Service manual for Robbins & Myers Moyno sanitary pumps covering installation, operation, maintenance and troubleshooting.
This service manual provides detailed guidance for the Robbins & Myers Moyno sanitary pump series. It includes information on pump rotation, model and frame designations, trim codes, piping, foundation requirements, shaft alignment, water‑flush of packing, and clean‑in‑place (CIP) options.
The manual also covers operating procedures, initial checks, startup cautions, maintenance tasks such as packing adjustment and replacement, disassembly and re‑assembly steps, and a troubleshooting chart. Technical specifications, part numbers and recommended practices are presented throughout the document.
| Normal rotation direction | Clockwise when viewed from the driven end |
|---|---|
| Recommended water‑flush flow rate | 0.5 to 2 gpm |
| Shaft bearing relubrication interval | Every 8,000 to 10,000 operating hours |
| Packing leakage rate during adjustment | 1 to 2 drops per second |
| Foundation size recommendation | 4–8 inches larger than the base plate |
The pump rotates clockwise when viewed from the driven end.
Shaft bearings should be inspected and relubricated or replaced every 8,000 to 10,000 operating hours.
A flow rate of about 0.5 to 2 gallons per minute is recommended.
Adjust the gland nuts for a leakage rate of 1 to 2 drops per second.