Question about Tsurumi Pump s Submersible Water Pump 3810 GPH 12 HP 2in Model LB48

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Can i use Tsurumi 50pmu 2.15 motor on dry land

Can the motor be used on dry land for other purpose without submerge in the water

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Posted on Jan 02, 2017

  • 18 Answers

SOURCE: 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

,

Posted on Jul 29, 2010

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testing on dry land without the engine in the water is not very smart . they need water to cool things

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Review your question and resubmit. What type of tank? What is the purpose of your tank? Where is it locate? Is it submerged? Check your spelling. Give us a more thorough description of your problem.

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May tsurumi submersible pump is overheating.do 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.
Kelly

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

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This is the second time I have replaced the pump with no good results. This pump drains a pedicure chair. Some times it will drain sometimes not.Motor runs, with water going to inlet,but no flow out.really...


The #4E must be run submerged. The #3E may be used submerged or in-line. IMPORTANT: When

used in-line, the #3E must be installed so that the pump head (volute) is flooded before starting. That is,
the inlet of the pump must be below the level of the surface of the liquid being pumped.

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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 -...

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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.

http://www.uco.no/Global/Bruksanvisninger/Pumper/synkepump_642422-232_br.anv.pdf

Website http://www.Tsurumi-Europe.com

Hopefully this will help you locate your parts.

Thanks for using FixYa,

Kelly

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

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Vancs pump turns off and on.


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

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Handycam submerge for 24 hours in water?was it totally damaged?


My advice is as follows:
Ii the handycam was submerged without the battery on it the electronics may still be fine. you need to take it to the repairman who will open up all the circuit boards and dry them.
If there was a tape i the camera , the tape is damaged and cannot be used again.
The camera mechanism may also be damaged by the water through corrosion , so its absolutely important that you take it to the repairmen for drying as soon as possible.

However if the handycam was submerged with the battery on, then the electronic circuit boards are most likely damaged.

in this case you may weigh the costs of having the circuit boards replaced against buying a new camcorder altogether.

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2 Answers

Pump trips GFI when submerged


Check your power cable for any hole and damage, that might be the problem

if not
remove the 2 screw where the cable is connect on the pump, gently pull off the ruber from the cord and check if your 3 wire are wet ? and if any water can come out of the cable hole?
if yes you have to take most of the pump appart to make the stator and rotor get dry and also check for any black part on the stator, to make sure it not burn if you cant find any black spot on the part let it dry for a week and spray some air on the stator everyday and your problem will be fix,
At our big factory we use special oven to dry the part quicker

If you have no water that came out from the inside of the pump it has to be the power cable or your breaker the reason why the pump work fine when only the base is submerge is because the pump have less restriction (Water to push) so the engine work is very light compare when she is submerge and have to push so much water alll the way throught the hose.

I can help you if you need more info,

Aug 24, 2009 | Tsurumi Pump s Submersible Trash Pump -...

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Service manual /equivalent oil requirement


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

www.tsurumiamerica.com
www.tsurumi-europe.com


Hope it help you


TsurumiMan

Everywhere Always

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