Toro 03721 - Servicing the HD Dual Point Adjusters (DPA)

ServicingtheHDDualPoint
Adjusters(DPA)
1.Removeallparts(refertotheInstallationInstructionsfor
theHDDPAKit(ModelNo.120-7230)andtoFigure
34).
2.Applyanti-seizecompoundtotheinsideofthebushing
areaonthecarrierframeofthecuttingunit(Figure34).
3.Alignthekeysonangebushingstotheslotsinthe
frameandinstallthebushings(Figure34).
4.Installawavewasherontotheadjustershaftandslide
theadjustershaftintotheangebushingsintheframe
ofthecuttingunit(Figure34).
5.Securetheadjustershaftwithaatwasherandlocknut
(Figure34).Torquethelocknutto20to27N∙m(15
to20ft-lb).
Note:Thebedbaradjustershafthasleft-handthreads.
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Figure34
1.Shaftadjuster
4.Applyanti-seizecompound
here.
7.Applyanti-seizecompound
here.
10.Compressionspring
2.Wavewasher5.Flatwasher8.Bedbar-adjusterscrew
11.Spring-tensionnut
3.Flangebushing6.Locknut9.Hardenedwasher
6.Applyanti-seizecompoundtothethreadsofthe
bedbar-adjusterscrewthattintotheadjustershaft.
7.Threadthebedbar-adjusterscrewintotheadjuster
shaft.
8.Looselyinstallthehardenedwasher,spring,and
spring-tensionnutontotheadjusterscrew.
9.Installthebedbar,positioningthemountingears
betweenthewasherandthebedbaradjuster.
10.Securethebedbartoeachsideplatewiththebedbar
bolts(nutsonbolts)and6washers.
Note:Positionanylonwasheroneachsideofthe
sideplateboss.
Placeasteelwasheroutsideeachofthenylonwashers
(Figure34).
Torquethebedbarboltsto37to45N∙m(27to33
ft-lb).Tightenthelocknutsuntiltheoutsidesteel
washerstopsrotatingandendplayisremoved,butdo
notovertightenordeectthesideplates.Thewashers
ontheinsidemayhaveagap.
11.Tightenthenutoneachbedbar-adjusterassembly
untilthecompressionspringisfullycompressed,then
loosenthenut1/2turn(Figure34).
12.Repeattheprocedureontheotherendofthecutting
unit.
13.Adjustthebedknifetothereel.
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