four fixing screws on the filter cover. The cover
is spring loaded, which means the screws shall
be unscrewed evenly. Remove the fixing nut
at the bottom of the filter element and change
the filter cartridge (fig. 47).
Use only genuine filters and oil types in compli-
ance with the oil table to guarantee perfect
functioning. Make sure there are no impurities
in the oil or the funnel.
After the oil change let the engine idle for
approx. 30 minutes, during which time hydrau-
lics must not be used. During this period the
oil circulates through the filter several times
and any impurities in the oil are filtered off.
Monitor the oil level and check for any leakage
in the filter.
There is a glass gauge on the side of the oil tank to monitor the oil level. The oil level shall be
visible in the gauge window. Add oil, when necessary.
REFILL ALWAYS THROUGH THE RETURN FILTER PLUG!
At the base of the oil filter there is an alarm switch to indicate pressure loss through
the filter. In case the alarm light is on in the cab and the oil is in its operating tempe-
rature, the filter cartridge is clogged and shall be replaced.
If hydraulic oil becomes over-heated
The temperature of the hydraulic oil should not exceed 70 degrees C. A temperature increase
of 10 degrees cuts the oil lifetime in half. When the signal light comes on, the temperature of
the hydraulic oil is 90 degrees. In this case you should wait long enough to let the temperature
decrease. The engine can be kept running, but unloaded. Find out the reason for the excessive oil
temperature. The most common reason is blockage in the radiator and its protective screens.
4. Checking of the functions of hydraulic signal lights
Earth the sensor cables of suction, pressure and return filters. The signal lights on the
instrument panel should come on.
5. Checking condition of hydraulic hoses
Check The condition of hoses. Replace worn out and leaking hoses to New. Replace all hoses with
new ones at least once in 15 years.
SERVICE MEASURES EVERY 2000 OPERATING HOURS
1. Inspect and clean the diesel engine injectors (EEM3 service tool)
SERVICE MEASURES EVERY 4000 OPERATING HOURS
1. Check compressor clearances / check the cleanliness of the intercooler element
For detailed instructions, see the SisuDiesel manual.
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General