Case CX490D - Page 279

6-MAINTENANCE
Compressorbeltcheck
Thedrivebeltoftheair-conditioningcompressorshall
beperiodicallycheckedinordertogranttheproperop-
erationoftheair-conditioningsystem.
Tocheckthedrivebeltoftheair-conditioningcompres-
sor,proceedasfollows:
1.Stoptheengine,andremovethestarterkey.
2.Inspectthepulleysandthedrivebeltforexcessive
wearordamages.Makesurethatthedrivebeltis
correctlyengagedtothegroovesofthepulleys.
NOTICE:Thedrivebeltshallbereplacedifitis
stretchedorcrackedinordernottoletitwornout.
3.Checkthetensionofthedrivebeltbyapplyingn-
gerpressureofabout10kg(22.0lb)onthepoint
indicatedbytheblackarrow.Looseoftension
shouldbeabout5–7mm(0.2–0.3in).
SMIL16CEX1091AA3
Ifneeded,restorethepropertensionbyactingon
thetensioningscrew(1).
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