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Oil lubricated bearings – Goulds Pumps 3409 - IOM User Manual

Page 50

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OIL LUBRICATED BEARINGS

Figs. 30 and 31 show a grease lubricated bearing housing and an
oil lubricated bearing housing, respectively. The main
difference between the two is the grease fitting and the oil ring,
respectively.

To install the oil ring (114), place the oil ring in the bearing
housing directly under the pipe plug hole. Run a wire through
the pipe plug hole, around the oil ring and back through the pipe
plug hole once again. Tie the wire to a metal washer (being a
larger diameter than the hole) causing the oil ring to become
tight against the inside top of the bearing housing. Then
assemble the bearing housing over the bearing. Untie the wire
and the oil ring will drop down onto the shaft. Check the
position of the oil ring through the pipe plug hole at the top of
the bearing housing. The oil ring must be resting on the shaft
for correct operation. A screwdriver can be used to correct the
oil ring position, if required.

The following steps describe how to change the oil for oil
lubricating bearings. Fig. 32 shows a typical oiler assembly.

1.

Remove the vent assembly (113A & 551F) from the top
of the bearing housing (134).

2.

Remove the pipe plug (358V) from the bottom of the
bearing housing (134).

3.

Unscrew the reservoir (251) and remove.

4.

Flush the oiler (251) and bearing housing (134) with a
light grade of oil. Flush until all foreign particles have
been removed.

5.

Screw the pipe plug (358V) and vent assembly (113A &
551F) back into place.

6.

Fill the reservoir (251) with a good grade of filtered
mineral oil. Refer to oil lubrication instructions given
previously in this manual for type of oil.

NOTE: You must fill through Trico reservoir.

7.

Place thumb over reservoir spout, invert and place
reservoir (251) on lower casting while removing thumb.
Allow reservoir to empty, filling the bearing housing
(134). Several fillings of the reservoir may be required
before the actual level is reached. When the oil level is
reached, no more oil will run out of the reservoir.

8.

When reservoir stays full, screw reservoir back into lower
casting.

A periodic filling of the reservoir is required. When the oil
becomes dirty, repeat steps 1 through 8.

50

3409 IOM 11/04

Fig. 31

Fig. 30

Fig. 32