Toro 74448 - Replacing the Pump Drive Belt; Adjusting the Push Arms

Figure44
1.Fixedidlerarm4.Mowerbelt
2.Squarehole
5.Beltguide
3.FixedIdlerpulley
6.Spring-loadedidlerpulley
5.Removetheoldbelt.
6.Installthenewbeltthroughthebeltguideandon
thepulleys(Figure44).
7.Insertaratchetwithashortextensionorabreaker
barintothesquareholeinthexedidlerarm
(Figure45).
Figure45
1.Ratchetwithshort
extensionorbreaker
bar
2.Squarehole
8.Toincreasethebelttension,rotatetheratchetor
breakerbarcounterclockwisetomovethexed
idlerarmuntilyoufeelincreasedresistanceandthe
spring-loadedidlerpulleystopsmoving.
Note:Donotincreasethebelttensionbeyondthe
pointwherethexedidlerarmstops.
9.Whileholdingthebeltintension,tightenthe2bolts
thatsecurethexedidlerarm.
10.Removetheratchetorbreakerbarfromthesquare
holeinthexedidlerarm.
11.Installthebeltcoversovertheoutsidespindles.
ReplacingthePumpDriveBelt
ServiceInterval:Every50hours
1.Removethemowerbeltrst;refertoReplacingthe
MowerBelt.
2.Removetheboltfromtheclutchstopandunplug
theclutchelectricalwire(Figure46).
3.Pullthespringloadedidlertotheside.
4.Removethetractionbeltfromtheengineandthe
hydraulicpumppulleys(Figure46).
5.Installthenewbeltaroundtheengineandthe
hydraulicpumppulleys(Figure46).
6.Pullthespring-loadedidlertothesideandalignthe
belt.
7.Releasethepressureonthespringloadedidler
(Figure46).
8.Installthemowerbelt.
Figure46
1.Belt4.Bolt
2.Clutchelectricalwire5.Clutch
3.Clutchstop
6.Idler
AdjustingthePushArms
Ifneeded,adjustthepusharmstoincreaseordecrease
themowerbelttension.
1.Loosenthejamnutandrotatetheballjoint
counterclockwise,oneturnatatime(Figure47).
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