Page 402 - Practical Machinery Management for Process Plants Major Process Equipment Maintenance and Repair

380 Major Process Equipnrent Maintenance and Repair

Table 8%
Guidelines for Selecting Lubricating Oils (See Note 1)
Pressure LubrSceHon
oil Rlng A B
Method d Luklcatlon Lubrication (SeeN-2) (SmNotoS)
Viscosity, Saybolt Universal
Seconds (Approx. SUS at 10O"p) 300 150 300
Approx. Metric Viscosity
(mm% at 40°C) 60 30 60
Viscosity, Saybolt Universal
Seconds (Approx. SUS at 210"p) 52 43 52
Approx. Metric Viscosity
(mm2/s at 99°C) 8 5 8
viscosity at operating
Temperature, sus Above 90 Above 90 Above 90
Minimum fish Mt 350°F 175°C 350°F 175°C 350°F 175°C
NQTES

1. These guidelines are not intended to restrict the oil supplier to a definite set of numbers
to which he must adhere. It is the intent to indicate the general service requirements
and leave the particular recommendations to the oil supplier.
2. Column "A" provides the general guidelines for turbines lubricated by a turbine shaft
driven pump or by the driven machine.
3. Column "B" shows the acceptable general guidelines for turbine8 lubricated from gear
oil systems.

the liner locating lugs are firmly seated in the bearing housing lo-
cating grooves.
4. Place the top bearing liners (16) over the shaft journals.
5. Place the oil rings (49) in the slotted guides in the top half bearing
liners.
6. A thin coat of oil resistant sealant may be applied to the bearing
cap flanges, if desired.
7. Replace the bearing caps. Be sure that the top bearing liner lociit-
ing lugs engage the corresponding locating grooves in the bearing
caps.

Caution: Bearing caps must seat firmly on the bearing housings.
Do not force the caps down by tightening the bolts.
Forcing the caps down will damage the bearing liners.