Doosan DX190W, Operation And Maintenance Manual

Page: 229 / 315

OP000530
4-33
Inspection, Maintenance and Adjustment
Change Breaker Filter Element (Optional)
1. Position the machine on firm, level ground. Lover the front
attachment to the ground and shut down engine.
2. Loosen the hydraulic oil tank breather cap to release
pressure.
3. Locate breaker filter assembly (Figure 51)
4. Position a container under the filter assembly. Remove the
drain plug and completely drain the assembly.
5. Using a 30 mm spanner, unscrew, unscrew filter housing
from filter bottom.
6. Remove O-ring from filter head.
7. Replace filter.
8. Apply a small amount of oil around the entire O-ring and
install the filter housing on the filter head.
NOTE: Tightening torque : 27 kg•m (265 N•m, 195 ft lb)
9. Install drain plug in bottom of filter housing.
10. After changing breaker filter, vent air from pump and check
level of hydraulic oil tank.
Change Swing Reduction Device Oil (Drain
and Refill After First 250 Hours)
NOTE: Change swing reduction device oil after 250 hours on
a new machine and every 2,000 hours thereafter.
(See page 4-53)
Replace Full Flow Hydraulic Oil Filter
(After First 250 Hours)
NOTE: Replace full flow hydraulic oil filter after 250 hours on
a new machine and every 1,000 hours thereafter.
(See page 4-56)
Change Pilot Filter (After First 250 Hours)
NOTE: Change pilot filter after 250 hours on new machine
and every 1,000 hours thereafter. (See page 4-48)
FG006644
Figure 51 Breaker Filter
WARNING!
The hydraulic oil will be hot after normal machine
operation. Allow the system to cool down before changing
pilot filter.