Farm Machinery Maintenance Wrong Practice When Prohibited

When some farmer friends repair agricultural machinery, due to lack of prevention or incorrect operation methods, they often lead to accidents, harm to the human body and cause undue consequences. Therefore, when repairing agricultural machinery, we must be careful and carefully grasp the essentials of operation to ensure the safety of people and agricultural machinery.

1. The wrong way to threaten personal safety

(1) Use heavy ropes to hang heavy objects. In the maintenance of tractors, some people often use hemp ropes, nylon ropes, tripods, etc. to unload the engine and gearbox. This is very unsafe. The correct approach is: use a solid steel rope. The tripod must also be firmly grounded. When suspended from a crane, no one under the weight can pass or stand.

(2) The wrong way to support the vehicle. When tyres are damaged or replaced, it is unsafe to use bricks, stones, wooden blocks or a jack alone. The correct approach is to use the jacks and knot solid wood piers to lift the frame at the same time. In addition, the front and rear wheels must be locked with triangular wood or larger stones to prevent the vehicle from moving back and forth, causing the support used to fall and hurt. And it should be done on a solid ground to prevent dumping and hurting people.

(3) Unsafe operation of tire inflation. The tires are re-inflated after being disassembled and unprotected, causing the rims to be wounded. The correct method is: before inflating, lock the tire, lock ring, retaining ring and rim together with a chain; you can also inflate one side of the retaining ring toward the ground or wall to prevent the rim from being wounded.

(4) The welding oil container does not wash residual oil. For welding oil containers, the residual oil in the containers must be cleaned beforehand, otherwise explosions may occur during welding. The cleaning method is: using alkaline water or hot water and vinegar, repeatedly cleaning 2 to 3 times, and control the net, dry and then welding. Do not blow dry with high-pressure air to prevent static sparks from causing explosions. All lids should be opened before welding. When cleaning large tanks, people entering the tanks should wear long-sleeved clothes. They must not barefoot and must wear protective belts and signal ropes. The working time in the tanks should not be too long. Special care should be taken outside the tanks. After the person goes out of the tank, he must wash his face, wash his hands, gargle, and wash the clothes with alkali and then wash with water.

(5) Incorrect operation of repair brake. When the brakes are repaired, the hand and foot brakes are repaired at the same time. The body is unstable and is prone to causing people to hurt themselves. The correct method of operation is to separate the hand and foot brakes so that they can be braked and kept safe. The parking location should be solid and flat, and the front and rear wheels should be secured with triangles to prevent slipping.

(6) Unsafe practices for repairing brakes. When repairing the brakes, hand and foot brakes are repaired at the same time, which can easily lead to instability of the vehicle body and cause people to slip and hurt themselves. The correct course of action is to separately repair the brakes on your hands and feet so that you can brake each other to ensure safety. The place where the farm machinery should be parked should be solid and flat, and the front and rear wheels should be secured with triangles to avoid sliding.

(7) Unsafe practices for commissioning the engine. When commissioning the machine, personnel are prone to injury when they approach dangerous parts such as fans, transmission belts, or exhaust pipes. Tools, parts, etc. are also liable to fall or damage the machine. Requires the debugger to dress neatly and neatly, non-debugging personnel should stay away from the machine, try to stop the machine during commissioning, turn off the machine in the lower part of the commissioning, and need to dispatch someone to guard the operating mechanism to prevent outsiders from misoperation; check the tool before start-up after commissioning And parts and send a signal.

(8) Insecurity of adding water. It is also very unsafe to open the tank cover immediately when the engine is hot, especially in the case of “open pot”. The water release switch should be opened first. After the water pressure is lowered, cover the water tank with a towel, etc., and tilt the body and head to one side and unscrew it slowly.

(9) Unsafe practices for servicing electrical equipment. When repairing electrical equipment in the vehicle, repair it without removing the battery wire in advance, which may easily lead to sparks and injuries caused by the hot wire. It is necessary to remove the battery wire before repairing; when preparing the electrolyte, use a metal container or dilute concentrated sulfuric acid Pouring water into concentrated sulfuric acid is also an erroneous operation. The correct practice is to use ceramic or glass containers and slowly pour concentrated sulfuric acid into water. This must be strictly observed.

2. The wrong way to threaten vehicle body safety

(1) Addition of engine oil. Many engine operators do not replace the engine oil when it is replaced. Instead, they add fresh engine oil to the crankcase so that the engine oil accumulates. It is mistaken for this to guarantee the lubrication needs of the diesel engine and save costs. As everyone knows, oil after long-term use has deteriorated, impurities increased, lubrication quality decreased, at this time, even if often add fresh oil, oil quality can not meet the requirements, resulting in accelerated wear of parts, greatly reducing the cylinder liner, piston and other machines The service life of the parts. At the same time, a large amount of impurities in the oil will adhere to the wall of the oil passage. In severe cases, the oil passage will be blocked, resulting in the occurrence of troubles such as shaft-shafting and burning of tiles.

(2) Adjust the valve clearance at will. Most operators do not use special tools for inspection, but judge the size of the valve clearance by shaking the feel of the valve rocker arm. Even if it is true, it will affect the work of diesel engines. The lighter fuel consumption will increase and the engine power will drop. The heavy one will cause the piston to collide with the valve, and even cause a bad piston, a connecting rod, a broken crankshaft, Hit the cylinder and other major faults.

(3) The exhaust pipe carbon deposition is not cleaned for a long time. Most operators ignore the maintenance of locomotive exhaust pipes. They have not cleaned the carbon deposits of the exhaust pipes for a long time. As a result, the cross section of the exhaust pipe is narrowed and the exhaust gas is blocked. As a result, the engine's fuel consumption rate is increased, power is reduced, and “overheating” occurs. phenomenon. Therefore, under normal circumstances, the exhaust pipe coke should be cleaned once every quarter to ensure the smooth exhaust of the diesel engine.

(4) The new machine is put into load operation without running. After repurchasing a new machine, in addition to its inspection and maintenance, it must be run in strict accordance with the commissioning procedures stipulated in the manufacturer's manual. The rotational speed should be from low to high and the load should be light to heavy in order to eliminate the unevenness of the friction surfaces of the parts. Traces make it smooth. Some operators bought back new farm machines and did not perform test run-in directly on the machines as required, resulting in a significant reduction in the service life of the machines.

(5) Do not check before and after the operation. Many pilots did not do the same thing before and after the inspection of the work, causing the parts of the agricultural machinery to loosen and fall off during operation, and even hurt the human body. Therefore, before and after the operation of agricultural machinery, it is necessary to carefully stop the inspection of bolts, nuts, washers, cotters and other loose parts in time to tighten, the missing should be promptly filled, wear deformation of the parts should be repaired immediately, to prevent small losses.