Question about Tsurumi Pump 2x25 Blk Pond Flex Hose

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Service manual /equivalent oil requirement


I would like to ask if you have any service manual of tsurumi UR series pump for waste water treatment and sewage.

I would like to ask if the motor drive is lubricated with insulating oil about 3/4 volume of the motor casing?

Please help me with this...

Thank you very much and hoping for your most favorable response.


Handel E. Francisco

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I do believe that this motor running without any oil, i am not to familliar with this particular model, all the Tsurumi model that i know run with air ''magnet'' insulate motor,

Please check with our head office

Hope it help you


Everywhere Always

Posted on Jul 29, 2010


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Posted on Jan 02, 2017


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I have a big onan generator for our Waste Water Treatment plant,it runs fine then ups and quits I think its the coil shut off on the carbarator were do I get a new coil or how do I test it?

always the first place to check is the sump oil level or the coolant level or those sensors
both have sensors that will stop the engine
you get a new coil ( if required ) from the service agent and to test it you will need an ohm meter and the figures as to what the resistance reading should,be

Apr 01, 2017 | Water Electrical Supplies

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Tsurumi pump 40pu2.15s my pump only humming and stop pumping water. what is the cause?

Most likely cause is a blocked impeller. Disconnect from power supply, remove pump from sump, take off pump base to expose impeller and check for freedom of rotation. If all appears OK and pump still just hums it could be a blown capacitor - unless you really know what you are doing I suggest you employ an experienced expert to proceed further. Where are you located?
Mike Goody

Jul 19, 2011 | Tsurumi Pump Plumbing

1 Answer

May tsurumi submersible pump is i need to oil on the plug of the of the pump? Is it ok if increase the discharge diameter? What will be effect of it? Hope u could enligthen me on this...

This is a single phase induction motor. You mentioned it is overheating. You did not mention whether or not you had easily turned the pump by hand. Pumps overheat for several reasons but these are the top 4:
1. The head pressure is too high as in the pump is being used to pump water higher than the head level of the pump. (Lift distance to high)
2. Low utility or generator voltage. Lower than the pump rated input power requirements.
3. Bearing Friction or motor / bearing mis-alignment ( 3. Pump is sitting in debris while pumping and the pump inlet is being blocked by debris. Also... if it sat in clay and the clay dried inside the pump it can restrict water passages to the point that the pump just can not pump enough water to stay cool.

Does it overheat when pumping at 15 feet or less? I note that this is actually a 1/2 Hp pump. The max LIFT distance for most 1/2 Hp Pumps is 23 feet or less using a 1 1/2 in discharge. The lift will be even less with a 2 inch discharge outlet. As for oiling the pump... Most submersibles always have oil above the impeller and it usually does NOT leak out unless the seal between the impeller and the motor stator / aramture has failed letting water into the winding. That plug you mentioned is for checking to see if water is in the winding area. If you pull the plug and get water the seal is bad. Hopefully you can save the winding.

You asked what the effect would be if you went to a larger discharge diameter. This will give you more volume but less head / lift distance.

Thanks for choosing FixYa.

Apr 06, 2011 | Tsurumi Pump s Submersible Water Pump ...

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How much hydralic does 2"

What do you mean by Hydralic?

there is no hydraulic oil in it,

and its a Honda gas engine,

Jan 03, 2011 | Tsurumi Pump Tsurumi Diaphragm Pump 120cc...

1 Answer

Is the internal motor in a tsurumi 50pu2-15s

No it should be completely dry and clean, check the date of purchase, you will need to replace the mechanical seal and clean the motor,its not suppose to happen,

ask your tsurumi distributor if you want to repair it or ask about the warranty, i am assuming that the pump stop working so thats why you open it and ask about it here, make sure you dont see any burn (black) wire on the stator, if you see any burn on the stator its a bad news,

If there is no burn part,
If you have just a few dip of oil in the motor try to remove the oil as much as you can with (electric part (brake) cleaner) or rag and replace the mechanical seal,

If there is a lot of oil all over in the motor, if he is not already damage (Burn),you can try to wash the motor with clean or light soapy water and then let him dry for a few days or in a oven to make sure all the water is evaporate, then replace the seal and cross your finger,we can never be sure that this procedure will work due to this small electric motor, and you never know how long the motor might have run with liquid in it, but i say its 51% succesfull chance to work, if you have to pay someone to do that it might be worthed to buy a new unit.

Hope i help you,

Tsurumi Man

Everywhere, Always


May 22, 2010 | Tsurumi Pump s Submersible Trash Pump -...

1 Answer

No problem just looking for a parts book on a tsurumi lb3-750 sub

Here is a breakdown of the pump. The contact number is at the bottom right of the page.


Hopefully this will help you locate your parts.

Thanks for using FixYa,


May 04, 2010 | Tsurumi Pump s Submersible Water Pump ...

1 Answer

Tsurumi submersible pump with a bad bearing.

Mostly likely no.. These pumps have a sealed bearing that can not be serviced.

Apr 17, 2010 | Tsurumi Pump s Submersible Trash Pump -...

1 Answer

Vancs pump turns off and on.

sounds like something is maybe stuck in the pump causing this problem.

Apr 01, 2010 | Tsurumi Pump s Submersible Trash Pump -...

1 Answer

Tsurumi submersible vancs series pond pump has

To get a new owner manual send them an email and they will email or send you one,

Is the pump was working fine for a long time before that happen?
if yes
There is a motor problem,
You can check your pump power cable try to find any damage or hole in it.
If the cable fine
And if the impeller and wheel still turn before triping the breaker It would be a good thing to check the amperage with a special electronic tool to see how much amperage the pump take,
if you are good in manipulating tool we can send you the breakdown or i can support you to open it and to check the motor trying to find any burn part in it. That way we will know right away if its worth to fix it.

let me know

Jun 09, 2009 | Tsurumi Pump s Submersible Trash Pump -...

1 Answer

Pump makes loud humming sound, does not pump, eventually overheats and trips breaker. Tsurumi Vancs 50pn2.4s-61

Pull out the oil inspection plug and check oil. It is filled with mineral oil and should appear clear. If milky it would indicate faulty seals. The tsurumis are overheating often in skimmer box applications where the top of the pump is not submersed when the skimmer intake screen gets plugged. Tsurumi no longer accepts pumps for repair at their US facility. If you contact them they may refer you to a recommended rebuilder. It is a shame as we have sold hundreds of these the last 4 years and have suddenly had a rash of this similiar complaint in the last few months with little success in repairing. We have since dropped this line and replaced with Atlantic water Garden Pumps in similiar sizes.

Mar 22, 2009 | Garden

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