TM 5-4220-227-14
6-11.
Heater/Chiller Module (Cont).
(1)
Replacement of heating element. (figure 6-18)
(a)
Remove 14 screws (1) and remove cover (2).
(b)
Remove two screws (3) and remove cover (4).
(c)
Tag and disconnect electrical plug leads (5) from control box (6).
(d)
Remove two self-locking nut (7) and remove electrical plug (8).
(e)
Remove two screws (9) and lockwashers (10) and remove bracket (11).
(f)
Remove four screws (12) and lockwashers (13) and remove two brackets (14).
(g)
Remove two screws (15) and remove cover (16) from junction box (17).
(h)
Tag and disconnect four wires (18).
(i)
Remove two self-locking nuts (19) and remove two connectors (20).
(j)
Remove heating element (21).
(k)
Clean all components using nonionic detergent cleaner and rinse with clean distilled water.
(I)
Inspect all components and replace any component that is burnt, cracked, stripped threads or
otherwise damaged.
(m)
Install heating element (21).
(n)
Install two connectors (20) and secure with two self-locking nuts (19).
(o)
Connect four wires (18) to junction box (17).
(p)
Install cover (16) on junction box (17) and secure with two screws (15).
(q)
Install two brackets (14) and secure with four screws (12) and lockwashers (13).
(r)
Install bracket (11) and secure with two screws (9) and lockwashers (10).
(s)
Install electrical plug (8) and install two self-locking nuts (7).
(t)
Connect electrical plug leads (5) in control box (6).
(u)
Install cover (4) and secure with two screws (3).
(v)
Install cover (2) and secure with 14 screws (1).
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