Goulds Pumps NM 3196 i-FRAME - IOM - Manual (Page 106)

Most pumps use Sunoco 2EP grease. High temperature units with a pumpage temperature greater than
350° F (177°C) use Mobil SCH32.
This table shows which brand of grease to use when lubricating the pump.
Table 22: Lubricating-grease requirements
Pumpage temperature less than
350°F (177°C)
Pumpage temperature greater
than 350°F (177°C)
NGLI consistency 2 3
Mobil Mobilux EP2 SCH32
Exxon Unirex N2 Unirex N3
Sunoco Mutipurpose 2EP N/A
SKF LGMT 2 LGMT 3
Convert from greased-for-life or regreaseable to oil-lubricated bearings
1. Remove the plug from the oil-return slot in the frame located under the radial bearing. Use this table
as a guide.
Pump model Action
STi Remove the epoxy from the return slot.
MTi Remove the set screw installed in the oil-return hole.
2. Remove the plug from the oil-return hole in the bearing housing (134).
3. Replace both bearings with unshielded, oil-lubricated bearings.
Table 23: Bearing types
Frame Inboard bearing
Outboard bearing
Double row Duplex
STi 6207 3306 7306
MTi 6309 3309 7309
4. Remove the grease fittings (193) to prevent accidental greasing.
Two plugs (408H) are required to replace the two grease fittings.
529
370F
241
408A
408L
319
228A
408W
113A 408W
372T
408N
408M
761B
Item Number Size Description Quantity
113 1/4"-18 NPT External hex/square head
pipe plug
2
Maintenance
104 Model NM 3196 i-FRAME Installation, Operation, and Maintenance Manual