ABB PGC5007 - Replacing the Burner Block Wiring; Replacing the Burner Block O-Rings; Replacing the Jet

PGC5007
PGC5007 Operating Instructions 7 Detector repair
37 OI/PGC5007-EN, rev C
19. Close the isothermal oven door.
20. Close the Electronics Enclosure side door.
7.3 Replacing the burner block wiring
1. Perform steps 1 through 13 of "Replacing the Burner Block."
2. Remove the heater, thermocouple and temperature sensor leads, and the internal ground wire from the Burner Block.
3. Unscrew the cable conduit from the Burner Block.
4. Thread the new leads into the Burner Block.
5. Screw the new cable conduit onto the Burner Block.
6. Insert the heater, thermocouple and temperature sensor leads into the appropriate places in the Burner Block.
7. Install the Burner Block, following steps 14 through 20 of “Replacing the Burner Block.”
7.4 Replacing the burner block o-rings
1. Perform steps 1 through 13 of "Replacing the Burner Block."
2. To remove a particular O-Ring, carefully remove the associated connector and then remove the O-Ring (see Figure 7.4).
Permeation Wafer Plug
O-Ring 45051
-4-102
Jet
O-Ring 45051-5-18
O-Ring 45051-4-106
Burner Block Plug
Fig. 7.4. Burner Block, Showing O-Rings
3. Lubricate the new O-Ring with a slight film of silicone grease.
4. Insert the new O-Ring and reinstall the connector.
5. Install the Burner Block, following steps 14 through 20 of “Replacing the Burner Block.”
7.5 Replacing the jet
1. Remove power from the analyzer.
2. Allow all temperature zones to cool, maintaining flow while the columns are cooling.
3. Turn off carrier, sample, and air to the analyzer.
4. Open the isothermal oven door.
5. Carefully remove the Jet Nut and O-Ring (see Figure 7.4).
6. If the Jet came out with the nut, carefully remove the Jet from the nut.
7. If the Jet did not come out with the nut, carefully remove the Jet from the Burner Block by pulling it straight down.
8. Separate the O-ring from the Jet.
9. Insert the new Jet and O-Ring into the nut until it seats fully.
10. Carefully install and tighten the nut for the Jet assembly.
11. Reconnect carrier, gas and air lines.
12. Close the isothermal oven door.