Service ManualLast Updated - 9/28/2016495B SE (S)42HYDRAULIC FILTER MAINTENANCETHE DRAIN FILTER(See Figure 2)This filter is mounted in the shrouding enclosure. The drain filter (565-00061) contains a replaceable filter elementwhich simply unscrews from the filter head.These filter elements are not re-usable.ELEMENT REPLACEMENT PROCEDURE1. Remove old element by unscrewing it from filter head.2. Remove used gasket from groove in filter head.3. Take new gasket from inside new element and install in groove in filter head.4. Apply oil to new gasket.NOTE: On a new machine the filter elements must be changed afterthe first 100 hours of operating time and then every 400 hours afterthat.THE RETURN FILTER(See Figure 1)The Return Filters (565-00116) are welded into the top of the hydraulic oil reservoir.The filter heads must be unbolted, twisted, and lifted off to reveal the filter element which can then be removed andreplaced.When maintaining the hydraulic system, keep all parts clean and remove all dirt from the area before you begin disas-sembly. Use caps and plugs to keep dirt out of tubelines and openings.