Customer Support and Repair Services

At HyFlex, we partner with our clients to make sure every job is successful.

Equipment Repair and Maintenance Services

Let the HyFlex maintenance team take care of your major maintenance and repairs for you. Our fast turnaround time ensures you'll get your equipment back out on your jobsite quickly. Most repairs can be completed within just a couple days.

  • Repair service

  • Equipment maintenance and tune-ups

  • Rebuilding services

  • Refurbishing service (321E)

Contact us to discuss details.

Customer and Field Service Support

When you need field service, our Customer Support Services team is here to help! Contact us with your questions or review our resources below for more information.

About Your Technical Services Lead, Lowell Knott (LK)

LK has been with HyFlex Corporation for over 15 years and is very knowledgeable about the equipment.  He has been involved with the technical services of the company since day one, with his direct hands on approach with the equipment he has been able to troubleshoot and fix issues for customers.  He has been wrenching on things his whole life this includes his hobby of working on cars and repairing farm equipment.

He has seen it all when it comes to pumps in the field.  Having gone to multiple job sites and been involved in many high profile jobs, he understands the challenges someone is going to face on the job site.

When you call into HyFlex and you get LK on the phone, you know your problem will be resolved.  He takes the time and attention that every customer deserves to get to a resolution.


Lowell Knott (LK)

Frequently Asked Questions

What are the power requirements for my pump?

This question comes up often, it differs from pump to pump.  Please see this chart to determine what power you need:

Patch Pump/Spray Buddy 115V 15 full load amps
RS24E 208-240V 20 full load amps
HZ30E 208-240V 30 full load amps
321E 7.5HP Single Phase 208-240V 38 full load amps
321E Standard 208-240V 3 phase 39 full load amps
321E High Pressure 208-240V 3 phase 39 full load amps

-high voltage units by request only

Please call us for pigtail and cord sizes.
How much life can I get out of my pumps wear items?
Each pump has specific parts that wear out over time while being used.  Here are some general guidelines to them, due keep in mind this all varies based of material and pressures.  A rotor/stator you can expect a minimum of 1000 bags of material with a maximum of 5000 bags. Drive pins should be replaced with every rotor change.  On our piston pumps you have parts such as the piston cups which have a minimum of 5000 bags with a maximum of 30,000 bags, as well as the balls and seats which should get you 10,000 - 30,000 bags before change out.
How do I replace a stator tube?

The stator tube change out is a very simple process, but it does have a few tricks to it.  Please reference this video we made on how to change one out.



My rotor/stator pump will not push out sponge balls.

If your pump has lost pumping pressure than you will have some worn components.  This will either be the stator tube, rotor, or both needing to be replaced.  

You can check the pump pressure with a gauge and it needs to read at least 100 psi in order to push the sponge ball.

My drive pins keep breaking on my HZ30E or Spray Buddy.
If you are constantly breaking drive pins on your rotor/stator pumps that is a good sign of a worn connecting rod or drive shaft.  We have replacement parts available on our web store
Why won't my new rotor/stator pump turn?
In storage the pumps can be on the shelf for some time.  This can cause the rubber of the stator tube to stick to the rotor.  If this happens the pump will not turn.  This can easily be fixed by filling the hopper with water and putting the machine in forward and reverse multiple times to un-stick the rotor.
My 321 piston pump is only giving me half production?

There will be an obstruction in the lower intake manifold of the pump.  This is due to clumpy material, foreign objects, or dry material.  You would need to remove the lower manifold and clear the obstructions. See this video on how to remove the manifold.


Downloadable Resources



30E Training & Troubleshooting

Get 30E training in this powerpoint presentation created by Lead Technician, Lowell Knott.

Download Resource 


321E Advanced Training Course

In this course, we will look into the operation and diagnostics of the 321E, and will break down all the components of the hydraulic and electrical system.

Download Resource  


321E Troubleshooting Guide

This guide presents several common 321E symptoms, along with what the possible problem may be, and the solution for that problem.

Download Resource 


321E Winterization Procedure

Download this resource to get a step by step breakdown on how to winterize your 321E.

Download Resource 


321E Maintenance Schedule

This pump maintenance checklist covers daily maintenance, weekly maintenance, monthly maintenance, and annual maintenance.

Download Resource 


321E Training & Troubleshooting

Get 321E training in this powerpoint presentation created by Lead Technician, Lowell Knott.

Download Resource 


30G Training & Troubleshooting

This presentation covers, 30G pump specifications, 30G pump troubleshooting, and 30G pump maintenance.

Download Resource 


CM71 Winterization Procedure

Download this resource to get a step by step breakdown on how to winterize your CM71.

Download Resource