Yanmar YM240 - Operating the Engine; Pre-Starting Inspection

4. BREAK- IN PERIOD
14- 11 ENGINE BREAK-IN
The engine is ready for normal operation.
How-
ever. you should be extra cautious during the first
100
hours.
1) Avoid unnecessary engine idling. If tractor
will
be idle longer than five minutes, stop
the engine.
2) Watch coolant temperature indicator closely.
If lamp glows, shift to
a lower gear or reduce
load. Unless temperature quickly drops,
stop the engine and determine the cause.
3) Check engine oil and coolant levels more
frequently. Watch for any signs of leaks.
4) Follow break-in lubrication instructions on
page
56.
5) Until you become thoroughly familiar with
the sound and feel of your new tractor, stay
extra attentive and alert.
6) Be sure to change the engine crankcase oil
after the first 20 hours operation. After the
first 50 hours, replace the engine oil and
filter element.
Coolant temperature
indicetar lhm~
Ideal conditions for breaking in a tractor engine
would require operating the tractor at full engine
speed under
75% of full load for approximately
the first 100 hours.