Toro 30602 - Checking the Hydraulic Lines and Hoses; Adjusting the Counterbalance Pressure

Figure74
1.Hydrauliclter
6.Oncethereservoirislled,starttheengineandletit
runatlowidleforapproximatelytwominutes.Activate
steeringandraise/lowercuttingunitsseveraltimesto
purgeairfromthesystem.Stoptheengineandcheck
forleaks.
CheckingtheHydraulicLines
andHoses
ServiceInterval:Every2years
Inspectthehydrauliclinesandhosesdailyforleaks,kinked
lines,loosemountingsupports,wear,loosettings,weather
deterioration,andchemicaldeterioration.Makeallnecessary
repairsbeforeoperating.
WARNING
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.
•Makesureallhydraulicuidhosesandlinesare
ingoodconditionandallhydraulicconnections
andttingsaretightbeforeapplyingpressureto
thehydraulicsystem.
•Keepyourbodyandhandsawayfrompin
holeleaksornozzlesthatejecthighpressure
hydraulicuid.
•Usecardboardorpapertondhydraulicleaks.
•Safelyrelieveallpressureinthehydraulicsystem
beforeperforminganyworkonthehydraulic
system.
•Seekimmediatemedicalattentionifuidis
injectedintoskin.
AdjustingtheCounterbalance
Pressure
Thecounterbalancetestport(Figure75)isusedtotest
thepressureinthecounterbalancecircuit.Recommended
counterbalancepressureis2241kPa(325psi).Toadjust
thecounterbalancepressure,loosenthelocknut,rotatethe
adjustingscrew(Figure75)clockwisetoincreasethepressure
orcounterclockwisetodecreasethepressureandtightenthe
locknut.Theenginemustberunningathighidle,thedeck
loweredandinoattocheckpressure.
Note:Thecastorwheelsofallthreecuttingunitsshould
remainonthegroundwhenadjustingthecounterbalanceand
withcounterbalanceapplied.
Figure75
1.Counterbalanceadjusting
screw
2.Counterbalancetestport
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