18
Maintenance
7.3
Cleaning the operating fluid return line
Maintenance intervals depend on the respective process and are recommended as fol-
lows.
Check oil for condensate and clean the housing;
– each time the filter of the OME is changed.
Clean and replace possibly the sealing nipple.
– when there is a functional decline in the operating fluid return unit caused by wear
of the sealing nipple.
Fig. 7:
Cleaning the operating fluid return line
Carry out preliminary work as described before.
Unscrew the screw 48 and remove the clamping plate 36.
Remove floater 35 and cylinder bolt 38.
Check the sealed surface of sealing nipple 37; replace if necessary.
– When assembling lightly oil sealing nipple 37 and ensure the correct seating in the
housing 2.
Clean all parts and inspect for wear.
Assembling
is carried out in reverse order.
Check the pump's ultimate pressure to ensure a leakproof assembly of the operating
fluid return line;
– compare the measurement result with the previously determined ultimate pressure.
Fill in additional operating fluid in OME in order to ensure the return of operating fluid.
X
Detail X
35
35.1
38
37 3
100
4
63
142
14
2
2
27
27
25
45
35
36 48
25
28
63
63
67
67
25
28
63
28 67
3
2
Cover
3
Flat seal
4
Connection operating fluid return line
14
Filter element
25
Reducing piece
27
Operating fluid return line
28
Hollow screw
35
Floater
35.1 Floating support
36
Clamping plate
37
Sealing nipple
38
Cylinder bolt
45
Screws
48
Screw
63
O-ring
67
O-ring
100 Casing
142 Locking screw
