BA 1001/1501/2001 us – Edition 3.3 * 12001b520.fm 5-23
Maintenance
Changing hydraulic oil
Only change the hydraulic oil if it is warm (about 50 °C/122 °F).
Lower the skip in center position before draining the oil (dumper in straight-
ahead position).
☞Open the drain plug to let the oil drain into a container
☞Check the hydraulic oil reservoir for contamination and clean it if necessary
☞Replace the filter according to the maintenance specifications
☞Screw the drain plug back in correctly
☞Add clean hydraulic oil through the screen
– see Adding hydraulic oil on page 5-22
☞Close the hydraulic oil reservoir correctly
☞Let the machine run at idling speed without load for some minutes
Dirt indicator for hydraulic oil filter
A red indicator light on the instrument panel monitors the filter.
Replace the filter:
• If the indicator light illuminates when the hydraulic oil is at operating temperature
• According to the maintenance interval
In cold weather the indicator light can illuminate 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 reservoir
☞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. 99: Dirt indicator for hydraulic oil filter
12
Fig. 100: Hydraulic return filter
1
2
3
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