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Teral LPWE-GS Instruction Manual

Coolant pump
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Coolant　Pump
Instruction Manual
Coolant Pump
Model : LVS
Model : LPWE-GS
Original Instructions

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Summary of Contents for Teral LPWE-GS

  • Page 1 Coolant　Pump Instruction Manual Coolant Pump Model : LVS Model : LPWE-GS Original Instructions...

  • Page 2: Limited Warranties

    (6) Failures and breakage caused by use or storage outside the specification range. 4. TERAL INC. shall not be liable for the 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 properly operate, maintain and inspect the pump. Incorrect operation of this product may lead to an unexpected accident. Please use the product correctly according to this instruction manual. 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 1.1 Types and meanings of warning terms and graphic symbols This instruction manual divides precautions into the following four categories according to the level of hazards (or the severity of the accident). In addition, prohibited or mandatory actions as well as cautions are indicated with a graphic symbol.
  • Page 5 In the event of an alarm or abnormal condition that cannot be resolved, immediately stop the operation, Do not run the pump with tools or other objects turn off the power, and then contact TERAL or its placed on the unit. service provider.
  • Page 6 Caution Check that the delivered items are exactly what you Do not place any combustibles around the product. ordered. Otherwise, it may lead to a fire. The use of a wrong product may cause an injury or failure. Do not place any obstacles around the product that Do not touch the impeller, tie bolt, or strainer of the may hinder ventilation.

  • Page 7: Location Of Warning Labels And Caution Labels

    1.3 Location of warning labels and caution labels The figure shows the locations of warning labels and caution labels. If these labels become dirty and illegible or if they are peeled off, replace them with a new one. Caution Warning Observe all the instructions in the warnings and cautions affixed to the machine as well as those described in this instruction manual.

  • Page 8: Configuration And Overview Of The Pump

    2. Configuration and overview of the pump This chapter describes the standard specifications of the pump. For details, refer to the delivery specifications such as the dimensional outline drawing and the internal structure drawing. If you have purchased a customized product, some information in this chapter may not be applicable to your unit.

  • Page 9: Standard Specifications

    Munsell N1.5 Note 1 Note that the product cannot be used for water. If the liquid contains hard foreign matters or large amount of foreign matters (cutting chips), contact TERAL. 2.4 Information indicated on the nameplate The specifications of the pump are indicated on the nameplate. Upon receiving the pump, check the nameplate to verify that the delivered product is exactly what you ordered.

  • Page 10: Specification Table

    Outboard bearing type rated current of the motor. The electric current indicated on the pump Serial number nameplate is based on actual use. TERAL recommends using this value as the setup current value of its protective device. 2.5 Specification table ・LPWE-GS type...

  • Page 11: Dimensional Outline Drawing And Dimensions Table

    2.6 Dimensional outline drawing and dimensions table (1) Dimensional outline drawing Typical models are shown in figure. The shapes may be slightly different depending on the model and specifications. The specifications may change due to design changes or for other reasons, so please request the delivery specifications when planning your pumping work.

  • Page 12: Internal Structure Drawing

    2.7 Internal structure drawing • LPWE-GS (LPWE401A-0.75-GS、LPWE401B-0.75-GS) Note1) The materials in the table above are equivalents. Note2) Structure and other details are subject to change without notice.
  • Page 13 • LPWE-GS (LPWE402A-1.5-GS、LPWE402B-1.5-GS) Note1) The materials in the table above are equivalents. Note2) Structure and other details are subject to change without notice.
  • Page 14 • LPWE-GS (LPWE403A-2.2-GS、LPWE404A-3.0-GS、LPWE404B-3.0-GS) Note1) The materials in the table above are equivalents. Note2) Structure and other details are subject to change without notice.

  • Page 15: Transportation, Conveyance, Storage And Installation

    3. Transportation, conveyance, storage and installation 3.1 Precautions for transporting, moving and storing the pump (1) Do not unpack the container unnecessarily. If you unpack the container unnecessarily, securely pack again in such a manner that the product body does not jump out of it and fall down during transportation, conveyance or storage. (2) When you transport, move, or store the pump, ensure that the pump is located in a well-ventilated place with minimum exposure to dust and moisture in an environment at an ambient temperature of 0 to 40°C, 85% or less humidity.

  • Page 16: Precautions For Installation

    3.3 Precautions for installation Warning Before rotating the pump shaft by hand to check it, be sure to turn off the main power. An unexpected start of the pump may cause an accident. (1) Install the product in a well-ventilated place with minimum exposure to dust and moisture. (Refer to the Installation location in “2.3.
  • Page 17 Note Securely fix the pump in place with the bolts. Otherwise, it may lead to abnormal vibration or other problems. (13) To lift the pump, pass a rope or the like through the eyebolt of the motor. ※ ・Size of eyebolt：M8 Mounting ...

