Toro Groundsmaster 4100 - Belt Maintenance; Servicing the Alternator Belt; Servicing the Air Conditioner Compressor Belt; Tensioning the Blade-Drive Belts

BeltMaintenance
ServicingtheAlternator
Belt
ServiceInterval:Aftertherst10hours
Every100hours
Propertensionofthebeltallows10mm(3/8inch)of
deectionwhenaforceof44N∙m(10ft-lb)isapplied
onthebeltmidwaybetweenthepulleys.
Ifthedeectionisnot10mm(3/8inch),loosenthe
alternator-mountingbolts(Figure113).
Note:Increaseordecreasethealternator-belt
tensionandtightenthebolts.Checkthedeectionof
thebeltagaintoensurethatthetensioniscorrect.
g020460
Figure113
1.Alternator
3.Compressor
2.Mountingbolt4.Idlerpulley
ServicingtheAir
ConditionerCompressor
Belt
ServiceInterval:Aftertherst10hours
Every100hours
Cabmodelonly
Checktheconditionandtensionofthebelt(Figure
113)afterevery100operatinghours.
1.Propertensionallows10mm(3/8inch)
deectionwhenaforceof44N(10lb)isapplied
onthebeltmidwaybetweenthepulleys.
2.Ifthedeectionisnot10mm(3/8inch),
loosentheidlerpulleymountingbolt(Figure
113).Increaseordecreasethecompressor
belttensionandtightenthebolt.Checkthe
deectionofthebeltagaintoensurethatthe
tensioniscorrect.
TensioningtheBlade-Drive
Belts
ServiceInterval:Aftertherst10hours
Every50hours
Whenproperlytensioned,theinsidemeasurement
oftheextensionspring(hooktohook)shouldbe
approximately8.3to9.5cm(3-1/4to3-3/4inches).
Oncethecorrectspringtensionisattained,adjustthe
stopbolt(carriagebolt)untilthereisapproximately2
to5mm(0.065to0.185inch)clearancebetweenthe
headoftheboltandtheidlerarm(Figure114).
Note:Ensurethatthebeltispositionedonthespring
sideofthebeltguide(Figure114).
g037383
Figure114
1.Extensionspring
5.Measurement(hookto
hook)—approximately8.3
to9.5cm(3-1/4to3-3/4
inches)
2.Stopbolt
6.Eyebolt
3.Flangenut7.Belt
4.Beltguide
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