Comet Industrial AXD Series Pump Repair & Maintenance

This video provides step-by-step instructions on repairing or providing maintenance of Comet's AXD high pressure plunger pump series.
AXD Series Pump Models: 2427, 2524, 2527, 3020, 3025, 3522, & 3525
Steps Include:
- Replacing the Unloader Valve
- Replacing the Delivery/Suction Valves
- Replacing the Ceramic Pumping Pistons
For more information on Comet industrial high pressure plunger pumps, visit www.cometpump.com.
Comet high pressure plunger pumps is distributed by Valley Industries in North America. For more information on Valley Industries, visit www.valleyind.com.

[@Hardcorediver44]

Thank you for posting. I took my comet AXD pump valve covers off and found two of the lower pressure valves had large pieces of rust debris stuck in them. I was able to clear them and clean them in toilet bowl cleaner and put it back together and now it works fine.

[@barlow2976]

Thanks, very useful. When I see a company invest time and money producing videos like this it makes sense to buy one of their pumps- which I have! Nice to know there are service kits out there, unlike the mystery Chinese pumps.

[@CometPumps]

Thanks for the kind words. We know these videos are important for our customers. Aim to please!

[@tommyschulte2577]

Oh. Ok. I have a problem with my unloader valve. I didn't relize there was another part down there. I see it now. I'll have to find a tool to get that out. This was a vary helpful video to me. Thanks.

[@johntan8065]

Very informative video. Inquiring for parts to fix similar problems. Pump oil is foamy and milky in appearance. Thank you

[@brianhopkins6657]

Great video.

[@bellsback]

Thank you very much for making this how to fix video ! I wish every product I bought came with great videos like this. Does Comet still make any replacement parts for AXD 2424 - 6501 004000 ? cant find anything on your website

[@RaGnoooory]

is the valves side separated from the pump side ? I won't get any oil spill if I only work on this side yeah ?

[@bozman1990]

Is it ok to use a 30 weight non detergent oil in a comet 5335?

[@rustedexplorer9257]

Which seals/ part of the video is for stoping the oil and water from mixing? My pressure is good just milky oil

[@mohdalidulaluae1347]

Good

[@rufinacruzsantiago3162]

Que tal buenas noches tengo una hidro lavadora igual que esta pero no tiene presión ya le cambié todo los cellos y empaques y nada solo me falta cambiar el balero interno podrá asesorarme??

[@elomeli211]

On axd 1617 I see a hex plug screw beside the outlet port and directly connected to the unloader valve. I've pulled up diagrams of the pump but can not find a answer. Can that plug be removed and replaced with a threaded barb to go to a buffer tank?

[@CometPumps]

Hello Enrique. It is not recommend to remove that plug. Pressure to your hose will be lost. Are you trying to get to the external bypass? Let us know. We can give us a call at 800-864-1649 . Or provide us your email address and we can reach out directly that way.

[@dmope22]

Thanks for this video. i am trying to repair a BXD 2530 pump. it is leaking. have you worked on one of those. also where did you order the parts from? thanks

[@CometPumps]

Thanks for the reply. We suggest to connect with our customer support to help establish what you will need and where you can find replacement parts. Can contact via email ([e-mail]) or phone [phone])

[@grabielandresgutierrezvill7242]

En Perú dónde puedo adquirir estos repuestos

[@carwashnoord6755]

I need plungers for AXD2016. Where can I order these

[@abieseshelston3291]

Hola buenas noches en donde puedo conseguir esos sellos

[@nefastoize]

Hola mi bomba no tiene precio ni genera caudal los pistones se mueven pero no manda agua que puede ser?

[@chrisgarvey1346]

What grease are you using, and how to you remove/replace the seals around the actual pistons?

[@CometPumps]

Hello Chris. Our Tech likes to use general purpose grease. As far as the seals around the pistons, are you referring to the oil seals? If so, you have to drain the oil and then push the pistons out and then pull the oil seals and put the new ones in. Let me know if there is any need for clarification or additional questions!

[@chrisgarvey1346]

Thank you for the fast reply. Yes, the oil seals. I understand draining the oil but am not sure about pushing the pistons out. Does the pump body have to come apart (the 4 hex screws joining the 2 halves) to push them out?

