Operation; Start-Up; Check List - Goulds Pumps 3935 Installation, Operation And Maintenance Instructions

Operation

Operation

Start-up

Check List

1. Lubrication - J and S Frames
2. Lubrication M, L, X and Y Frames
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J Frame - J frame pumps have a greased-for-life ball bearing. No additional lubrication is
required.
S Frame - S frame pumps have ball bearings which are greased at the factory.
Bearings should be regreased every 2000-3000 hours (3-4 months).
To regrease bearings:
1. Remove plug on top of bearing frame. Screw in Alemite grease fitting included in the
box fittings, shipped with the pump.
2. Add grease while turning shaft by hand until old grease is forced out of grease relief
fitting at bottom of bearing cap and fresh grease appears.
3. Remove grease fitting and reinstall plug.
M, L, X and Y frames have flood oil lubricated bearings. The bearings are not lubricated at
the factory. A constant level oiler, #5 TRIGO, is packed with the pump.
a) Before installing the oiler on the bearing frame, check the oiler adjustment. The setting
dimension 14.3 mm | 0.56" is illustrated in Figure: Dimensional checks.
b) Remove the small plastic plug from the large pipe plug on the left side of frame as
viewed from the motor end of the pump.
NOTICE: The Y frame has a ¼-18 NPT tapped hole.
c) The nipple-elbow assembly is assembled finger-tight at the factory. Beforeinstalling it
on pump, the threaded connections should be made up with pipe sealant.
NOTICE: The oiler may be installed on the right side of the pump (viewed from motor
end) by moving the 2"· 11½ NPT plug with ¼"-18 NPT tapped hole to right side and
assembling as above.
Model 3935 Installation, Operation and Maintenance Instructions