Stellar
®
Heavy-Duty Telescopic Crane Owner’s Manual | Page 21
Rotation Gear Bearing Maintenance
Rotation Worm Gear and Open Gear Teeth
Use a heavy Moly Lube grease (Stellar
®
PN 4460)
to lubricate the worm gear and open gear teeth
of the rotation bearing. Slowly rotate the crane
while pumping the grease between the worm
and rotation gear. This should be greased every
month or sooner depending on the usage of
the crane. Another way of applying the grease
would be to remove the gear guard and brush
the Molube grease between the gear teeth of
the rotation bearing.
Do not lubricate the worm
and rotation gear teeth
with EP2 grease. EP2 grease will wipe the Molube
grease clean causing excessive wear.
Worm Gear Bearings and Races
Apply three (3) pumps of EP2 grease to the two
grease zerks located on the side of the Rotation
Gear bearing; every three months. After adding
the EP2 grease, rotate the crane fully.
Inner Gear Bearing Race
To lubricate the inner race of the large rotation
gear bearing, open the compartment door just
below the crane. The grease zerk for the inner
race bearing is located on the compartment
drip tray. The inner race will need to be lubri-
cated with EP2 Grease weekly. The first week
grease the inner race bearing at the one (1),
three (3), five (5), seven (7), nine (9), and elev-
en (11) o’clock positions. The following week,
grease the inner race bearing in the two (2),
four (4), six (6), eight (8), ten (10) and twelve
(12) o’clock positions. Rotate lubrication points
every week.
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