Section 5 – GENERAL MACHINE MAINTENANCE Mini-Crawler Crane M A E D A
5-64 1/2019 MC405C-3
Fallen Core Metal
• If the core metal of the rubber track is fallen out
at more than 1 location, change the rubber
track with a new one.
Fig. 5-145
Cracks
• If there is a crack between rubber track lugs,
change the rubber track with a new one.
Fig. 5-146
Replace Rubber Track
WARNING!
• The inside of the tension adjusting device of
the rubber track is greased. Grease is under
high pressure associated with the tension
of the rubber track. Failure to follow
precautions stated below when removing
grease may lead to a serious accident due
to the grease valve being popping out.
• Only one full turn of the tension adjusting
grease valve is allowed to loosen. The
grease valve may pop out if disregarded.
• Always stand aside when conducting
tension adjustment of the grease valve to
circumvent potential dangers.
• Ensure that grease is completely removed
from the inside of the rubber track before
rotating the sprocket to remove the rubber
track.
Removal of Rubber Track
• Have a steel pipe available.
1. See "OUTRIGGER SETTING" on page 4-42
to set the outriggers and raise the rubber
track for about 50mm from the ground.
Fig. 5-147
2. Loosen the grease valve (1) gradually and
remove grease.
Fig. 5-148
3. Provide only one full turn of the grease valve
(1).
4. Insert the steel pipe between the idler and
rubber track. Rotate the sprocket backward.
Fig. 5-149
5. When the inserted steel pipe detaches the
rubber track from the idler, slide the crawler
in a lateral direction to remove it.
To Next Page
Loading...
