Tsurumi Pump HS3.75S - User Manual

Other manuals for Tsurumi Pump HS3.75S

Starting And Operating Instruction58 pages

Starting And Operating Instructions44 pages

Questions and Answers

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Lisa OrtegaAug 4, 2025
Why does my Tsurumi Pump HS3.75S start but stop?
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  Joshua DavisAug 4, 2025
  If your Tsurumi Pump Water Pump starts but then stops, several factors could be at play. The motor windings or cable might be damaged, so check them. An impeller could be blocked or choked. Also, wrong voltage or frequency could be the reason. Check the voltage under load if it seems too low. If a generating set provides power, the frequency may be inexact. Excessive viscosity or density of the liquid could also be the reason. Finally, there might be a wrong setting or thermal overload at the power source.
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Christina CookAug 8, 2025
How to troubleshoot a Tsurumi Pump HS3.75S Water Pump that fails to start?
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  Marc WilliamsonAug 9, 2025
  If your Tsurumi Pump Water Pump fails to start, there are a few things to check. If a level control exists, ensure it's calling for the pump to start. Use a multimeter, portable lamp, or electric tool to verify power availability. Remove the pump casing and confirm that the impeller rotates freely and without noise. At the pump cable's end, check the insulation value of the earth lead (it should be over 20 M Ohm) and the winding's continuity.
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Courtney ThompsonAug 13, 2025
What to do if Tsurumi Pump Water Pump head and flow are lower than expected?
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  Ashley AllisonAug 13, 2025
  If your Tsurumi Pump Water Pump's head and flow are lower than originally, several issues could be responsible. There might be a restriction in the piping or excessive resistance in the discharge conduit (perhaps it's too high, too long, too small, or dirty inside). The impeller could be worn, partially choked, or severely narrowed by hard deposits. The strainer or inlet might be blocked, or the pump could be drawing air. Also, the liquid might be partly volatile or contain a high level of gas in solution.
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Phillip CarterAug 16, 2025
Why does my Tsurumi Pump Water Pump generate noise or vibration?
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  Leslie RobinsonAug 16, 2025
  If your Tsurumi Pump Water Pump generates unusual noise or vibration, it could be due to a few reasons. The impeller might be severely damaged, or a bearing could be failing. Repair it at once. Also, check that the pump isn't lying on its side and drawing air. This could also indicate a high wear rate.
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Amber DavisAug 21, 2025
What to do if my Tsurumi Pump HS3.75S Water Pump starts but then stops?
- R
  Randy WrightAug 21, 2025
  If your Tsurumi Pump Water Pump starts but then stops, it could be due to several reasons. The motor windings or cable might be damaged. The impeller could be blocked or choked. There might be an issue with the voltage or frequency, such as the voltage being too low, especially under load, or an inexact frequency if using a generating set. Additionally, the liquid might have excessive viscosity or density, or there could be a wrong setting or thermal overload at the power source. Do not open the motor; instead, check the items mentioned above.
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Anthony McculloughAug 25, 2025
Why is the head and flow of my Tsurumi Pump HS3.75S lower than originally?
- Z
  zthomasAug 26, 2025
  If your Tsurumi Pump Water Pump's head and flow are lower than originally, it could be due to a restriction in the piping or resistance in the discharge conduit because it is too high, too long, too small, or too dirty inside. Alternatively, the impeller might be worn, partially choked, or severely narrowed by hard deposits. Another possibility is that the strainer or inlet is blocked. The pump could also be drawing air, or the liquid is partly volatile or contains a high level of gas in solution.
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Erik HunterAug 30, 2025
What to do if Tsurumi Pump HS3.75S Water Pump fails to start?
- T
  Travis DoyleAug 30, 2025
  If your Tsurumi Pump Water Pump fails to start, and if the pump is new or has been repaired and tested, check whether the level control is calling for the pump to start. Use a multimeter, portable lamp, or electric tool to check if power is available. Remove the pump casing and ensure the impeller can rotate freely and without noise. At the pump cable's end (never open the motor), check the insulation value of the earth lead (over 20 M Ohm) and the continuity of the winding. If the pump has been used satisfactorily before, pay special attention to the impeller, checking for stones or debris.