Peerless Pump Company Pump C830A

Reassembly — Mechanical Seal Type

Lubricate O-ring (65B), groove in floating seat (65A) and seat cavity in adapter (71)

Install floating seat in the adapter with lapped surface facing away from adapter shoulder

Apply lubricant to entire surface of shaft sleeve and carefully install adapter

Check that adapter is seated against motor without cocking or scraping floating seat

Rotate shaft by hand to check for binding or hang-up

Lubricate and install components

Obtain a set of spare parts before starting disassembly

Do not reuse gaskets, O-rings, packing rings, or ball bearings

Disconnect power to the pump driver before starting any repairs

Refer to Bulletin No. 2880549 for the pump removal procedure to follow

Pump Disassembly - Mechanical Seal Type

Remove any seal piping (tubing) between pump discharge and stuffing box of adapter

Inspect lapped surfaces for damage

Are the lapped surfaces free from defects?

If lapped surfaces are damaged, replace the entire seal

Monitor for seal leakage during operation

Is there any seal leakage indicating damage?

Replace all seal parts at each disassembly

Enter the complete pump nameplate data when ordering repair parts

Remove burrs, nicks, and scratches from non-critical areas with a fine stone or crocus cloth

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

Replace the casing ring if the pump capacity has fallen off

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?

Reuse undamaged O-rings with other satisfactory seal parts

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 having relative motion