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Teral LS2 Instruction Manual

Volute pump
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Instruction Manual
Volute Pump
Model: LS2 / LS
LS2-e / LS-e
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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  • Page 1 Instruction Manual Volute Pump Model: LS2 / LS LS2-e / LS-e 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.

  • 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 Before using the unit, thoroughly read this “Safety precautions” to properly use the product. Information described below is vital to safe and proper use of the unit and prevention of hazard and/or damage. Types and meanings of safety signs 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).
  • Page 5 For overhaul, replacement of parts, or repairs, Do not put your fingers or foreign objects into any contact Teral or the service center specified by openings or rotating part of the motor during Teral. operation.
  • Page 6 Do not run the pump with tools or other objects cannot be resolved, immediately stop the placed on the unit. operation, turn off the power, and then contact Teral Otherwise, it may lead to an injury or damage. or its service provider.

  • Page 7: Location Of Warning Labels And Caution Labels

    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. Warning Caution Observe all 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

    L S 2 ① ② ③ ④ ⑤ ① Model : LS2 (pole : 2P), LS (pole : 4P), LM (pole : 2P, number of stage : 2 stages) ② Suction : 50 mm diameter ③ Discharge : 40 mm diameter ④...

  • Page 9: Standard Specifications

    If the water contains a large amount of corrosive ions, it might not be used for the product. Please contact to your nearest Teral office, if the water has a higher pH value or contains a large amount of chloride ion, hydrogen sulfide ion, fluorine ion, bromine ion, and iodine ion, or it is the special liquid.

  • Page 10: Installation

    3. Installation Before using the pump Upon receiving the pump, check the following points first. The container may greatly incline depending on its center of gravity. Caution Before unpacking, ensure that the delivered container is placed in the correct orientation (not upside down). Pay special attention to nails especially when opening a wooden crate.
  • Page 11 Caution Install the product so that the total suction head (suction height + suction pipe resistance) is as small as possible within the standard specifications. Caution Do not install the pump at an upward curve of piping (where air is trapped). Failure to observe this may cause the pump to run dry, and seize up the sliding part in the pump.

  • Page 12: Installation Procedure

    (6) Ensure to provide a drain ditch around the pump. (7) If the system could be exposed to the freezing temperature in winter, ensure to take measures to prevent freezing in the pump room or to prevent the pump, sluice valves, piping, and other devices from freezing.

  • Page 13: Coupling Alignment Procedure

    CF-A-008 Fig. 3.4.1-1 CF – A (Cylindrical hub) 7.5kW CF-A-012 Fig. 3.4.1-1 11kW – 18.5kW CF – A (Spacer hub) LS2-e CF-A-022 Fig. 3.4.1-2 CF – A (Spacer hub) 22kW and over CF-A-028 Fig. 3.4.1-2 CF – A (Cylindrical hub) 5.5kW and less...

  • Page 14: Alignment (Cf-A Type Coupling)

    3.4.1 Alignment (CF-A type coupling) ボルトB Bolt B (ラジアル方向) (Radial direction) Cylindrical hub 円筒ハブ Pump Motor ポ 電 side side ン 動 プ 機 側 側 スプリングピン Rubber ボル トA Spring pin Bolt A ゴム体 body (軸 方向) (Axial direction) フランジハブ...
  • Page 15 Coupling Allowable amount of misalignment Bolt / Nut Parallel Angular Axial Size Tightening torque model ε θ L(mm) ° (N･m) (mm) CF-A-008 4±4 49 – 54 (bolt A/B) CF-A-012 4±4 49 – 54 (bolt A/B) 85 – 94 (bolt A/B) CF-A-022 120±5 49 –...

  • Page 16: Alignment (Ab Type Coupling)

    Warning Remove the shaft coupling cover when carrying out alignment. Before operating the pump, however, be sure to fit the cover back on. If the pump is operated without the cover, you may get caught in the machinery and injured. (9) When alignment is complete, pour mortar into the anchor bolt holes, the gap under the common bed, and the area around the common base.

  • Page 17: Precautions For Piping Work

    Allowable amount of misalignment Bolt / Nut Rated Coupling Tightening Axial Parallel Angular torque output model Size ε θ ° (mm) L(mm)±0.5 E(mm)±0.25 (N･m) 37kW, AB-25ZN-140 0.25 11.7 41.2 45kW 55kW AB-30ZN-140 0.25 11.7 71.5 75kW AB-35ZN-140 0.25 16.8 71.5 90kW –...
  • Page 18 Caution Be sure to install a strainer at the suction port of the pump. Otherwise, the piping may be contaminated with foreign objects, thus damaging the pump and the piping. Caution Do not forcibly screw a pipe into the pump with the companion flange attached to the pump.
  • Page 19 (8) For lifting operation ・ The suction pipes should be as short as possible with minimum bends. Do not attach a sluice valve to the suction pipes. Do not install the piping with a shape of upward bend (i.e. providing the piping with a rising gradient and then a descending gradient).

