Teledyne M300EM User Manual
Troubleshooting & Repair
Teledyne API – Technical Manual - Model 300E Family CO Analyzers
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:
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:
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
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.
04288D DCN5752