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4) Fill engine oil through filler filter if necessary. Make sure to use recommended oil.
Replace engine oil
The engine oil and oil filter must be replaced after the first 50 hours’ operation.
After first replacement, please carry out replacement as per <YANMAR operation and
maintenance manual>.
Replace engine oil filter…every 500 hours
Steps of replacing engine oil and filter
1) Warm up engine oil before start, but don’t overheat.
2) Park the excavator on a level ground.
3) Lower the bucket to ground.
4) Run engine idle for 5 minutes.
5) Shut off engine, and take out key switch.
6) Pull the pilot control lever to lock position.
7) Take off the outlet plug, pour the oil into a 10L container through a clean cloth.
8) After oil is vented, check whether there is metallic chipping on cloth.
9) Fit and screw down outlet plug.
10) Clean surrounding area of engine oil filter seat. Turn the filter cartridge anti-clockwise to
remove old seals.
11) Clean sealed washer surface of filter seat.
12) Wipe clean oil on the seals of new filter.
13) Fit new filter, turn filter clockwise until the washer touch interface. Ensure not to damage
washer when fitting filter.
14) Screw down engine oil filter. Remember not to make it too tight to prevent screw thread
distortion or filter core seals damaging.
15) Open oil filter cover, and fill recommended oil in engine 15 minutes later, check whether the
oil level lies within the marking range or not.
16) Fit filler cap.
17) Start engine. Run at low revs for 5 minutes.
The engine oil may be very hot,
please be cautious of scalding.
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