Pentair Plunger Pump 2412B-P

Fill a one or five-gallon container with water

Is the water flow rate sufficient?

Preventive Measures to Avoid Cavitation

Ensure suction line size is adequate

Use high-capacity, clean line strainers

Check vacuum at the suction side

Protect the pump from overheating

Protect the pump from severe cold

Remove the pump head from the crankcase as described in the packing replacement section.

Remove the plunger retaining nut.

Carefully slide the plunger off of the lower plunger.

Remove the o-ring from the lower plunger.

Remove the plunger retaining nut and slinger ring.

Plunger Inspection and Preparation

Inspect the plungers for cracking or damage.

Check the oil level using the dipstick

Use Hypro Oil (P/N 2160-0038) for lubrication

Enter the crankcase capacity for PowerLine Plus 2400B-P/2430B-P pumps

Change oil after 500 hours of operation

Was the oil changed successfully?

See the packing replacement instructions for head removal.

Remove the plunger nut, plunger and slinger ring.

Lift the oil seal retainer cartridge from the crankcase using a 90˚Allen wrench or bent bar.

Remove the o-ring from the outside of the cartridge.

Remove six head bolts using a 1/4" Allen wrench.

Turn the shaft to push the head from the crankcase assembly.

Pull the head off the plungers.

Remove the cup retainer assembly from the cylinder head using fingers or external pliers.

Remove the Teflon backup ring and the high pressure cup from the head.

Remove the low pressure seal from the cup retainer with a small flat-blade screwdriver.