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T20-a

O P E R AT I O N TA B L E

Se
rvice manual

T-SM47j

111707

Summary of Contents for T20-a

Page 1: ...T20 a OPERATION TABLE Service manual T SM47j 111707...

Page 2: ...Road Lancing West Sussex BN15 8TJ England Tel 44 0 1903 765040 Fax 44 0 1903 875711 Overseas Customers Contact your local distributor In case of doubt contact Eschmann Equipment Patents and Trade mar...

Page 3: ...c covers 23 6 2 4 1 Removal of telescopic covers 23 6 2 4 2 Refitting the telescopic covers 23 6 2 5 Bellows 23 6 2 5 1 Removal of the bellows 23 6 2 5 2 Replacing the bellows 24 6 3 Table base compon...

Page 4: ...7 6 7 8 Base pedals 48 6 7 9 Cycle of movements 48 6 8 Accessories 48 Figures 1 0 Identification of main parts 6 2 1 Major dimensions and movements 10 2 2 Maximum patient weights 11 2 3 Maximum patien...

Page 5: ...equired for components are detailed in the part replacement section 6 0 for that item to save duplication As routine the Service Schedule should be followed in the event of an additional service due t...

Page 6: ...P6 54 T SM47j Fig 1 0 Identification of main parts NOTE The table illustrated has external pedal locking catches Some tables have internal locking catches see section 6 2 and 6 3 for details...

Page 7: ...ies in bulk charge Amber Mains on batteries in top up charge duration 2 hours Green Mains on batteries in trickle charge i e fully charged 20 Standby battery charging state LED colour code as main bat...

Page 8: ...y with a large amount of tilt set maximum Trendelenburg cannot be achieved Max Trendelenburg 1 35 Max reverse Trendelenburg 1 35 Max extension 4 230 Max flexion 4 90 Head section 5 45 Leg section 3 10...

Page 9: ...d class of this table as marked on the table or section by the use of these symbols 2 7 Use in conjunction with other equipment 2 7 1 Electrosurgical equipment h f The T20 a operation table has been d...

Page 10: ...y may not be available in certain combinations e g maximum tilt and maximum Trendelenburg Movements that could cause damage cannot be catered for e g position of the leg section Fig 2 1 Major dimensio...

Page 11: ...T SM47j P11 54 T20 a OPERATION TABLE Fig 2 2 Maximum patient weight v table position graphs...

Page 12: ...P12 54 T SM47j Fig 2 3 Maximum patient weight v table position graphs...

Page 13: ...consists of the interface to the infrared handset corded handset via RS232 footswitch and standby panel It also controls the table power LED The main controller communicates with the two actuator con...

Page 14: ...odulated signal is fed to the infrared LED via a FET The whole system is powered via 2 AA batteries 3 2 2 2 Corded handset The 4 x 5 matrix keyboard is decoded using a proprietary keyboard decoder Thi...

Page 15: ...AXIS BREAK RIGHT AXIS BREAK RIGHT AXIS TRAVERSE POSITION MONITORS OVER CURRENT MANAGERS CONNECTORS POWER MANAGEMENT PROCESSOR COMMUNICATIONS INTERFACE CONNECTOR 64 WAY 4 12 44 Keyboard Encoder Infrar...

Page 16: ...emoval Replace the actuator as soon as possible 4 5 Working with mains voltage The only time that it may be required to work with mains voltage applied to the table is whilst testing the battery charg...

Page 17: ...overs and check battery fuses see section 5 3 1 and 6 6 26 Also look to see if the PCA indicator lights are flashing on for 1 second and off for 1 second If they are off or flashing faster this indica...

Page 18: ...atch mechanisms 6 3 12 and renew the anti slip pad on both pedals 6 3 11 7 Check security of all fixing screws nuts and retaining clips within the base area and check the pedal operation works smoothl...

Page 19: ...oth break arms in the short trunk move up and down together If required replace adjust or recalibrate 6 5 2 3 and 6 5 2 4 27 Service infrared handset 6 6 23 Check function and condition of corded hand...

Page 20: ...riate safe working procedures for live working are adopted see section 4 5 6 1 7 To avoid duplication of common procedures a cross reference to the required part of the manual detailing the procedure...

Page 21: ...ace screws Note These screws differ in length and must be put back as found short 12mm to short trunk end long 15mm to long trunk end iii Raise the telescopic covers to gain access to the lower part o...

Page 22: ...ail To remove rivets a Pull up plunger head see B do not damage rivet head b Pull rivet out of cover see A To replace rivets a Align holes in cover sections see A b Place rivet in hole so that shoulde...

Page 23: ...on on the column PCA vi Continue to lower the telescopic covers and disconnect the earth wire from the middle telescopic cover where it is connected to the wrap round vii Remove the four screws two pe...

Page 24: ...ct parts are used during part replacement refer to the illustrated Parts list 6 3 2 Batteries IMPORTANT NOTE See section 6 6 26 battery management system reconditioning before changing the batteries i...

Page 25: ...ints are observed a Correct positioning of all components and refer to note on Fig 6 2b b Use threadlock part number 670650 on all threads and tighten castor screws to 4Nm Do not overtighten as this c...

Page 26: ...P26 54 T SM47j Fig 6 2a Table base general arrangement external pedal catch Torque settings M10 x 40mm screws securing item 1 to item 2 40Nm Castor screws 4Nm Note Item 28 no longer fitted...

Page 27: ...ont pedal shaft thrust ring 24 Rear pedal 25 Front pedal 26 Front castor plate shim 27 Castor plate 28 M10 x 50mm Screw 27 28 29 30 31 32 33 34 35 36 TYPICAL CASTOR ASSY 29 M10 nut 30 Castor insulatio...