  • Page 20: Precautions For Wiring Work

    (equivalent to IE3) motor-equipped products tends to become higher than that of standard efficiency (IE1) motor-equipped products. If you have any questions, contact your nearest office of Teral. Note When switching from an IE1 motor-equipped product, it is necessary to verify the applicability of its protection device on the primary side of the pump.
  • Page 21 Do not use the inverter to drive a motor equipped with a self-protecting device. • When driving a 400V-class motor, contact your nearest office of Teral. In some cases it might be necessary to take measures for inverter surge. •...

  • Page 22: Operation

    4. Operation Check items before test operation 4.1.1 Check items related to the electrical system Warning Before changing the wiring, be sure to turn off the main power supply. Otherwise, you may receive an electric shock. Warning Do not use the product at any voltage other than the rated value. A fire or electric shock may occur.

  • Page 23: Running The Pump (Test Operation)

    Warning Before rotating the main shaft by hand to check it, be sure to turn off the main power. An unexpected start of the pump may cause an accident. (4) If the sluice valve is installed on the suction side, fully open the valve. (5) Prime the pump until water overflows from the priming funnel or the priming port.
  • Page 24 Caution Do not run the pump dry, and do not allow a large amount of air or foreign matter to enter the pump. Failure to observe this may cause damage to the sliding parts (bearings, etc.) inside the pump, disability of pumping, leakage or unusual noise.
  • Page 25 (8) Check for any abnormal pressure, electric current, vibration, noise, and other conditions. Refer to the following chart for the “vibration vs. rotation speed.” (If you install the pump on a vibration isolator, the standard vibration values are different from those in the following chart. Contact us in such a case.) [For reference only] Relation between the total amplitude (a)

  • Page 26: Maintenance And Inspection

    Caution For overhaul, replacement of parts, or repairs, ask the vendor, the servicing company specified by Teral, or your nearest Teral sales office. Incorrect work may cause a failure or accident. Precautions for maintenance and inspection (1) Observe the following instructions, in particular, during daily inspection.

  • Page 27: Shaft Seal Parts

    ○ Check the strainer fitted on the pump suction side, for any clogging. Clean it if it is clogged. Caution Periodically clean the strainer located on the pump suction side. A clogged strainer may cause pressure fluctuations, a lower discharge rate, abnormal noise, and other problems, thus leading to a pump failure.

  • Page 28: Mechanical Seal

    A drop of water that drips out of the gland is Pump suction inlet Standard drip rate from the about 0.05cc. gland packing (as a guide) diameter 20cc/min: The drip amount of the water of the 65 mm or less 10 to 20 [cc/min] degree that falls as droplets or like thread 80 mm or over...

  • Page 29: Maintenance Checklist

    Maintenance checklist Inspection interval Consumables Inspection Criterion Inspection point Inspection item Half- Timing of replacement method (Reference page) Daily Monthly Yearly yearly (as a guide)* Between 0 and 40°C  Temperature Measure (2-2) Check against the Less than 85% RH (2-2) ...

  • Page 30: Troubleshooting

    6. Troubleshooting If you find any abnormal conditions of the pump, carefully investigate the problem. For overhaul, replacement of the parts or repairs, ask the vendor or contact Teral or our servicing companies. Problem Cause (Reference page) Action (Reference page) Check the wires and connections to repair or Wiring is disconnected or broken.
  • Page 31 Problem Cause (Reference page) Action (Reference page) The bearing is worn or damaged. (5-1) Contact Teral or our servicing companies because disassembly and inspection are required. The oil is leaking. Overheat of bearing The oil level is low or the oil is deteriorated.
  • Page 32   Head Office 230, Moriwake, Miyuyki-cho, Fukuyama-city, Hiroshima, 720-0003, Japan Tel.084-955-1111 Fax.084-955-5777 Overseas Div. TERAL Koraku Bldg., 2-3-27, Koraku, Bunkyo-ku, Tokyo, 112-0004, Japan Tel.03-3819-6890 Fax.03-3818-6790 TP-346-01 TP-472-00...

This manual is also suitable for:

LsLs-eLs2-e

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