Section:

MOYNO

®

500 PUMPS

Page: 1 of 4

Date: March 1, 1998

SERVICE MANUAL

MOYNO

®

500 PUMPS

300 SERIES

30100, 30102, 30104, AND 30105 MODELS

DESIGN FEATURES

Housing: Phenolic

Pump Rotor: Phenolic

Elastomers: NBR, EPDM, FPM

Shaft: Carbon steel

Bearings: Prelubricated, fully sealed ball bearings mounted on shaft and integrally cast in pump body.

Seal: Mechanical (carbon/ceramic)

Mounting: Resilient mountings for quiet operation

Port Size: 1” OD for hose connections

INSTALLATION

Mounting Position. Pump may be mounted in any position. When mounting vertically, it is necessary to keep bearings above seals to prevent possible seal leakage into bearings.

Pre-Wetting. Prior to connecting pump, wet pump elements and mechanical seal by adding fluid to be pumped into suction and discharge ports. Turn shaft over several times in a counterclockwise direction to work fluid into elements.

Piping. Install 1” ID hose using adjustable hose clamps. If hose is lengthy, it should be supported to avoid excessive strain on pump housings.

Drive. On belt driven units, adjust belt tension to point of non-slip. Do not overtighten.

On direct drive units, coupling components should be aligned and spaced at least

1

/

16

” apart.

Note: Pump shaft diameter is .6267”. Pulley or coupling may have to be hand reamed for proper fit.

Check rotation before startup. Rotation must be counterclockwise when facing shaft to prevent rotor unscrewing from shaft.

Maximum speed is 1750 rpm.

OPERATION

Self-Priming. With wetted pumping elements, the pump is capable of 25 feet of suction lift when operating at 1750 rpm with hose size equal to port size. Be sure suction lines are air tight or pump will not prime.

DO NOT RUN DRY. Unit depends on liquid pumped for lubrication. For proper lubrication, flow rate should be at least 10% of rated capacity at a given rpm.

Pressure and Temperature Limits. Maximum discharge pressure is 25 psig. Unit is suitable for service at temperatures shown in Table 1.

Storage. Always drain pump for extended storage periods by removing suction and discharge lines, loosening resilient mount clamps and turning discharge port to drain position.

Table 1. Temperature Limits

Elastomer

*NBR

*EPDM

*FPM

Temperature Limits

10°-160°F

10°-210°F

10°-240°F

*NBR = Nitrile

*EPDM = Ethylene-Propylene-Diene Terpolymer

*FPM = Fluoroelastomer

TROUBLE SHOOTING

WARNING: Before making adjustments, disconnect power source and thoroughly bleed pressure from system. Failure to do so could result in electric shock or serious bodily harm.

Replace belt or coupling guards before reconnecting power.

Failure To Pump.

1.

Belt or coupling slip: Adjust belt tension or tighten set screw on coupling.

2.

Stator torn; possibly excessive pressure: Replace stator, check pressure at discharge port.

3.

Wrong rotation: Rotation must be counterclockwise when facing shaft.

4.

Threads in rotor or on shaft stripped: Replace part. Check for proper rotation.

5.

Excessive suction lift or vacuum .

Page 2

Pump Overloads.

1.

Excessive discharge pressure: Check discharge pressure for 25 psig maximum or obstruction in discharge line.

2.

Fluid viscosity too high: Limit fluid viscosity to 20,000 CP or 100,000 SSU.

Viscosity CP

1-300

300-1,000

1,000-2,000

2,000-5,000

5,000-10,000

10,000-20,000

Limit RPM

1750

1200

700

350

180

100

3.

Insufficient motor HP: Check HP requirement.

Noisy Operation.

1.

Starved suction: Check fluid level, size of piping, and obstructions in pipe.

2.

Bearings worn: Replace pump body.

3.

Insufficient mounting: Check base for rigidity. Add support if necessary.

Seal Leakage.

1.

Leakage at startup: If leakage is slight, allow pump to run several hours to let faces run in.

2.

Persistent seal leakage: Faces may be cracked from freezing or thermal shock. Replace seal.

Pump Will Not Prime.

1.

Air leak on suction side: Check hose connections .

PUMP DISASSEMBLY

WARNING: Before disassembling pump, disconnect power source and thoroughly bleed pressure from system. Failure to do so could result in electric shock or serious bodily harm.

