Goulds Pumps 3180-86 - IOM - Manual (Page 66)

Brand Lubricant type
Gulf Harmony 68
Lubricating-grease requirements
Precautions
NOTICE:
• Never mix greases of different consistencies (NLGI 1 or 3 with NLGI 2) or with different thickeners.
For example, never mix a lithium-based grease with a polyurea-based grease. Doing so may result in
decreased performance.
• Remove the bearings and old grease if you need to change the grease type or consistency. Failure to
do so may result in equipment damage or decreased performance.
Bearing temperature
Bearing temperatures are generally about 45°F (25°C) greater than bearing-housing outer surface
temperatures.
This table shows the type of grease required for the operating temperature of the pump.
Bearing temperature Type of grease
5°F to 230°F (-15°C to 110°C) Use a lithium-based mineral-oil grease with a
consistency of NLGI 2.
Exceed 230°F (110°C) Use a high-temperature grease. Mineral-oil greases
should have oxidation stabilizers and a consistency
of NGLI 3.
Grease recommendations based on temperature
This table shows which brand of grease to use when lubricating the pump.
Brand When temperature of pumped
fluid is less than 230°F (110°C)
– NLGI consistency 2
When temperature of pumped
fluid is greater than230°F
(110°C) – NLGI consistency 3
Mobil Mobilux EP2 N/A
Exxon Unirex N2 Unirex N3
Sunoco Mutipurpose 2EP N/A
SKF LGMT 2 LGMT 3
Texaco Multifak 2 N/A
Shell Alvania 2 EP Grease 2 N/A
Grease amounts
Frame Initial grease in ounces (grams) Regrease 1 in ounces (grams)
Thrust (angular
contact)
Radial (cylindrical
roller)
Thrust (angular
contact)
Radial (cylindrical
roller)
S 7 (185) 6 (165) 2.5 (70.0) 2.5 (70.0)
M 10 (290) 7 (180) 4 (115) 2.5 (70.0)
L 17 (475) 10 (280) 7 (200) 4 (115)
XL 28 (800) 16 (450) 12 (345) 6.5 (190.0)
1 The regrease amount is based on purging half of the old grease from the housing reservoir. Not available
on the XL1, XL2-S, and XL2 sizes.
Maintenance
64 Models 3180, 3181, 3185, and 3186 Installation, Operation, and Maintenance Manual