ploughing
When a walk-behind tractor pulls a one-way double-share plow, one side of the drive wheel is on the uncultivated land, and the other side of the drive wheel is in the furrow. The adhesion coefficients between the two wheels and the ground are different, and the slip rates are different. Deviating in one direction. For Dongfeng-12 walking tractor, the following adjustments can be made to solve it: adjust the gap value (swing gap) between the left and right adjustment screws on the traction frame and the middle connecting frame, and adjust the 681-type one-way double plough to 1.5mm Left and right, 1LS-220 type and 701 type one-way double plough is adjusted to about 5 mm. During the ploughing process, if the tractor still deviates to the right, loosen the two fastening screws, shorten the protruding part of the left adjustment screw, and lengthen the protruding part of the right screw. Until the handrail frame unit is released, it can travel normally along the ditch wall.
Rotary tillage
Possible causes of deflection during rotary tillage: The tail wheel is deformed again, the tail wheel shaft is not properly assembled in the fork, etc. The tail wheel is deflected: The bearing on the tail wheel shaft is damaged or severely worn: the coulter is incorrectly installed or broken or dropped . When the deviation occurs in the rotary tillage operation, the relevant parts should be corrected, repaired, reassembled or replaced according to the specific situation. Before the problem is solved, try not to use the steering clutch to correct the deviation, but use the method of pushing and pulling the armrest to correct the deviation.
sowing
walking tractor
When a walk-behind tractor is used for sowing operations. There are mostly two kinds of matching situations: one is the traction planter. Such as ABQ-8 grain seeder; the second is the synchronous drive ZBG-6A rice and wheat seeder. The main reasons for the deviation of the unit during the seeding operation are that the installation height of the seeding head (or opener) in the direction of the seeding width is inconsistent or left-right asymmetrical, the configuration and installation of the rotary cutting coulters are wrong or break off, and the traction frame collides Deformation and so on. For the above reasons. During the sowing operation, the resistance is unequal in the direction of the seeding width, and a torsional moment is generated, which causes the unit to deviate. For this reason, the technical status of the seeder should be carefully checked before the sowing operation, the rotary coulter should be configured and installed according to the regulations, and the seeding head (or opener) should be configured symmetrically. Ensure that the installation height is consistent and agronomic.
harvesting
The walk-behind tractor is mainly equipped with a 4GL-130 harvester. The main reason for the deviation of the unit is that the gap between the cutters in the cutting width direction of the harvester is different. Differences in cutting resistance: one side of the cutter is high and one side is low, the height of the stubble during harvesting is different, and the operating resistance is not equal; improper selection of cutting width; uneven ground. Actions should be taken according to the specific cause.
Ditching work
Generally, walking tractors are mainly equipped with 1KSQ-35A (front-mounted) or 1KSH-35A (rear-mounted) small disc trenchers, which are mainly used to excavate field drainage ditches. The main reason for the poor straightness of ditching operation: the deviation between the symmetrical center line of the cutter head and the center plane of the walking tractor drive axle exceeds the specified (1KSQ-35A allowable deviation 8mm, 1KSH-35A allowable deviation 5 mm): the cutter head is twisted and deformed, the frame Deformed and skewed. The coulter is installed incorrectly, the coulter breaks, falls off, etc. Attention should be paid to checking and correcting the cutter head and frame. Correctly install the rotary cutting coulter and carefully adjust the position of the cutter head. If the coulter is found to be broken or falling off, it should be stopped immediately and turned off. Replace parts.
Irrigation and threshing operations
Equipped with the corresponding water pump and thresher, the diesel engine flywheel belt is connected to the water pump or thresher, and the water pump or thresher is driven by the rotation of the diesel engine flywheel, which can be used for irrigation and threshing of crops such as wheat.
transport operations
Walk-behind tractor transport operations
The walk-behind tractor is equipped with a bucket, which can be used for both field transportation and road transportation. Generally, the 12-horsepower walk-behind is equipped with a 1-ton single-axle small trailer with a maximum load of 1 ton. Drivers participating in road transportation operations must pass the examination of the local traffic management department and issue a driver's license before driving. The tractor should be loaded with directional arrows and inverted
