Matters needing attention in the installation of agricultural machinery parts

Source: Bearing network time: 2018-01-29

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In the repair of agricultural machinery; some parts are not bound by the layout; the device may be reversed or misplaced when it is slightly careless; leaving a potential risk to the agricultural machinery; therefore; the device must be paid attention to.
Cylinder head gasket: It has oil hole; it is necessary to align it with the corresponding oil passage hole on the body and cylinder head; avoid the conflict of the gas distribution structure on the cylinder head due to oil breakage. No oil passage hole and positive and negative shape The same; use the material of the cylinder head to determine: for the aluminum alloy cylinder head; the side of the cylinder head should be facing the cylinder, the cast iron cylinder head; the side of the cylinder head should be facing the cylinder head.
Piston and piston ring: Piston with the upward arrow symbol on the top; should be installed in the direction of the symbolic rule, unsigned; then the small vent vortex or the small notch next to the pit should be directed toward the injector side; Mixing gas evenly. When installing the piston ring; the top has "up", "UP" and other symbols; should be upwards, the top unsigned tortuous ring; the inner circular groove or chamfer should face downward, chrome-plated ring (shell Lightening) should be installed in the first piston ring groove. The opening of each ring should be staggered by 120 to 180 degrees to ensure its sealing and oiling effect.
Connecting rod and connecting rod cover: the large end of the connecting rod of the horizontal diesel engine is divided by 45 degrees; the section should be facing downward; to improve the stress condition of the connecting rod bolt. The connecting rod cover and the connecting rod are paired and processed; The device should be placed on the same side of the paired mark; to ensure that the roundness and cylindricity of the connecting rod bearing meet the requirements of the rules.
Main bearing cap, bearing bush or bushing: the main bearing cap and the body bearing seat are matched with boring; the seat should be placed according to the pairing mark; the direction of the device should not be exchanged or changed at will; avoiding the concentricity and scale accuracy of the main bearing housing hole Bushings or bushings with oil holes; should be aligned with the corresponding oil passage holes in the bearing housing and bushing holes; to ensure smooth oil passage.
Cylinder head bolt: If one end of the bolt is a coarse thread; the other end is a fine thread; then the threaded end of the bolt should be screwed into the body. If the two ends of the bolt are fine teeth, the shorter end should be screwed into the body; To ensure that the cylinder head can be pressed.
Oil pump and fuel injection pump: The oil is selected from the planetary rotor type; the outer rotor should be chamfered toward the pump body; avoid the oil circulating in the pump and lower the pump oil pressure. The nozzle plug sleeve should be aligned with the pump. Positioning hole on the body; the mark (or oil return groove) on the plunger should be facing upwards; avoid forming oil or diesel engine.
Foam plastic filter: air filter using foam filter; device filter should be in the same direction as the surrounding direction of the filter and the direction of intake air; to reduce the pressure of the intake air.
Clutch conflict piece, dish spring, brake shoe, bearing: clutch conflict plate two hub lengths are not common; two long hubs should be opposite (short hub opposite) device; otherwise the clutch will not engage, conflict film Riveting the oil pan; the oil pan should face the flywheel; avoid contamination by oil. The double-acting clutch uses the disc spring as the pressing element; the small end of the two-disc spring should be opposite; The conflict piece is firmly pressed. The unbalanced wheel brake is used; the brake shoe with the longer conflict piece should be the front brake shoe; otherwise, the brake shoe will be unevenly worn; and the braking effect will be reduced. 60204 (outside) and 60206 (inside) semi-closed bearing support; should be closed with the rubber ring closing surface; also should not be replaced by other bearings; otherwise it will form oil into the clutch cavity, water.
Transmission shaft and transmission chain: The transmission forks at both ends of the transmission shaft should be in the same plane; avoid the formation of transmission parts to change the oscillation and damage. The transmission chain should be spring-loaded; the direction of the opening end should be opposite to the direction of chain movement; avoid movement Dropped by a bump.
Drive wheel: The drive wheel has the upward arrow symbol; it should be pointed to the direction of rotation of the tire when it is traveling, unsigned; the drive wheel is viewed from the back of the locomotive; the top of the "eight" or "human" shape should be facing upwards.

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