M A E D A Mini-Crawler Crane Section 5 – GENERAL MACHINE MAINTENANCE
9/2020 MC285CB-3 5-37
Inspection of Rubber Tracks
Contact us or our sales service agency to request
inspection and repair service of the rubber tracks.
The presence of any of the following conditions
indicates repair or replacement of the rubber track
is required.
Lug Height
Worn lug height can cause a reduction in traction
force when:
• Lug height (a) is less than 5 mm.
Fig. 5-65
• Lugs are worn and the steel cord inside the
rubber track is exposing more than two links.
Fig. 5-66
Broken Steel Cords
• More than half of the steel cord layer is broken
on one side.
Fig. 5-67
Fallen Core Metal
Core metal of the rubber track has fallen out of
more than one location.
Fig. 5-68
Cracks
Cracks occur between the rubber track lugs.
Fig. 5-69
Removal of Rubber Tracks
WARNING! Exposure Hazard. The rubber track
tension adjuster contains grease under high
pressure.
Use the following guidelines when removing the
tracks.
• Do not turn the grease valve more than one full
turn out.
• Stand to the side of the adjuster when adjusting
tension or removing the track.
• Ensure all grease is removed from the inside of
the rubber track before rotating the sprocket to
remove the rubber track.
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