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service manual sll-20, 30, 40 & 50 el-60, 80-15, 80

1. EM 0377007 SLL SERIES Contents Parts included Required kit Qty Diaphragm Diaphragm holder Nut Valve box amp valve Filter element Filter packing Tank packing Diaphragm Diaphragm holder Nut Valve box amp valve Filter element Magnet Magnet Auto stopper
2. appendix k Insert the magnet supporter jig in the 4 corners between the magnet and the core Note Make sure that the magnet is in the centre of the solenoids l Install the new valve box and secure into position using the 4 corner screws m Replace opposite diaphragm following 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 appendix p Push on the connecting pipe and refit the hose clamp q Reset the auto stopper If necessary r Connect power cord to confirm proper operation Danger Do not touch live parts Touching live parts will result in electric shock s Fasten the holder cover with the screws 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 secure by using the nuts and bolts w Replace air filter as previously described Secure filter cover using the truss head screw 5 Reset auto stopper protective switch Function of auto stopper A running pump with a broken diaphragm may cause a major break 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 reciprocate
3. 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 shade Note Do not use benzene or thinner to clean filter element as it can be damaged d After cleaning reassemble the filter element back in place Make sure to put the harder side of the filter facing downwards Press in the filter cover e Secure the filter cover by the truss head screw 4 Valve box and diaphragm replacement a Undo the 4 corner bolts of the overall cover b Remove the overall cover If it is hard to remove insert a screwdriver in the slot provided O lt Pull out the bushing Overall cover JEA 7 ee 5 d Remove the shock absorber e Undo the 4 screws of the holder cover Note It is easier to change one diaphragm at a time f Insert the magnet support jig in the 4 corners between the magnet and the core Note The magnet support jig carton strips is included in the service repair kit g Undo the 4 screws of the valve box Hose clamp h Slide down the 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 amp EL 60 80 15 amp 120W Bolt EL 80 17 100 150 amp 200 j Set the new diaphragm and fix it by the nut or bolt torque see table at
4. SERVICE MANUAL SECOH AIR PUMPS Models covered in this manual SLL 20 30 40 amp 50 EL 60 80 15 80 17 amp 100 EL 120W 150 amp 200 10 Prior to maintenance and Service Maintenance Air filter cleaning replacement Valve box and diaphragm replacement Resetting auto stopper Magnet replacement Diagnosis of failures Technical Specification Test data resistance table Spares Kits and replacement parts e Prior to maintenance and service read and keep this manual carefully e Follow the safety instructions e Servicing and maintenance as described in this manual should be carried out by an authorised service facility IN DANGER d e Always disconnect power supply before servicing Failure to do so could result in electrical shock personal injury or death e Do not touch live parts Touching live parts will result in electric shock Cleaning the air filter The air filter must be cleaned every 3 to 4 months to insure correct operation and replaced regularly Occasional checks Is air blowing out properly Is the air pump making abnormal noise or vibrations Is the temperature of the air pump not abnormally high Is the power cord or plug damaged or discoloured gt If any irregularity is found read DIAGNOSIS OF FAILURES 3 Filter element cleaning or replacement a Undo the truss head screw of the filter cover b Remove the filter cover by firmly pulling it
5. d Clean or replace air filter Air diffuser or pipe is clogged Clean air diffuser and check piping Abnormal temperature arises Air filter is clogged Clean or replace air filter Air diffuser or pipe is clogged Un block air diffuser or pipe Pump sometimes operates and sometimes not Air filter is or diffuser is clogged Clean or replace air filter or diffuser A decrease in airflow caused by clogged air filter or air diffuser may lead to an extraordinary rise in operating temperature This will activate a thermal protector and stop the pump When the temperature reduces the pump will automatically restart If in doubt about any service or maintenance procedures please call http ledoed com ua Model SLL 40 SLL 50 Voltage V As shown in the name plate Frequency Hz Applied to 50 Optimal Press bar 0 2 0 2 Open Flow L min 68 75 Max Power W As shown in the name plate Outlet dia mm OD 19 mm Weight kg 4 5 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 105 115 120 145 Max Power W As shown in the name plate Outlet dia mm OD 19 mm Weight kg 8 5 Standard accessories L Joint hose with hose band Mode
6. l EL 120W EL 150 EL 200 Voltage V As shown in the name plate Frequency Hz Applied to 50 Optimal Press bar 0 25 Open Flow L min 225 265 310 Max Power W As shown in the name plate Outlet dia mm OD 27 mm Weight kg 16 Standard accessories L Joint hose with hose band a Solenoid resistance table Voltage 230V 50Hz Tolerance 10 SLL 20 amp 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 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 http ledoed com ua 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 K SLL D EM 0359025 Diaphragm repair kit K SLL M Diaphragm repair kit K EL60 80 15 M EM 0374008 Magnet K EL80 17 100 M EM 0405000 Auto stopper IS F180 17 150 200 EM 0434000
7. s with abnormal amplitude and the projection of the magnet hits the slider of the auto stopper The contact is interrupted and power is cut off Auto stopper reset Slider a Follow the procedure of chapter 4 from a to e b Set the slider at the position L1 L2 c Follow the procedure of section 4 from point r to point w l E LETETT EEEEEEES N Auto stopper K i 6 Magnet replacement a Follow the procedure of section 4 from a to i b Remove diaphragm and pull out opposite diaphragm and magnet from other side Weigh al c Assemble new magnet and diaphragm with nut or bolt d Insert the diaphragm and the magnet between the solenoids The projection should be upward e Install replacement diaphragm to opposite side f Follow the procedure of chapter 4 from k to w 7 Diagnosis of Failures Pump does not work Power plug is disconnected Plug in and check if electricity is available Cord is broken Internal wiring damaged Check electrical continuity with circuit tester Auto stopper activated Open cover to check for damage on diaphragm Excessive noise Valves or diaphragm are damaged Open cover to check for damage or disconnection L Tube is damaged or disconnected Re connect or replace L Tube Pump is in touch with surrounding articles Re position pump Discharged air volume decreases Air filter is clogge

service manual sll-20, 30, 40 & 50 el-60, 80-15, 80

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service manual sll-20, 30, 40 &amp; 50 el-60, 80-15, 80

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service manual sll-20, 30, 40 & 50 el-60, 80-15, 80