© Oct 2020 5-22 AB18EJ&18HJ Maintenance Manual
MAINTENANCE PROCEDURES
Figure 5-19
1. Fully raise the boom and keep the main boom fully
retracted.
2. Locate the connecting bolts between turntable and
slewing bearing.
3. As indicated by the arrowFig 5-16 , page 5-20,
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. Lower the main boom to horizontal position, and
fully extend the main boom.
6. As indicated by the arrowFig 5-16 , page 5-20,
insert 0.04mm feeler gauge in between the bolt and
washer.
7. Ensure the feeler gauge won’t go through the
outside of bolt head to the bolt shank.
B-14 Lubricate Slewing Bearing
Regulary lubricating the slewing bearing from a long
distance is vital to proper machine operation. The
Lubricating frequency and the amount of lubricant used
should be increased if the machine is operated on
successive work shifts or in hostile environment.
• Lube point：1 grease nipple (see the following
figure)
Figure 5-20
• Amount：as needed
• Lubricant：ZL-3 lithium based grease
B-15 Inspect Platform Rotate Cylinder
Fasteners
Regularly inspecting the platform rotate cylinder
fasteners is vital to proper and safe machine operation.
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