Toro 23518 - Belt Maintenance; Checking the Condition and Tension of the Belts; Adjusting the Auxiliary Pump Drive Belt; Replacing the Transmission-Drive Belt

BeltMaintenance
CheckingtheConditionand
TensionoftheBelts
ServiceInterval:Every50hours
1.Stoptheengine,settheparkingbrake,removethekey,
andwaitforallmovingpartstostopbeforeleavingthe
operatingposition.
2.Raisethemachineandsupportitwithjackstandswith
a460kg(1,015lb)capacity.
3.Checktheauxiliarypump-drivebeltconditionand
tension(Figure54).
Note:Thebeltshoulddeect1.3cm(1/2inch)when
1.4kg(3lb)offorceisappliedtothebeltmidway
betweentheauxiliarypumpandenginepulleys.Ifthe
belttensionistoohighortoolow ,refertoAdjusting
theAuxiliaryPumpDriveBelt(page42).
4.Checkconditionofthetransmission-drivebelt(Figure
54).
Note:Thetransmissionbelthasaautomatic-spring
tensioner.
Figure54
1.Transmission-drivebelt2.Auxiliarypump-drivebelt
AdjustingtheAuxiliaryPump
DriveBelt
1.Stoptheengine,settheparkingbrake,removethekey,
andwaitforallmovingpartstostopbeforeleavingthe
operatingposition.
2.Loosenthelocknut(3/8inch)thatsecurestheauxiliary
pump-idlerpulleytothechassisofthemachine.
Figure55
1.Auxiliarypump
4.Adjustmentslot(chassis)
2.Auxiliarypump-idlerpulley5.Auxiliarypump-drivebelt
3.Locknut(3/8inch)
3.Adjustthebelttensionasfollows:
•Movetheauxiliarypump-idlerpulleyrearwardand
outwardtotightenthebelt.
•Movetheauxiliarypump-idlerpulleyforwardand
inwardtoloosenthebelt.
Note:Thebeltshoulddeect1.3cm(1/2inch)when
1.4kg(3lb)offorceisappliedtothebeltmidway
betweentheauxiliarypumpandenginepulleys.
4.Tightenthelocknutto37to45N-m(27to33ft-lb).
Replacingthe
Transmission-DriveBelt
Note:Noadjustmentsarerequiredforbelttension.
1.Stoptheengine,settheparkingbrake,removethekey,
andwaitforallmovingpartstostopbeforeleavingthe
operatingposition.
2.Insertabreakerbarintothesocketofthebelt-tension
bracketandmovethebracketoutwardandforward
(Figure56).
42