Cozzia BK-750, Maintenance Service Manual

Page 1: ...Maintenance Service Manual Model BK 750 BY COZZIA SERVICE DEPARTMENT...

Page 2: ...2 8 Guidance of Disassemble the Remote control 11 2 9 Guidance of Disassemble the Remote control bracket Wireless charge 11 2 10 Guidance of Disassemble the side board controller PCB 13 2 11 Guidance...

Page 3: ...s 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 Ti...

Page 4: ...t pad and backrest Unzip the zipper to the end Then detach the backrest pad forwards from the backrest Unzip the zipper that on the both side of backrest C Continue to detach down the backrest pad we...

Page 5: ...to the end E Locate the zipper on both sides of seat pad unzip the zipper to the end Then the backrest Assy can be take off 2 2 Guidance of Disassemble the Footrest assembly A Locate the zipper betwee...

Page 6: ...e off them C Move backward the footrest we can find the another cotter pin that fixing the footrest Remove the cotter pin and disconnect the air hose connector wire with harness connector Then the foo...

Page 7: ...ing the rear cover of the footrest assembly and use screwdriver slacken and remove these screws C Locate the four screws that fixing the PCB box cover and remove them we can find the footrest PCB D Di...

Page 8: ...ures below show B Locate the four screws on the rear cover backrest Use screwdriver remove these screws Then we can detach the rear cover 2 5 Guidance of Disassemble the Rear cover of Headrest A Detac...

Page 9: ...rative parts can be take off Attention Be careful to do not damage the decorative parts C After remove decorative parts on both sides we can take off the headrest cover 2 6 Guidance of Disassemble the...

Page 10: ...ide board A Take off the rear cover of backrest refer to Guidance of Disassemble the Rear cover of Backrest Take off the rear cover of Headrest refer to Guidance of Disassemble the Rear cover of Headr...

Page 11: ...Then locate and remove the other six screws that secure the side panel on the rear headrest cover D Disconnect the air hose connector and unplug the wire connector E Lift the side board upwards then...

Page 12: ...connector cap and take off the remote control 2 9 Guidance of Disassemble the Remote control bracket Wireless charge A Take off the left side board outer cover and decorative parts Refer to Guidance o...

Page 13: ...t As pictures below show Attention Be careful the armrest easy to deform D Remove the screw and we can take off the remote control bracket E Locate the four screws and remove them we can take off the...

Page 14: ...te the screws that fixing the right armrest and remove it Then take off the right armrest and disconnect the connector on the side controller PCB Refer to Guidance of Disassemble the Remote control br...

Page 15: ...ulder massage Then unzip the zipper of shoulder massage cover to end C Locate the four screws that fixing the shoulder massage and remove them Then the shoulder massage assembly can be take off D Disc...

Page 16: ...e off the main PCB box cover B Locate the main PCB on the PCB tray Disconnect all the wire connectors that connected to it Then slacken and remove the screws that fixing the main PCB then the main PCB...

Page 17: ...the screws that fixing the Bluetooth Audio PCB then the Bluetooth Audio PCB can be take off 2 13 Guidance of Disassemble the massage mechanism A Take off the rear cover of backrest Guidance of Disass...

Page 18: ...en we can take off the rear cover of massage mechanism D Use the diagonal cutter get ride of the cable ties which fasten the Back stringing Then disconnect the connector which the Back stringing on th...

Page 19: ...mble the Back stringing A Disconnect the connector which the Back stringing on the massage mechanism PCB Refer to Guidance of Disassemble the massage mechanism B Locate and remove the screws that fixi...

Page 20: ...nt baffle and take off the front baffle C Use the diagonal cutter get ride of the cable ties which fasten actuator wires to the frame Then tack the footrest actuator wire harness to locate the wire co...

Page 21: ...actuator Use the diagonal cutter get ride of the cable ties which fasten actuator wires to the frame Then tack the zero gravity actuator wire harness to locate the wire connector Then disconnect them...