7-6 THERMOCOUPLE BUSBAR (AVIM) (Continued)
Remove bolts (1) and retaining plates (2), if fitted.
Engine thermocouple terminal bars are
insulated with baked ceramic which is extremely
fragile; therefore, avoid twisting terminals when
loosening screws. Use 9/64 inch Allen head
wrench for alumel terminal screws and 7/64 inch
Allen head wrench for chromel terminal screws.
Hold terminal bars of thermocouples with long-nosed
Pliers (T.74) and remove screws from thermocouple
Remove busbar (4).
Install bolts (3). Torque to 9 to 12 inch-pounds and
Inspect busbar for:
- Damaged threads
- Broken strips or lugs
Replace damaged items.
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