TM 9-4520-258-14
4-20.
REAR PANEL ASSEMBLY - continued.
e.
Installation (Refer to Figure 4-20)
(1)
Install ring (1) on sight glass tube (2), do not tighten.
(2)
Install rear panel (3) over insulator (4), gently pull insulator through rear panel so it rests on the
outside of rear panel.
(3)
Apply anti-seizing compound (Item 3, App E) to screws (5). Install thirty-three flat washers (6), thirty-
three lockwashers (7), thirty-three screws (5).
(4)
Apply a heavy bead of sealant (Item 4, App E) around sight glass tube (2) so it goes through the gap
and provides a tight seal.
(5)
Push ring (1) up against rear panel (3) and tighten.
Figure 4-20. Rear Panel Installation (Sheet 1 of 2)
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