Doosan DL160, Operation And Maintenance Manual

Page: 189 / 236

OP000756
4-59
Inspection, Maintenance and Adjustment
1,500 HOUR / 9 MONTH SERVICE
Perform All Daily, 10, 50, 250 and 500 Hour
Service Checks
Replace Axle Differential and Planetaries
Oil
NOTE: Oil in both front and rear axles must be replaced after
first 500 hours of operation to comply with new
machine break-in requirements. After that, axle oil
check must be done every 500 hours of operation
and replacement must be done every 1,500 hours.
Each axle contains a center differential, and a planetary on each
end. The same oil lubricates the center differential and
planetaries. These sections of the axle are connected, but the oil
flows very slowly between them. When checked, oil must be
checked and refilled at the level/fill plug on the differential
housing.
To drain and replace oil in an axle, perform the following steps:
1. Drive machine onto a level surface. Position wheels on
axle being drained so that axle end level plugs (1, Figure
90) are in the lowest position. Apply parking brake. Block
wheels.
2. Clean areas around drain plugs on both ends of axle.
Remove plugs.
NOTE: See “Fluid Capacities” on page 4-16 for
capacity and “Table of Recommended
Lubricants” on page 4-14 of this manual for
recommended oil for the operating conditions.
NOTE: Dispose of drained fluids according to local
regulations.
3. Clean area around level plug (1, Figure 91) and drain plug
(2) on center differential. Remove level plug and drain
plug. Allow oil to drain into a suitable container.
4. Install drain plug Figure 91into center differential, and
tighten.
5. Pump oil into level plug hole on center differential. Add oil
until oil level is even with bottom of plug hole.
Figure 90
Figure 91