Peerless Pump Company Pump C825A

Enter the complete pump nameplate data when ordering repair parts

Remove burrs, nicks, and scratches from non-critical areas

Is the pump capacity falling off due to wear on the impeller and casing ring?

Measure the inside diameter of the casing ring

Replace all gaskets, O-rings, and seals during reassembly

Are the O-rings for the floating seat of the mechanical seal or shaft sleeve undamaged and reusable?

Visually inspect and replace parts that are damaged and affecting the serviceability or sealing

Emphasize inspection of mating parts having relative motion — casing rings, for example

Check O-rings, gaskets, and seals for shrinkage, cracks, nicks or tears

Check packing rings for excessive compression, fraying or shredding, embedded particles (dirt or metal) — replace if defective in any way

Examine impeller passages for cracks, dents, gouges or embedded material

Inspect shaft sleeves (14) for excessive wear — replace sleeves that are worn

Inspect lapped surfaces of sealing washer and floating seat for chipping, gouges, nicks, scratches or other damage — these surfaces must be free from any defect — if lapped surfaces are damaged, replace the entire seal

Has the pump capacity fallen off due to wear on the impeller and casing ring?

Replace the casing ring if wear is detected

Measure the inside diameter of the casing ring

Examine impeller passages for cracks, dents, gouges or embedded material

Inspect mating parts with relative motion, such as casing rings

Reassembly — Post-assembly checks

Rotate shaft by hand after installing impeller lock screw (26) to check for free movement

Rotate shaft by hand after seating adapter (71) to check for no binding or hang-up

Tighten gland bolts (17B) on packed pump as required to limit leakage after pump is running

Verify seal piping (tubing) is installed between pump discharge and stuffing box of adapter if used

Verify casing cap screws are tightened uniformly in a star pattern to correct torque

Inspect lapped surfaces for damage

Are the lapped surfaces free from defects?

Are the lapped surfaces damaged and require replacement?

Is there any seal leakage during operation?

Are all seal parts replaced after disassembly?