5-14 BA 348-01 * 2.0 * 34801b510.fm
5 Maintenance
Monitoring the hydraulic oil and the return filter
On the instrument panel, the red indicator light 36 monitors return pressure and the return
filter, and indicator light 37 monitors oil temperature.
Indicator light 36 on the indicating instrument illuminates if the resistance of the
oil flow in the filter is too high
☞Replace the filter element
☞Drain the hydraulic oil in case of increased contamination, however after
1500 operating hours at the latest or once a year
If indicator light 37 (overheating) illuminates on the instrument panel:
☞Check the hydraulic oil level (not enough oil in the reservoir)
☞Replace the filter element (highly contaminated filter)
☞The filter element and the hydraulic oil may be replaced by an authorized
service centre only!
Indicator light 36 on the indicating instrument can illuminate in cold weather
immediately after starting the engine. This is caused by increased oil viscosity.
In this case:
• Set engine speed so that indicator light 36 on the indicating instrument
goes out
• Bear in mind the instructions concerning warmup – see chapter 3 “Starting
the engine” on page 3-36
Fig. 175 : Hydraulic oil indicator lights
37
36
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