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©2007 Parts and Pumps, all rights reserved.  No liability is accepted for incorrect application or faulty installation by end user.   

www.partsandpumps.co.uk

 

 

9. Testing Data 

 
 

a)  Solenoid resistance table 

 
Voltage: 230V, 50Hz 
Tolerance: +/- 10% 
SLL-20 & 30 models: Solenoids are in series connection 
Other models: Solenoids are in parallel connection 
 
 

 

Total R 

Single R 

SLL-40 

86.5

173.0

SLL-50 

60.8

121.7

EL-60 

36.7

73.4

EL-80-15 

21.9

43.7

EL-80-17 

33.1

66.2

EL-100 

20.0

40.0

EL-120W 

16.2

64.7

EL-150 

16.6

66.2

EL-200 

10.0

40.0

 

 

10. Spare Part Kits 

 
 
Only use genuine SECOH replacement parts. Non-standard parts will have a 
detrimental effect on overall pump life and performance.  
 
In order to ensure long service and operation, it is recommended diaphragms 
and valve boxes are replaced once a year. 
 

All

 parts; magnets, filters, service kits and diaphragms are available from 

www.partsandpumps.co.uk

 online site and can be despatched immediately.   

 
We also stock a complete range of Secoh pumps for replacement purposes 
and these can also be used to replace defective pumps of other brands with 
ease. 
 

Summary of Contents for SLL-20

Page 1: ...reserved No liability is accepted for incorrect application or faulty installation by end user www partsandpumps co uk SERVICE MANUAL SECOH AIR PUMPS Models covered in this manual SLL 20 30 40 50 EL 6...

Page 2: ...user www partsandpumps co uk Contents 1 Prior to maintenance and Service 2 Maintenance 3 Air filter cleaning replacement 4 Valve box and diaphragm replacement 5 Resetting auto stopper 6 Magnet replac...

Page 3: ...ntenance and service read and keep this manual carefully Follow the safety instructions Servicing and maintenance as described in this manual should be carried out by an authorised service facility 2...

Page 4: ...ng it off c Remove the filter element and brush off any dust particles by hand If heavily clogged with dust wash in a neutral detergent followed by a thorough rinsing in water Allow to dry in the shad...

Page 5: ...f the overall cover b Remove the overall cover If it is hard to remove insert a screwdriver in the slot provided c Pull out the bushing d Remove the shock absorber e Undo the 4 screws of the holder co...

Page 6: ...e hose clamp pull off the connecting pipe and remove the valve box i Undo the nut or bolt and remove the diaphragm Nut SLL series EL 60 80 15 120W Bolt EL 80 17 100 150 200 j Set the new diaphragm and...

Page 7: ...g the above procedure n Pull out the magnet support jig o Check the magnet is in a central position Note The tolerance of the centring of the magnet is within 0 5 mm see dimension d of sketch in appen...

Page 8: ...user www partsandpumps co uk t Put the shock absorber back into place u Insert the power cord bushing into the location notch Note It locates into the inner slot v Replace the overall cover and secur...

Page 9: ...ak down and excessive repair cost To prevent this from occurring EL series pumps are equipped with a protective switch If the diaphragm is broken the magnet reciprocates with abnormal amplitude and th...

Page 10: ...the procedure of section 4 from a to i b Remove diaphragm and pull out opposite diaphragm and magnet from other side c Assemble new magnet and diaphragm with nut or bolt d Insert the diaphragm and the...

Page 11: ...uch with surrounding articles Re position pump Discharged air volume decreases Air filter is clogged Clean or replace air filter Air diffuser or pipe is clogged Clean air diffuser and check piping Abn...

Page 12: ...Standard accessories L Joint hose with hose band Model EL 60 EL 80 15 EL 80 17 EL 100 Voltage V As shown in the name plate Frequency Hz Applied to 50 Optimal Press bar 0 2 0 2 0 2 0 2 Open Flow L min...

Page 13: ...66 2 EL 100 20 0 40 0 EL 120W 16 2 64 7 EL 150 16 6 66 2 EL 200 10 0 40 0 10 Spare Part Kits Only use genuine SECOH replacement parts Non standard parts will have a detrimental effect on overall pump...

Page 14: ...t K SLL D EM 0359025 Tank base packing 1 17 1 1 1 1 Magnet 1 8 Magnet K SLL M EM 0351008 Nut 2 24 1 1 1 1 E L S E R I E S Contents Required kit Qty Kit name Part No Code Parts included Qty Pos No EL60...

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