TOC-6 Service Manual
7.5.5.5 Reassembly.................................................................................................................. 7-34
7.6 Radiant Heater Assembly Repair Procedures.................................................................... 7-34
7.6.1 Removing the Canopy/Heater Assembly.................................................................. 7-34
7.6.1.1 Realigning the Canopy ........................................................................................... 7-36
7.6.2 Replacing the Radiant Heater ........................................................................................ 7-37
7.6.3 Heater Door Spool Assembly.......................................................................................... 7-39
7.6.4 Heater Door Cable Adjustment...................................................................................... 7-40
7.6.5 Spring Tube Assembly Replacement........................................................................... 7-40
7.7 Compartment Sensor Repairs ...................................................................................................7-43
7.8 Removing the Upper End Cap Spring..................................................................................... 7-44
7.9 Lower Device Repairs .................................................................................................................... 7-45
7.9.1 Removing the Chassis Cover with the Storage Drawer in Place.................... 7-45
7.9.2 Incubator Fan, Fan Motor, and Optical Fan Sensor ............................................. 7-46
7.9.3 Incubator Heater Replacement..................................................................................... 7-47
7.9.3.1 Removing the Incubator Heater Closest to the Humidifier
End of the Bed.......................................................................................................................... 7-47
7.9.3.2 Removing the Incubator Heater Closest to the Control Panel
End of the Bed.......................................................................................................................... 7-47
7.9.4 Elevating Base........................................................................................................................ 7-48
7.9.5 Chassis Replacement ......................................................................................................... 7-50
7.9.6 Bed Raise/Lower Pedal Switch....................................................................................... 7-51
7.9.7 Canopy Foot Pedal Switch ...............................................................................................7-51
7.9.8 Canopy Membrane Switch Replacement ................................................................. 7-51
7.10 Bed Tilt Brake Pad Replacement............................................................................................ 7-52
7.11 Wheel Replacement..................................................................................................................... 7-53
7.12 Humidifier Assembly Repairs................................................................................................... 7-53
7.12.1 Disassembly ......................................................................................................................... 7-53
7.12.2 Reassembly .......................................................................................................................... 7-55
7.13 Control Panel and Display Module Procedures............................................................... 7-56
7.13.1 Probe Panel........................................................................................................................... 7-56
7.13.1.1 Power Fail Battery.................................................................................................. 7-57
7.13.2 Control Panel Components........................................................................................... 7-57
7.14 Control Board.................................................................................................................................. 7-57
7.15 Relay Board...................................................................................................................................... 7-58
7.16 Solid State Relays.......................................................................................................................... 7-58
7.17 Power Supply .................................................................................................................................. 7-58
7.17.1 Toroidal Transformer ....................................................................................................... 7-59
7.17.2 Canopy Lift Motor, ISO Transformer, Circuit Breakers, Power
Switches, and Power Outlets.................................................................................................... 7-59
7.18 Servo Controlled Oxygen Service Procedures................................................................. 7-60
7.18.1 Installing Oxygen Sensors ............................................................................................. 7-60
7.18.2 Replacing the Vent Screen............................................................................................ 7-60
7.18.3 Sensor Housing Repairs.................................................................................................. 7-61
7.18.3.1 Sensor Housing Repairs: Boards, Calibration Fan Assembly,
and Sensor Plug Assembly................................................................................................. 7-61