Toro Groundsmaster 5910 Series User Manual

PTOMowCircuitCuttingDeckBladeBraking(continued)
PRV NOT ENERGIZED
LC1, RV AND LC2 SHIFTED
PTO SWITCH OFF
1.5 CID
PRV
3000 PSI
P1
P2
M1
M2
LEFT DECK
OR1
.063”
LC110 PSI
SQ
110 PSI
OR2 .025”
600 PSI
RV
LC2
10 PSI
CD
G1
PUMP
RETURN
FLOW
g287725
Figure46
Theinertiaoftherotatingcuttingblades,however,effectivelyturnsthedeck
motorintoapumpcausinganincreaseinpressureastheowfromthemotor
comesupagainsttheclosedlogiccartridge(LC2).Whenthispressurebuilds
toapproximately41bar(600PSI),reliefvalve(RV)openswhichallowsasmall
amountofhydraulicowtoreturntotankthroughamanifoldsensingline(Figure
45).ThisowcausesapressureincreasethatshiftslogiccartridgeLC2toonce
againallowoilowfromthemotor(Figure46).Whenreturnpressuredrops
below41bar(600PSI),reliefvalve(RV)reseatsandcausesLC2tocloseagain
blockingreturnowfromthedeckmotortofurtherslowthecuttingblades.This
actionofthebrakereliefvalveopeningandthelogiccartridgeshiftingoccurs
severaltimesinaveryshorttimeframeasthebladesnallycometoastop.
Oncethebladeshavestopped,logiccartridgeLC2remainsintheunshifted
positiontokeepthedeckmotorfromrotating.
HydraulicSystem:HydraulicFlowDiagrams
Page5–32
Groundsmaster
®
5900&5910
16227SLRevB

Toro Groundsmaster 5910 Series Specifications

General

Brand	Toro
Model	Groundsmaster 5910 Series
Category	Lawn Mower
Language	English