Flowserve Worthington WXB User Manual download pdf (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.

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Flowserve Worthington WXB User Manual Page 22

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