Flowserve IJ, Installation Operation & Maintenance

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IJ PUMP OPERATION AND MAINTENANCE MANUAL
BO2660-01 3-28
shut down auxiliary lube oil pump; then clean and reinstall filter. Restart auxiliary lube
oil pump and continue flush.
NOTE
To prevent an accumulation of moisture from condensation
when heated lube oil is used, allow lube oil to cool gradually
during last hour or two of the cycle.
d. Shut down auxiliary lube oil pump at end of 20-hour cycle.
5. Perform final phase of flushing cycle as follows:
a. Clean and reinstall filter.
b. Start auxiliary lube oil pump and circulate lube oil for another 4 hours, all the while
tapping the entire length of piping.
c. Shutdown auxiliary lube oil pump and recheck filter. If filter is even partially clogged
from any matter, clean and reinstall filter and repeat step b.
d. Repeat steps b and c until filter is clear of sludge, scale and the like, then proceed to step
6.
6. Drain lube oil piping reservoir and again clean reservoir according to step 2 above. To
prevent entry of any dirt or foreign matter in reservoir, install cover when cleaning is
complete.
7. Using petroleum base solvent such as kerosene or naphtha and clean cloth, swab inside of
lowest piping and piping with low spots.
8. Connect piping at all points.
9. Remove upper halves of bearing housing and install inboard journal, outboard journal, and
thrust bearings according to instructions under PUMP ASSEMBLY: BEARINGS.
10. Fill lube oil system to required level as instructed in STARTUP. Run auxiliary lube oil pump
until lines are full and recheck reservoir.
3.5.1.2 Flushing Lube Oil System Without Using Auxiliary Lube Oil Pump
The following flushing procedure applies where an auxiliary lube oil pump is not available for us in
flushing the lube oil system. For illustrations of piping and parts which are referred to in the
procedure, see LUBE OIL PIPING and ASSEMBLY drawings in the back of this manual.
1. See that piping is disconnected from reservoir, bearing housings, cooler, and filter; then tap
piping until all slag and scale loosens.
2. Using a clean swab soaked in a petroleum base solvent such as kerosene or naphtha, swab
inside of each piping section; then follow up with a clean dry swab. Verify that piping is free
of foreign material.
3. Connect piping at all points.
4. Operate pump (see STARTUP and OPERATION) for approximately 2 hours and during this
time, periodically check differential pressure for an indication of severe increase in
differential pressure. Should such increase occur, immediately shut down pump (see
STOPPING) and check filter. If necessary, clean filter and reinstall it; then complete run.