© Mar. 2023 38 AB16EJ Plus Maintenance Manual
CHASSIS AND TURNTABLE ASSEMBLY
Fig 6 Diagram of slewing mechanism
Table 5-3 Slewing mechanism
No.
Description
A
Slewing bearing
(slewing reducer)
B
Slewing motor
Lubricate Slewing Bearing
Regular lubrication of slewing bearing is essential to
maintain machine uptime and extend service life. Failure
to lubricate the slewing bearing regularly may lead to
abnormal operation of the machine and accelerated
component damage. It is recommended to lubricate the
slewing bearing every 3 months or 250 hours of opera-
tion, and when the machine is operated in multiple shifts
or exposed to harsh environments, the lubrication fre-
quency and amount of lubricant should be increased
accordingly.
1. As shown in the figure below, connect the grease
nipple on the slewing bearing and the nipple at posi-
tion #1 with a hose.
2. Position the oil gun nozzle on the grease nipple at
position #1 and fill with ZL-3 lithium-based grease
which will be transported to the turntable slewing
bearing through the hose.
3. Then, rotate the turntable by 100-130mm (4-5in)
each time until the whole circle is fully lubricated.
4. Position the oil gun nozzle on the grease nipple at
position #2 and fill with ZL-3 lithium-based grease
until the worm is fully lubricated.
5. Remove excess grease.
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