Goulds Pumps 3700 Installation, Operation And Maintenance Manual page 53

Oil volumes
Oil volume requirements for ball/ball and sleeve/ball bearings
This table shows the required amount of oil for oil-lubricated bearings.
All frames in this table use a Watchdog Oiler, which has a capacity of 118ml | 4 oz.
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
Bearing temperatures exceed 82°C | 180°F
Pumped-fluid temperatures are extreme
Acceptable oil for lubricating bearings
Acceptable lubricants
Brand
Exxon
Mobil
Sunoco
Royal Purple
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 is inside the pump and
any auxiliary equipment. Failure to do so can cause liquid to freeze and damage the pump.
Ring oil-lubricated pumps are supplied with an oiler that maintains a constant oil level in the
bearing housing.
1. Fill the oil reservoir in the bearing frame:
a) Fill the bearing chamber through the main body of the Watchdog until it reaches the
b) Fill the watchdog reservoir using a funnel.
c) Verify o-ring is on the Watchdog oiler spout.
Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance
Manual
Frame
SA
SX
MA
MX, LA
LX, XLA
XLX, XXL
optimum fluid level visible in the bullseye sight.
Commissioning, Startup, Operation, and Shutdown
Frame oil volume
milliliters
600
1115
950
1385
2120
2625
Oil requirement
Use ISO viscosity grade 100. Bearing temperatures
are generally about 11°C | 20°F higher than bear-
ing-housing outer surface temperatures.
Refer to the factory or a lubrication expert.
Lubricant type
Teresstic EP 68
DTE Heavy Medium
Sunvis 968
SYNFILM ISO VG 68 Synthetic Oil
ounces
20
38
32
47
72
89
51