ABB PGC5000 Series Service Instructions Manual page 60

PGC5000
PGC5000 Series Service Instructions
ABB recommends using an alcohol such as Methanol to check for leaks as it dries quickly and leaves no
residue.
15. Power down the oven.
16. Isolate carrier and utility gases.
17. Slowly loosen and remove cell vent caps.
18. Reconnect the bridge amplifier's AC power connectors and tighten the connector screws.
19. Cut off a short piece of each wire and remove ¼ inch of insulation.
20. Tin wire using 40 watt soldering iron.
21. Refer to Figure 7.4 for wiring color code.
Fig. 7.4. Multiport Filament Layout
22. Route wires as shown in Figure 7.5 and solder to filament leads using a 40 watt soldering iron.
Fig. 7.5. Filament Wiring Location
23. Cover each solder connection with ½ inch of clear shrink sleeving and shrink with a heat gun. Pinch the open end of the
sleeving together while still hot, to close the end of the sleeving.
24. Install o-ring as necessary into o-ring groove of cell body.
25. Re-install cover and screws removed in step 7.4.1.
26. Torque screws to 16 in./lbs.
27. Reposition detector and tighten the three brackets in the electronics housing to secure.
SI/PGC5000-EN, Rev B
7 Subassembly repair
60