Cozzia CZ-388 Page 10 Maintenance Service Manual Download

Page: 10 / 49

No gas charging

in the seat-pad.

①

The terminal of the snuffle valves and

wires are poorly connected.

②

The snuffle valves fail.

③

The inflator pump fails.

④

Main PCB fails.

①

Plug the terminal securely.

②

Replace the snuffle valves.

③

Replace the inflator pump.

④

Replace main PCB.

No gas charging

in the foot rest.

①

The terminal of the snuffle valves and

wires are poorly connected.

②

The snuffle valves fail.

③

The inflator pump fails.

④

Main PCB fails.

①

Plug the terminal securely.

②

Replace the snuffle valves.

③

Replace the inflator pump.

④

Replace main PCB.

Summary of Contents for CZ-388

Page 1: ...CZ 388 Maintenance Service Manual...

Page 2: ...cover of Backrest 5 7 Guidance of Disassemble up down limit sensor 5 8 Guidance of Disassemble the Kneading motor 5 9 Guidance of Disassemble the Counting sensor of Rolling motor 5 10 Guidance of disa...

Page 3: ...5 19 Guidance of Disassemble the Footrest Extend Assy 5 20 Guidance of Disassemble the Air valves inside the Footrest...

Page 4: ...ts 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 5: ...krest wire black is not well connected 2 up down limit sensor is broken 1 check whether the backrest wire black is well connected 2 change the up down limit sensor turn on the chair 07 tested more tha...

Page 6: ...lling motor wire disconnected 1 change upper limit sensor 2 check whether the backrest wire black is well connected 3 change rolling motor or rolling motor wire activate auto check model 15 height cou...

Page 7: ...est recline actuator wire is disconnected 3 the signal wire of the backrest recline wire is disconnected 1 change backrest recline actuator 2 check whether the backrest recline actuator motor wire is...

Page 8: ...essing any key when starting and no response by pressing other keys Replace mechanical switch or it s wire Replace Stroke Photo electricity Replace the main PCB Width Inspection Board of PCB fails rep...

Page 9: ...08 No response when pressing the keys on the remote controller The terminals and wires are poorly connected The PCB in the remote controller fails Plug the terminal securely or replace the wires Repla...

Page 10: ...ls Plug the terminal securely Replace the snuffle valves Replace the inflator pump Replace main PCB 13 No gas charging in the foot rest The terminal of the snuffle valves and wires are poorly connecte...

Page 11: ...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 12: ...top back of the chair Unzip it to the end Then detach the backrest pad forwards from the backrest Velcro As pictures below show C Locate the backrest wire connecters at the bottom of the backrest Then...

Page 13: ...Remove the cotter pin first then the link As the pictures below show E Adjust the Backrest Assy vertically and slowly lift the Backrest Assy upwards to detach As pictures below show Locate the level l...

Page 14: ...t pad Tracking along the wire we can find the wire connecter Then use diagonal cutter get ride of the cable tie which secure the heater wire connecter As pictures below show D Locate the zipper head o...

Page 15: ...per which is on the rear side of backrest pad We can find the heaters As pictures below show G Use diagonal cutter get ride of the cable tie which secure the heater wire Then use long Locate the zippe...

Page 16: ...st pad assy C Locate the air hoses below the seat pad Tracking along the air hose and we can find the air hose connecters Then disconnect them As pictures below show D Locate the vibration motor wire...

Page 17: ...pper Then unzip it to the end And then we can detach the seat pad assy As pictures below show E Use diagonal cutter get ride of the cable tie which secure the zipper heads Then unzip the zipper to the...

Page 18: ...assy first Refer to 5 1 Guidance of disassemble the backrest assy B Disassemble the backrest pad assy Refer to 5 2 Guidance of disassemble the backrest pad assy C Disassemble the seat pad assy Refer t...

Page 19: ...o 5 4 Guidance of disassemble the side board B Locate the two hexagon screw bolts which secure the thigh massage unit Use Allen Key to slacken and remove these two screw bolts As pictures below show L...

Page 20: ...the screws which secure the air bag Then disconnect the air hose And then the air bag can be taken off As pictures below show The thigh massage has been taken off Velcro has been Separated Cover of t...

Page 21: ...cover of the backrest As pictures below show C Slacken and remove the four screws which secure the rear cover of backrest Then we can detach the rear cover As pictures below show D Locate the four scr...

Page 22: ...down limit sensor Refer to Replacing front cover of backrest rear cover of backrest B Cut cable ties which secure the limit sensor wire Backrest hardware front cover of backrest Hold it pull up Locate...

Page 23: ...necter 5 8 Guidance of Disassemble the Kneading motor A Detach the front cover of backrest Then we can find kneading motor Refer to Replacing front cover of backrest rear cover of backrest Locate of k...

