Teledyne GFC-7001E - Trace CO Analyzer - Manual (Page 300)

Troubleshooting & Repair Model GFC7001E Carbon Dioxide Analyzer
Teledyne Analytical Instruments 300
13.6.2. REMOVING/REPLACING THE GFC WHEEL
When removing or replacing the GFC Wheel it is important to perform the disassembly in the following order to
avoid damaging the components:
1. Turn off the analyzer.
2. Remove the top cover.
3. Open the instrument’s hinged front panel.
4. Locate the GFC Wheel/motor assembly. See Figure 3-4.
5. Unplug the following electronic components:
 The GFC Wheel housing temperature sensor
 GFC Wheel heater
 GFC Wheel motor power supply
SAFETY SHIELD
SYNCHRONOUS MOTOR
SOURCE ASSEMBLY
THERMISTOR
HEATER
Figure 13-15: Opening the GFC Wheel Housing
6. Remove the three (3) screws holding the opto-pickup printed circuit assembly to the GFC Wheel
housing.