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3: Common Troubles and Maintenance Methods are listed as following:

Serial

NO.

Phenomenon

Description

Maintenance Methods

No Function

When Starting.

The LCD isn’t illuminating:

①

Fuse melts (in the Power Source Box or on

the transformer wire).

②

Power supply circuit poorly connected.

③

main PCB fails.

①

Replace Fuse.

②

Replace Power Box.

③

Replace main PCB.

No function

when starting.

The LCD is illuminating

：

①

Mechanical switch fails or it’s wire is

opened.

②

Up or Down Stroke Photo-electricity fails.

③

Main PCB fails.

④

Kneading is on without pressing any key

when starting and no response by pressing

other keys.

①

Replace mechanical switch or it's

wire.

②

Replace Stroke Photo-

electricity.

③

Replace the main PCB.

④

Width Inspection Board of PCB

fails, replace it.

No Width

switchover.

①

The terminals of Width Inspection on main

PCB and wires are poorly connected.

②

The terminals of Width Inspection on

massage mechanical and wires are poorly

connected.

③

Width Inspection fails.

④

Main PCB fails.

①

②

Plug the terminal securely or

replace the wires.

③

Replace Width Inspection.

④

Replace the main PCB.

No Partial

Function.

①

Height Inspection Terminal or wire poorly

contacts.

②

Height Counting Subassembly fails.

①

Plug the terminal securely or

replace the wires.

②

Replace Height Counting Sub

-assembly.

Содержание CZ-388

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

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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