Checking The Crawler Tension - Kubota KX91-3a2 Operator's Manual

Maintenance
Loosening the crawlers
Cautiously unscrew the pressure valve (3) and loosen the crawler.
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Grease could squirt out from the cylinder opening.
Screw in the pressure valve and torque to 98-108 Nm.
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Tighten the crawler.
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Checking the crawler tension

The crawler seam (1) is half way between the idler and
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sprocket.
Check the crawler sag as shown in the figure.
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Crawler sag "A"
If the crawler sag is more than 15 mm, adjust the crawler.
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If necessary, tighten or loosen the crawler.
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Start the engine and rotate the crawler briefly.
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Caution: The area around the rotating crawler must be free of persons. Turn the starter switch to
the STOP position after turning and remove the key switch.
Recheck the crawler tension, readjusting it if necessary.
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Perform the procedures on the second crawler.
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10-15 mm
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