" hex wrench

Remove the cylinder head and plunger retaining nuts with a 9/16" hex wrench

Remove the plungers and slinger rings

Inspect the plunger rods for nicks or scratches

Are the plunger rods free of nicks or scratches?

Replace the plunger seals if there is water leakage from the weephole

Use a 3/16" Allen wrench to remove the cylinder head bolts

Remove the head from the crankcase assembly

Rotate the shaft and remove the cup retainers from the plungers

Remove the cup retainer and the cup from the cylinder head

IMPORTANT: Hypro PowerLine Plus pumps are filled with Hypro Oil.

Change oil after 40 hours of break-in operation.

Change oil every three months or 500 hours, whichever comes first.

Check the oil level using the dipstick.