Maintenance work on the superstructure
8.4 Slewing gear
16.11.2018
Maintenance manual 3 302 756 en 8 - 21
GMK6400
Draining oil
• Remove the plate (1).
• Place a container under the screws (2).
• Unscrew the filter (4) and bolts (3) and (2).
• Drain the oil.
• Replace the gasket and tighten the
screws
(2).
Topping up the oil
• Top up the oil through the filler neck (4) until
oil is visible in the sight glass (5).
• Replace the gaskets and tighten the
screw
(3) and the filter (4).
• Attach the plate (1).
Checking the oil Check the waste oil that was drained from the slewing gears for abrasion
particles, or have it tested at 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
transmission must be removed and inspected by the manufacturer.
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