MACHINE CONFIGURATION
TRAVEL SYSTEM
III-12TB53FR
3
1
2
C4C309
Removing the Steel Crawler
1. Stop the machine so that master pin is front of the
idler.
2. Loosen the tension of the crawler (1).
When loosening the check valve (2), turn it slowly.
Do not loosen it beyond the point where grease
starts to ooze out. If it is difficult for the grease to
come out, move the machine forward and in
reverse.
Check valve: 177 N·m
3. Take out the master pin (3) and separate the ends
of the crawler (1).
4. Raise the body, then open up the crawler (1) while
running the travel motor slowly in reverse.
• Use the dozer blade and hoe attachment to
raise the body, It should be kept level as it is
raised.
Steel Crawler: 245 kg
Installing the Steel Crawler
1. Raise the body and position the crawler beneath
the frame.
• Be careful not to mistake the installation direc-
tion of the crawler.
2. Engage the links in the sprocket, then run the
travel motor slowly in the forward direction to
wrap the crawler around the frame.
3. After lowering the body, install the master pin to
join the ends of the crawle.
• After aligning the pin holes, insert a temporary
pin before inserting the master pin.
4. Raise the body and adjust the crawler tension.
“II, Specifications, Standards for judging
performance”
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