© Jun 2022 5-24 TB24 Plus&26J Plus Maintenance Manual
MAINTENANCE PROCEDURES
Figure 5-30
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 5-31
Inspecting the connecting bolts between
chassis and slewing bearing
Figure 5-32
1. Fully extend the boom and raise to horiztzontal
position.
2. Locate the connecting bolts between chassis and
slewing bearing.
3. As indicated by the arrow Fig 5-30 , page 5-24,
insert 0.04mm feeler gauge in between the bolt and
washer.
4. Ensure the feeler gauge won’t go through the
outside of bolt head to the bolt shank.
5. Rotate the turntable to inspect all the bolts.
Inspecting the connecting bolts between
turntable and slewing bearing
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