5.7.4 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.
•
Fill the bearing frame with oil:
If...
Then...
You do not
have the con-
stant level oiler
option
Pour oil in the filler connection located on top of the bearing frame until the level
reaches the mark in the middle of the sight glass. Use a high-quality turbine type
oil with rust and oxidation inhibitors.
You do have
the constant
level oiler op-
tion
The Watchdog
®
oiler system was designed for use on closed system environ-
ments. The Inpro VBXX-D labyrinth seals used on these pumps can create a sit-
uation where unequal pressure causes the oiler to overfill. This might occur during
intermittent operation. In order to eliminate the pressure differential that creates
this problem, Watchdog supplies a breather with a filter.
If plant environments or requirements are not suitable for vented bearing frames,
then do not use the Watchdog oiler.
Install the Watchdog oiler in the connection for the sight glass. The oiler does not
require any setting dimensions.
1
1.
Control point that determines the level of the oil in the oiler
5.7.5 Greased-for-life bearing lubrication
The bearing manufacturer fills greased-for-life bearings with grease and seals them at the factory. You do
not need to lubricate or seal these bearings. Refer to the Maintenance chapter for re-greasing and main-
tenance procedures for these bearings.
5.8 Shaft-sealing options
In most cases, the manufacturer seals the shaft before shipping the pump. If your pump does not have a
sealed shaft, see the Shaft-seal maintenance section in the Maintenance chapter.
This model uses these types of shaft seals:
•
Cartridge mechanical seal
•
Conventional inside-component mechanical seal
•
Dynamic seal
•
Packed-stuffing-box option
5.8 Shaft-sealing options
Models 3180, 3181, 3185, and 3186 Installation, Operation, and Maintenance Manual
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