Toro Groundsmaster 4300-D - Flushing the Hydraulic System

PrimingtheHydraulicPumps(continued)
(traction)pumphavesufcientuidduringinitialstart-upandrunning.The
pumpscanbeprimedbyusingaremotestarterswitch(refertoSpecialT ools
(page4–31))tocranktheenginewhichallowsthepumpstoprime.
Usethefollowingproceduretoprimethehydraulicpumps:
1.EnsurethatthekeyswitchisintheOFFpositionandthekeyisremoved
fromthekeyswitch.
2.Checkthehydraulic-uidlevelinthehydraulicreservoirandaddcorrect
quantityofuidifnecessary;refertotheOperator’sManual.
g193733
Figure79
1.B+terminal
3.Startermotor
2.Startersolenoid
Note:AbluewireconnectstothestartermotorsolenoidB+terminal(Figure
79).Itisnotnecessarytoremovethisbluewirefromthesolenoidterminal
forhydraulicpumppriming.
3.Connecttheremotestarterswitchelectricalleadstothestartermotor
solenoidB+terminalandpositivepostofthebattery.
4.Engagetheremotestarterswitchandcrankthestarterfor30secondsto
primethehydraulicpumps.Waitfor30secondstoallowthestartermotorand
startersolenoidtocool.Repeatthecrankingprocedureforthesecondtime.
5.Disconnecttheremotestarterswitchleadsfromthestartermotorsolenoid
terminalandpositivepostofthebattery.
FlushingtheHydraulicSystem
IMPORTANT
Flushthehydraulicsystemwheneverthereisaseverecomponent
failureorthesystemiscontaminated(forexample,theuidappears
milky,black,orcontainsmetalparticles).
Groundsmaster
®
4300-D
Page4–89
HydraulicSystem:ServiceandRepairs
16226SLRevC