1.

Disconnect power source.

2.

Disconnect suction and discharge hoses. Loosen support clamps (146) and remove pump from base (142).

3.

Remove screws (112) which secure suction housing (2) to pump body (1). Remove suction housing (2) and stator

(21).

4.

Rotor (22) can be removed from shaft by turning in a clockwise direction (LH thread).

5.

Remove rubber washer and ceramic seal face from shaft. Lift seal body out of seal bore in pump body. If any parts of the mechanical seal (69) are worn or broken, the complete seal assembly should be replaced. Seal components are matched parts and are not interchangeable.

6.

The bearings and shaft assembly is molded into the pump body and should not be removed. Pump body and shaft are a complete part.

PUMP ASSEMBLY

1.

Install mechanical seal (69) by oiling edge of seal body and pressing into seal bore squarely and firmly. Apply light oil to seal faces and slide ceramic face with rubber washer onto shaft. Be sure rubber washer is completely on shaft.

Caution: Do not use oil on EPDM parts. Substitute glycerin or soap and water.

2.

Screw rotor (22) onto shaft in a counterclockwise direction (LH thread).

3.

Install stator (21) on rotor, seating stator flange in groove on pump body (1).

4.

Assemble suction housing (2) to pump body (1). Do not overtighten screws, and apply even pressure on all screws so as not to strip threads in plastic housing.

5.

Connect hoses and follow installation instructions.

WARNING: Replace belt or coupling guards before reconnecting power.

Page 3

When ordering parts, please specify pump model number, pump serial number, part number, part description and quantity.

PARTS LIST

Item No.

1

2

*21

Description

Pump Body (Includes

Bearing and Drive Shaft)

Suction Housing

Stator

*22

64

64 A

*69

Rotor

Cushion Ring (2 req.)

Outer Ring (2 req.)

Mechanical Seal

112

142

Screws (6 req.)

Pump Support

146 Clamp (2 req.)

*Recommended spare parts.

**30100 pump is the same as 30102, less base.

30100

Pump Model Number

30102 30104

330-5311-000 (Phenolic)

**

**

**

**

NBR

340-3500-120

330-0945-000

EPDM

340-3500-320

320-6976-000

320-1486-000 (Phenolic)

320-1733-000

320-1734-000

320-6977-000

320-6936-000

330-1697-000

320-4277-000

NBR

=

Nitrile

EPDM

=

Ethylene-Propylene-Diene Terpolymer

FPM

=

Fluoroelastomer

30105

FPM

340-3500-520

320-6978-000

D

ouble The Length Of Your

Moyno Pump Warranty For

FREE!

For your

free

pump warranty extension, choose from one of the three options below:

1.

Go to www.moyno.com and fill out the registration form online

2.

Mail this form by placing it in an envelope and sending it to: Moyno, Inc.

Attn: Tish Wilson

3.

Fax this form to 937-327-3177

P. O. Box 960

Springfield, OH 45501-0960

U.S.A.

Thank you

for choosing a Moyno Pump. Please take the time to complete this warranty registration form.Upon receipt of your form, your standard limited warranty on defective material and workmanship will be extended to twice the standard period of time at no additional cost to you. We appreciate your business and look forward to serving you in the future.

MOYNO

™

Always Insist on Genuine Moyno Replacement Parts!

Moyno

®

Pump Warranty Registration

Pump Model #

Purchased From

Your Name

Your Company Name

Address

City/State (Province)/Zip Code

Phone Number

E-mail

Application for Which This Pump Was Purchased

Material Flow Rate

Operating Speed

Hours Operated per Day

Viscosity

Continuous

Discharge Pressure

Percent of Solids

Suction Pressure

Particle Size

Pump Serial #

Date Purchased

Your Title

Fax Number

How Did You First Hear of Moyno Pumps?

❑ Advertisement

❑ Distributor Salesperson

❑ Postcard ❑ Trade Show

❑ Previous Experience With Moyno Pumps

Process Temperature pH Value

Intermittent

NPSH Available

Abrasion Rating

❑

❑

Referral

Other – Explain Below

Thank You!

© 1999 by Moyno, Inc.

® Moyno is a registered trademark of Moyno Inc.

Printed in U.S.A.