TM 10-4610-239-24
TM 08580B-24/3
DISASSEMBLY. (Cont)
i.
Remove crossbar (16) from upper base structure (3).
j.
Remove six screws (17) and stationary contacts (18).
k.
Tag and remove two auxiliary contacts (19).
l.
Remove two screws (20) and lockwashers (21). Discard lockwashers.
m.
Remove two spring supports (22), springs (23), lower base structure (12), yoke (24), and pad (25).
n.
Remove six screws (26) and three heaters (27) from overload relay (2).
CLEANING.
WARNING
Dry-cleaning solvent AA 711 TYPE I & II is highly toxic and can ignite
organic materials, nitrates, carbides, and chlorates. Wear eye, skin, and
respiratory protection. Use in a well-ventilated area.
a.
Using a soft brush and dry-cleaning solvent; remove dirt, dust, and contaminants from metal and plastic parts.
b.
Remove dirt, carbon, and dust from electrical contacts.
c.
Clean threads of parts and hardware.
d.
Allow parts to air dry.
INSPECTION.
a.
Inspect plastic parts for cracks, fractures, or chipped edges.
WARNING
To provide continued protection against fire and shock hazard, replace
overload relay and heater element if a current heater element burns out.
b.
Inspect heat element for cracks and signs of burns. Replace as required.
c.
NOTE
Replace all contacts and springs as a group to prevent misalignment.
d.
Inspect electrical contacts for pits or burning. Replace as required.
e.
Inspect contact springs for broken or deformed coils. Replace as required.
f.
Inspect reset lever for freedom of movement. Replace overload relay if movement is impaired.
g.
Inspect mounting bracket for damage. Replace as required.
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