Submersible Grinder Pump Model DGU II Model DGFU Model DGFMU Operating Instructions, Installation & Maintenance Manual EBARA Fluid Handling EBARA International Corporation
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Contents Section Page 1. Safety Information and Introduction . . . . . . . . . . . . . . . . . . . . . 3 2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. Pump Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5. Operation . . . . . . . . .
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Specifications ! CAUTION Be careful not to exceed the given specifications in the use of your products. Check the nameplate for your pump’s motor voltage and current. Other specifications are noted in the chart below.
EBARA Submersible Grinder Pumps DGUII/DGFU Operating, Installation, and Maintenance Installation 1. Check the following before beginning installation: ! Warning Before insulation resistance measurement, always disconnect the power first. All electrical work should be performed by a qualified electrician and all national and local electrical codes must be observed. ! CAUTION When measuring the insulation resistance with meggar for motor windings do not test overload protection.
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Installation 2. Pump installation: ! 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. Handle the cables very carefully.
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Installation 3. Electrical wiring: ! Warning Check that the power is locked off and disconnected before working on pump. All electrical work should be performed by a qualified electrician and all national and local electrical codes must be observed. (1) Wiring a) Wire as indicated for the appropriate start system as shown in Fig. 3. b) Loose connections will stop the pump. Make sure all electrical connections are secure.
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Installation 3. Electrical wiring (continued) Manual Operation Type – Three Phase Model DGFU, DGFMU Output 2 to 5HP 208/230V 460V EBARA Fluid Handling www.pumpsebara.
EBARA Submersible Grinder Pumps DGUII/DGFU Operating, Installation, and Maintenance Installation (2) Cable a) Never let the end of the cable contact water. b) Secure the cable with vinyl strips to prevent damage. c) Install the cable so that it will not overheat. Overheating is caused by coiling the cable and exposing it to direct sunlight. (3) Grounding As shown in Fig. 4 ground the green wire (label E). Under no circumstances should the green wire be connected to the power supply.
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Maintenance and Service 2. Regular inspections: (1) Monthly inspections Measure the insulation resistance. The value should be more than 1 mega ohm. If resistance starts to fall rapidly even with an initial indication of over 1 mega ohm, this may be an indication of trouble and repair work is required. (2) Every 6 months Check the mechanical seal every six months.
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Maintenance and Service 4. Troubleshooting: ! CAUTION All service should be done by factory trained or qualified personnel only. Trouble Does not start. Starts, but immediately stops. Operates, but stops after a while. Does not pump. Inadequate volume.
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Maintenance and Service 5. Model DGUII construction (typical) PART NO. 001 005 011 †021 †025 †026 039 048 †111 †115-1 †115-2 †115-3 †117 120-1 120-2 120-3 120-4 PART NAME CASING INTERMEDIATE CASING DISK COVER IMPELLER GRINDER IMPELLER CUTTER RING KEY IMPELLER NUT MECHANICAL SEAL O-RING O-RING O-RING GASKET BOLT BOLT BOLT BOLT MATERIAL ASTM, AISI CODE NO. FOR 1 UNIT PART NO.
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Maintenance and Service 6. Model DGFU, DGFMU construction (typical) 115 838 924 811 120 4 1 1 1 6 200 811 924 838 2 849 2 2 2 115 5 115 3 817 876 120 5 801 830 802 814 849 1 120 7 909 111 193 2 115 2 816 120 4 115 1 193 1 120 3 021 120 1 120 2 005 001 174 025 117 026 048 039 160 PART NO.
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Maintenance and Service 7. Disassembly and Assembly ! CAUTION All service should be done by factory trained or qualified personnel only. Be sure to cut off power source before beginning disassembly.
DGUII/DGFU EBARA Submersible Grinder Pumps Operating, Installation, and Maintenance Leakage Detector (Does not apply to Model DGUII.) 1. Construction: Each switch has a magnet-containing float which senses the liquid level and magnetically actuates a dry reed switch encapsulated within a stem. The switch opens on rise of liquid. Leakage detector should be wired into control circuit to disconnect power to pump when activated. 2.
EBARA Submersible Grinder Pumps DGUII/DGFU Operating, Installation, and Maintenance Warranty Information 1. All specifications subject to change without notice 2.
Contact your dealer or supplier for more information about other EBARA products: EBARA Fluid Handling 1651 Cedar Line Drive • Rock Hill, SC 29730 (t) 803 327 5005 • (f) 803 327 5097 www.pumpsebara.
