Flowserve WUC Worthington - Manual (Page 27)

WUC USER INSTRUCTIONS ENGLISH - 07/14
Page 27 of 52
5.2.7 Hydrodynamic thrust bearing lubrication
If the pump is equipped with a hydrodynamic thrust
bearing refer to bearing manufacturer’s IOM for all
data related to the thrust bearing lubrication.
5.2.8 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
5.2.9 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.
5.2.10 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.
During operation the level will decrease
due to circulation of the oil through the bearings.
A too high oil level will result in higher bearing
temperatures and therefore poorer lubrication.
5.2.10.1 Adjusting of TRICO Constant Level
Oiler
If the pump is fitted with a Constant Level Oiler type
„TRICO“, the correct oil level has to be checked after
fitting the pump!
1 Trico-Oiler 2 Counter nut
3 Leveling screw 4 Fixing screw
a) To check quickly the correct oiler adjustment,
loosen the thumb screw and remove the
reservoir. Turn the adjusting nut until you reach
0.35 to 0.43 in. (9 to 11mm) distance from the top
of the adjusting nut to the centerline of the side
port.
b) Additionally you can check the correct oiler
adjustment by an oil sight glass (minimum oil
level is the middle of the oil sight glass).
c) After a correct oiler adjustment, reinstall the
reservoir and the oiler body and tighten the thumb
screw.