The XL5P manual pump is perfectly adapted for use with resistance oil meter units (SLR) on medium size machines with no more than 30 lubrication points.
The XL5P manual pump works like an accumulator. On pushing the handle, the spring is compressed and the internal chamber is filled with a predetermined oil quantity.
On releasing the handle, the spring loaded piston pushes the oil into the distribution circuit. Oil volume discharge is measured without any viscosity influence.