Flo Fab MCST Series - User Manual

Questions and Answers

B
Bob MunozAug 7, 2025
What to do if my Flo Fab MCST Water Pump stops delivering rated flow?
- J
  Jessica YoungAug 7, 2025
  If your Flo Fab Water Pump stops or fails to deliver the expected flow or pressure, several factors could be the cause. First, check for any air leaks in the suction line and correct them. Examine the suction hose for collapses and replace it if necessary. Inspect the pump gasket and seal for leaks or wear, replacing them if needed. Also, ensure the strainer isn't clogged and clean it if it is. Verify that the suction intake is submerged adequately and that the sump isn't too small, correcting the installation as needed. Finally, inspect the impeller and other wearing parts for damage or wear, replacing them and ensuring the impeller is properly centered and rotates freely.
K
Kimberly KingAug 13, 2025
Why is my Flo Fab Water Pump making excessive noise?
- D
  Dawn CalhounAug 13, 2025
  Excessive noise in your Flo Fab Water Pump can stem from several issues. Cavitation might be occurring within the pump; try reducing suction lift and/or friction losses in the suction line. The pump could be pumping entrained air, so locate and eliminate the source of air bubbles. Ensure the pump or drive is securely mounted by tightening mounting hardware. Lastly, check the impeller for clogs or damage, cleaning out debris or replacing damaged parts.
L
leah32Aug 19, 2025
Why does my Flo Fab Water Pump require too much power?
- V
  Vicki StanleyAug 19, 2025
  If your Flo Fab Water Pump requires too much power, several factors could be responsible. Check if the pump speed is too high and verify the driver output, ensuring sheaves or couplings are correctly sized. See if the discharge head is too low and adjust the discharge valve accordingly. Consider whether the liquid solution is too thick, and dilute it if possible. Lastly, inspect the bearings for freezing and disassemble the pump to check them.
L
Laura JohnsonAug 26, 2025
What to do if my Flo Fab MCST Water Pump clogs frequently?
- Z
  Zachary WeissAug 26, 2025
  If your Flo Fab Water Pump clogs frequently, consider these possible causes. If the liquid solution is too thick, dilute it if possible. Ensure the discharge flow isn't too slow by fully opening the discharge valve to increase the flow rate and running the power source at maximum governed speed. Also, check the suction check valve or foot valve for clogs or binding, and clean the valve if necessary.
A
Aaron MartinAug 31, 2025
Why are the bearings on my Flo Fab MCST Water Pump running too hot?
- J
  John LeeAug 31, 2025
  If the bearings on your Flo Fab Water Pump are running too hot, it could be due to several reasons. First, verify if the bearing temperature is high but still within acceptable limits, and monitor it regularly for any increase. Check for low or incorrect lubricant, ensuring the proper type and level are maintained. Make sure the suction and discharge lines are properly supported by checking the piping installation. Finally, ensure the drive is correctly aligned.

Summary

INTRODUCTION

SAFETY SECTION A

HAZARD AND INSTRUCTION DEFINITIONS

Defines symbols and terms used for safety warnings and instructions.

INSTALLATION SECTION B

Pump Dimensions

Provides physical dimensions and outline drawing of the pump.

PREINSTALLATION INSPECTION

Details steps to inspect the pump before installation for damage and readiness.

POSITIONING PUMP

Guidance on locating and placing the pump for optimal operation and safety.

Mounting

Instructions on how to securely mount the pump in its operational location.

Clearance

Specifies required space around the pump for maintenance access.

SUCTION AND DISCHARGE PIPING

Covers the proper installation of suction and discharge lines for efficiency and safety.

ALIGNMENT

Importance and methods for aligning the pump with its power source.

OPERATION SECTION C

PRIMING

Steps and procedures for preparing the pump to draw liquid and begin operation.

STARTING

Instructions on how to safely start the pump and associated power source.

Rotation

Specifies the correct direction of pump shaft rotation for proper operation.

OPERATION

General operating procedures for pumps with and without bypass lines.

Leakage

Guidelines for identifying and addressing pump leakage.

Liquid Temperature And Overheating

Information on safe operating temperatures and preventing pump overheating.

Strainer Check

Procedure for checking and cleaning the pump's suction strainer.

Pump Vacuum Check

How to check pump vacuum to ensure proper suction performance.

STOPPING

Procedures for safely shutting down the pump and power source.

Cold Weather Preservation

Steps to protect the pump from freezing during cold weather.

BEARING TEMPERATURE CHECK

How to monitor and check bearing temperatures for proper function.

TROUBLESHOOTING SECTION D

PUMP FAILS TO PRIME

Identifies causes and remedies for pumps not priming correctly.

PUMP STOPS OR FAILS TO DELIVER RATED FLOW OR PRESSURE

Troubleshooting steps for pumps that stop or underperform.

PUMP REQUIRES TOO MUCH POWER

Diagnosing and resolving issues causing excessive power consumption.

PUMP CLOGS FREQUENTLY

Solutions for pumps that frequently experience clogging.

EXCESSIVE NOISE

Identifying and addressing sources of excessive noise during operation.

BEARINGS RUN TOO HOT

Troubleshooting causes of overheating bearings.

PREVENTIVE MAINTENANCE

General recommendations and practices for maintaining the pump.

PUMP MAINTENANCE AND REPAIR SECTION E

PERFORMANCE CURVE

Explains how to read and use the pump performance curves.

ILLUSTRATION

Diagram showing pump components with part numbers.

PARTS LIST

Detailed list of pump parts with quantities and numbers.

PUMP AND SEAL DISASSEMBLY AND REASSEMBLY

Step-by-step guide for taking apart and putting back together the pump and its seals.

Back Cover and Wear Plate Removal

Procedure for removing the back cover and wear plate for service.

Rotating Assembly Removal

Steps to remove the rotating assembly from the pump casing.

Impeller Removal

Instructions on how to remove the pump impeller.

Seal Removal

Method for removing the pump's seal assembly.

Shaft and Bearing Removal and Disassembly

Guide for disassembling the pump shaft and bearings.

Shaft and Bearing Reassembly and Installation

Steps for reassembling and installing the pump shaft and bearings.

Seal Installation

Procedure for installing a new pump seal assembly.

Impeller Installation and Adjustment

How to install and adjust the pump impeller, including clearance.

Rotating Assembly Installation

Steps for installing the pump's rotating assembly.

Suction Check Valve Installation

Procedure for installing the suction check valve assembly.

Back Cover and Wear Plate Installation and Adjustment

How to install and adjust the back cover and wear plate for proper clearance.

PRESSURE RELIEF VALVE MAINTENANCE

Maintenance procedures for the pump's pressure relief valve.

Final Pump Assembly

Steps to complete the pump assembly after repairs or maintenance.

LUBRICATION

Details on lubricating the pump's seal assembly and bearings.

Power Source

Refers to consulting power source manuals for lubrication and maintenance.

THE FloFab 12 MONTH LIMITED WARRANTY

EXTENT AND DURATION OF WARRANTY

Outlines the coverage, exceptions, and duration of the product warranty.

LIMITATIONS

Details the warranty limitations, exclusive remedy, and damages.

Flo Fab MCST Series Specifications

General

Brand	Flo Fab
Model	MCST Series
Category	Water Pump
Language	English

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