5-22 BA 5001-6001 US – Edition 1.2 * 6001b520.fm
Maintenance
Changing hydraulic oil
Important
Only change the hydraulic oil if it is warm (about 50 °C/122 °F).
Lower the dump bucket in center position before draining the oil (dumper in
straight-ahead position).
Environment
Dispose of the old hydraulic oil by an ecologically safe method.
☞ Open the drain plug to let the oil drain into a container.
☞ Check the hydraulic oil tank for contamination and clean if necessary.
☞ Replace the filter according to the maintenance specifications.
☞ Screw the drain plug back in correctly.
☞ Add clean hydraulic oil through the strainer – see Filling up hydraulic oil on page 5-21.
☞ Close the hydraulic oil tank correctly.
☞ Let the machine run at idling speed without load for some minutes.
Fouling indicator for hydraulic oil filter
A red indicator on the instrument panel monitors the filter.
Replace the filter:
• If the indicator comes on when the hydraulic oil is at operating temperature.
• According to the maintenance interval.
In cold weather the indicator can come on immediately when the engine is started. This is
caused by increased oil viscosity. In this case:
☞ Let the engine run at idling speed for about 2 minutes.
Replacing the hydraulic oil filter element
Proceed as follows:
☞ Stop the engine
☞ Open cover 1 by about 2 turns and wait until the oil level in the filter housing drops to
the oil level in the hydraulic oil tank.
☞ Open the cover completely and remove it.
☞ Pull filler pipe 2 upward with a slightly turning movement, together with filter element 3.
☞ Remove the filter element from the filler pipe and dispose of it.
☞ Slide the filler pipe onto the new filter element and insert it in the filter.
☞ Tighten the cover by hand.
Fig. 86: Fouling indicator for hydraulic oil filter
4
Fig. 88: Hydraulic return filter
1
2
3
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