23
failures.
3.1
Running-in of engine without load
3.1.1
Please read carefully the engine operation manual before starting the engine.
3.1.2
After starting, let the engine run at the medium or low speed, and then gradually speed it up
after water and oil temperature rises. It is to be avoided to run the engine at high speed right
after starting. Check whether there is any water, oil and air leakage and whether all
instruments and indicators work well while the engine runs for heating-up.
3.1.3
Let the engine run for 5 minutes at maximum speed and observe engine’s working status,
the total running-in time of engine without load needs 20
～
30 minutes.
3.2
Running-in of the tractor without load
3.2.1
Drive the tractor away from rest according to regulations set forth in this operation manual.
3.2.2
Run the tractor at every forward and reverse gear for half an hour respectively. And do the
steering operation at medium and low speeds, properly use either LH brake or RH brake in
concert with the steering operation, try emergency braking when tractor running at gear VII
or VIII with limited throttle (and engage the front wheel drive axle if the tractor is a
four-wheel drive one).
3.2.3
Engage the PTO shaft, and operate the hydraulic lifting system repeatedly so as to do the
running-in of hydraulic system and PTO shaft.
3.3
Running-in of the tractor with load
3.3.1 When operating the tractor with load for the running-in, the load must be added from the
light to heavy and gears be changed gradually from the low to high, meanwhile, do steering
operation time and again, the time period for running-in with load amounts to 50 hours in
total. The running-in criteria are as follows:
Running-in time for every gear (hr.)
Runnin
g-in
stage
Hitching
force
(kg)
Ⅲ
Ⅳ
Ⅴ
Ⅵ
Ⅶ
Ⅷ
Total time at
various stage
(hr.)
1
130
2
2
4
4
4
4
20
2
250
2
2
5
5
14
3
400
2
2
6
6
16
Points for attention:
Engage the front drive axle for the running-in at every gear except
Gear
Ⅷ
if the tractor is a four-wheel drive one.
3.3.2
Running-in of hydraulic lift system with load is to be done with a plow mounted, which
should be done before the running-in of transmission system, repeat the lift and release
operation for at least 20 times while engine is working at the rated speed.
3.3.3
If the above running-in condition could not be satisfied, then light-load operation can be
used as a substitute. For example, shallow-tillage in the even soil with low resistance.
Points for attention:
Observe the working conditions of all the parts and components in every stage of the
running-in. If any abnormal condition occurs in the running-in, fix it up immediately. While
running in the transmission system, PTO shaft should be “disengaged”.
3.4 Work after the running-in
3.4.1 Drain off hot lubricant in all the sumps of chassis immediately, add some clean diesel oil,
