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 TM 55-1905-223-24-18-1
DISASSEMBLY
Remove helical compression spring (4, FIGURE 2-179) from hinge blade (2).
a.
Remove stop (3) from hatch (1).
b.
NOTE
Refer to TM 55-1900-204-24 for detailed
cutting and welding procedures.
c.
Remove sprocket (6) from hinge blade.
Remove toggle (7) from hinge blade.
d.
Remove pipe sleeve (5) from hinge blade.
e.
Remove hexagon nuts (13) from handwheel (14).
f.
Remove handwheel (14), handwheel and shaft (19) from hatch.
g.
h.
Remove delrin bushings (15) and preformed packing (11) from handwheel and
shaft (19).
Remove cover (18) from hatch (1).
i.
Remove cotter pins (16) from cylindrical pins (17).
j.
k.
Remove cylindrical pins (17) from dog arms (24).
Loosen set screws (22) and remove dog arms (24) with guides (23) and bronze
l.
bushing (25).
m.
Remove helical compression spring (9) from coupling (26), then remove
coupling.
n.
Remove shim (20) and pipe sleeve (12) from hatch.
Remove cover strap (21).
o.
Remove gasket retainer (8) and gasket (28) from hatch.
p.
Clean gasket channel thoroughly.
q.
NOTE
After removing the old gasket, the entire
gasket channel should be thoroughly cleaned.
Remove coaming (27) and cover (10).
r.
2-705
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