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CF3208U-H002 REV.0 

 

EBARA 

CORPORATION

.

 

- 1 - 

 

EBARA   
Submersible Sewage Pumps 

 

Model DL 
Model DL

 

with cutter

 

 

Instruction Manual

 

 

To the personnel of installation works 

The  Instruction  Manual  shall  be  handed  to  the  user  who  conducts  operation,  maintenance,  and 

inspection of the pump.

 

 
Contents 

 

(page) 

  (page) 

 

  Warning indication ....................................... 2 

  Maintenance .............................................. 13 

  Precautions of safety ................................... 3 

1.  Daily inspection ................................... 14 

  Introduction .................................................. 5 

2.  Regular inspection ............................... 14 

1.  Confirmation of pump and auxiliaries ..   5 

3.  Precautions during stop-operation ...... 15 

2.  Confirmation of nameplate .................... 5 

4.  Consumables....................................... 15 

  Product specification ................................... 6 

5.  Action when protective device is activated 
 

 ................................................................... 

15 

  Installation   ................................................. 8 

1.  Confirmation before installation ............. 8 

   

Troubleshooting ........................................ 17 

2.  Installation ............................................. 8 

   

Structure

 ......................................................... 

18 

3.  Electric wiring ...................................... 10 

1. Sectional view

 ........................................... 

18 

  Operation ................................................... 12 

10

  Disassembling and Assembling ................ 19

 

1.  Before starting ..................................... 12 

11

  Limited Warranty ....................................... 19 

2.  Test operation ..................................... 12 

12

  Repair and after-sale service .................... 20 

 
 
 
 

3.  Test operation ..................................... 13 

 

4.  Operation ............................................. 13 

 

Request 

Welcome to the EBARA submersible sewage pump. EBARA fabricated the pump with special care for 

assuring safe handling. Since, however, mal-operation of the pump may induce accident, correct use of 
the pump referring to the instruction manual is requested. 

 
The Instruction Manual shall be stored at a place allowing ready reference. 

This operational instruction manual 
shall be handed to the user. 

 

D7 

Summary of Contents for DL

Page 1: ...ion when protective device is activated 15 Installation 8 1 Confirmation before installation 8 Troubleshooting 17 2 Installation 8 Structure 18 3 Electric wiring 10 1 Sectional view 18 Operation 12 10...

Page 2: ...ontents shall be observed in any case Description of the indication Terms of warning Description Warning Wrong handling expects to raise a danger resulting in death or serious injury of the operator C...

Page 3: ...sassembling repairing and modifying the pump shall be limited to a repair technician There is a possibility of injury caused by electric shock ignition abnormal functioning trouble etc Before entering...

Page 4: ...nt or by leakage of enclosed liquid from mechanical seal Do not use the pump at an important facility computer cooling apparatus cooling apparatus for refrigerator etc Since machining oil rubber relea...

Page 5: ...the nameplate Specifically care shall be paid on the frequency 50 Hz or 60 Hz Caution Do not operate a pump of 50Hz at 60Hz The operation at wrong frequency induces pump break caused by excess pressur...

Page 6: ...clusion of foreign matter Do not use the pump at facilities for organisms fish farm fish preserve aquarium etc There is a possibility of extinction of organisms caused by leak current or by leakage of...

Page 7: ...side Ceramics carbon sliding material at motor side NBR rubber material Turbine oil ISO VG 32 Motor 1 2 Model number of poles Thermal class Phase frequency voltage current Built in protective device D...

Page 8: ...erval depending on the use environment Depending on the use environment there may be generated rust at threaded sections machined sections with rust proof coating rust proofing sections etc 1 On trans...

Page 9: ...his will not happen 13 Models DLA and DLJ will undergo automatic alternate operation only when they are paired Position the floats for these automatic alternate operation pumps DLJ as shown in Fig 5 T...

Page 10: ...needs to be provided in the final installation It is recommended to use a circuit breaker as main breaker that is suitable for isolation according to appropriate legal standard EN60947 2 and is equip...

Page 11: ...el E among the four lines as shown in Fig 7 Never connect the Green and Yellow stripe cord or the Green cord to the power source The grinding shall be surely conducted conforming to the Technology Sta...

Page 12: ...ition or at near the operable minimum water level the Auto cut in the motor is actuated If the situation is repeated the pump life becomes short Once the Auto cut is actuated the motor does not start...

Page 13: ...the pumps are now ready for operation Note Operate the pump at a discharge rate suitable for the facilities Operation at excessively small or large capacity causes noise and vibration and consumes unn...

Page 14: ...hin the limit of pump rating the pump may have caught foreign matter 2 If the discharge rate showed a sudden decrease foreign matter may have clogged the suction opening 2 Regular inspection 1 Once a...

Page 15: ...t every disassembly for inspection Every 20000 cycles of operation Every 100000 cycles of operation Expected replacement time One year or 6000 hours of total operating hours either of shorter one Once...

Page 16: ...and water to a container Then clean the inside the leakage detector s chamber and motor chamber and replace the mechanical seal as well as gaskets and O rings Leakage Detector Contact rating AC280V 0...

Page 17: ...ace the mechanical seal Liquid quality and operation conditions need to be reviewed Replace the mechanical seal Pumping not effected or insufficient pumping capacity Pump running in reverse rotation G...

Page 18: ...L SEAL 1 SET 811 SUBMERSIBLE CABLE 1 115 1 O RING 1 814 MOTOR FRAME 1 115 2 O RING 1 816 BRACKET 1 115 3 O RING 1 817 BRACKET 1 117 1 GASKET 1 830 SHAFT 1 117 2 SEAL WATER 1 849 1 BALL BEARING 1 120 1...

Page 19: ...without contacting with the suction cover Then enter the operation of the pump 11 Limited Warranty EBARA Corporation warrants to the original retail purchaser Customer the followings 1 This warranty v...

Page 20: ...uires about the pump please contact EBARA Singapore Ebara Engineering Singapore Pte Ltd Website www ebara com sg E mail ebaranet singnet com sg Malaysia Ebara Pumps Malaysia Sdn Bhd Website www ebara...

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