Operation Description
40
2.17
Tractor Break-in
Before the tractor is put into service, it should run for a certain period under the specified conditions of
lubrication, rotational speed and load, and at the same time have any necessary inspection, adjustments and
maintenance, to normalize its technical state; a process called break-in.
If the break-in procedure is not
followed the warranty may be void.
2.17.1 Break-in Preparations
Check and tighten all accessible fasteners.
Put grease into every grease fitting.
Check the diesel engine, gearbox, rear axle, auxiliary box, final drive and front drive axle (4 -wheel
drive tractor), steering gear, and hydraulic lifter oil levels. Refill as necessary.
Fill the fuel tank.
Check the radiator and add a 50/50 water/antifreeze mixture if the coolant is low.
Check the tire pressure. Add air if necessary.
Engage the 4-wheel drive lever (4-wheel drive tractor).
2.17.2 Break-in at Idle
Implement a 15 minute idle break-in for the engine. After starting the engine in the sequence specified in the
Diesel Engine Use and Maintenance Manual
,
run the engine in three stages, i.e. low speed (the up position of the
accelerator), then medium speed (the medium position of the accelerator) and finally high speed (the down
position of the accelerator). Do each for 5 minutes. The throttle control handle can be used to set a constant
engine speed at all three stages. During the engine idle break-in, check the state of the engine and the hydraulic
oil pump carefully to determine whether there are any abnormal sounds or any leakage of water, oil or air.
Make sure that the instruments are functioning normally. If any abnormalities are found, immediately stop the
tractor to eliminate the faults, and then continue the break-in process.
2.17.3 PTO Shaft Break-in
When the diesel engine is running at the mid throttle setting, set the power takeoff (PTO) shaft speed
selector on high then low and run in for 5 minutes in each setting. Then set the PTO speed selector
to neutral.
2.17.4 Hydraulic System Break-in
After the farm implement is mounted on the 3-point lift, operate the lifter handle at the maximum engine.