Qingdao Yijiaan Industry And Trade Co.,Ltd

Qingdao Yijiaan Industry And Trade Co.,Ltd

Operation instruction and Maintenance for the mobile column lift

Author:Martin Chen Date:6/27/2019 4:02:56 AM

Operation instruction and  Maintenance for the mobile column lift

 Operation instruction

1. Before operation, should check whether all the fastening parts are loose in the transportation or use and whether the lubrication points, lead screw, screw nut, directive wheel, and transport wheel are needed to be oiled. After all are ready, wiring the power, four posts electrical motors and travel switch in the order requited by the electric control cabinet to the terminal block at the back of the electric control cabinet.

2. After the power is switched on, push the General Rising, General Descending, single motor rising and descending and touch the up and down travel switch for each post to see whether they operates and whether the indication of the elevating push button switch is identical to the elevating direction of the lifter. If not, please exchange the lines of two phases of the power cord or electrical motor.

3. The loaded lifting can be done only after no-load test is OK.When lifting with load, lower the lifter to the extreme lower position and push the supporting fork of the four-post lifter to the position at which the four-wheel car can be picked up and push general rising switch and the lifter begins hoisting the car. When reaching the extreme high position, the lifter will be stopped automatically with any motor touching the travel switch; when going down, push general descending switch, the lifter begins lowering the automobile and when reaching the extreme lower position, the lifter can automatically stop with any motor touching the travel switch.

4. The elevating switch for each motor is used for adjusting the balance of the bearing points of the posts. The adjustment of the balancing should be done with the limit travel switch and lower limit travel switch inoperative.


1. This machine should be cleaned frequently to keep it clean;

2. The upper end and bottom end bearings of the lead screw should be oiled once every tow years;

3. The guide wheel and transport wheel should be oiled once every two years;

4. The lead screw and screw nut should be oiled once every tow years;

5. The reduction drive should be filled in 40# machine oil once every year. In operation the oil reserve in the reduction drive should be maintained specified oil level, not tow much nor too small.

6. Check up the working nut lock mechanism (see diagram) before working everyday. The clearance between steel ball seating and safety nut ex works is 11±1 mm.When the clearance is worn away less than 71 mm,it shows that the operating nut should be changed immediately. In addition, should check whether the lower and upper travel switches are quick to work to ensure the safety mechanism reliable.

7. The friction tape of the electromagnetic clutch should be periodically checked for worn condition and should be changed immediately if found damaged. After shutdown, if the screw nut slides down, can adjust the spring adjustment bolt of the clutch to add its friction and prevent the downslide.

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