drivepressureappliedtotherearaxle(reversemode)
andrearaxledynamicbraking.
Figure59
1.T estportB(Counter
balance)
2.T estportC(Fourwheel
drive)
TestPortD(Figure60),locatedonfrontofpump
assembly,underoperatorsseatplate.Usedtomeasure
steeringpressure.
TestPortE(Figure60),locatedonfrontofpump
assembly,underoperatorsseatplate.Usedtomeasure
liftcircuitpressure.
Figure60
1.T estportD(Steering)2.T estportE(Liftcircuit)
TestPortF(Figure61),locatedontopofrighthand
deckmanifold.Usedtomeasurecuttingunitcircuit
pressureforcuttingunits5,2and3.
TestPortG(Figure61),locatedontopoflefthanddeck
manifold.Usedtomeasurecuttingunitcircuitpressure
forcuttingunits1and4.
Figure61
1.T estportF(Decks)2.T estportG(Decks)
TestPortH(Figure62)locatedonreartractioncircuit
hardline.Usedtomeasurereversetractionpressure.
TestPortI(Figure62)locatedonfronttractioncircuit
hardline.Usedtomeasureforwardtractionpressure
Figure62
1.T estportH(Reverse)2.TestportI(Forward)
AdjustingtheCounterbalance
Thecounterbalancedial(Figure63)isusedtoadjustthe
pressureinthecounterbalancecircuit.Recommended
counterbalancepressureis620psi.Rotatetheadjusting
dial(Figure63)clockwisetoincreasethepressureor
counterclockwisetodecreasethepressure.
Figure63
1.Counterbalancedial
2.Tractionassistvalve
46