TM 9-4120-378-14
4.35 HEATER ELEMENTS. - continued
Remarks
Action
Location/ltem
Heater
Mounting
Bracket
Insulation
Inspection
a.
Inspect for damaged or missing insulation,
b.
Replace as necessary.
Terminal Board
(TB2)
Inspect TB2 for corrosion or damage.
a.
Inspection
b.
Replace as necessary.
Test elements by checking for continuity between the
Test
two electrical leads (1 and 2) of each heater element
(3.) If continuity does not exist, replace the element.
a. Tag and disconnect leads (1 and 2) from termi-
Removal
nal board TB2 (4).
Remove two screws (5), two Iockwashers (6),
b.
and two flat washers (7) securing heater support
bracket (8) to housing.
Remove heater support bracket (8) from ends of
c.
heating elements (3).
d.
Remove three screws (9) and three Iockwashers
(10) securing heater mounting bracket (11) to
housing.
e.
For each heater element (3), remove nut (12),
Iockwasher (13), flat washer (14), and insulator
(15) securing heater element (3) to heater mount-
ing bracket (11).
Do not remove tags from heat-
f.
Slide each heating element (3) from heater
er element wire.
mounting bracket (11).
Remove heater mounting bracket (11) with ter-
g.
minal board (TB2) (4) and marker strip (16) from
unit.
h
Remove two screws (17), two Iockwashers (18)
and two nuts (19) securing TB2 to bracket (11).
i.
Remove terminal board TB2 from bracket (11).
