LCC
31
11.3 Duo-Cone Seals
Seal rings, rubber torics and housings must be
completely clean and free of any oil or dirt. Use a lint
free cloth with a solvent that evaporates quickly and
leaves no residue. It must be compatible with rubber
toric rings. Isopropyl Alcohol or other mild cleaner will
work. Follow all safety guidelines for use according to
the solvent Material Safety Data Sheet. Check the
rubber toric for surface defects and inspect the entire
metal seal face for dirt or marks. Do not place the
polished seal ring face on any surface.
Gently stretch the toric over the metal seal rings until it seats in
the radius. Verify that the toric is not twisted by inspecting the
mold flash line on the outside diameter. Eliminate any irregularity
by gently pulling a section of the toric radially off the ring and
letting it snap back. Twisted torics will cause nonuniform face
load, resulting in leakage and bearing contamination.
Place the housing end cover and seal holder on a flat, clean surface. Verify that the
grooves are clean and free from burrs or sharp edges. Using the correct Seal Installation
Tool, locate the machined ridge in the tool over the toric and clamp together. Align the parts
squarely with the groove and carefully snap the seal assembly into place using a rapid,
even push. Isopropyl alcohol can be used as a lubricant. Allow time for the assembly lube
to evaporate.
Apply a very thin film of pure Molybdenum Disulfide lubricant or light oil to the seal faces
just prior to final assembly. This will lubricate the seals during initial start up. Do not to get
any lube on the rubber toric rings. Be sure there is no debris on either of the seal faces,
since even a small piece of lint can hold the seal faces apart and cause leakage or damage
to the sealing surfaces.
Final assembly is detailed on the Bearing Housing Assembly drawing. Bolt the end covers
Rubber Toric
Metal Seal Ring
Содержание GIW LCC 100-400
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