Flowserve Worthington WXB - Manual (Page 22)

WXB USER INSTRUCTIONS ENGLISH - 07/14
Page 22 of 51
5.2.10 Lubrication
The bearing housing shall be filled with proper
lubricating oil prior to start up. If the pump will be
started after a longer storage period, the bearing
housing should be first flushed and cleaned with
gasoline. It is not necessary to remove the
preservation oil as this will mix up thoroughly with the
lubrication oil.
Lubrication is provided by the pumping effect of the
rotating ball bearings. Maintaining the correct oil level
(middle of the oil sight glass) ensures that the lower
ball bearing is covered with oil.
For recommended lubricating oils refer to the
lubrication table 5.2.6
5.2.11 Oil change
After first start up, the oil shall be changed after 200
service hours.
Every further oil change shall take place after about
2000 service hours or at least every 6 month.
To change the oil, use the following procedure:
a) Remove the reservoir (for some type of oilers you
must loose a fixing screw or lock nut, refer to section
5.2.3 Oil level).
b) Open the oil drain on the bearing housing to remove
the oil.
c) Close the oil drain and fill in Oil through the oiler until
the oil level reaches the bottom of the sight glass.
d) Fill the reservoir and put it quickly to the body of the
oiler. Observe the level in the reservoir. It will
decrease until the required oil level is reached
(middle of the sight glass). Ensure that enough oil
remains in the reservoir.
e) If necessary, the oil level can be adjusted by refering
to section 5.2.3 Oil level.
5.2.12 Oil level
The correct oil level is in the middle of the oil sight glass
and shall be checked when pump is not in operation.
Periodically check if the lubricating oil is mixed with any
condensed water. Careful opening of the oil drain
during a stop of the pump will show any water.
Use a spirit level to check the horizontal
alignment of the bearing housing.
A too high oil level will result in higher bearing
temperatures and therefore poorer lubrication.
5.2.12.1 Adjusting of DENCO Constant Level Oiler
If the pump is fitted with a Constant Level Oiler type
„DENCO“, the correct oil level has to be checked after
fitting the pump! Dimension a is the distance from the
centerline of the pump to the minimum oil level (marks
at the bearing housing).
1 Denco Oiler 2 lock nut 3 adjusting sleeve
4 oil sight glass 5 oil drain 6 distance sleeve
a) The oil level may be „fine tuned“ by turning the
adjusting sleeve (3) and finally locked into
position by tightening the lock nut (2). To
replenish, the reservoir and adaptor (1) may be
removed by sliding it out of the body, removing
the adaptor and fill the reservoir. Fully reinserting
the adaptor / reservoir into the body ensures the
previously adjusted oil level is maintained. The
oiler is equipped with an overflow tube to avoid a
rise of the oil level. This is necessary to maintain
a constant level in an oil bath lubrication system,
where an oil mist is used as primary lubrication.
The oiler is pre adjusted with the distance
sleeve [6], therefore no adjustment is required
anymore.
b) Additionally you can check the correct oiler
adjustment by an oil sight glass (correct oil level
is the middle of the oil sight glass).
Refer to nameplate or part list, to reading
the correct frame size.