Views: 12 Author: Tommy Publish Time: 2019-03-27 Origin: Site
The farm jack is a self-elastic locking device that uses the principle of lever to manually rock the arm. The safe and reliable hole card is locked, the operation is simple and easy to use, and the lifting height is large. It is suitable for repair and rescue assisting functions of wild off-road vehicles. It can be used to lift vehicles to replace tires, overhaul vehicles, and to lift wheels from mud or large pits during vehicle trapping.
1. Place the jack in an upright position, then lower the pump position and piston until it is completely relaxed;
2. Remove the rubber oil plug from the jack, inject high quality hydraulic oil, and remove the air;
3. Install the rubber oil plug and lubricate the drive connection and adjust the screw regularly.
In principle, the hydraulic jack is based on Pascal principle, that is, the pressure of the liquid is the same everywhere, so in a balanced system, the pressure exerted on the smaller piston is relatively small, and the pressure exerted on the larger piston is also relatively large, which can keep t