  • Page 18: Precautions For Piping Work

    (20) Do not put a cover or filter over the motor. Otherwise, the temperature may increase inside the motor, thus leading to an unexpected failure. (21) Rotate the main shaft by hand to check smooth rotation. To rotate the shaft by hand, remove the screws of a strainer and turn the impeller nut with a T-shaped wrench.

  • Page 19: Precautions For Wiring Work

    3.5 Precautions for wiring work Danger Use high-quality wiring equipment and devices, and carry out wiring work safely and securely according to the technical standards for electrical facilities, as well as the indoor wiring regulations. Only qualified personnel such as licensed electrical engineers are allowed to carry out electrical wiring work.
  • Page 20 Warning Connecting a ground wire to a gas pipe or water pipe is illegal and extremely dangerous. (5) To prevent the terminal block of the motor from being pulled, fasten the power cable to the terminal box with the cable lock. Warning Do not change the orientation of the terminal box.

  • Page 21: Operation

    4. Operation 4.1 Check items before test operation 4.1.1 Check items related to the electrical system (1) Check that the equipment is correctly wired. (2) Check that the terminals are securely connected. (3) Check that the equipment is securely grounded. (4) Check that the setup value of the overload protection device is consistent with the rated current indicated on the pump nameplate.

  • Page 22: Running The Pump (Test Operation)

    4.2 Running the pump (test operation) Warning Be sure to attach the cover of the terminal box of the motor. Otherwise, it may lead to an electric shock. Warning Do not operate the pump if any abnormal condition is observed or if there is anything wrong with the parts, components, and others during the check before test operation.
  • Page 23 (4) Adjust the sluice valve on the discharge side so that the specified pressure is achieved. Although running the pump with the sluice valve shut does not cause the overload of the motor, long hours of continuous operation in the condition increase the liquid temperature in the pump. Therefore, allow a small amount of liquid to flow (at least 20L/min);...
  • Page 24 [For reference only] Relation between the total amplitude (a) and the vibration velocity (V) V×6×10 π×n a: Total amplitude (μm) V: Vibration velocity (mm/s) n: Equipment rotation speed (min 600 800 1000 1500 2000 3000 4000 6000 8000 Rotation speed (min Standard vibration value at the bearing section (12) Do not allow a large amount of cutting powder from entering the pump.

  • Page 25: Maintenance And Inspection

    Caution For overhaul, replacement of parts, or repairs, ask the vendor or the service center specified by TERAL. Incorrect work may cause a failure or accident. 5.1 Precautions for maintenance and inspection (1) Observe the following points, in particular, during daily inspection.

  • Page 26: Daily Inspection

    ⑤ Since an oil seal and a deflector made of rubber are used, high-frequency sound (rubber squeak) may occasionally be generated, but it is not a pump failure. You can continue to use the pump with the same good quality. ⑥...
  • Page 27 Maintenance checklist Inspection interval Timing of replacing Inspection Criterion consumables Inspection point Inspection item Half- method (Reference page) Daily Monthly Yearly yearly (as a guide)* Temperature Measure Between 0 and 40°C (2-2)  Check against the Humidity Measure Less than 85% RH (2-2) ...

  • Page 28: Troubleshooting

    Troubleshooting The following table lists causes of failures and their actions. In the event of a failure, however, you should carefully investigate the problem and ask the vendor to carry out any actions that are not easy to take. Problem Cause (Reference page) Action (Reference page) Done by *...
  • Page 29 * The persons who take the Action are specified here (Done by) only as a guide because the extent of actions that can be taken is different depending on the user. If you have anything unclear—even about the problems whose actions are to be done by User, ask the vendor or contact TERAL.

  • Page 30: After-Sales Service

    (Refer to Section “6. Troubleshooting [page 6-1].”) For disassembly, inspection, or repair, ask the vendor from which you purchased the product or ask TERAL. (Refer to the end of this document.) Never repair the pump by yourself because it may lead to danger.

  • Page 31: Disposal

    Disposal 8.1 Precautions for disposal Before detaching the pump from the system for disposal or replacement, be sure to turn off the main power. Warning Before detaching the pump, be sure to turn off the main power. Otherwise, the pump may suddenly start up in automatic mode or on other occasions, thus leading to great danger.
  • Page 32 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 2020 08 E‑IMN‑00526‑000‑T...

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