ITT GOULDS PUMPS 3316, Инструкции по установке, эксплуатации и обслуживанию

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7 Care and Maintenance
7.1 Lubrication - bearings
1. Keep oiler bottle filled with correct grade of oil. (See 3.1 Pump bearings on page 18 ). Oiler will
maintain constant oil level in bearing housing.
2. Under normal operating conditions, a good grade of oil will be suitable for 6 months to one year
between changes, as long as it is free from contaminants. A small sample of oil should be
drained from the bearing housing periodically. Any cloudiness, turbidity, discoloration or presence
of solids is evidence of contamination, and the oil should be changed immediately.
3. If oiler adjustment is lost or disturbed, reset as directed in 3.1 Pump bearings on page 18 .
4. Bearing Temperatures - All bearings operate at some temperature above that of the surrounding
atmosphere, unless cooled. Heat is generated within the bearing due to rolling friction, and the
drag of the race.
Do not use the human hand as a thermometer. A temperature which feels "hot" varies from 120° to
130°F. depending on the individual. Above this temperature the human hand is worthless in estimating
temperature. Oil lubricated ball bearings can be operated safely at temperatures up to at least 180°F.
Bearing temperatures up to 160°F. are normal. Determine the temperature accurately by placing a con-
tact type thermometer against the bearing housing. This temperature should be recorded in a convenient
location. A stable temperature is an indication of normal operation.
A sudden increase in temperature is an indication of danger and a signal to investigate. Check to see
that oil is of proper viscosity and that oil level is neither too high nor too low. The unit should also be
checked for unstable hydraulic operation and unnecessary loads, such as coupling misalignment.
Occasionally, when the pumps are first started, the bearings seem to run extremely hot. This high tem-
perature is frequently caused by oil seals, not the bearings. As soon as the seals are seated, the temper-
ature will drop to a normal level.
7.2 Lubrication - driver and coupling
Follow manufacturer's recommendations.
7.3 Sectional view
See 7.6 Sectional View on page 34 .
7.4 Repacking stuffing boxes
1. To remove stuffing box gland assembly: Back off nuts (355). Slip the cupped washers (354) from
bosses on gland, lift the upper gland half out of stuffing box and remove the gland bolts and lower
gland half. This now affords unobstructed access to the stuffing box for repacking.
2. Remove the rings of packing with the aid of a packing hook.
3. Remove split lantern ring by inserting a wire hook in the slots in the outer edge of the ring and pull-
ing ring from box.
4. Remove all foreign matter from stuffing box.
5. An alternate method of removing the packing and lantern ring is as follows: Remove the upper half
casing. See above Steps: 1, 2, 4, 5. Remove the packing and lantern ring from the stuffing box. This
method permits the inspection of the shaft sleeve and the stuffing box bushing. If the shaft sleeves
are found to be deeply grooved in the packing area, they should be replaced as it is only possible
for the packing to do an efficient job when the sleeve surface is relatively smooth.
7 Care and Maintenance
3316 Installation, Operation and Maintenance Instructions 31