Nortrac XT20 Owner's Manual page 52

(7) Rinse the fuel tank and the filter in the fuel tank with solvent.
(8) Maintain the diesel engine according to the requirement of level 4 technical maintenance described in the
engine manual,
4.1.6
Maintenance for every 1600 hours
(1) Perform all technical maintenance after 1-hour running.
(2) Check engine to manufactures specifications.
(3) Change the lube oil in the front drive axle central drive and the final drive.
(4) Check for bearing noise in clutch and front-end.
(5) Check if the gap of the central drive gears and the contact footprint are normal; check the gap of the
bearings and the pre-tightening. Adjust if necessary.
(6) After maintenance, assembly and a short running-in time, check and adjust each mechanism.
4.1.7
Special maintenance in winter
When the air temperature is below freezing, along with completing "the technical maintenance per shift", the
following regulations shall be strictly abided by:
（1） Replace the lube oil and the fuel used for winter.
（2） Check strength of coolant, if necessary add anti-freeze to the coolant system as required.
（3） Before every shift, the engine should be started according to winter requirements.
（4）
It is recommended when the tractor is not in operation to park it in a shed that is warm and
protected from the elements.
4.1.8 Maintenance of the long-term stored tractors
If the tractor has been stored for less than one month, and the time does not exceed 100 hours since the
engine oil was replaced, special technical maintenance is not required. If the tractor has been stored
for more than one month, special technical maintenance should be performed according to Section 5-
Storage specified in this manual.
Maintenance Instruction
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