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Maintenance

 

of

 

the

 

seat

 

part

 

Guidance of disassemble main PCB. 

A

Slacken and remove the screws which fixing the PCB box cover. Then take off the main PCB box cover. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B: Then disconnect all the connecters of the main PCB.   

 

 

 

 

 

 

 

 

 

 

 

 

 

Locate the screws that 

fixing the PCB box cover. 

Slacken and remove the screws 

that fixing the PCB box.

Pull the PCB box cover out. 

All the connecters has been 

disconnected 

Main PCB 

PCB box cover has been taken off. 

Summary of Contents for EC-320D

Page 1: ...Xiamen Comfort Science Technology Co Ltd Maintenance Service Manual MODEL EC 320D voltage specification 220 240V By the Easepal s Customer Service Dept...

Page 2: ...s that are damaged and reuse the serviceable parts During the dismantling or assembling process do not damage other parts and PCB Be on the alert for loose or disconnected connectors during repair Do...

Page 3: ...required Screwdriver size 1 2 3 Diagonal cutter and long nose pliers Soldering Kit Spanner tools Kit Test pen Allen Key set Ratchet Tools Set Blower Electric Driver electrical adhesive tape Cable Tie...

Page 4: ...EUP EUP board spoil Main PCB failed Replace Fuse Replace Power Box EUP Replace EUP board Replace main PCB 01 No function B LCD HAS DISPLAY Mechanical switch fails or it s wire is broken Up or Down St...

Page 5: ...eplace Width Inspection Replace the main PCB 03 NO Rolling Terminals or Wire Poorly Contact UP Down stroke Photoelectrictity Subassembly Failed Rolling Motor Failed Main PCB failed Plug the terminal w...

Page 6: ...troller 07 backrest can t recline or lift calves rest can t lift or recline The terminal of electrically operated pusher and wires are poorly connected The electrically operated pusher failed Main PCB...

Page 7: ...he PCB before please make sure your body is connected with the ground 1 No function Check the terminals of Up and Down Stroke Subassembly connected well Check the UP DOWN Stroke Subassembly Touch well...

Page 8: ...width Inspection board Replace the width inspection Replace Main PCB Check the terminals of rolling motor wire with main PCB connected securely Touch well Check the rolling motor Replace gear box Repl...

Page 9: ...the terminals of Kneading motor wire with main PCB connected securely Touch well Check the Kneading motor Replace gear box Check width Inspection board Replace the width inspection NG OK NG OK NG OK C...

Page 10: ...terminals of remote controller wire and main PCB connected securely Check the conductive rubber Replace the remote controller Touch well Replace it The terminals of their actuator with main PCB conne...

Page 11: ...for bags with main PCB connected securely Check the snuffle valve Touch well Check the terminals of inflator pump with main PCB connected securely Replace the inflator pump Replce snuffle valve Touch...

Page 12: ...the back rest Unzip the zipper fixing the pad and the seatrest 2 zippper If it s damaged a new one should be replaced Proceed in the reverse order of disassembly when replacing a new one Backrest and...

Page 13: ...l appearance Proceed in the reverse order of disassembly when assembling the rear cover Tool 1 a plus screwdriver 3 Disassembly and replacement of the front cover of the back rest 4 After disassemblin...

Page 14: ...the reverse order of above operation if replacement needed Tool 1 a plus screwdriver 4 Replacement of up down limit switch assembly A Detach the rear cover of backrest Then we can find up down limit...

Page 15: ...screw nuts D Use long nose pliers get ride of the glue then disconnect the connecter Up limit switch assembly Lowwer limit switch assembly Locate cable tie Use diagonal cutter get ride of the cable ti...

Page 16: ...off the kneading belt first C Use diagonal cutter get ride of the cable ties which fasten the mechanism wires D Use diagonal cutter peel the heat shrinkable T bush slowly As picture below show Kneadi...

Page 17: ...rolling motor A Detach the rear cover of backrest Then we can find counting sensor of rolling motor Refer to Guidance of detach front cover rear cover B Use diagonal cutter get ride of the cable ties...

Page 18: ...ies which fasten the counting sensor wire E Use long nose pliers take off the close end wire connector of counting sensor of rolling motor As pictures below show Be careful don t cut the wire Heat shr...

Page 19: ...ch rear cover front cover of backrest B There are four screws fixing the top bar As pictures below show C Use a long nose pliers hold the screw nut firmly then slacken and remove the screw After the f...

Page 20: ...pictures below show E Use diagonal cutter get ride of the cable ties which fasten the mechanism wires F Use diagonal cutter peel the heat shrinkable T bush slowly As picture below show Locate cable ti...

Page 21: ...pliers remove all the close end wire connecters H Use flat screw driver turn the rolling motor and drive the mechanism out of the guide rail Locate close end wire connecters The massage mechanism has...

Page 22: ...e mechanism B Use a strong screw driver slacken and remove the screws which fixing the rolling motor unit to the mechanism frame As picture below show C Slacken and remove the two screw which fixing t...

Page 23: ...pping belt Cut the wire connecting the tapping motor and the electric filter Slacken and remove the screws fixing the tapping motor Then the motor can be removed a new one can be replaced if needed Pr...

Page 24: ...ews tightening the upper and lower cover of the box 2 The PCB and lower cover are fixed to the sheet metal with 2 pieces of screws Slacken and remove the screws 2 If the PCB fails cut the wires and ca...

Page 25: ...B box cover Then take off the main PCB box cover B Then disconnect all the connecters of the main PCB Locate the screws that fixing the PCB box cover Slacken and remove the screws that fixing the PCB...

Page 26: ...cover Refer to GUIDANCE OF CHANGE MAIN PCB B With help of a monkey wrench slacken and remove the bolt that fix the transformer C With help of a diagonal cutter get ride of the cable ties that fasten t...

Page 27: ...semble the Air valve A Take off the PCB box cover And we can see air valve Refer to GUIDANCE OF CHANGE MAIN PCB B Slack and remove the screws fixing the air valve 2 locate of transformer connecters Lo...

Page 28: ...aken down Guidance of disassemble Inflator Pump A Take off the PCB box cover And we can see Inflator Pump Refer to GUIDANCE OF CHANGE MAIN PCB B With help of a diagonal get ride of all the cable ties...

Page 29: ...e reclining actuator on the U stay fork and remove the flat head rivet Remove the guard cloth under the foot rest then one end with a motor of the actuator can be found Romove split pin draw out flat...

Page 30: ...uator on the U stay fork and remove the flat head rivet Romove split pin draw out flat head rivet securing the foot rest actuator on the base frame and remove the flat head rivet Take care not forget...

Page 31: ...the zippper you can see 2 screws fixing the sideboard 9 Replacement of the remote controller Slacken and remove the screws tightening the nylon clamps then the remote controller can be removed Procee...

Page 32: ...cut the cable tie Romove split pin draw out flat head rivet securing the foot rest actuator on the base frame and remove the flat head rivet Pull up the seat pad and you can found the screw bolts and...

Page 33: ...and remove the 4 screws for upper leg rest slack and remove the 2 screws fixing the lowwer leg rest Take down the wheel and the foot pad Screws under the leg rest Screws on both side of the leg rest 4...

Page 34: ...ke down the upper leg rest take down the 4 permanent seat take down the PE board then you can replace the upper leg rest cover and air bag Slack and remove the 2 screws on the lower leg rest as below...

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