(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.
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.
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.
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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.
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 other parts of may hinder ventilation.
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.
2.3 Standard specifications Model VKN-e VKP-e Note 1 Quality Grinding fluid, cutting fluid, etc. Applicable Temperature 40°C or lower (No frozen liquid is allowed.) liquid Dynamic viscosity See “Note 2.” Indoors, Height above sea level: 1,000 m or less, Humidity: 85%RH or less (No condensation is allowed.), Place not exposed to direct sunlight, Place whose atmosphere contains no Installation location...
2.5 Specification table • Model VKN-e Model VKN115A-e Specifications Output (W) Rated voltage (V) Frequency (Hz) Rated electric current (A) 32.5 Starting electric current (A) 34.0 36.0 Discharge rate (L/min) Total head (m) Maximum allowable limit of dynamic viscosity [mm Note 1) The discharge rate and the total head are values when the model is tested at a dynamic viscosity of 1 mm /s (the same viscosity as fresh water at normal temperature).
2.7 Internal structure drawing • VKN115A-e Part name Material Casing FC150/200 Base plate FC150/200 Impeller CAC407 S45C Hexagon head bolt Washer Mechanical seal Ceramics, Carbon BsP3-1/2H Adjusting piece Phosphor bronze O-ring Terminal box SPCC Motor main shaft S45C Motor • VKP115A-e Part name Material Spiral box...
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 -25 to 55 degrees Celsius and humidity of lower than 85%RH.
3.3 Precautions for installation [VKN-e/VKP-e] 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.
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Warning Before hoisting the pump, refer to the catalog, dimensional outline drawing, and other documents to check the weight of the units. Do not hoist any units if its weight exceeds the rated load of the hoisting equipment/devices. Warning Never use a pump that is being hoisted or install parts on it. Otherwise, the pump may fall.
Note Always keep the liquid level in the tank (oil tank) above the Minimum liquid level. Keep the suction port of the pump at least 38 mm away from the bottom of the tank (oil tank). (21) To hoist the pump, install an eyenut and a hexagon head bolt at two (diagonally-located) mounting holes of the pump, and pass a rope or the like through the eyenuts.
(7) If water hammer may occur, attach a pressure damper (e.g. 最大吸込配管長さ0.7m以下 Max. suction pipe length: 0.7 m accumulator). Pump (As short as possible with (8) Observe the following points when installing the suction pipe minimal upward curve) for the model VKN-e. Horizontal piping ...
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Refer to the “Starting electric current” and “Rated electric current” specified in “2.5. Specification table [page 2-4].” If you have any questions, contact Teral. Note When you switch from an IE1 motor-equipped product, it is necessary to verify the applicability of its protection device on the primary side of the pump.
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output of the inverter. Pay particular attention when selecting the inverter. • If the pump and motor produce resonance during normal operation, do not run them in the range of the rotation speed. Caution Do not run the pump at a frequency exceeding 60 Hz. Otherwise, it may lead to overload and burnout of the motor.
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 value of the motor.
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. (5) If you run the motor at variable speed with the inverter, be sure to check the following points through test operations.
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Caution Do not run the pump dry, and do not allow a large amount of air or foreign matter from entering the pump. Otherwise, it may damage the sliding parts (e.g. mechanical seal, bearings) in the pump, make it impossible to pump up liquid, or lead to leakage or unusual noise.
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(9) Before restarting the pump, confirm that the pump has stopped completely. Caution Before restarting the pump, be sure to check that the pump has stopped completely. Turning on the power while the pump is still rotating causes an excessive torque on the pump and may cause a failure. (10) Avoid sudden pressure fluctuations during the operation of the pump.
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.
Caution If you do not use the pump for a long time, turn off the power for safety. Otherwise, accumulated dust may cause heating or ignition. To prevent possible freezing inside the pump in winter, be sure to take antifreeze measures—such as heat insulation or the installation of a heater to the pump—or completely drain the pump.
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Maintenance checklist Inspection interval Timing of replacing Inspection Criterion consumables Inspection point Inspection item Half- method (Reference page) Daily Monthly Yearly (as a guide)* yearly Model VKN-e: Between 0 and 40°C Temperature Measure Model VKP-e: Between –20 and 40°C (2-2) Check against the specified range.
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 *...
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* 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 to be done by User, ask the vendor or contact Teral.
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.
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.
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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-456-00...
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