Adjusting Crawler Tension - EMAK TN 3500 Bedienung Und Wartung

6. Adjusting crawler tension

o Adjust crawler tightness by turn-
ing adjuster nuts (A) and after hav-
ing loosened lock screws (B) so that
crawlers have a flexure (C) of be-
tween 10-15 mm when pressed with
a thumb. Use both the left and right
adjusters
CAUTION
o Make sure to well tighten screws
and nuts after tension adjust-
ment.
DANGER
In order to avoid personal injury,
make sure that crawlers are not ex-
cessively tense. Irregular loads ap-
plied to the idler, sprocket and
crawler leads to excessive wear and
to bad accidents.
IMPORTANT
o It is necessary to first move the
machine forwards before carrying
out any sort of adjustment opera-
tion, since if the machine is pulled
backwards the upper part of the
crawler remains tense, thus making
whatever type of adjustment impos-
sible.
o Remove mud from the crawler so
as to avoid the adjustment nut from
hardening or getting stuck. Lubri-
cate the crawler stretcher at the end
of the job.
o Excessive tension on the crawlers
may cause the following problems:
o Increase of running resistance and
reduction of driving power.
o Excessive wear of crawler.
o Insufficient tension on the crawl-
ers may cause the following prob-
lems:
o Disengagement of crawler.
o Defective engagement of sprocket.
o Excessive wear of crawler.
After completing the work, clean
properly and remove soil and mud
from the crawlers.
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