Goulds Pumps 3610 - IOM - Manual (Page 42)

Commissioning, Startup, Operation, and Shutdown
2. Check that the oil level is correct. The correct oil level is centered in the bullseye sight
glass, when the pump is not in operation. During operation, bullseye sight gives a false oil
level reading. Shown is general schematic. Oil level is below outer race of bearing.
1. Plug
2. Reservoir
3. Main body
Lubricate the bearings with pure or purge-oil mist (optional)
NOTICE:
Do not expose an idle pump to freezing conditions. Drain all liquid that is inside the pump and
the cooling coils. Failure to do so can cause liquid to freeze and damage the pump.
Before lubricating with purge-oil mist, make sure that the bearing frame is properly lubricated.
See Lubricate the bearings with oil.
The oil requirements for ring-oil-lubricated bearings also apply to oil-mist-lubricated bearings.
NOTICE:
Oil mist is recommended for use on ball bearing arrangements only. See Convert to oil-mist
lubrication.
1. Prepare the oil-mist generator according to the manufacturer's instructions.
2. Connect the oil-mist supply lines to the oil-ring inspection plug connections.
Note that only one of the two connection ports in the radial bearing housing (134) is used
(immediately above the single row radial bearing). You must connect to both connections
on the thrust bearing housing, because there are two rows of bearings.
Oil-mist connections
A. Radial and thrust
B. Thrust only
C. Radial and thrust drain
3. For pure-oil mist, connect the drain lines to the outlet connections.
This is not required for purge-oil mist.
Convert to oil-mist lubrication
NOTICE:
Make sure that pipe threads are clean and apply thread sealant to plugs and fittings.
You can convert from ring-oil lubrication to oil-mist lubrication in pumps with ball bearing
construction. The radial and thrust end bearing housings (134) have pre-drilled connections for
oil misting:
• 1/4 in. NPT connection on the inboard side of the housing
• 1/2 in. NPT connection on the outboard side
Purge-oil mist lubrication provides intermittent oil mist in the bearing housing. This system uses
the oil sump in the housing, and requires the oil ring and the constant-level oiler.
40 Installation, Operation, and Maintenance Manual