© Oct 2020 5-30 AB18EJ&18HJ Maintenance Manual
MAINTENANCE PROCEDURES
CHECKLIST D
PROCEDURES
D-1 Replace Drive Reducer Gear Oil
Regularly replacing drive reducer gear oil is vital to
good machine performance and extending service life
of the reducer.
1. Drive the machine to rotate the reducer to the
position with one bolt at the bottom, as shown in the
figure below.
Figure 5-25
2. Place a suitable vessel under the bolt as indicated
by the arrow in the figure.
3. Remove the bolt as indicated.
4. Fully drain the drive reducer gear oil to the vessel.
5. Mount back the loosened bolt.
6. Drive the machine to rotate the reducer until one
bolt is at top and the other is at 90 degrees.
Figure 5-26
7. Remove the #1 and #2 bolts as indicated.
8. Add new gear oil to the port #1 until the oil level is
even with that of the port #2.
9. Mount back the bolts.
10. Clean up the oil spills in performing the inspection
procedure.
11. Perform the same procedure on all drive reducers
of the machine.
D-2 Replace Slewing Reducer Gear Oil
Regularly replacing slewing reducer gear oil is vital to
good machine performance and extending reducer
service life.
1. Open the left side cover of turntable, and locate the
slewing reducer.
2. Place a suitable vessel under the drain plug of the
slewing reducer.
3. Remove the drain plug.
4. Fully drain the slewing reducer gear oil to the
vessel.
5. Mount back the drain plug.
6. Remove the fill plug (for the location, reference B-
12 Inspect Slewing Reducer Oil Level, page 5-
20), add new gear oil to the fill port until the oil level
is even with the bottom of the fill plug.
7. Mount back the fill plug.
8. Clean up the gear oil spills in performing the
inspection procedure.
D-3 Replace Hydraulic Oil
Regularly replacing hydraulic oil is vital to good
machine performance and extending service life. Dirty
oil may cause the machine to perform poorly and
continued use may result in hydraulic component
damage. Extremely dirty condition requires the oil
changes to be performed more frequently.
BURN HAZARD
Before servicing the hydraulic
system, allow the hydraulic oil to
cool down to room temperature.
To Next Page
Loading...
