© Apr 2022 5-24 TB18 Plus&20J Plus Maintenance Manual
MAINTENANCE PROCEDURES
1. Drive the machine to rotate the reducer until one
bolt at top and the other one at 90 degrees, as
shown in the figure below.
Figure 5-26
2. Remove the bolt #2, and check the oil level.
3. The oil level should be even with the bolt hole.
4. If necessary, add oil to the bolt hole.
5. Remove the bolt #1, add gear oil to the bolt hole #1
until the oil level is even with that of the bolt hole #2.
6. Install the bolts back.
7. Clean up the gear oil spills during the inpection.
8. Perform this inspection procedure to all drive
reducers of the machine.
B-12 Inspect Slewing Reducer Oil
Level
Inappropriate gear oil level of slewing reducers will
reduce the machine performance, and continued use
could result in component damage.
Figure 5-27
1. Open the left side cover of turntable, and locate the
slewing reducer.
2. Remove the plug of fill port to check the oil level.
3. The oil level should be even with the bottom of the
plug hole.
4. If the oil level is lower than the bottom of the plug
hole, add oil.
5. Add gear oil from the fill port until the oil level is
even with the bottom of the plug hole.
6. Install the plug back.
7. Clean up the gear oil spills during the inpection.
B-13 Inspect Slewing Bearing Bolts
Regularly inspecting the slewing bearing bolts is vital to
proper machine operation. This inspection should be
performed after the first 50 hours of operation and
every 600 hours thereafter. If the bolts come off or get
loose, replace with new ones. Apply threadlocker
Loctite 272 to the new bolts and torque to specification.
After the bolts are replaced and torqued, re-inspect the
bolts for tightness.
Figure 5-28
Inspecting the connecting bolts between
chassis and slewing bearing
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