Page 24: ...bush slowly As picture below show E Use long nose pliers take off the close end wire connector of kneading motor As pictures below show Kneading belt has been taken off Cable tie has been taken off He...

Page 25: ...motor 5 9 Guidance of Disassemble the Counting sensor of Rolling motor A Detach the rear cover of backrest Then we can find counting sensor of rolling motor Refer to Replacing front cover of backrest...

Page 26: ...T bush slowly As picture below show D Use diagonal cutter get rid off the cable ties which fasten the counting sensor wire Locate cable ties Cable ties have been taken off Heat shrinkable T bush has...

Page 27: ...et ride of the glue and pry out the counting sensor 5 10 Guidance of disassemble the Gear box A Detach the rear cover of backrest Then we can find gear box Refer to Replacing front cover of backrest r...

Page 28: ...shown in Fig 3 E Holds the Gear Box with one hand and the other hand slowly detach the Kneading belt red as shown in Fig 4 F Slowly detach the Gear Box from its respective area red as shown in Fig 5 G...

Page 29: ...acken and remove the screw After the four screw has been removed then we can take the top bar off As picture below show D There are two stoppers inside the guide rail Use long nose pliers and screw dr...

Page 30: ...the close end wire connecters H Use flat screw driver turn the rolling motor and drive the mechanism out of the guide rail Heat shrinkable T bush has been peel off Locate close end wire connecters Th...

Page 31: ...hanism 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 the be...

Page 32: ...ties which secure the remote control wire Use diagonal cutter to get rid of these two cable ties As pictures below show C Locate the remote control wire connecter Use screw driver slacken and remove...

Page 33: ...D Slacken and remove the wire connecter cap then we can disconnect it and detach the remote control As pictures below show The connecter has been disconnected Remote control has been detached...

Page 34: ...e As pictures below show C Pull the main PCB box out a few Then use screw driver slacken and remove 6 screws which secure the main PCB box assy cover Then remove the cover As pictures below show D Loc...

Page 35: ...release the main PCB As pictures below show F Locate the zero gravity actuator PCB in the middle of the board Disconnect the wire connecters first With help of long nose pliers we can detach it As pi...

Page 36: ...DC12V Z G Actuator signature Remote control Heater DC12V Footrest actuator DC24V Backrest actuator DC24V Footrest extend DC24V Backrest motors Rolling motor tapping motor kneading motor TRANSFORMER OU...

Page 37: ...main PCB box out a few Then use screw driver slacken and remove 6 screws which secure the main PCB box assy cover Then remove the cover As pictures below show D Locate the transformer on the left side...

Page 38: ...ct them As pictures below show F Use spanner slacken and remove the hexagon bolt which secure the transformer Then we can detach the transformer As pictures below show Locate the transformer wire conn...

Page 39: ...ll the main PCB box out a few Then use screw driver slacken and remove 6 screws which secure the main PCB box assy cover Then remove the cover As pictures below show D Locate the air valves on the rig...

Page 40: ...lve Use screw driver slacken and remove them Then use long nose pliers remove the other air hose clip and disconnect the air hose Then disconnect the wire harness connecter and we can detach it As pic...

Page 41: ...e main PCB box out a few Then use screw driver slacken and remove 6 screws which secure the main PCB box assy cover Then remove the cover As pictures below show D Locate the inflator air pump on the r...

Page 42: ...pump Use long nose pliers hold on the rubber supporter then pull the supporter up Then we can detach the inflator pump As pictures below show G When assemble the inflator pump we have to use long nos...

Page 43: ...t wires and air hose Then we can detach the left side upper front cover As pictures below show C Hold on the screw nut with a wrench meanwhile slacken the screw bolt with a Allen key Then we can remov...

Page 44: ...As pictures below show 5 19 Guidance of Disassemble the Footrest Extend Assy A Disassemble the footrest Refer to Guidance of Disassemble the footrest B Slacken and remove the screws which fixing the p...

Page 45: ...show E Use Allen key and spanner remove the three hexagon socket head cap screws As pictures below show F Use screw driver and spanner remove the two screws which fixing the rear of footrest extend AS...

Page 46: ...then we can detach the feed screw nut unit As pictures below show Locate the screws Use screw and screw nut to hold on the footrest extend ASSY Locate the screws Footrest ASSY has been taken off Hold...

Page 47: ...ver first Then use Allen key slacken and remove the inner hexagon screw bolt Then remove the footrest roller And we can find the zipper head As pictures below show C Locate the zipper heads by the sid...

Page 48: ...ers remove the two clips which secure the air hose Then disconnect these air hose As pictures below show Get ride of the cable tie that secure the wire connecter Locate the 2pcs clips Air hose have be...

Page 49: ...side air hose of the air valve Disconnect it at the T connecter Then we can detach it As pictures below show G Use long nose pliers remove the clip Then we can remove the air hose As pictures below s...

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Cozzia CZ-388, Maintenance Service Manual

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