Safety Operation Skills of Large scissor lifts
2022-06-24
1. Safety Inspection Before Lifting
The safety inspection before using the lift can clearly understand the use status, maintenance, and maintenance needs of the equipment to ensure the normal operation of the equipment and that it is in a good working condition for a long time. The specific operation steps are as follows:
(1) First, wear personal protective equipment as required, be familiar with the functions of the lift buttons, operate all buttons, and require that the lift stops as soon as the hand leaves the button.
(2) Operate the lift with no load, turn on the power combination switch, press the ascending button, and visually
check that the platforms on both sides run synchronously to ensure that the lifted vehicle will not tilt.
(3) Operate the locking button to lock the insurance, and switch to the sub - scissor position. Operate the ascending button, and the sub - scissor platform rises. Operate the descending button, and the sub - scissor platform
descends. Switch back to the main scissor platform position, operate the descending button, and the main scissor platform descends until the descending button fails. Operate the descending button to lower the main scissor platform to the lowest position.
(4) Check the safety lock, which is required to be sensitive and effective and can automatically reset and engage.
(5) Check all oil pipe joints for no leakage.
(6) Check the limit switch to ensure that the limit switch makes effective contact.
(1) First, wear personal protective equipment as required, be familiar with the functions of the lift buttons, operate all buttons, and require that the lift stops as soon as the hand leaves the button.
(2) Operate the lift with no load, turn on the power combination switch, press the ascending button, and visually
check that the platforms on both sides run synchronously to ensure that the lifted vehicle will not tilt.
(3) Operate the locking button to lock the insurance, and switch to the sub - scissor position. Operate the ascending button, and the sub - scissor platform rises. Operate the descending button, and the sub - scissor platform
descends. Switch back to the main scissor platform position, operate the descending button, and the main scissor platform descends until the descending button fails. Operate the descending button to lower the main scissor platform to the lowest position.
(4) Check the safety lock, which is required to be sensitive and effective and can automatically reset and engage.
(5) Check all oil pipe joints for no leakage.
(6) Check the limit switch to ensure that the limit switch makes effective contact.
2. Operation Steps for One - time Lifting Platform
During the process of lifting the vehicle, it is necessary to ensure that the center of gravity of the vehicle is at the lifting center position. When lifting a vehicle with a low lifting height, the height bracket should be at the designated lifting part of the vehicle. The specific operation steps are as follows:
(1) Park the vehicle at the center of the large - scissor lift platform. If the lifting platform supports four - wheel alignment, the front wheels of the vehicle should be parked as close to the center of the turntable as possible. Put the vehicle into P gear or N gear and pull up the parking brake.
(2) Operate the ascending button of the lift to lift the vehicle to the required height. During the lifting process of the lift, the operator should always pay attention to whether the two platforms of the lift are synchronized. If an abnormality is found, immediately turn off the emergency stop button and disconnect the power supply to ensure that the vehicle will not suddenly fall even if the hydraulic system fails.
(3) Check whether the vehicle is safe, and then operate the locking button to ensure that the mechanical lock has locked the insurance before starting the work under the vehicle. To ensure that the lift will not suddenly fall in case of hydraulic system failure, be sure to operate the locking button and lock the insurance before entering under the vehicle to work.
(1) Park the vehicle at the center of the large - scissor lift platform. If the lifting platform supports four - wheel alignment, the front wheels of the vehicle should be parked as close to the center of the turntable as possible. Put the vehicle into P gear or N gear and pull up the parking brake.
(2) Operate the ascending button of the lift to lift the vehicle to the required height. During the lifting process of the lift, the operator should always pay attention to whether the two platforms of the lift are synchronized. If an abnormality is found, immediately turn off the emergency stop button and disconnect the power supply to ensure that the vehicle will not suddenly fall even if the hydraulic system fails.
(3) Check whether the vehicle is safe, and then operate the locking button to ensure that the mechanical lock has locked the insurance before starting the work under the vehicle. To ensure that the lift will not suddenly fall in case of hydraulic system failure, be sure to operate the locking button and lock the insurance before entering under the vehicle to work.
3. Lowering the Lifted Vehicle to the Ground
To lower the lifted vehicle to the ground, it is necessary to ensure that the center of gravity of the lift is stable and the platforms on both sides of the main platform move synchronously. Lock the insurance before operation. The specific operation steps are as follows:
(1) Before the lift descends, ensure that there are no personnel or objects under and around the vehicle. Operate the descending button, and the pneumatic unlocking will open automatically when descending. The vehicle will automatically stop when it is about 70 cm from the ground. Continue to operate the II button, the buzzer will alarm, and the lift will lower to the ground.
(2) Turn off the power supply of the lift and drive out the vehicle.
(1) Before the lift descends, ensure that there are no personnel or objects under and around the vehicle. Operate the descending button, and the pneumatic unlocking will open automatically when descending. The vehicle will automatically stop when it is about 70 cm from the ground. Continue to operate the II button, the buzzer will alarm, and the lift will lower to the ground.
(2) Turn off the power supply of the lift and drive out the vehicle.
4. Operation Steps for Secondary Lifting Platform
If it is necessary to use the sub - scissor to lift a vehicle with a long wheelbase and the standard platform cannot reach the lifting point position, a sub - scissor extension plate must be used, and then align the rubber support pad with the 4 support points of the vehicle, and adjust the rubber support pad to the correct support point position of the vehicle chassis. The specific operation steps are as follows:
(1) Switch the selection switch on the control cabinet to the sub - scissor position, operate the ascending button to lift the sub - scissor to the position where the extension plate can be pulled out. Pull out the extension plate and place the rubber pad under the correct lifting point position of the vehicle. Please follow the lifting point position specified by the vehicle manufacturer to lift the vehicle. If necessary, refer to the vehicle operation manual to confirm the correct lifting point position.
(2) Lift the sub - scissor platform until the rubber pad contacts the vehicle chassis and then stop. Recheck whether there is any deviation in the lifting position and whether the vehicle support is firm. If there is a problem, lower the sub - scissor platform and readjust. Be sure to ensure that the vehicle is lifted stably until the vehicle is lifted to the required height.
(3) When the sub - scissor platform descends, first operate the descending button, stop when the rubber pad is separated from the vehicle chassis, recycle the rubber pad, restore the pulled - out extension plate to its original position, and finally lower the sub - scissor to the lowest position.
(1) Switch the selection switch on the control cabinet to the sub - scissor position, operate the ascending button to lift the sub - scissor to the position where the extension plate can be pulled out. Pull out the extension plate and place the rubber pad under the correct lifting point position of the vehicle. Please follow the lifting point position specified by the vehicle manufacturer to lift the vehicle. If necessary, refer to the vehicle operation manual to confirm the correct lifting point position.
(2) Lift the sub - scissor platform until the rubber pad contacts the vehicle chassis and then stop. Recheck whether there is any deviation in the lifting position and whether the vehicle support is firm. If there is a problem, lower the sub - scissor platform and readjust. Be sure to ensure that the vehicle is lifted stably until the vehicle is lifted to the required height.
(3) When the sub - scissor platform descends, first operate the descending button, stop when the rubber pad is separated from the vehicle chassis, recycle the rubber pad, restore the pulled - out extension plate to its original position, and finally lower the sub - scissor to the lowest position.