Peerless Pump Company Pump C1050A

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

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

Ensure gland enters the box square to the shaft to exert uniform pressure around the packing

Monitor packing (13) for excessive leakage during operation

Check packing rings (13) for excessive compression, fraying, shredding, or embedded particles

Install packing rings and lantern ring (if furnished)

Stagger the joint of each packing ring approximately 180 degrees from adjacent rings

Ensure each ring is square with the shaft

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 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

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 install adapter

Install screws and tighten uniformly

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

Lubricate and install components

Clean all metal parts with a solvent

Use a bristle brush to remove tightly adhering deposits

Use a fiber scraper to remove gasket and shellac from casing flanges

Blow dry with clean dry compressed air

Cleaning — Mechanical Seal Parts

Clean seal parts using a mild soap solution only

Run only with finger to remove dirt

Rinse with clear water and dry with mild air stream