Controls

Hydraulics

Breathers

Filtering the Air. Breathers Prevent Ambient Air from Entering the Reservoir Unless it has been Filtered.

The function of the filler-breather is to clean any air that enters the reservoir as the fluid level drops from normal system cycling. It is imperative that good filtration is provided to clean the incoming air.

Open-circuit hydraulic systems need breathers, so air can exit and enter the reservoir as the fluid level rises and falls.

In addition to removing airborne dirt, some types of breathers are designed to remove the moisture from the incoming air.