Hydraulic Tank Breathers - Komatsu 930E-2 Shop Manual

HYDRAULIC TANK BREATHERS

There are two breather filters located on top of the
hydraulic tank to allow air in and out of the tank. The
filters should be replaced at the interval specified on
the lubrication chart.
Keep the area around the breather filters clean and free
of debris build up. If there is any sign that the breather
filters are oil soaked, replace the filters as soon as
L3-16
possible and check for proper oil level. Once the
breather filters become oil soaked, they will plug very
quickly.
NOTE: Plugged breather filters can cause pressure
build up inside the hydraulic tank and can cause the
service brakes to drag.
Hydraulic Component Repair L03027