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Teral PVT Instruction Manual

Submersible sewage pump
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Instruction Manual
Submersible Sewage Pump
Model: PL / SSU / PV / SVC / BO /
KO / SCU
Warning
Do not carry out operation, inspection or maintenance of the pump until you read this manual and
understand the content.
Keep this manual carefully at hand so that it can be consulted at anytime when operating, inspecting or
maintaining the pump.
For contractors who carry out equipment work:
Please be sure to deliver this manual to the customer who will operate, inspect or maintain the pump.
Teral Inc.

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Summary of Contents for Teral PVT

  • Page 1 Keep this manual carefully at hand so that it can be consulted at anytime when operating, inspecting or maintaining the pump. For contractors who carry out equipment work: Please be sure to deliver this manual to the customer who will operate, inspect or maintain the pump. Teral Inc.

  • Page 2: Limited Warranties

    (5) Failures and breakage when parts other than those designated by Teral Inc. are used Teral Inc. shall not be liable for any damage caused by incorrect or reckless use of the pump. Cost and expenses incurred for sending engineer(s) in such a case shall be borne by the user.

  • Page 3: Table Of Contents

    Purpose of this manual The purpose of this manual is to provide the user with detailed information necessary to operate, maintain and inspect the pump properly. This manual contains the following information and is intended for persons experienced in the operation of pumps, or for those who have been trained by such experienced operators.

  • Page 4: Safety Precautions

    1. Safety precautions Safety indications and their meanings This instruction manual divides precautions into the following four categories according to the level of hazards (or the severity of the accident). Be sure to understand the meanings of the following terms and comply with the content (instructions) of the instruction manual.

  • Page 5: Configuration And Overview Of The Pump

    2. Configuration and overview of the pump Part names [Models PLA, PLT, SSUA, and SSUT] (The float switch is not fitted to the models PL and SSU.) Float switch Float switch holder Float mounting bar Casing Motor Cabtyre cable Strainer (The models PLA and PLT have a strainer of a different shape.) Air vent hole...

  • Page 6: Pump Specifications

    Pump specifications If you have purchased our standard product, refer to the “Standard specifications” table. If you have also purchased a custom-made product with special specifications, refer to the specifications including the external dimensions drawing. Caution Do not use this pump under any conditions other than those provided in the specifications.

  • Page 7: Installation

    3. Installation Before using the pump When you receive the pump, check the following points first. If there are any problems, contact the vendor from which you purchased the product. Caution Make sure that the delivered package is placed right-side up before unpacking.

  • Page 8: Precautions For Piping Work

    Warning • Do not lift or lower the pump using the cabtyre cable. Otherwise, it may damage the cable and lead to an electric shock. • Before lifting the pump, refer to the catalog, the external dimensions drawing, and other documents to check the weight of the pump. Do not lift the unit if the weight exceeds the rated load of the lifting equipment/device to be used.
  • Page 9 When connecting the connection terminals of the cabtyre cable to a power supply, be sure to check the rotation direction. To reverse the rotation direction, swap two of the three wires. Reverse rotation from incorrect wiring may generate abnormal noise and decrease the pump discharge rate, thus leading to failures.

  • Page 10: Preparation For Operation

    4. Preparation for operation Check items before test operation 4.1.1. Check items related to the electrical system (1) Check that the pump is correctly wired. (2) Check that the terminals are securely connected. (3) Check that the pump is securely grounded. (4) Check that the setup value of the overload protection device is consistent with the rated current value of the pump.
  • Page 11 casing is completely submerged in water. Warning Do not allow air to be sucked into the pump during the operation. Otherwise, it may cause the motor to burn out and/or lead to an electric shock. You can adjust the start level by moving up or down the float switch holder. If the supplied float mounting bar is too short, replace it with a longer vinyl chloride pipe (13A, OD: φ18 for water service).

  • Page 12: Test Operation

    Test operation Warning If there is a person in a place where water is stored, such as a bath, a pool, or a pond, never run any submerged pumps. Otherwise, it may lead to an electric shock. (1) Referring to “3.4. Precautions for wiring work,” be sure to check the rotation direction of the motor after installing the pump in water.
  • Page 13 Normal operation Abnormal condition Automatic alternate Pump failure operation Abnormal increase in water Water level A (start level for abnormal condition) Pump #2 Pump #2 fails Abnormal condition Pump #1 fails starts Pump #1 Pump #1 Water level D (Start level) Pump #2 starts Water level B Pump #1 starts...

  • Page 14: Maintenance And Inspection

    5. Maintenance and inspection Precautions for maintenance and inspection When carrying out a daily inspection, carefully observe the following points. (1) Because a submersible motor is used, periodically check the insulation resistance. If the insulation has degraded rapidly, inspect the motor. Warning Do not run the pump if the insulation resistance is not higher than 1MΩ.

  • Page 15: Maintenance Check List

    · Clean the strainer. Lower performance · Because it is necessary to replace the impeller, Wear of the impeller contact Teral Inc. or the service company. Defective or improper piping · Repair or correct the piping appropriately. · Correctly set the stop level.

  • Page 16: Detachable Device (Option)

    7. Detachable device (option) Names of components 7.1.1. C-type detachable device Discharge pipe ４ Sliding guide ７ Companion flange Pipe supporter ８ Anchor bolt ６ Balance chain Hanging chain Guide pipe ２ １ Note ３ The guide pipe is not a standard accessory. If the customer provides this on its own, refer ５...

  • Page 17: Sec Type Detachable Device

    Installation of the detachable device Caution Ensure to install the detachable device so that it can lift and lower the pump properly. If the guide pipe is not installed precisely vertically, the detachable device may not be able to fully lift or lower the pump. 7.2.1.

  • Page 18: Installation Of The Pump

    Installation of the pump (1) Adjust the hanging position of the balance chain so that the hoisted pump is not tilted. (2) Hold the hanging chain with a chain block or other tools, and slowly lower the sliding guide along the guide pipe.
  • Page 20 Head Office 230, Moriwake, Miyuki-cho, Fukuyama-city, Hiroshima, 720-0003, Japan Tel.+81-84-955-1111 Fax.+81-84-955-5777 www.teral.net 2016 10 E‑IMN‑00012‑000‑D...

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