5.4.2.2 Lubricating-oil requirements
Oil quality requirements
Use a high-quality turbine oil with rust and oxidation inhibitors with rated viscosity shown below at 38°C |
100°F.
Oil requirements based on temperature
For the majority of operating conditions, bearing temperatures run between 49°C | 120°F and 82°C | 180°F,
and you can use an oil of ISO viscosity grade 68 at 38°C | 100°F. If temperatures exceed 82°C | 180°F, refer to
the table for temperature requirements.
Temperature
Oil requirement
Bearing temperatures exceed 82°C |
180°F
Use ISO viscosity grade 100. Bearing temperatures are generally about 11°C
| 20°F higher than bearing-housing outer surface temperatures.
Pumped-fluid temperatures are ex-
treme
Refer to the factory or a lubrication expert.
5.4.2.3 Acceptable oil for lubricating bearings
Acceptable lubricants
Table 6: Acceptable lubricants
Brand
Lubricant type
Exxon
ISO VG 68
Mobil
Sunoco
Royal Purple
5.4.2.4 Lubricate the bearings with oil
WARNING:
Risk of explosive hazard and premature failure from sparks and heat generation.
Ensure bearings are properly lubricated prior to startup.
NOTICE:
Do not expose an idle pump to freezing conditions. Drain all liquid that will freeze that is inside
the pump and any auxiliary equipment. Failure to do so can cause liquid to freeze and damage
the pump. Note that different liquids freeze at different temperatures. Some pump designs do
not drain completely and may require flushing with a liquid that doesn't freeze.
1.
Fill the oil reservoir in the bearing frame:
a) Fill the bearing chamber through the main body of the Watchdog or through the oil filter open-
ing until it reaches the optimum fluid level visible in the bullseye sight.
b) Fill the watchdog reservoir using a funnel.
c)
Verify o-ring is on the Watchdog oiler spout.
5.4 Couple the pump and driver
Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual
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