NEW PAGE 3200-826
Sept, ‘1994 Mar, 2015
Cornell Pump Company
Dismantling and Assembling Cornell Frames
F18DB and EM18DB Grease Lubed and F18DBK Oil Lubed
Oil lubricated frames are denoted by a “K” on the serial plate and an oil level sight gauge on the side of the frame.
DISMANTLING (refer to parts page for names and locations of parts)
1. Remove the deflectors from the shaft.
2. Remove the drive end shaft key.
3. Remove the capscrews from the bearing cover or drive end bracket.
Note: Oil lubricated frames have double lip seals at the drive and pump ends. Grease lubricated frames have a single
lip seal at the drive and pump ends. If the lip seals are to be saved, the shaft should be cleared of burrs or sharp
protrusions which would cut the seal. If the seals are removed or replaced, see parts page for orientation of the lips.
Paired seals have a grease passageway between them and are arranged so that the grease will move through the inner
and outer seal.
Slide the bearing cover or drive end bracket off the shaft. Remove the capscrews from the pump bracket.
Slide the pump bracket off the shaft.
4. Press the shaft out toward the drive end. The pump end bearing remains in the frame and can now be removed. The
drive end bearing is still on the shaft. Remove the bearing lock nut and washer. Remove the bearing with a bearing
puller.
If the bearings are to be saved, keep them absolutely clean. If contaminated, wash only in clean fluid.
CAUTION: Never hammer the shaft or parts attached to the shaft or you will ruin both the shaft and
the bearings.
ASSEMBLING
1. Press the drive end bearings onto the shaft (back to back). Pressure should be applied to the inner race. Replace the
lock washer and locknut.
2. Press the pump end bearing into the frame. Place a shim on the bearing and install the pump bracket. Do not include
gasket.
3. Press the shaft in the drive end of the frame until the drive end bearing contacts the frame shoulder.
4. Remove the pump bracket and shim.
5. Install the pump end lip seal(s) in the bracket as shown on the parts page. Slide the pump bracket (with gasket for oil
lubed frames) over the shaft, taking care not to damage or fold the lip seal(s). Install and tighten the capscrews.
6. Install the lip seal(s) in the bearing cover or drive end bracket as shown on the parts page. Reinstall the shims in the
drive end of the frame (if present when disassembled). If new bearings, frame, bearing cover or drive end bracket are
being installed, insert shims to maintain 0.002” to 0.007” shaft endplay. Slide the bearing cover (with gasket for oil
lubed frames) or drive end bracket over the shaft. Install and tighten the capscrews.
7. Install the deflector and lubricate per page 3200-901 for grease lubed frames, or page 3200-902 for oil lubed frames.
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