[@CometPumps]

@@chrisgarvey1346 Hello. Sorry for the delayed response. Yes you have to take the 2 parts apart and then the pistons should push out

[@bennyhaha43]

@@CometPumps How do you get the oil seals out? They seem fused to the body? They certainly are not coming out in one piece. Any suggestions?

[@CometPumps]

@@bennyhaha43 Please call into our service department and a tech can help you with support on the removal of oil seals. Our # is 800-864-1649

[@MrNinjagofan]

Hi, what would be the most probable cause for a milky oil foam coming out of the Oil Cap with Vent for an AXD 2325? Thanks

[@CometPumps]

Hello. Milky oil is caused by water getting into the crank case. This would mean your water and oil seals are bad and will need to be replaced.

[@MrNinjagofan]

@@CometPumps thanks! What repair kit should I buy then?

[@CometPumps]

@@MrNinjagofan cometpump.com/wp-content/uploads/2019/06/AXD.pdf Here is a link to where you can see a breakdown of the axd pumps. Please check the breakdown for the water and oil seal kit and you’ll find the numbers you need. Kits may vary with your model of pump so please check and verify your pump model matches up.

[@HiramEsquivel]

Hi I have a problem with my pump, the detail is with the oil is throwing it where the plug is.

[@CometPumps]

Hello. Thanks for the question. I spoke with our technical team and they believe that your unloader is causing back pressure in the pump. They recommended cleaning out the unloader as there may be debris stuck in there. If that doesn't help, please give our team a call at 952-707-1894.

[@CometPumps]

One more thing that could be causing this is the amount of oil that is in the pump. In the AXD series the pump only requires 6 ounces of oil to properly coat the moving parts in the crankcase.

[@rufinacruzsantiago3162]

Que tal buenas noches tengo una axd 30 20 pero no tiene precion ya le cambié la mayor parte de piezas pero no doy con el detalle

[@user-by8xx3jv2v]

What kind of grease are you using 0:38

[@dperfetti1]

I'm looking for information and parts for my pump, It's a GXD 2527. I looked on the Comet website and couldn't find any information. Can anyone help me out?

[@CometPumps]

Hello Doug! Thanks for your inquiry. You can find the pump breakdown for the GXD 2527 at the link below. If you have additional questions, feel free to reach out to our customer support. Phone: [phone] Email: [e-mail] www.cometpump.com/wp-content/uploads/2021/08/GXD-2527.pdf

[@zainalkipol2036]

Axd pump. i always service this pump head. KA 3000-kA 3200

[@RandyBarbee]

Does anyone know what that extractor tool is called?

[@LinvalLinvalhoward-jj2qs]

Wash seal

[@kennethhalleck4279]

Where can i get this extractor tool?

[@santanatruckingco]

I need repair kit number for ZWD-K 4042. Thanks

[@CometPumps]

Hello. Click the link below. There will be a section of repair kits for the ZWD-K series. www.cometpump.com/product/zwd-k-1/

[@Muchsinmohammad]

Provided extractor major name?

[@CometPumps]

Hello Muchsin. Thanks for the question, but not sure what you are asking. Are you looking for the part # that is associated with the extractor? If so, that will be part # 0899.0007.00. If there is more questions, feel free to reach out to our team at email: [e-mail]!

[@zaqiinggirmaulana9142]

I need repair MTP KA 5000 Please HELP ME!

[@zaqiinggirmaulana9142]

Diagram pump please

[@CometPumps]

Hello Zaqi. Unfortunately that product line is something we don't offer in North America. I recommend reaching out to our Italian counterpart Comet Spa. Their website: www.comet-spa.com and email: [e-mail]. I wish we could help you out more on this subject!

[@shivugadagin1813]

Dear I want seal 1set

[@CometPumps]

Hello Shivu. Depending on your location, you can find the seal kit (among other Comet products) via our dealer locator. Below is a link! www.cometpump.com/find-a-dealer/ If you still need help, give us a call at 800-708-1894 or reach out via email [e-mail]

[@tainorosario8902]

That music make life not worth living.

[@LinvalLinvalhoward-jj2qs]

Power wash

[@muhammadsaleem24]

Dove abiti

[@josedelarosa5730]

Hello, excellent videos. I congratulate you for sharing them with us. The truth is that we learn a lot from them. Personally, I have benefited a lot and I would like if you could guide me where I can buy the parts to do the maintenance of my pump because I plaster to throw water. My pump is a GP. It is 44EZ2542. I would appreciate it very