Model: QL5

The frontal load: 5 t

Minimum height :250mm

Maximum height :380mm

Packing size: 710×330×240mm

Net weight: 7.2 kg

Gross weight: 8.6 kg

Packing quantity of wooden case :5 sets/case

QL5T mechanical jack has a main frame, base, a pair of bevel gears, screws, nuts, lifting sleeve, thrust bearing, ratchet group arm pull foot, etc. Screw jack adopts mechanical principle design, no oil itself, simple operation and no oil leakage phenomenon.

1) Jack placement. The foundation of the jack should be smooth, solid and reliable. When setting the jack on the bottom, it should be padded with wood or other appropriate materials to expand the force area.

2) Jack placement. When placing the jack on the soft ground, the wooden block should be placed under the jack, so as not to tilt after the force. When the weight is elevated, the support pad should be placed below the weight at any time, but the hand can not stray into the danger area.

In the placing process of the jack, keep the line of action of the load center of gravity consistent with the axis of the jack, and in the process of jacking, we should strictly prevent the danger of the jack slanting and tilting due to the slant of the jack foundation or the horizontal displacement of the load. To prevent the jacks and heavy metal surface or smooth concrete surface contact sliding, when necessary to cushion with hardwood blocks.

3) Jack jacking operation. Jack jacking height shall not exceed the effective jacking range. When lifting large objects (such as girder) should be separated at both ends of the rise and fall, one end of the rise and fall, the other end must pad, pad, put steady. Jacks are not allowed to be used over load.

Start the jack should not be rapid, the rhythm should rise at a uniform speed, to slow down. When multiple jacks are used at the same time, they should be operated synchronously. Jack operation is completed, to be carefully checked, check the oil pressure and hidden danger, and maintenance, placed in the appropriate place.