Takeuchi TCR50 Operator's Manual page 129

MAINTENANCE
When Required
Inspecting the Rubber Crawlers
Repair or replace the rubber crawlers if their
conditions are as described below. Consult
a Takeuchi sales or service outlet about
repairs or replacement.
Rubber crawler
Replace the crawler if the entire crawler is
stretched and cannot be adjusted.
(1) Lug
4
A
Replace if the height of (A) is 5 mm (0.2 in.)
or below.
(2) Steel cord
1/2
Replace if the steel cord is exposed over 2
or more links.
Replace if half or more of the steel cords on
one side are cut.
(3) Metal core
3
Replace if even one metal core is off.
(4) Rubber
3
2
1
S2G027
Repair if there are cracks of 60 mm (2.4 in.)
or greater in length.
If the steel cord is visible, repair as soon
as possible, regardless of the length of the
crack.
2
S2G028
127
S2G029
60mm or greater
S2G030