Lubricating Oil Filter

08028-0D/H5250/94.08.12

The lubricating oil filter is dimensioned so that each of the two filter parts has sufficent capacity to treat the amount of lubricating oil delivered by the pump.

Thethree-wayvalvepositionedisdeterminingwhether the left hand or the right hand filter chamber is in operation, and also gives the possibility of having both filter chambers in operation simultaneously.

The three-way valve is marked with flow directions and the figure indicates the operation modes according to valve positions.

Three-way valve positions

Both filter camber in operation.

Fig 1. Three-way valve positions.

Service Procedure.

1)Turn the three-way valve, see fig 2, into the position setting the stand-by filter chamber in operation and the filter chamber requiring service out of operation.

2)Open the vent screw (5) on the top of the filter to get the pressure out of the filter half.

3)Open the drain plug (8) under the filter housing and drain off oil.

4)Filter housing cap is dismantled.

5)Remove the inner safety element. Clean the element with detergent. Check that it is intact.

6)Remove the outer element(s). Filter element is of disposable type. It change always to new original filter.

7)Clean the filter housing and the cap. Be careful of not to let the oil from the dirty side to go into the clean oil channel in the middle of bottom.

8)Check the seal on the bottom of the filter

Fig 2.

housing and in the cap. Change if needed.

9)Assemble the filter in opposite order.

10)Let the air valve be open and fill the filter

08028-0D/H5250/94.08.12

Fill-up valve positions

Fig 3. Fill-up valve position.

L23/30H

housing with oil by means of the slow fill-up valve (7) in position FILL, see fig 3. This valve is inside the three-way valve and by using it, the filling can be made so slowly that the pressure on the other part of the filter does not drop too much.

11)Close the vent screw (5) after the housing is filled up with oil.

12)Open the three-way valve (6) and close the fillup valve (7) by turning it to position CLOSED, see fig. 3.

13)The filter just serviced is now ready to be set in operation.

Inspect for oil leakages in order to ascertain all sealings to be tight.

08028-0D/H5250/94.08.12

L23/30H

The thermostatic valve cannot be adjusted and under normalworkingconditionsmaintenanceisnotrequired. However, in some cases it is necessary to replace the elements in the thermostatic valve.

1

2

3

5

4

1.Nut

2.Washer

3.Element

4.O-rings sealing

5.Gasket

Fig 1 Thermostatic valve

Replacement of elements:

1)Remove nuts (1) and washers (2), 4 or 6 pcs. See fig 1.

2)Disconnect upper and lower part of the housing.

3)Remove the assembled elements (3) and the elements O-ring sealing.

4)Remove the gaskets between the upper and lower part of the housing.

5)The upper and lower part of the housing are thoroughly cleaned inside and on the gasket surfaces.

6)The sealing rings (4) for the elements in the housing are replaced and lubricated with a thin layer of copaslip.

7)Remounttheassembledelementsinthehousing by wriggling these somewhat over side.

8)Upper and lower part of the housing are assembled with a new gasket (5), the nuts (1) are mounted and tightened "cross-wise".

Note:

After inspection or replacement of the elements the lub. oil temperature is checked to ensure that the elements are working correctly.