86
Maintenance and Service
Operator's Manual GB
9.4.2
9.4.2 Lubrication of the column bear-
ings
DANGER
The column bearings must be lubricated while
the crane is slewed. If one person lubricates
the column bearings, while another is slewing
the crane: Take care that the person lubricating
the bearings does not come into contact or get
crushed by the crane!
If you are lubricating the column bearings
without help:
• Lubricate the bearings with a little grease.
• Slew the crane a little.
• Again lubricate with a little grease. Repeat,
until the column has been slewed round
completely.
9.5
Hydraulics
9.5.1 Replacing the cartridge in return
oil filter
Return oil filter with fouling indicator
WARNING
Dirt will damage the hydraulic system