HydraulicMotorKit
TRX-16orTRX-20Trencher
ModelNo.131-0667
ThisproductcontainsachemicalorchemicalsknowntotheStateofCaliforniato
causecancer,birthdefects,orreproductiveharm.
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
FormNo.3411-315RevA
InstallationInstructions
WARNING
CALIFORNIA
Proposition65Warning
ProcedureDescription
1
2
3
4
5
Nopartsrequired
Cabletie
Hydraulicmotor1
Spacerplate
Coupler
Socket-headbolt(1/2x1-3/4inches)
Lockwasher(3/4inch)
Thread-lockingcompound1
Nopartsrequired
Nopartsrequired
Qty.
–
1Removethehydraulicmotor.
1
1
2
2
–
–
Preparethemachine.
Installthehydraulicmotor.
Connectthehydraulichoses.
Checkforleaksandservicethe
hydraulicuid.
Use
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OriginalInstructions(EN)
PrintedintheUSA
AllRightsReserved
*3411-315*A
1
2
PreparingtheMachine
NoPartsRequired
Procedure
1.Movethemachinetoalevelsurfaceandlowerthe
boom.
2.Engagetheparkingbrake,shutofftheengine,and
removethekeyfromtheignitionswitch.
3.Allowthehydraulicsystemtocool.
4.Rotatethetrenchercontrolclockwise(AofFigure1).
5.Movethetrencher-controlleverfullytotheforward
position(BofFigure1)andbackwardposition(Cof
Figure1)4or5times.
RemovingtheHydraulicMotor
fortheTrencherDrive
Partsneededforthisprocedure:
1
Cabletie
Procedure
1.Alignadrainpanunderthehydraulicmotorforthe
trencherdrive.
2.Wipecleanthehydraulichosesandttingsatthe
hydraulicmotorforthetrencherdrive(Figure2).
Figure1
Note:Movingthetrencher-controlleverbleeds
hydraulicpressurefromthehosesforthetrencher
motor.
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Figure2
1.Straighthydraulictting
(rear)
2.Hose(rear)
3.Securethecabletietotherearmosthydraulichoseat
thehydraulicmotorforthetrencherdrive(Figure2).
4.Removethe2hydraulichosesfromthestraight
hydraulicttinginthehydraulicmotor(Figure3).
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3.Cabletie
2
3
InstallingtheHydraulicMotor
Partsneededforthisprocedure:
1Hydraulicmotor
1
Spacerplate
1
Coupler
2
Socket-headbolt(1/2x1-3/4inches)
2
Lockwasher(3/4inch)
1Thread-lockingcompound
Figure3
1.Coupler(trencher-drive
shaft)
2.Straighthydraulictting4.Hydraulicmotor(old)
3.Socket-headbolts(1/2x
1-1/4inches)
5.Removethe2socket-headbolts(1/2x1-1/4inches)
thatsecurethehydraulicmotorforthetrencherdrive
totheheadofthetrencher,andremovethehydraulic
motor(Figure3).
Note:Discardthe2socket-headbolts(1/2x1-1/4
inches).
6.Drainthehydraulicuidfromthemotorintothedrain
pan.
7.Removethe2straighthydraulicttingsfromtheold
hydraulicmotor(Figure3).
Note:Discardtheoldhydraulicmotor.
8.Removethecouplerfromthetrencher-driveshaft
(Figure3).
Note:Discardtheoldcoupler.
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Procedure
1.Slidethenewcouplerontothetrencher-driveshaft
(Figure4).
2.Assemblethe2straighthydraulicttingsintothenew
hydraulicmotorforthetrencherdrive(Figure4)and
torquethettingsto135to164N∙m(99to121ft-lb).
Figure4
1.Coupler(trencher-drive
shaft)
2.Straighthydraulictting6.PortA(hydraulic
3.Spacerplate7.PortB(hydraulic
4.Lockwashers(3/4inch)
5.Socket-headbolts(1/2x
1-3/4inches)
motor—new)
motor—new)
3.Applyacoatofthread-lockingcompoundtothe
threadsofthe2newsocket-headbolts(1/2x1-3/4
inches).
3
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