How to repair Grundfos CM, CME 1, 3, 5, 10, 15, 25 (cast iron) pumps

See how a Grundfos service specialist repair Grundfos CM, CME 1, 3, 5, 10, 15, 25 (cast iron) pump and find out what the job requires and how it is performed.
The different sections include:
00:13 Dismantling of chamber stack
02:10 Removal of shaft seal
03:33 Fitting of shaft seal and gasket
04:51 Fitting the chamber stack
Learn more about CM CME, spare parts, service kits and additional services and solutions provided by Grundfos on product-select... and do not hesitate to contact us via www.grundfos.co....
DISCLAIMER
This service video provides “how to” guidance for Grundfos products and is aimed only at skilled, trained personnel.
N.B. Any stricter local health and safety regulations and requirements take precedence over this guidance.
The video and any information in it is provided on an “as is” basis and without any liability and/or warranty to the extent permitted by applicable law.
Grundfos reviews and updates the information provided on a regular basis. However, instructions may have changed since publication of this video and therefore please always check the latest Service Instructions and the Installation & Operating Instructions of the related product.
These documents can be found on product-select...
#pumpservice #pumprepair #grundfospumps #grundfosservice

[@KamranAli-ji2lp]

If I post you the picture of my motor would you tell about it’s model . And availability of parts if needed .

[@grundfos]

Hi Kamran, thanks for reaching out to us. The easiest way to find out what model your pump is and if spare parts are available is by contacting your local supplier. May I ask where you are located?
Kind regards, Sofie

[@yapkh8]

My grundfos pump when cutting off time has a Howling noise. What is that? And I have change. A new pressure switch. Pump comes off and on every 20sec. Pump run when tap is close. Please advice

[@grundfos]

Hi Errand - Thanks for reaching out. Where are you located? This information will help us find the best contact to assist you further. Thanks, Susan

[@17th_Street_Preacher]

So leak out the bottom hole is shaft seal?

[@grundfos]

Hi zenLife, thanks for your enquiry. Are you able to advise exactly which pump you are referring to and some more context for what is occurring and how long you've had the pump etc? Please also advise what country you are in so we can refer you to the right people in your location. Kind Regards, Aaron

[@17th_Street_Preacher]

@@grundfos a ch2-50 pump, roughly 20yrs old, I noticed water coming out the intake area, near the Allen key bolt in the iron cover, thanks

[@grundfos]

Hi zenLife, it would seem that you may need to have a plumber or installer take a look to better diagnose the problem. Once you've worked out exactly what's needed, I know we do have spare parts available for the ch2 range in Australia but I can't speak for other countries. You would need to contact your local Grundfos Service department to then purchase the part you need. If you are based in Australia, you can contact the Australian service department at [e-mail]. If you are based elsewhere just do a quick search on Google for "Grundfos (your country)" and then go to the support section of the menu at the top and click on "contact service". All the best, Aaron

[@17th_Street_Preacher]

@@grundfos yes I’m in Australia, have had no response from that email. What would cause it to leak out of the pin hole in the hex drain bolt (cast iron head)? Is that a mechanical seal failure or too much pressure? Have pulled pump apart, lots of sediment built up around the outlet etc. I can see a seal kit on eBay for $90 but if it’s just an O ring..thanks!

[@grundfos]

Hi zenLife, it is unusual that our service department hasn't been in contact with you. Please send a contact email and phone number to [e-mail] and I will pass it onto the service department and get them to contact you directly.
Regards
Aaron

[@msambasivarao143]

This pump is available in India ?

[@grundfos]

Hi M Samba Siva Roa, Thank you for your interest in Grundfos. You can find all our relevant information and details in our local country web page spr.ly/6053MLFUx, and you are welcome to contact our local company directly - spr.ly/6055MLFUL. Thank you. Best regards, Gopi

[@lawrencemasina3017]

How to start grundfos

[@grundfos]

Hi Lawrence, can you elaborate a bit on your question? Thanks! Kind regards, Sabrina.

[@lawrencemasina3017]

@@grundfos I bought a pump written GRUNDFOS and they didn't install it for me ,I install it my self , so when I put power It can't start to pressure the water from the tank

[@grundfos]

Hi again, I would advise you to contact a trained installer where you bought the pump who can diagnose the problem and make sure the pump is installed correctly! :) This video is aimed only at skilled, trained personnel.
May I ask where you are located?
Kind regards, Sofie

[@Hi_Doctor_Nick]

​@@lawrencemasina3017 hi Lawrence. I find it helps to bleed the air out of a dry pump. On ours there is a socket near the outlet. I switch the pump on and slightly loosen the screw. You might be able to hear a hissing as the air escapes. If you see water coming by the screw tighten it back up and you should be good 👍
Also might be worth seeing if the motor is spinning in the correct direction. Look at the fan on top.