Table of Contents
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Table of Contents
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Summary of Contents for Fresenius Medical Care T688 Series
- Page 1 T688 Series Service Manual Medical Treatment Chair...
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Page 2: Table Of Contents
Hand Control removal / replacement .................. 16 Backrest Actuator removal / replacement ................17 Leg Rest Actuator removal / replacement ................18 Castors ..............................19 Central Locking Castors removal / replacement ................19 Contact ..............................21 Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 3: Serial Number
Serial number Figure 1. Type Label Model Number Model number + MM/YY of the treatment (Date of Manufacture) + chair: T688 four digits sequential numbers Figure 2. Type Label (Prior to June 2020) Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 4: Preventative Maintenance
Check if battery is charging when the power supply cable is ☐ connected to the wall outlet ☐ Check if the chair label exists on the base of the chair ☐ Electrical Safety Test Product serial number: Completed by: Date: Comments: Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 5: Installation
The backup battery (if fitted) will recharge automatically and slow to trickle charge when full. It is important to charge the backup battery for a minimum of 24 hours before use of the chair. Fresenius Medical Care T688 Series... -
Page 6: Troubleshooting
(Figure 1 or 2. Type Label – Serial number location section) attached to the chair. If unsure about any aspect of the above steps, please contact Fresenius Medical Care Seating at the contact details provided at the end of this service manual (see Contact Information section). -
Page 7: Power Source And Hand Control Indication
If there is a loss of feedback from any of the actuators, a ‘position lost’ beep will be heard from the control box when any button is pressed. Recalibrate T688 Series Chair using the nurse’s hand control as follows: ➢ Stage 1 – Clear System Faults Press both of the Up and Down arrow buttons of the chair height function simultaneously. - Page 8 Height actuators into the fully retracted (down) position. When completed the system will beep two times to confirm. Note. If the system does not beep twice when all of the actuators have stopped, please contact Fresenius Medical Care or your local representative for further assistance. Fresenius Medical Care T688 Series...
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Page 9: Service
2. Ensure the metal strip at the base of the back rest sits on the back frame of the chair. 3. Once in the correct position, push the top of the back rest into place ensuring the plastic clips properly lock onto the chair frame. Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 10: Seat Cushion Removal / Replacement
*Repeat the steps in reverse. 1. Attach the elastic loops to the anchor points located between the seat and the back rest. 2. Attach the elastic loops to the anchor points located under the leg rest. Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 11: Electrical Parts Replacement
7. Disconnect the two cables from the top of the control box (Figure 3) (power supply cable (B) and battery (C)). 8. Once disconnected, undo the two bolts (D) head screws (Figure 3). Fresenius Medical Care T688 Series V1 Aug 2020... - Page 12 2. Reconnect all the cables and mount the control box back onto the top frame. 3. Refit the seat cushion. Note. Recalibration and reprograming are required after replacing the control box. Fresenius Medical Care T688 Series V1 Aug 2020...
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Page 13: Lift Column Removal / Replacement (T688)
2. Place the chair upright on its castors. 3. Reposition the chair assembly onto the column. 4. Reposition the four mounting bolts of the column onto the top frame. 5. Refit the seat and backrest cushions. Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 14: Power Supply Cable Removal / Replacement
(Figure 8). • To replace the power supply cable: Connect the new power cable through the top frame, onto the control box. Reattach the earth point wire. Refit the seat cushion. Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 15: Battery Backup Removal / Replacement
Connect the cable of the new battery to the control box. Reposition the battery underneath the top frame, to its initial position. Insert the four screws into the top frame. Refit the seat cushion and backrest. Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 16: Mjb Junction Box Removal / Replacement
Reposition the new MJB junction box underneath the top frame. Insert the two bolts that holds the MJB junction box into the top frame. Reconnect all cables/ports that were previously connected into the MJB junction box. Refit the seat cushion. Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 17: Hand Control Removal / Replacement
• To replace the Hand Control: Connect the new hand control to the MJB junction box. Place the retention clip back on the MJB junction box. Reconnect the power supply cable to the wall outlet. Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 18: Backrest Actuator Removal / Replacement
Insert the Backrest actuator. Replace the two bolts connecting the actuator to the frame. Connect the actuator cable. Note. Recalibration is required after replacing the Backrest actuator. Note. Check of programming is recommended only. Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 19: Leg Rest Actuator Removal / Replacement
Insert the Leg Rest actuator. Replace the two bolts connecting the actuator to the frame. Connect the actuator cable. Note. Recalibration is required after replacing the Leg Rest actuator. Note. Check of prgramming is recommended only. Fresenius Medical Care T688 Series V1 Aug 2020... -
Page 20: Castors
Remove the black rubber plug and undo the bolt (U) (Figure 18). Note. Heat gun may be required to undo the bolt. Remove the nylon pedal stopper and the metal plate located over the castor (Figure 18). Fresenius Medical Care T688 Series V1 Aug 2020... - Page 21 Note. Ensure the wholes on the metal plate are facing up (Figure 18 and 19). Re-assemble the castor to the bottom of the chair. Ensure the central locking bar is positioned between the vinyl stopper and the blue breaking pedal. Fresenius Medical Care T688 Series V1 Aug 2020...
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Page 22: Contact
Contact Information You may address any technical inquiries regarding this change by sending an email to: sales.seatingau@fmc-asia.com or contact: FRESENIUS MEDICAL CARE SEATING (AUSTRALIA) PTY.LTD 786 Stud Road Scoresby, Victoria 3179 Australia SERVICE TEL: +61 (0) 3 9780 9509 SALES TEL:...
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