LCC
32
in place and install the two (2) studs and nuts for the installation tool. Verify that
there are no burrs or sharp edges on the shaft that could damage the o-ring. Coat
the long set screws with anti-seize and thread them into the tapped holes until the
points are 1/8” (3mm) from the inside bore. Install the o-ring in the Seal Holder.
Coat the ID of the holder with RTV silicone sealant, including the o-ring and set
screw holes. Place a small bead of silicone around the shaft diameter to help the
o-ring slide. Use extra care at the shaft keyway. Place the gap spacer over the
shaft and carefully slide the holder until it contacts the spacer. Drop the
installation tool over the shaft and tighten the nuts ¼ to ½ turn past Hand Tight
against the tool. The gap spacer should not move and the holder should contact it
evenly on all sides. Tighten the set screws in a crisscross pattern. Remove the installation tool and gap spacer,
and then retorque the set screws. Coat the lock screws with anti-seize and tighten them in the tapped holes. Fill
the tapped holes flush to the top with silicone to protect the set screws. This will make removal easier for future
maintenance. Rotate the shaft by hand and check for smooth operation. Verify that the holders are square to the
end cover. The metal seal rings may appear cocked slightly relative to the holders. This is not a problem, the rings
will run true when the pump starts.
After the assembly is complete, remove one of the pipe plugs from the bearing housing. Install an air line fitting
and slowly pressurize the unit with dry shop air to 10-15 psi or 1 bar. Check all joints and the Duo-Cone seals for
leaks by spraying with a soapy water solution. Do NOT exceed 15 psi, as this could cause the torics to extrude
from the seal grooves. If this occurs, disassemble the unit and reinstall the toric. Release the air pressure, replace
the pipe plug and prepare the unit for shipping or installation on the pump pedestal.
Units being returned to service must be completely filled with oil. Remove the top filler plug and add oil. If the unit
will remain empty during pump installation, be sure it is clearly indicated to ADD OIL prior to start up on both the
pump and the control panel. After the day tank is connected, fill the hoses and tank. Allow time for the oil to
displace the air in the lines. Mark the oil level in the tank for reference. Note that a single hose system or colder
temperatures will require time to bleed all the air from the system. The level should equalize after the pump has
been operating for an hour or two. At this point, fill the tank to the correct operating level.
Underwater Bearing Assembly Oil Quantity
Shaft Size
Liters (Quarts)
70mm
9.46 (10)
100mm 17.98
(19)
125mm 26.60
(26)
Summary of Contents for GIW LCC 100-400
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