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Analysis of five key points of electro-hydraulic jack

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Analysis of five key points of electro-hydraulic jack

  The electro-hydraulic jack must be used on a hard and flat road. If it is a relatively soft ground, such as a dirt road or a sandy road, it is recommended to use wood or stone slabs to pad under the jack before using the jack to reduce the pressure to prevent The jack sank into the soft ground.


Key point 1: Fix the car completely before supporting the car. 

  This is very important. If the vehicle is not completely fixed before supporting the vehicle, it is likely that the vehicle will slip and fall during the support process, causing the vehicle to fall from the jack. In the light of the tool damage, the person will be injured. 

  The correct operation method: 1. Pull up the handbrake for manual transmission models, and put the transmission in 1st gear or reverse gear at the same time (don't forget when starting again); 2. For automatic transmission models, also pull up the handbrake, and at the same time the gearbox is placed in the P position. .3. Put the jack under the car for lifting operation.

  Because the jack of a family car often supports a single wheel, if it is parked on a sloped ground, the relative position of the jack to the body may change after the jack is raised. This angle changes on a slope with a larger angle. It will be larger and easy to slip or damage. If the fault location happens to be on a slope, it is recommended to use a tool such as brick or wood to block the wheels to prevent them from sliding.


Key point 2: The soft road surface should be used in conjunction with the pad.

  The jack must be used on a hard and flat road. If it is a relatively soft ground, such as a dirt road or a sandy road, it is recommended to use wood or stone slabs to pad under the jack before using it to reduce the pressure to prevent the jack from falling Into the soft ground.

  Before supporting the vehicle, if the vehicle can still move, try to find a level and solid ground support. In the case of sandy soil or even desert roads, when using the jack, be sure to use a relatively large area of wood under the jack.


Key point 3: It must be supported on the support point of the chassis.

  When using the jack, be sure to support it on the dedicated support point of the body chassis. The support point of the family car is usually on the inside of the side skirt, like the two fins on both sides of the chassis, about 20 cm behind the front wheel, and the rear wheel. About 20 cm in front of the chassis. This fin protrudes from the chassis steel plate and can withstand relatively large pressure. If you do not follow the correct operation, the jack is supported on the chassis steel plate, it is likely to cause unnecessary damage to the chassis, in addition Supporting on the suspended lower arm is also incorrect operation.If the jack slips and the vehicle falls down, the chassis and jack will be damaged.


Key point 4: The lift must be stable.

  The jack rocker arm of many household cars is a split structure and needs to be rotated after being linked with the matching wrench and casing. Therefore, in the process of lifting the jack, the force must be even, and avoid too fast or too strong. If you don't reach it, if you bump the jack and cause damage during the lifting process, you may not even have the opportunity for secondary support.


Key point 5: Use tires as insurance.

  I should also remind you that the use of such an onboard jack is only to support regular tire replacement or inspection suspension, and cannot replace the lift for substantial maintenance work. It is strictly forbidden to put your body or arms under the body to avoid danger. In addition, in After the jack is fully lifted, you can put the spare tire or the removed tire under the body to make a temporary insurance.Even if the jack has a problem, it will not cause greater losses.



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