404G2 SERIES TRACTOR OPERATION MANUAL
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3.3 Running in of hydraulic hitch system
1. Attach ballast or implement whose weight is 400Kg to 3 point hitch system. Push
the lifting mechanism control to lowered position.
2. Run the engine in low speed for 10 min and in high speed for 10 min.
3. Put the throttle handle of engine into high position, operate lifting mechanism
control to make the ballast or implement moving from highest position to lowest
position for 10 minutes, at least 20 times
4. If hydraulic system operate hardly and lift or low hardly, check trouble immediately.
3.4 Running-in of hydraulic steering system
(1)Park the tractor on the flat road.
(2) Start the engine , let the engine work in low speed, mid speed and high speed. Turn
the steering wheel left and right steady in proper order to do ten times pivot steering.
Check whether the steering is flexible and portable. Check whether the steering system
has oil leak, oil infiltrate and abnormal noise. During the Running-in of hydraulic
steering system, the malfunction should be eliminated in time.
(3) After the engine shutdown, turn the steering left and right slowly , observe the
follow-up condition of tractor front wheel steering to check whether it can realize the
manpower turn .When turning the steering ,do not apply impact force to the steering
wheel.
3.5 Running in of PTO
Put the throttle handle of engine into medium position, the engine will run at medium
speed. Let the PTO shaft running-in for 5 minutes respectively at 540rpm speed and
1000rpm speed by shifting PTO lever to “540” or “1000” position. Check if it is
abnormal and must make PTO shaft at Netural position after running-in.
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