Toro Reelmaster 5510-D - Page 253

TestProcedure(continued)
9.Withtheenginerunning,presstheenginespeedswitchtofullspeed(3,005
to3,055rpm)position.UsetheInfoCentertocheckthattheenginespeedis
correct.
10.VerifythepumpowatNoLoadasfollows:
Recordthetesterpressureandowreadingsatnoload.Unrestrictedpump
outputshouldbeapproximately18.5L/minute(4.9gallons/minute).
11.VerifythepumpowUnderLoadasfollows:
CAUTION
Donotclosethetestervalvefullywhenperformingthistest.Inthis
test,thehydraulictesterispositionedinanunprotectedpartofthe
steeringcircuit.
Pumpdamagecanoccuriftheuidowisfullyrestrictedbyfully
closingthetesterowcontrolvalve.
A.Monitorthetesterpressuregaugecarefullywhileyouslowlyclosethe
owcontrolvalveuntilyouget5,500kPa(800psi).
B.Recordthetesterpressureandowreadingsunderload.
12.Presstheenginespeedtolowspeed(1,175to1,225rpm)positionand
shutofftheengine.
13.Theunderloadtestowreading(step11B)shouldnotdropmorethan15%
whencomparedtothenoloadtestowreading(step10A).Adifferencein
owofmorethan15%,ortheinabilitytoachievespeciedpressuremay
indicate:
A.Arestrictioninthepumpinletline.
B.Thegearpump(P3)iswornandshouldberepairedorreplaced;referto
ServicingtheGearPump(page6–170).
14.Afteryoucompletethetesting,shutofftheengine,andthenreleasepressure
fromthehydraulicsystem;refertoReleasingPressurefromtheHydraulic
System(page6–8).
15.Disconnectthetester,andconnecttheremovedhydraulictube.
16.Starttheengine,checkforhydraulic-uidleaks,repairanyleaksas
necessary,andllthehydraulictankwiththecorrectquantityofnewhydraulic
uidbeforereturningthemachinetoservice.
17.Lowerandsecuretheoperatorseat.
Reelmaster
®
5410/5510/5610Series
Page6–135
HydraulicSystem:TestingtheHydraulicSystem
15216SLRevC