1. No hydraulic oil,pls add enough hydraulic oil.
2. The purity of the oil is not enough.
3. The adjusting screw is too tight, the adjusting bolt is too close or the adjusting screw is too tight to make the valve always open. The O-ring seal needs to be replaced.
4.There is air in the oil pump of the manal hydraulic pallet jack, resulting in the equipment can not rise.
The method of air exhaust is very simple.
Manual hydraulic pallet truck generally have three gears.
1. In the middle is the positioning gear, which neither rises nor falls.
2.The top gear is neutral, that is, down gear, pressure relief gear.
3. The lowest gear, is to close the oil seal can make its hydraulic rise.
We just need to shift the gear of the manual hydraulic truck up, and then press the handle as usual. At this time, although the body will not rise, but can effectively exclude the air inside the pump body about 10-20 times after pressure, air can be exhausted.
Post time: Feb-16-2023