CT 259-08-09 Depto. Comercial São Paulo Rua do Rócio, 84, 8º andar Vila Olímpia - São Paulo - SP Fone: (11) 2124 7744 Fax: (11) 2124 7745 e-mail: saopaulo@ebara.com.br Depto. Comercial e Fábrica Rua Joaquim Marques Figueiredo, 2-31 Bauru - SP Fone: (14) 4009 0020 / 4009 0000 Fax: (14) 4009 0011 e-mail: bauru@ebara.com.br Depto. Comercial Recife Av. Mal. Mascarenhas de Morais, 1776 Loja 04 - Imbiribeira - Recife - PE Fone: (81) 3087 1190 Fax: (81) 3471 1533 e-mail: recife@ebara.com.
INSTRUCTION MANUAL Model DSC4 Contents 1. Preface …………………………………………..……….....................….……….. Page 04 2. Acceptance Inspection ……………………………………......................…...….. Page 04 3. Installation ………………………………………..………………......................…. 3.1 Foundation ….………………………………..…………........................….. 3.2 Floor Frame ……………………...…………..………………..........……….. 3.3 Discharge Elbow Installation ……………………………….….........…….. 3.4 Discharge Pipe Installation ...………………...…………..........….……….. 3.
INSTRUCTION MANUAL Model DSC4 1. Preface Design of this EBARA pump is based on superior engineering and long experience. To prevent trouble and provide satisfactory operation and long life, it is important to understand the EBARA pump thoroughly by careful study of this manual. If any questions arise regarding this manual, please direct them to EBARA. Your questions will be promptly answered and your suggestion may be considered for incorporation into our future products.
Model DSC4 INSTRUCTION MANUAL Impeller side Motor side Model DSC4 INSTRUCTION MANUAL 3. Installation 3.1 Foundation Place concrete to build up the floor and discharge elbow foundations to the values shown in installation drawing. The discharge elbow foundation must have sufficient size and strength to support the weight of the pump body, submersible motor and accessories plugs the weights of the discharge pipe, and to absorb vibrations and impacts resulting from operation.
Model DSC4 INSTRUCTION MANUAL 3.3 Discharge Elbow Installation (Fig. 4) WARNING: WHEN LIFTING THE PUMP, USE APPROPRIATE CRANE (OR HOIST) AND LIFT SYSTEM. CHECK POSITION AND TIGHTNESS OF LIFT SYSTEM SO THAT WEIGHT OF THE PUMP IS NOT UNBALANCED. FAILURE TO OBSERVE THIS PRECAUTION CAN RESULT IN SERIOUS ACCIDENTS. Model DSC4 INSTRUCTION MANUAL (2) Impeller disassembly Remove the impeller bolt cap and impeller bolt with special tools. Remove the impeller with Special pull out tool. (Refer to Fig.
Model DSC4 INSTRUCTION MANUAL (2) Protect surfaces of mating flanges and the corners of spigot and socket. (3) Cover the shaft threads to protect from damage after disassembly. (4) After disassembly, apply temporary rust prevention to the machined surfaces such as lifted surfaces, threads, shafts, etc. (5) Be careful not to drop tools and parts into the sump pit.
Model DSC4 INSTRUCTION MANUAL 3.6 Check the Followings Points (1) through (6) Prior to Pump Installation (1) Ensure that the mechanical seal chamber is filled with specified amount of oil. (2) All plugs and fastening bolts are properly tightened. (3) The sealing chamber is not leaking. (4) The pump is not damage and the cable glands and cables are in satisfactory condition. (5) Insulation resistance values are within limits. (See 3.6.2) (6) Other points that require particular attention. (See 3.6.3) 3.6.
INSTRUCTION MANUAL Model DSC4 Model DSC4 INSTRUCTION MANUAL (4) Rotor (a) After checking the oil, put your hand through the pump discharge and turn the impeller. If it turns smoothly, the rotating components should be in satisfactory condition. (b) If the impeller resists or feels locked, the pump requires overhaul. Use one of the following oils or equivalent. Turbine Oil ISOVG32 6.3.3 Reinstallation After the pump has been thoroughly inspected, reinstall it by reversing the lifting procedure.
