8-49 Periodic Maintenance and Adjustment
Vehicle Break-in Period
The break-in period for your new TRACTOR vehicle is
the first 25 hours of operation, or the
time it takes to use the first three tanks full of gasoline. No single action on your part is
as important as a proper break-in period. Careful treatment of a new engine and drive
components will result in more efficient performance and longer life for these
components. Perform the following procedures carefully.
CAUTION:
● Excessive heat build-up during the first
three hours of operation will damage close-fitted engine parts and drive
components. Do not operate at full throttle or high speeds during the first three
hours of use.
● Use of any engine oil not mentioned in this manual will cause severe damage to the
engine。
Engine Break-In
There is never a more important period in the life of your vehicle than the period
between zero and 25 hours.
For this reason, we ask that you carefully read the following material. Because the
engine is brand new, you must not put an excessive load on it for the first several hours
of running.
During the first 25 hours, the various parts in the engine wear and polish themselves to
the correct operating clearances.
During this period, prolonged full throttle operation or any condition which might result
in excessive engine heating must be avoided. However, momentary (2-3 seconds
maximum) full throttle operation under load does not harm the engine.
Each full throttle acceleration sequence should be followed with a substantial rest
period for the engine by cruising at lower r/min so the engine can rid itself of the
temporary build up of heat. If any abnormality is noticed during this period, consult a
dealer.
0-10 Hours:
Avoid continuous operation above half throttle. Allow a cooling off period of five to ten
minutes after every hour of operation. Vary the speed of the vehicle from time to time.
Do not operate it at one set throttle position.
10-25 Hours:
Avoid prolonged operation above 3/4 throttle. Rev the vehicle freely but do not use full
throttle at any time.
To Next Page
Loading...