Toro 41593 - Calibrating the Agitation Bypass Valve; Pump

Figure31
1.Open
3.Intermediateposition
2.Closed(0)
CalibratingtheAgitation
BypassValve
ServiceInterval:Yearly—Calibratetheagitationbypass
valve.
Important:IfyouhavetheProControl™ ™
™
XPSpray
SysteminstalledturnthepowerswitchtoOffnow.The
followingprocedureshouldbeperformedonlywhenthe
controllerisnotpowered.
1.Selectanopenatareatoperformthisprocedure.
2.Fillthespraytankwithcleanwater.
3.Verifytheagitationcontrolvalveisopen.
Note:Ifithasbeenadjustedopenitcompletelyat
thistime.
4.Settheparkingbrakeandstarttheengine.
5.MovethethrottlelevertotheFastposition.
6.Setthepumpswitchandtheagitationswitchtothe
Onposition.
7.Usetheapplicationrateswitchtoadjustthesprayer
systempressureonthegaugereads689kPa(100psi).
8.TurntheagitationswitchtotheOffpositionandread
thepressuregauge.
•Ifthepressuregaugeindicates689kPa(100psi),
theagitationbypassvalveisproperlycalibrated.
•Ifthepressuregaugeindicatesdifferently,continue
tothenextstep.
9.Adjusttheagitationbypassvalve(Figure32)onthe
backsideoftheagitationvalveuntilthesprayersystem
pressureindicatedonthegaugeindicates689kPa(100
psi).
Figure32
1.Agitationbypassvalve
10.TurnthepumpswitchtotheOffposition.Shiftthe
throttlelevertotheIdlepositionandturntheswitch
totheOffposition.
Pump
Thepumpislocatednearthebackofthetankontheleft
side(Figure33).
Figure33
1.Pump
2.Greasetting
32