INSTRUCTION MANUAL Model DSC4 Model DSC4 INSTRUCTION MANUAL 3.6.2 Insulation Resistance Measurement WARNING: ALL ELECTRIC WORK SHOULD BE PERFORMED BY A QUALIFIED ELECTRICIAN AND ALL NATIONAL AND LOCAL ELECTRICAL CODES MUST BE OBSERVED. Although insulation resistance of this pump has been shop tested, it should be rechecked prior to installation, using the following procedure. Usually, insulation resistance of a minimum of 50MW is considered satisfactory (when measured with a DC 500V Megger).
INSTRUCTION MANUAL Model DSC4 WARNING: WHEN LIFTING THE PUMP, USE APPROPRIATE CRANE (OR HOIST) AND LIFT SYSTEM. CHECK POSITION AND TIGHTNESS OF LIFT SYSTEM SO THAT WEIGHT OF THE PUMP IS NOT UNBALANCED. FAILURE TO OBSERVE THIS PRECAUTION CAN RESULT IN SERIOUS ACCIDENTS. Model DSC4 INSTRUCTION MANUAL P rotective device cable P ow er cable P2 G P1 L1 L2 6.3.1 Steps for Lifting Pump (1) Remove the floor plate. Hook the lifting chain on the hoist or motor-driven chain block.
INSTRUCTION MANUAL Model DSC4 3.6.3 Other Checks Requiring Particular Attention (1) Minimum operating water level Be sure that the pump stop level is not lower than the minimum operating water level specified in the technical document. If the stop level is lower, a vortex flow can occur causing the pump to intake air, resulting in noise and vibration.
INSTRUCTION MANUAL Model DSC4 CAUTION: SINCE THE STARTING TORQUE ON LARGE PUMPS CAN BE POWERFUL, THE PUMP MUST BE SUPPORTED. DANGER: DURING CHECKING THE DIRECTION OF ROTATION, DO NOT TOUCH ROTATING PARTS OF THE PUMP. KEEP HANDS, HAIR AND TOOLS AWAY FROM ROTATING PARTS TO PREVENT SERIOUS ACCIDENTS. 5.3 Cautions of Operation Closed valve operation of the pump is no problem if operating is not prolonged.
Model DSC4 INSTRUCTION MANUAL 3.8 Cable Installation (Fig. 13) When the pump has been installed, pull out the power cable, protective device cable, water level switch cable, etc. from the cable lead-out elbow on the floor and connect them to the control panel. Model DSC4 INSTRUCTION MANUAL (Head) Total head Solid line : Normal Broken line : Reversed Total head (H1 + H2) m CABLE LEAD-OUT ELBOW Rated output (Rated amperage) FLOOR PLATE Shaft output (Amperage) (Capacity) Fig.
INSTRUCTION MANUAL Model DSC4 5. Operation 5.1 Operational Limitations This pump is designed to operate under the following conditions: (1) Liquid temperature : max. 40ºC (105° F) (2) Liquid : This pump must not be used with sea water and corrosive chemicals or combustible liquids. (3) Lowest liquid level : Refer to lowest liquid level shown in the technical document.
Model DSC4 INSTRUCTION MANUAL CAUTION: A MOTOR PROTECTIVE DEVICE SHOULD BE INSTALLED ON CONTROL PANEL TO PROTECT THE SUBMERSIBLE MOTOR AGAINST OPEN-PHASE, OVER-CURRENT OR INCHING. Table 2 (Example) Motor Grounding Grounding line classification resistance diameter AC 600V below 10Ω φ1.6 mm Model DSC4 INSTRUCTION MANUAL (Source : Electrical Equipment Technical Standards, Ministry of International Trade and Industry). 4.3 Protective Device Cable Connection (Fig.
