Service Manual

FilteringtheClosed-LoopTractionCircuit(continued)
CAUTION
Duringthisprocedure,allthewheelswillbeoffthegroundand
rotating.
Ensurethatthemachineiswellsupportedsoitwillnotmoveand
accidentallyfalltopreventinjuringanyonearoundthemachine.
IMPORTANT
Whileengagingthetractioncircuit,monitortheindicatoronthehigh
owhydrauliclter.Iftheindicatorshouldshowred,eitherreduce
thepressureonthetractionpedalorreducetheenginespeedto
decreasethehydraulicowthroughthelter.
7.Withtheenginerunningatlow-idlespeed,slowlymovethetractionpedalto
theforwarddirectiontoallowowthroughthetractioncircuitandhigh-ow
lter.Keepthetractioncircuitengagedinforwardfor5minuteswhile
graduallyincreasingbothforwardpressureonthetractionpedalandengine
speeduntilengineisrunningat2,000rpm.Monitorthelterindicatorto
ensurethatthegreencolorisshowingduringoperation.
8.Withtheenginerunningat2,000rpmandtractionpedalmovedtotheforward
direction,periodicallyapplybrakestoincreasepressureinthetractioncircuit.
Whilemonitoringthelterindicator,continuethisprocessfor5moreminutes.
IMPORTANT
IfyouareusingalterthatisnottheTorohighowlterthatis
bi-directional,donotpressthetractionpedalinthereversedirection.
Iftheowisreversedwhenusingalterthatisnotbi-directional,
unwantedmaterialfromthelterwillagainenterthetractioncircuit.
9.Withtheenginerunningat2,000rpm,alternatelymovethetractionpedal
fromforwardtoreverse.Whilemonitoringthelterindicator,continuethis
processfor5moreminutes.
10.Shutofftheengineandremovethekeyfromthekeyswitch.
11.Removethehighowhydrauliclterandhydraulichosekitfromthemachine.
Connectthehydraulichosetothehydraulictube;refertoInstallingthe
HydraulicHoseandTube(O-RingFaceSealFitting)(page4–10).
Note:Ensurethatyouproperlytightenthehose.
12.Lowerthemachinetotheground.
13.Checkthehydraulic-uidlevelinthehydraulicreservoirandaddthecorrect
quantityofuidifnecessary.
HydraulicSystem:ServiceandRepairs
Page4–104
Groundsmaster5900TractionUnit
08159SLRevC