SWDM240B OPERATION & MAINTENANCE MANUAL
■ When installing filter elements, seal rings should be check to avoid dropping or loss.
■ Return filter element and filter cartridge should be checked at the same time. If much
visible scrap iron and copper, please check hydraulic oil pump, hydraulic motor and other
hydraulic components for damage or abrasion at once.
Clean oil tank air filter, according to FIG. 7-6-5 , dismantle filter element, blow it from inner to
outer to clean dust and impurity.
Return filter element clean, according to FIG. 7-6-7, dismantle filter cartridge, take out the filter
element, blow it from inner to outer to clean impurity.
Pilot filter element, according to FIG. 7-6-9, take out pilot filter element, blow it from inner to
outer to clean impurity.
7.6.5 Draining Water and Sediment in Hydraulic Oil Tank
FIG. 7-6-10
1) Unscrew drain valve cap.
2) Tighten the water pipe onto the drain valve till impurity and water flows from the
bottom of the oil tank.
3) After drain water and impurity from the bottom, clean hydraulic oil will flow out
from the water pipe;
4) After drainage, install water pipe and drain valve cap.