7 CARE AND MAINTENANCE
7.68 MHL380 D
â–º
Check the O-ring (221/4) and replace if
necessary.
â–º
Insert the new return filter into the hydraulic
tank with the O-ring.
â–º
Oil the cover seal slightly and place the
cover of the return filter on the hydraulic
tank with the O-ring.
â–º
Check the distance between the hydraulic
tank and the cover: The distance should be
about 2 mm with the cover screws loos-
ened.
â–º
If necessary, adjust the distance using the
three M8 set screws (221), and lock.
â–º
Tighten the M10 cover nuts. As you do so,
make certain the O-ring is correctly placed
between the cover and the hydraulic tank.
â–º
Check the filter for leaks.
7.9.13.4 Hydraulic oil – ventilation filter
h Replace as described in chapter 7.8.3
Maintenance and inspection plan.
Remove the breather (219/1), replace it with a
new filter and tighten such that it is hand-tight.
Replace the ventilation filter if it has become
contaminated by hydraulic fluid mist.
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