4-34. HEAT EXCHANGER ASSEMBLY - continued.
Repair is limited to replacement of defective parts.
Fuel line and Sight Glass (Refer to Figure 4-64)
Apply anti-seize compound (Item 3, App E) to sight glass (1) and install sight glass.
Insert one end of fuel line (2) through hole near top of heat exchanger shell (3) from the
Insert the other end of fuel line (2) through hole near top of heat exchanger (4).
Install grommet (5) on heat exchanger shell (3) and grommet (6) on heat exchanger (4).
Connect fuel line (2) to fuel pump (7) and burner (8).