Page 28: ...ont pedal 26 Front castor plate shim 27 Castor plate 28 M10 x 50mm Screw 27 28 29 30 31 32 33 34 35 36 TYPICAL CASTOR ASSY 29 M10 nut 30 Castor insulation pad 31 Castor pillar bush 32 Static discharge...

Page 29: ...d in section 6 3 3 using the grease and threadlock as specified v Replace covers as section 6 2 2 2 and check all base functions for correct operation 6 3 10 Pedal catch block To replace or adjust the...

Page 30: ...assembly WARNING Removal and replacement of the telescopic column assembly entails lifting the trunk sections the complete wrapround assembly and blocking up the base assembly These procedures require...

Page 31: ...j P31 54 T20 a OPERATION TABLE now part of item 4 now part of item 1 Fig 6 3 Table column general arrangement Note Use threadlock Part No 113042 on all fixings crews within the tilt and Trend gimbal f...

Page 32: ...ectrical connections as required and ensure the loom from the connector block is free from any fixing to the table iii Remove the connector assembly block two screws and release the tilt potentiometer...

Page 33: ...s been removed between the release handle actuator and the gas spring release button then back off approximately half a turn Apply threadlock part number 670650 and tighten the piston locking nut onto...

Page 34: ...P34 54 T SM47j Fig 6 4 General arrangement of head and leg section Note Leg section illustrated Torque settings Guide pin screw 8Nm Gas spring shoulder screw 10 Nm Sidebar screw 15Nm...

Page 35: ...s 6 5 2 7 Push button components 6 5 2 8 Traverse rod bearing 6 5 2 9 Drive belt guide needle bearing 6 5 2 10 Attachment blocks 6 5 2 11 Black tops To gain access for some of these procedures it is n...

Page 36: ...ightening the M10 set screws ensure that they only engage onto the flat of the lead screw and do not engage onto the thread of the lead screw x Reassemble the table by reversing the above and test all...

Page 37: ...E Fig 6 5 Table long trunk general arrangement Torque settings Lead screws M10 set screw 20Nm Actuator arms M8 csk screw 14 Nm Sidebar screw 21Nm Black top M6 csk screw 6 Nm All M8 button head screws...

Page 38: ...d screws M10 set screw 20Nm Actuator arms M8 csk screw 14 Nm Sidebar screw 21Nm Black top M6 csk screw 6 Nm All M8 button head screws 10Nm All M3 Torx cover screws 0 5Nm Note On later tables ensure th...

Page 39: ...essary to remove the P clip on the break gearbox loom and the bottom cover item 3 and 11 of Fig 6 6 i Remove the R clip in the end of the push button from below the table top This will release all the...

Page 40: ...P40 54 T SM47j Fig 6 7 Table traverse general arrangement Torque settings M10 screw fixing to column 48Nm M6 skt hd fixing screw 9 Nm...

Page 41: ...es shown in Fig 6 5 and 6 6 iv Test all table functions 6 6 ELECTRICAL COMPONENTS WARNING Ensure correct procedures are used if mains voltages are exposed Take care when handling or getting close to P...

Page 42: ...and take care not to loose the four small spacers iii Replace the new four actuator PCA with the insulation sheet and spacers as found reconnect all the loom connections and then checkAppendix 2 and p...

Page 43: ...he motors fail to run in both directions replace the telescopic column assembly as detailed in section 6 4 4 6 6 10 Break potentiometer loom 6 6 10 1 To replace a break potentiometer loom see note in...

Page 44: ...9 Handset button functions and serial labels Note Labels shown above are examples see the applied serial label for the actual data OLD INFRARED HANDSET NEW INFRARED HANDSET Fig 6 10 Old and new infra...

Page 45: ...Remove the cross beam top cover item 10 of Fig 6 7 to gain access to the top connector block and loom Remove the ring crimp terminals of the loom where they connect to the connector block noting conn...

Page 46: ...e opposite end before clipping the back and front mouldings together iv Replace the securing screws using the six new screws evenly and tighten them to a torque setting of 0 5Nm v Test the unit functi...

Page 47: ...ill not give the true indication of battery capacity on this first discharge i e LED may go from green straight to red 6 7 FUNCTION TESTS Before and after any maintenance procedure part replacement ad...

Page 48: ...ection using a digital protractor Return the table top to level with the auto level button 4 Operate the table to maximum traverse in both directions and confirm the amount of movement agrees with tha...

Page 49: ...Nm If the torque tools being used are imperial use the chart below to convert the values to either lb in or lb ft as required Always ensure that the equipment in use is both calibrated and that this...

Page 50: ...ate break right Calibrate break left Four actuator PCA Program main controller Configure main controller Program actuator controller Configure actuator controller Calibrate tilt Calibrate Trend Calibr...

Page 51: ...T SM47j P51 54 T20 a OPERATION TABLE APPENDIX 3 SCHEMATIC DIAGRAMS Fig A1 T20 a Schematic diagram Trunk Section...

Page 52: ...P52 54 T SM47j Fig A2 T20 a Schematic diagram Pedestal Section...

Page 53: ...T SM47j P53 54 T20 a OPERATION TABLE Fig A3 T20 a Schematic diagram Base Section...

Page 54: ...3 2 Connect Tool No 110721 to the mains and plug the table mains cord into the tool s socket 3 3 Connect the other end of the table mains cord into the table s mains inlet socket 3 4 Connect the Green...

Page 55: ......

Page 56: ...Eschmann Equipment Peter Road Lancing West Sussex BN15 8TJ England Tel 44 0 1903 753322 Fax 44 0 1903 875789 www eschmann co uk...

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