Moyno 2000 CC Service Manual

Product catalog summary

Introduction
The Moyno 2000 pump is a progressing cavity pump designed for smooth, pulsation-free flow. This document outlines installation, maintenance, disassembly, and assembly procedures.

Installation
Ensure the pump is accessible for maintenance with adequate clearance. Suction and discharge piping should match the pump's diameter, and a strong steel baseplate is recommended for mounting.

Operation
Check electrical connections and ensure all valves are open before operation. Avoid running the pump against a closed valve and fill it with liquid to prevent dry operation.

Maintenance
Minimal maintenance is required, but regular checks, especially of the packing gland, are necessary to control leakage and ensure proper operation.

Disassembly and Assembly
Detailed procedures are provided for disassembly and assembly, emphasizing proper lubrication and careful handling of components.

Inspection
Regular inspection of the drive shaft, rotor, stator, and other parts is essential for maintaining efficiency and longevity.

Storage and Spare Parts
Guidelines for storage and a list of recommended spare parts are included to ensure readiness and reduce downtime.

Troubleshooting
A troubleshooting chart is provided to diagnose and resolve common operational issues.

Pump Maintenance Overview
This section details maintenance instructions, focusing on packing adjustment, replacement, and general disassembly and assembly procedures.

Packing Adjustment
Adjust packing gland nuts evenly to avoid overtightening. Aim for an initial leakage rate of 50-100 drops per minute, tightening gradually to 1-2 drops per minute.

Packing Replacement
Replace packing if leakage cannot be controlled by tightening. Inspect the drive shaft for wear and install new packing rings with lubrication.

Disassembly Procedures
Carefully disconnect the pump and remove components like the stator and rotor assembly, ensuring no damage occurs.

Inspection and Replacement
Inspect the drive shaft and replace O-rings and seals as needed. Check rotor wear and replace if necessary.

Assembly Procedures
Lubricate gear joints and packing rings during assembly, using approved lubricants and ensuring proper alignment.

Lubrication and Seal Installation
Use specified lubricants for gear joints and packing. Install mechanical seals carefully to avoid damage.

Storage Guidelines
For short-term storage, keep the pump indoors or covered. For long-term storage, remove the stator and apply rust inhibitor to unpainted surfaces.

Recommended Spare Parts
Maintain an inventory of spare parts like rotors, stators, and seals to minimize downtime.

Hardware and Parts Lists
Detailed lists of hardware and parts for various models are provided.

Catalog excerpts

SERVICE MANUAL

Open the catalog to page 1

The first six numbers and letters identify the pumps basic design characteristics. In the first space, a number identifies the number of stages in the pumping elements. This will generally be a 1 or 2. The second position, the letter ғB, designates the pump type as being close-coupled. In the third position, a letter designates the pumpԒs drive train (con rod/gear joint/drive shaft): A One size smaller than element (175/220 only) B ֖ Same size as element C Same size as element, but larger gearbox drive flange and drive shaft size (175/220/345 only)The next three positions, always numbers, identify...

Open the catalog to page 3

Page 2 The next letter indicates whether there are any special options being used in the pump, typically this is an A for no special options. The next letter indicates the suction configuration. For this pump an A is used designating a standard flanged pump. The last letter indicates the drive configuration and flange/shaft/seal size. In our close coupled pump nameplate the C designates a 250mm flange and 45mm shaft. > CAUTION: DRY OPERATION IS HARMFUL TO THE PUMP! Never allow the pump to operate without liquid, as dry operation will cause premature wear of the stator and possible damage. The...

Open the catalog to page 4

When packing is new, frequent minor adjustments during the first few hours of operation are recommended in order to compress and seat the packing. 1. Upon initial start-up of the pump, adjust the gland nuts for a leakage rate of 50-100 drops per minute until the packing has seated and adjusted to the operating temperature (approximately 10-15 minutes). 2. If leakage is excessive after 15 minutes of operation, tighten the gland nuts of a turn. 3. Tighten the gland nuts ܼ of a turn after an additional 15 minutes if necessary and repeat this procedure until a desired leakage of 1-2 drops per minute...

Open the catalog to page 5

Page 6 2. Gently push the stationary portion of the mechanical seal into the recess in the seal housing (140). Place the O-ring (530) on the shoulder of the seal housing. 3. Slide the seal housing into the drive adaptor (10). Secure the suction housing (100) to the drive adapter (10) with four hex head screws and lock washers (20/30). Take care to be sure the o-ring (530) is placed on the seal housing (140) before assembling. 4. Next, carefully slide the rotating/stator assembly first through the suction housing (100) and then through the seal stationary face in the seal housing and over the...

Open the catalog to page 8