Toro 08743 - Page 104

TestProcedure(continued)
A.Isolatethefrontwheelmotorfromthetractioncircuitbydisconnecting
bothofthehydraulichosesfromthehydraulictubesabovethefrontwheel
motor.Capthehydraulictubesandconnectthehydraulictestertothe2
disconnectedhoses.Makesurethetesterisinstalledinthecorrectow
directionandthetesterowcontrolvalveisfullyopen;refertoFigure35.
g355159
Figure35
1.Hydraulictubes
3.Hydraulichose(forwarddirectionpressure)
2.Caps4.Hydraulichose(forwarddirectionreturn)
B.Cleanthehydraulicttingsandhydraulictubesateachrearwheelmotor.
C.Removeoneoftherearwheelmotorsfromthetractioncircuitby
disconnectingthetwohydrauliclinesatthemotor.Capthehydraulic
ttingsandlinesatthedisconnectedmotor.
D.Starttheengineandrunitatlow-idlespeed.Correctanyhydraulicuid
leaksatthetestconnectionsbeforecontinuingthetest.
E.Setthethrottletothefullspeed(3,400to3,500RPM).Verifytheengine
RPMatthedrivehubsorrubbercouplingwithanon-contacttachometer
(phototach).
F.Makesurehydraulicuidisatnormaloperatingtemperaturebyoperating
themachineforapproximately10minutes.
G.Engagetheparkingbrake.
H.Sitintheoperatorseatandslowlypushthetractionpedalintheforward
directionuntil69.0bar(1000PSI)isdisplayedonthetesterpressure
gauge.
I.Theinternalleakagefortheconnectedwheelmotorwillbeshownonthe
owmeter.Recordthetestresults.
J.Releasethetractionpedal,shutofftheengine,androtatetheconnected
wheelmotor90°.T estagainandrecordtheowmeterreading.
HydraulicSystem:TestingtheHydraulicSystem
Page5–34
SandPro
®
3040and5040
20251SLRevA