Maintenance work on the superstructure
8.4 Slewing gear
8 - 22 3 302 574 en Maintenance manual
GMK3060
03.11.2017
Draining oil
• Use a drain channel and place a container
under the screw (1).
• Unscrew the filter (2).
• Unscrew the screw (1).
• Drain the oil.
• Replace the O-ring and screw the screws (1)
back in.
Topping up the oil
• Top up the oil through the filler neck (2) until
oil is visible in the sight glass (3).
• Screw the filter (2) in.
Checking the oil Check the old oil drained from the slewing gear brake for abrasion part
icles
or have it tested in a laboratory.
• Pour the waste oil through a clean filter mat.
• Examine the oil or the residues on the filter mat using a magnifying glass.
If you find abrasion particles or solid materials on the mat, the slewing gear
brake must be removed for
inspection and sent to the manufacturer.
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